21 Essential Questions to Ask a Pool Builder in Nashville & Mt. Juliet (2026 Checklist)

Your backyard transformation shouldn't start with a shovel — it starts with a conversation. The questions you ask before signing a pool contract reveal more about a builder's reliability than any brochure or website. Here are the 21 questions that separate professional builders from contractors who aren't ready for your project.

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Section 1: Vetting for Reliability — Licensing, Insurance, and Local Experience

Question 1: Are you licensed as a Tennessee contractor for pool construction?

Every legitimate builder in our region must hold an appropriate Tennessee contractor license. Ask for their license number and verify it through the Tennessee Department of Commerce and Insurance (TDCI) website. A license number should appear on every quote and contract. If a builder can't provide one on request, that is a red flag.

Question 2: Can you provide a Certificate of Insurance naming me as additionally insured?

General liability coverage is the baseline, but you should also confirm workers' compensation coverage. Without it, an injury on your property could trigger a claim against your homeowner's policy. Ask specifically for a Certificate of Insurance (COI) naming you as additionally insured — this ensures you are notified if their policy lapses during your build.

Question 3: How many pools have you completed in Nashville or Mt. Juliet recently?

A builder with a strong local track record has navigated the specific permitting, soil, and site conditions in your area. Ask for completed project examples in Davidson and Wilson counties, not just general portfolio photos.

Question 4: Can I see a project you completed several years ago?

Recent photos look great — but how does a builder's craftsmanship hold up over time through Tennessee's weather cycles? Request to visit or see documentation of an older completed project. This is one of the most underused vetting tools available to homeowners.

Question 5: Can you provide three local references within a reasonable distance of my home?

A trustworthy builder won't hesitate. Ask references: Did the final scope match what was proposed? Were there any site surprises, and how were they handled? Would you hire them again?

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Section 2: The Build Process — Site Conditions, Subcontractors, and Middle Tennessee Soil

Question 6: How do you handle hitting limestone or the water table?

Middle Tennessee sits on a significant shelf of limestone. If rock or limestone is encountered during excavation, specialized equipment may be required, which can affect the excavation process. Every contract for a Middle Tennessee pool should address how rock excavation is handled — whether as a written contingency, a per-unit rate, or a defined allowance. Ask the builder to explain their rock clause in writing before you sign.

Question 7: Who actually performs the work — your own crew or subcontractors?

Some builders rely on a rotating group of subcontractors with no central oversight. You deserve a clear answer about who will be in your backyard, who manages each phase, and who your single point of contact is from the initial dig to the final walkthrough.

Question 8: What is your current lead time for a project start?

Permitting timelines, crew availability, and material lead times all affect when your project can begin. Get a realistic start date in writing and understand what factors could affect it.

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Section 3: Design and Material Specifications

Question 9: Why do you recommend fiberglass, gunite, or vinyl liner for my specific lot?

A professional will evaluate your slope, drainage, and site conditions before recommending a pool type — not simply push the option with the highest margin. Understanding the differences helps you ask better follow-up questions:

• Fiberglass — a factory-manufactured shell with a smooth, non-porous surface and manufacturer-designed configurations. Generally involves fewer on-site construction stages than comparable concrete construction.
• Gunite — constructed entirely on-site with high design flexibility. Customizable shapes, depths, and layouts make it the right choice for homeowners with specific design requirements.
• Vinyl liner — an inground pool option with a replaceable liner when its condition requires it.

Ask the builder to explain which type they recommend for your property and why.

Question 10: Do you provide a 3D design rendering before finalizing the plan?

A visual rendering helps you understand how the pool will relate to your existing patio, landscaping, and home exterior before any ground is broken. Ask whether this is included in the design process and at what stage it is provided.

Question 11: What pump and equipment technology do you install, and what are the efficiency considerations?

Variable frequency drive (VFD) pumps and modern automation systems offer meaningful efficiency advantages over older single-speed equipment. Ask what equipment is included in the proposal, what the efficiency characteristics are, and whether smart automation is a standard inclusion or an upgrade.

Question 12: How does your drainage plan integrate with my existing yard and foundation?

Middle Tennessee's seasonal rainfall and clay soil require a drainage plan that protects your home's foundation — not just the pool shell. Ask the builder to explain their drainage approach for your specific lot.

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Section 4: Proposals, Contracts, and Hidden Costs

Question 13: What exactly is NOT included in this proposal?

A base proposal often covers the pool structure and basic filtration — but may not include excavation haul-off, electrical work, decking, coping, safety fencing, landscaping restoration, or permitting fees. Ask the builder to identify every item that is excluded from the proposal so you can compare scopes accurately across multiple bids.

Question 14: How is the payment schedule structured?

A reasonable payment schedule ties payments to defined project milestones — not to calendar dates or contractor requests. Ask how many payments are required, what milestone triggers each one, and when the final payment is due. Final payment should occur only after the pool passes inspection and you have completed a walkthrough.

Question 15: Are there any allowances in this contract, and what do they cover?

Allowances are budget placeholders for items not yet fully specified. If actual costs exceed the allowance, you pay the difference. Ask the builder to identify every allowance in the proposal and explain what it covers. Where possible, request specific line items instead of allowances.

Question 16: What is the estimated completion timeline, and how are weather delays defined?

Without a clear definition of weather delays, a project can stretch well beyond the original estimate. Ask for an estimated completion timeline and a written explanation of what qualifies as a weather delay and how those days are tracked.

Question 17: What warranties do you provide — and who handles repairs after the build?

Understand the difference between manufacturer warranties (covering equipment like pumps and heaters) and workmanship warranties (covering the construction itself). Ask specifically: who handles a plumbing or structural issue that arises after the manufacturer warranty period? Confirm the builder will be reachable and in business to honor their workmanship commitments.

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Section 5: Permitting, Safety, and Post-Build Accountability

Question 18: Who is responsible for the safety barrier, and is it included in the proposal?

Pool projects must comply with applicable local permitting, inspection, and safety requirements — including barrier and fencing requirements. Ask whether the safety fence or barrier is included in the proposal, who installs it, and how permitting for it is handled. Do not assume it is included.

Question 19: Do you provide a walkthrough and orientation session after the pool is complete?

Your relationship with the builder shouldn't end when the water goes in. A professional builder provides an orientation covering chemistry basics, filtration operation, and automation setup. Ask whether a follow-up visit is included to check for any issues after the system has been running.

Question 20: How do you handle the permit process in Mt. Juliet or Davidson County?

Pool projects must comply with applicable local permitting, inspection, and safety requirements. Marlin Exteriors coordinates applicable project requirements as part of the construction process. Ask the builder to explain who files the permits, who coordinates inspections, and what happens if a permit is delayed. You should not need to manage permit filings yourself.

Question 21: What does your final inspection and completion process look like?

A rigorous final walkthrough should cover equipment calibration, drainage confirmation, safety barrier compliance, and a review of all warranty documentation. Ask whether the builder has a documented final inspection process and what it covers. If they don't, that is a red flag.

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How to Use This Checklist

Bring these questions to every contractor meeting. A builder who answers them clearly, provides documentation on request, and welcomes your scrutiny is demonstrating the kind of professionalism your project deserves. A builder who deflects, gets defensive, or can't produce license and insurance documents is telling you something important.

For a deeper look at how to evaluate and compare proposals — including scope comparison, change-order procedures, and contract essentials — see our pool contractor selection guide.

At Marlin Exteriors, we build fiberglass and gunite pools throughout Middle Tennessee and welcome every question on this list. Contact us to schedule a site consultation and receive a project-specific proposal — or explore our project gallery to see completed work across the region. If financing is part of your planning, visit our financial partners page to learn about the options we work with.