Pool Renovation & Remodeling in Brentwood, TN: 2026 Homeowner''s Guide

An aging inground pool rarely fails all at once. More often, the surface becomes rough and stained, the coping starts to separate, the equipment runs harder than it used to, and the deck that once looked sharp now looks dated. Each problem is manageable on its own — but when several of them arrive at the same time, the renovation decision becomes a planning exercise, not just a repair call.

For homeowners in Brentwood and Williamson County, that planning exercise can extend beyond the pool itself. When the pool, surrounding deck, outdoor kitchen, and other backyard features have aged together, a coordinated renovation can make more sense than treating each component as an isolated project. This guide covers the full range of renovation options available in 2026 — from surface restoration to equipment modernization and outdoor living integration — so you can make an informed decision about what your backyard actually needs.

Repair, Renovate, Remodel, or Rebuild? Sorting Out the Scope

Before committing to any scope of work, it helps to understand which category your situation falls into. These terms are used loosely in the industry, but they describe meaningfully different amounts of work.

Repair is targeted work on a specific, isolated problem — a cracked return fitting, a failing light niche, a section of delaminated plaster. Repairs are appropriate when the rest of the pool is structurally sound and the surface still has useful life remaining. If the problem is genuinely isolated, a repair is the right answer.

Renovation addresses multiple components that have aged together — surface restoration combined with tile and coping replacement, equipment upgrades, and deck work. A renovation does not change the pool's fundamental shape or footprint; it restores and modernizes what is already there.

Remodeling implies a more significant change to the pool's design or function — adding a tanning ledge, reconfiguring the entry steps, expanding the deck footprint, or substantially changing the aesthetic direction of the backyard. Remodeling work often involves new gunite or concrete work on the existing shell, not just surface replacement.

Rebuilding — demolishing the existing pool and constructing a new one — is the most disruptive and expensive path. It is not the right answer simply because a pool is old or needs multiple components addressed. Rebuild becomes the conversation when the shell has structural problems that cannot be repaired cost-effectively, when the pool is fundamentally the wrong size or shape for how the property is used, or when the pool's location creates drainage or access problems that renovation cannot solve. If none of those conditions apply, renovation is almost certainly the more practical route.

Evaluating What Your Pool Actually Needs

A site evaluation is the only reliable way to understand what you are dealing with. That said, there are observable signs that point toward different categories of need.

Surface Condition

The interior finish is usually the most visible indicator of a pool's age. Signs that resurfacing is overdue include:

• A rough or abrasive texture that catches on swimsuits or scrapes skin — the smooth cement paste has worn away and aggregate is exposed
• Persistent staining across the floor and walls that does not respond to chemical treatment or acid washing
• Pitting, pockmarks, or visible flaking across the surface
• Hollow spots when you tap the floor or walls, indicating the finish has delaminated from the shell beneath

Middle Tennessee's limestone-heavy water accelerates surface wear by depositing calcium scale and disrupting water chemistry balance. Pools that have gone fifteen years or more without resurfacing may be at an age where surface condition deserves a closer look.

Structural Condition

Surface wear is manageable. Structural problems are a different conversation.

Cracks that run through the finish and into the gunite shell — particularly cracks that are widening, that show white mineral deposits leaching through, or that are accompanied by visible water loss — suggest the shell itself needs evaluation before surface work begins. A pool that is losing water faster than evaporation accounts for may have a plumbing leak, a crack in the shell, or both.

Structural problems do not automatically mean replacement. Many structural issues in gunite pools are repairable. But they need to be identified and addressed before a new surface is applied — otherwise the new finish will fail at the same locations.

Equipment Age and Condition

Pool equipment has a finite service life. Pumps, filters, heaters, and sanitization systems installed more than ten years ago are candidates for evaluation during any renovation. Signs that equipment is due for replacement include a pump that runs constantly without maintaining adequate circulation, a heater that cycles without reaching the set temperature, a filter that requires cleaning more frequently than it used to, and visible corrosion or scale buildup on the equipment pad.

Equipment that is still functional but inefficient — particularly older single-speed pumps — is worth replacing during a renovation even if it has not yet failed, because the energy savings over a full Tennessee swimming season are substantial.

Deck and Coping Condition

Cracked concrete, settled pavers, faded brick, or coping that is loose, chipped, or pulling away from the pool edge are all candidates for renovation. Where clay-heavy soil and drainage issues are present, water movement and soil conditions should be considered during deck renovation — decks that have settled unevenly or that direct runoff toward the equipment pad or the house foundation benefit from drainage correction as part of the renovation scope, not just a new surface.

Gunite Pool Resurfacing and Interior Finish Options

For gunite pools, the interior finish is a separate layer applied over the concrete shell. It has a finite service life, and replacing it is the most common renovation scope.

Finish Options

Standard white plaster is the most economical starting point. It delivers the classic bright-blue water appearance and is widely available. The trade-off is maintenance: plaster is porous, stains relatively easily, and typically requires resurfacing sooner than premium alternatives. In Middle Tennessee's hard-water environment, standard plaster tends to show wear earlier than in softer-water markets.

Quartz aggregate finishes blend crushed ceramic-coated quartz crystals into the cement matrix, producing a surface that is substantially harder and more stain-resistant than plain plaster. The color range is considerably broader than standard white, and the surface holds up better against the chemical fluctuations common in Williamson County's limestone-heavy water.

Pebble aggregate finishes use small, smooth river stones to create the most durable interior surface currently available. The texture is distinctive — slightly more tactile than quartz — and the natural stone appearance ages well. Pebble finishes are worth considering for homeowners who want to minimize future resurfacing cycles and are comfortable with the higher upfront cost.

For a detailed look at surface wear patterns and finish comparisons specific to Middle Tennessee, see our gunite pool resurfacing guide for Tennessee homeowners.

Fiberglass Pools: What Renovation Looks Like

Fiberglass pools do not resurface the way gunite pools do — the shell is a factory-manufactured composite, and its gel coat surface is not replaced in the field the way plaster is. Renovation for a fiberglass pool is primarily an equipment, coping, deck, and water feature conversation.

That said, fiberglass pools age in ways that are worth addressing. Coping that has separated from the shell edge, deck surfaces that have settled or cracked, equipment that is ten or more years old, and lighting that has never been updated are all legitimate renovation candidates. A fiberglass pool renovation can produce a dramatically refreshed backyard without touching the shell itself.

If the gel coat on a fiberglass shell has faded, chalked, or developed surface blistering, that is a separate conversation from a standard renovation — one that involves evaluating the shell's condition and discussing the available options with a contractor who has direct experience with fiberglass pool surfaces.

Timing Resurfacing Work

Late spring and early fall — after the last hard freeze and before the first — give new finishes the best conditions for curing. Summer heat is manageable but requires careful attention to fill timing and startup chemistry. Winter resurfacing is possible but introduces freeze-thaw risk during the curing period.

Williamson County's clay soil also affects drain timing. Clay holds moisture and expands when wet, creating upward pressure on pool shells when they are empty. Draining a pool without accounting for hydrostatic pressure — particularly after significant rainfall — risks the shell lifting or shifting. Experienced contractors plan drain timing around weather patterns and verify that hydrostatic relief valves are functional before beginning work.

Waterline Tile and Coping

Waterline tile and coping are the architectural frame of the pool. They are also among the first components to show their age, and replacing them during a resurfacing project is efficient — the pool is already drained and the work crews are already on-site.

Tile Options

The tile band at the waterline protects the bond beam from direct water contact and makes the pool easier to clean at the surface line. When grout fails or tiles crack, water can work its way into the beam and begin deteriorating the concrete beneath.

Current tile options for Brentwood renovations include glass mosaic tile (reflective, contemporary, stain-resistant), large-format porcelain (dense, low-maintenance, minimal grout lines), and natural stone (travertine and limestone complement the Tennessee landscape and age gracefully with proper sealing).

Coping Options

Coping is the cap that runs along the pool's perimeter edge. It defines the transition between the pool shell and the surrounding deck and takes significant wear from foot traffic, pool chemicals, and weather.

Cantilevered concrete coping offers a clean, modern profile and integrates seamlessly with poured concrete decks. Natural stone coping — travertine, bluestone, or limestone — stays cooler underfoot during Tennessee summers than concrete or brick, which matters on a deck that gets full afternoon sun. Bullnose pavers provide a traditional look and are easy to replace individually if a section is damaged.

Replacing tile and coping during a resurfacing project avoids a second drain-and-refill cycle and additional mobilization costs. For homeowners who are already investing in the surface, adding tile and coping to the scope is almost always the more economical decision.

Pool Deck Renovation

The deck surrounding the pool is often the component that most visibly dates a backyard. Cracked concrete, settled pavers, or a layout that no longer fits how the family uses the space are all strong candidates for renovation.

Deck Materials

Brushed or stamped concrete is the most common deck surface in Middle Tennessee. It is durable, relatively low-maintenance, and can be resurfaced or overlaid if the base is still structurally sound. Stamped patterns can replicate stone or tile at a lower cost than natural materials.

Travertine and natural stone pavers are a popular choice for Brentwood renovations. The material stays noticeably cooler than concrete in direct sun, drains well through the joints, and individual pavers can be lifted and reset if the base settles unevenly — which can occur in clay-heavy soil conditions. Natural stone complements the Tennessee landscape and holds its appearance well over time.

Concrete pavers offer a middle ground: more design flexibility than poured concrete, easier to repair than a monolithic slab, and available in a wide range of colors and profiles.

Drainage and Grading

Deck renovations are the right time to address drainage problems around the pool. Williamson County's clay soil does not absorb water quickly, and improper grading can direct runoff toward the pool equipment pad, toward the house foundation, or into the pool itself.

If water pools on the deck after rain, if the equipment pad sits in a low spot, or if the deck has settled unevenly toward the pool edge, a renovation that includes regrading and drainage correction will prevent those problems from recurring under the new surface. Properties with significant grade changes near the pool area may also need retaining wall work coordinated with the deck renovation.

When Existing Landscaping and Site Features Affect the Deck Scope

On properties where the pool is surrounded by established landscaping — mature trees, planted beds, irrigation systems, or hardscape features that have been in place for years — deck renovation requires more careful planning than on a cleared site.

Tree roots near the pool perimeter can affect excavation and base preparation. Irrigation lines that run under the existing deck need to be located and protected before demolition begins. Landscape features that are being retained need to be accounted for in the new deck layout. None of these conditions make a deck renovation impractical, but they do affect how the work is sequenced and what the contractor needs to know before mobilizing.

A site evaluation that walks the full perimeter — not just the pool shell — is the most reliable way to identify these factors before the project begins.

Equipment Modernization

Pool equipment has changed significantly over the past decade. A renovation is a natural opportunity to modernize components that are aging, inefficient, or no longer meeting the household's needs.

Variable-Speed Pumps

Single-speed pumps run at full power whenever they are on. Variable-speed pumps adjust their operating speed to match the task — lower speeds for filtration, higher speeds for running a water feature or backwashing the filter. The energy difference between the two is substantial over a full season of operation, and Tennessee's swimming season can run from April through October with the right equipment.

Variable-speed pumps are now the standard recommendation for new installations and renovations in Middle Tennessee. They are quieter than single-speed models and allow more flexible scheduling through automation systems.

Filtration

Sand filters are the most common type in older pools. They are reliable but require backwashing to clean and have a finite media life. Cartridge filters offer finer filtration without backwashing but require periodic cartridge cleaning and replacement. DE (diatomaceous earth) filters provide the finest filtration of the three but involve more maintenance.

If your current filter is undersized for the pool volume or is more than ten years old, a renovation is a practical time to evaluate whether an upgrade makes sense.

Sanitization Systems

Saltwater systems generate chlorine on-site from dissolved salt, eliminating the need to handle and store liquid or tablet chlorine. The water feels noticeably softer and gentler on skin and eyes. Salt systems do require monitoring — the salt cell has a service life and the water chemistry still needs regular testing — but many families find the day-to-day experience significantly more comfortable than a traditionally chlorinated pool.

UV and ozone sanitizers can be added alongside a salt or chlorine system to reduce the total chemical load. These systems neutralize contaminants that chlorine alone may not address and are worth considering for households with members who have chemical sensitivities.

Heaters and Heat Pumps

Gas heaters heat water quickly and are effective even in cold ambient temperatures, making them a good choice for pools that are used intermittently or need to be brought up to temperature quickly. Heat pumps extract warmth from the ambient air and transfer it to the water — a more energy-efficient approach when ambient temperatures are above roughly 50°F. For a pool used regularly through the shoulder seasons, a heat pump is typically the more economical long-term choice.

Pool Automation and Smart Controls

Modern automation systems connect your pump, heater, lighting, and water features to a single controller accessible from a smartphone app. You can adjust the water temperature on your way home, schedule the pump to run during off-peak hours, change the LED lighting color for an evening gathering, or receive an alert if the system detects an unusual condition.

Automation is most valuable when it is installed as part of a broader equipment upgrade, because the controller can manage all the new components from a single interface. Retrofitting automation onto older, mismatched equipment is possible but more complicated and may not deliver the same level of integration. If a renovation is already touching the pump, heater, and lighting, adding automation at the same time is the most efficient path.

LED Lighting

Older incandescent pool lights are energy-intensive and have a relatively short bulb life. LED replacement fixtures use a fraction of the power, last significantly longer, and offer color-changing capability that incandescent lights cannot match.

A pool renovation — when the pool is already drained — is the most practical time to replace light fixtures, since the work can be done without a separate drain-and-refill cycle. Color-changing LED systems allow the pool to shift from white light for everyday use to colored sequences for evening entertaining. For a backyard that is used regularly after dark, updated lighting changes how the space feels as much as any surface or deck improvement.

Water Features

Adding water features during a renovation is a different planning exercise than specifying them for a new build. The existing pool's plumbing layout, equipment capacity, and deck configuration all shape what is practical and what requires more significant modification.

Water sheers and scuppers — thin, laminar sheets of water that fall from a raised wall or raised bond beam into the pool — are among the more straightforward additions during a renovation. They require a dedicated supply line and a return to the equipment pad, but they do not demand major structural changes to the pool shell itself. The visual effect is clean and contemporary, and they integrate well with the flat-plane deck aesthetics common in current renovation work.

Deck jets arc individual streams of water from flush-mounted fittings in the deck surface into the pool. Because the supply plumbing runs under the deck, deck jets are most cost-effective when the deck is already being replaced — the lines can be laid before the new surface goes down. Retrofitting deck jets into an existing finished deck requires cutting and patching, which adds scope and cost.

Bubblers are low-profile fittings installed in shallow areas — tanning ledges, entry steps, or wading zones — that push a gentle column of water upward. If a tanning ledge addition is part of the renovation scope, incorporating bubblers at that stage is efficient: the plumbing is already open and the gunite work is already planned.

Waterfalls and raised spillways built from natural or manufactured stone require more structural planning. A freestanding waterfall feature needs a footing, a supply line sized for the volume of water it will move, and a pump with sufficient capacity to run the feature alongside the pool's primary circulation. Before committing to a waterfall during a renovation, it is worth confirming that the existing pump and equipment pad can support the additional load — or budgeting for the equipment upgrade alongside the feature.

Pump and plumbing capacity is the practical constraint that governs all of these decisions. A variable-speed pump sized for a pool's base circulation may not have the reserve capacity to run a waterfall and deck jets simultaneously without affecting filtration performance. Adding water features to an existing pool is an equipment conversation as much as a design conversation. A contractor who evaluates the existing system before specifying features will produce a more reliable result than one who designs the features and figures out the equipment later.

For a detailed look at water feature types and design considerations across Middle Tennessee, see our pool water feature installation guide for Franklin, TN.

Tanning Ledges, Steps, and Interior Configuration Changes

A tanning ledge — a shallow, flat platform at one end of the pool, typically six to twelve inches deep — is one of the most requested features in current renovations. It provides a space for lounge chairs in the water, a safe wading area for young children, and a visual anchor for the pool's design.

Adding a tanning ledge to an existing gunite pool is structurally feasible in many cases, though it requires excavation and new gunite work at the ledge location. The scope and cost depend on the existing pool's shape, the depth of the surrounding shell, and the site conditions. A site evaluation is the only reliable way to determine whether a ledge addition is practical for a specific pool.

Older pools often have step configurations that feel dated or that no longer serve the household's needs — narrow entry steps, a single corner step unit, or no bench seating at all. During a renovation that involves draining and resurfacing, it is possible to modify or add interior steps and benches using new gunite work. As with tanning ledges, the feasibility depends on the existing shell geometry and the site conditions. Modifications that require removing or significantly altering the existing shell structure are more involved than additions that can be built against an existing wall.

When the Renovation Scope Grows: Planning a Whole-Backyard Project

One of the more common planning challenges in pool renovation is scope expansion. A homeowner starts with a straightforward resurfacing project, and during the site evaluation it becomes clear that the coping is failing, the deck has drainage problems, the equipment is fifteen years old, and the outdoor kitchen that was added a decade ago has never been properly integrated with the pool's electrical and plumbing systems. Each of those findings is legitimate — and addressing them together is almost always more efficient than treating them as separate projects.

The challenge is that scope expansion changes the project's timeline, budget, and sequencing requirements. A resurfacing project can be completed in a matter of weeks. A full renovation that includes deck replacement, equipment upgrades, new water features, and outdoor living improvements is a multi-phase project that needs to be planned and sequenced carefully.

The right response to scope expansion is not to compress the timeline or skip phases to keep the project manageable. It is to plan the full scope from the beginning, sequence the work correctly, and budget for what the project actually requires. A contractor who identifies the full scope during the site evaluation — rather than discovering it phase by phase — will produce a more reliable result and fewer surprises.

Coordinating Pool Renovation with Outdoor Living Work

When a pool renovation is happening alongside outdoor kitchen construction, pergola installation, fire feature work, or other backyard improvements, the sequencing of electrical, gas, and plumbing runs matters. Conduit and gas lines that need to run under the deck or patio should be laid before the new surface goes down. A pergola post location that conflicts with pool equipment access is much easier to resolve on paper than after the concrete has been poured.

Coordinating these elements with the pool renovation — rather than treating them as separate projects with separate contractors — allows the hardscape, electrical, and gas work to be planned together and avoids the disruption of cutting up a finished surface to run infrastructure that should have been planned from the start.

Explore our gallery to see examples of complete backyard transformations in Middle Tennessee.

Retaining Walls and Grade Management

Properties with significant grade changes near the pool area may need retaining wall work coordinated with the deck renovation. Aging timber or block retaining walls that are leaning, cracking, or failing are both an aesthetic problem and a potential drainage issue — a failing wall can redirect water toward the pool or the house foundation.

Replacing a retaining wall during a pool renovation allows the hardscape work to be coordinated with the deck and coping replacement, producing a more cohesive result and avoiding the disruption of a second mobilization. Natural stone and concrete block walls are both practical options for renovation projects; the right choice depends on the height of the wall, the load it needs to retain, and the aesthetic direction of the project.

Brentwood Permitting Considerations

Brentwood is a separate municipality from Metro Nashville and from the City of Franklin. Pool renovation work that changes the pool's footprint, adds structural elements, or involves electrical, plumbing, deck, or other changes may have permitting implications. Project-specific requirements should be confirmed with the City of Brentwood's building department before work begins.

Before finalizing the scope of any renovation, confirming the specific permit requirements with the City of Brentwood is a practical early step. Requirements can vary based on the nature of the work, the property's zoning, and whether the project involves changes to the pool's footprint or the surrounding hardscape. A contractor who is familiar with Brentwood's permit process can help identify which elements of the scope require review before work begins.

Some Brentwood neighborhoods have HOA or architectural review requirements. Renovation work that changes the pool's appearance — new tile color, coping material, deck surface — may require HOA or architectural review approval before work begins. Confirming the approval process early prevents delays once the project is underway.

Project Sequencing: How a Renovation Comes Together

A well-planned renovation sequences the work so that each phase builds on the previous one without creating rework. The general order for a comprehensive Brentwood pool renovation:

1. Site evaluation and scope definition — Assess the shell, equipment, deck, coping, and surrounding site conditions to establish what needs to be addressed and in what order. This is also the time to identify any existing landscaping, irrigation, or hardscape features that will affect how the work is sequenced.
2. Permitting — Identify which elements of the scope require City of Brentwood permits and submit applications before work begins.
3. Equipment and plumbing work — Address any plumbing repairs, equipment replacement, or new electrical service before the deck is disturbed. Running new conduit or plumbing lines after the deck is poured means cutting it up.
4. Deck demolition and drainage correction — Remove the existing deck, address any drainage or grading issues, and prepare the base for the new surface. Retaining wall work and irrigation adjustments happen at this stage.
5. Structural work on the shell — Any gunite repairs, tanning ledge additions, or interior configuration changes happen while the pool is drained and before the new surface is applied.
6. Tile and coping installation — New waterline tile and coping are set before the interior finish is applied.
7. Interior resurfacing — The new finish is applied and the pool is filled. Startup chemistry and curing procedures follow the finish manufacturer's guidelines.
8. Deck surface and hardscape — The new deck surface, pavers, or stone work is completed after the pool is filled and the perimeter is stable. Outdoor kitchen, pergola, and fire feature work is coordinated at this stage.
9. Water features, automation, and lighting — Final connections for water features, automation systems, and LED lighting are completed and tested.

Trying to compress this sequence — or doing components out of order to save time — typically creates problems that cost more to fix than the time saved.

Financing a Pool Renovation

Renovation projects vary widely in scope and cost depending on which components are being addressed. Surface-only resurfacing, a full renovation combining surface work with equipment upgrades and deck replacement, and a comprehensive backyard modernization are all different conversations with different price points.

Marlin Exteriors works with financing partners who offer options for home improvement projects. Visit our financial partners page to learn about the programs currently available, including VistaFi and Regions Bank financing options.

Working with Marlin Exteriors on Your Brentwood Renovation

Marlin Exteriors has more than 20 years of construction experience serving homeowners across Middle Tennessee, including Brentwood and Williamson County. Our work in this market includes both new pool construction and renovation projects on existing inground pools across a range of pool types, lot configurations, and backyard conditions.

If you have a gunite pool that needs resurfacing, a fiberglass pool with aging equipment, or a backyard that needs a broader modernization, we are happy to walk through the options with you. A site visit is the most reliable way to assess what your specific pool needs and what is structurally practical given its current condition.

For homeowners in other parts of Middle Tennessee, see our renovation guides for Nashville and the Metro area, Mt. Juliet and Wilson County, and Franklin and Williamson County, or visit our Brentwood service page for more information about the work we do in the area.

Contact us to start a conversation about your Brentwood pool renovation project.