Eight questions to ask before you sign a pool contract
A concrete pool is one of the largest single investments a Melbourne homeowner will make outside the house itself. The contract you sign sets the tone for the next 12 to 18 weeks of your life and the next 30 plus years of the pool's. The decisions that protect a project happen well before any concrete is poured.
This guide is the considered list of questions to put to any pool builder before you sign. The eight below cover process, structure, finish, communication and accountability. They are written for buyers comparing builders for a premium home where the pool needs to integrate with the architecture rather than sit next to it.
If a builder cannot give a clear answer to all eight, the project will tell you why later.
The quick answer
Ask about who actually builds the pool, how the structure is engineered, how the design is locked in, what is and is not included, how progress and payments are tracked, what the warranty covers, what happens when something goes wrong and how the handover is managed.
The eight questions below sit underneath those headings. They are the ones that separate a contract that holds up from one that drifts. Read more about the way we work for context on how a considered builder approaches these decisions.
Question one: Will the build be delivered in-house or through subcontractors
This is the first and most important question. The answer shapes everything that follows.
A fully in-house build means one team is responsible for design, excavation, structural concrete, finishes, plumbing, equipment and handover. The same site supervisor is on the project from start to completion. Accountability sits with one company.
A subcontracted build means the builder coordinates a network of trades. Excavation might be one company, steel another, shotcrete another, tiling another, equipment install another. The builder is a project manager rather than a single accountable team.
Both models exist for good reasons. The premium failure mode lives in the second one. When five trades handle a job and a finish problem appears six months later, the question of who owns the fix can get expensive.
Ask the builder, in plain words, who is on the tools and who they work for. If the answer involves more than two company names, ask what happens when one of them disappears mid project.
Question two: How is the pool structurally engineered for my specific site
Every block in Melbourne is different. Sloping ground in Hawthorn, sandy soil in bayside suburbs, reactive clay across the inner east and high water tables on the Mornington Peninsula all change the structural answer.
A considered builder will commission a site-specific engineering design before any concrete work begins. That design covers steel reinforcement schedule, wall and floor thickness, dimensional setout and the way the pool is supported by the surrounding ground.
A generic builder will work from a standard structural detail and adjust on site. That can work on a textbook flat rectangular block. On a real Melbourne block, it is where structural cracking, settlement and shell movement start.
Ask to see the engineering documentation for a recent project on a comparable site. If the answer is vague, the structure is being treated as a commodity rather than an engineered design.
Question three: How is the design locked in before the contract is signed
The cost of a change order made on site is always higher than the cost of the same decision made on paper. The premium failure mode here is signing a contract before the design is resolved, then absorbing change after change as the build progresses.
A clear design process resolves the brief, the dimensions, the finishes, the equipment package, the coping, the surround and the integration with the home before the contract is committed. The drawings become the contract. There is no ambiguity about what is being built.
Ask the builder how they handle the design phase. Ask how many design revisions are included. Ask what happens when a change is requested during the build. The answers tell you whether the contract is a fixed brief or an open conversation.
For a project where the pool needs to respond to the architecture of the home, this question is the difference between an integrated result and a pool that fights the building line.
Question four: What is included in the price and what is not
A concrete pool contract is a long list of line items. The honest version of this question is not "is it all included" but "where are the exclusions". Common items that often sit outside the contract include:
- Site access provisions, including any temporary fencing, driveway protection or crane work
- Engineered retaining if the block slopes
- Permits and council fees
- Pool fencing to Victorian compliance standards
- Concrete coping and surrounding paving
- Pool finishes above the structural shell, particularly fully tiled finishes
- Equipment upgrades, including premium heat pumps, automation and sanitation
- Landscaping, lighting and any integration with the surrounding garden
- Final water care and commissioning
Ask the builder to walk you line by line through what is in and what is out. A contract that quotes a low number with twelve exclusions is more expensive at completion than a contract that quotes a higher number with everything in.
The contract you want is the one where the number you sign is the number you pay.
Question five: How are progress and payments tracked
A concrete pool is typically built in five to seven payment stages. Each stage is a defined milestone. Each payment should be tied to a completed and inspected piece of work, not to a calendar date.
Ask the builder for a written payment schedule. Ask what defines a stage as complete. Ask who signs it off. Ask how progress is reported between stages, whether through site photos, a project management app, scheduled updates or a single point of contact.
The premium failure mode in this area is the silent project. Three weeks pass with no update, then a payment request lands with no context. A considered builder communicates proactively. The information flow is part of the service.
For a project running 12 to 18 weeks, the rhythm of communication is part of what you are buying.
Question six: What does the warranty actually cover and for how long
Warranty language in pool contracts is often vague. The honest version of this question goes deeper than the headline number.
Ask the builder to specify:
- The structural warranty on the concrete shell, in years
- The warranty on the interior finish, in years, and what voids it
- The warranty on equipment, including pumps, filters, sanitisation and heating
- The warranty on tile, render or paint finishes
- The process for making a warranty claim
- Whether the warranty transfers to a new owner if the home is sold
A builder who has confidence in the build will give you precise answers. A builder who answers in generalities is signalling that the warranty is mostly a marketing line. The structural warranty on a well built concrete pool from a considered builder should sit in the decades, not the years.
Also ask whether the builder will still be in business in 25 years. The warranty is only as strong as the company behind it.
Question seven: What happens when something goes wrong
Every pool build will surface at least one unexpected issue. Hidden site conditions, a supplier delay, a weather window that closes, a council requirement that shifts mid project. The honest question is not whether issues happen but how the builder handles them when they do.
Ask the builder for two specific examples of recent projects where something went wrong and how it was resolved. Watch for the level of detail. A builder who has a thoughtful answer about a previous project, including what was learned, is one who treats problems as part of the work. See completed projects for examples of how the work resolves over time.
A builder who claims their projects never have issues is either new, dishonest, or both. Neither is the answer you want.
This is also the moment to ask about insurance. Public liability, construction insurance and any home indemnity insurance for the build should be in place and current. Ask for the certificates.
Question eight: How is handover managed and what does the first year look like
A pool is not complete the day the water goes in. A premium handover includes:
- A full walk through of the equipment and how to operate it
- Written documentation of every system, including model numbers and supplier contacts
- A water care schedule for the first six months
- A scheduled follow up visit, typically at three months
- Clear instructions for any maintenance routines specific to the finish
- A direct contact for any questions
Ask the builder what their handover involves. Ask what the first year of ownership looks like with their pools. Ask who calls you if you have not used the pool in three months.
The handover is a small part of the build budget. It is a large part of how the pool feels in year one and beyond.
A short note on Melbourne
Premium pool projects in Melbourne carry a few specific considerations that the eight questions above should surface.
Heritage overlays in homes in Melbourne's inner east like Toorak and Brighton, and parts of the Mornington Peninsula, can add weeks to the council approval process. Ask the builder how they manage permits in your area.
Sloping or narrow blocks in the inner east often require engineered structural solutions that go beyond a standard build. Ask for site-specific engineering, not a template.
Hidden services across older inner suburbs frequently surface during excavation. Ask how the builder handles them when they appear.
A Melbourne custom concrete pool builder in Melbourne who works regularly in your suburb will already know the council, the soil type, the access constraints and the design language of homes nearby. Local knowledge is part of what protects the project.
The honest summary
The contract is the easy part. Getting to a contract that protects the brief, the build and the finish is the work that happens before the signature.
Ask all eight questions. Write down the answers. Compare them across the builders you are considering. The builder who can answer all eight with detail and confidence is the one whose contract is worth signing.
Frequently asked questions
How long should the design phase take for a custom concrete pool?
For a considered build, the design phase typically runs four to eight weeks from initial brief to final drawings. That window allows for site assessment, engineering input, finish selection, equipment specification and revisions. A design phase that promises completion in a week is usually a sign that the brief is being templated rather than tailored.
What should I look for in a pool builder's contract?
A clear scope of works, a detailed inclusions list, a written exclusions list, an itemised payment schedule tied to milestones, defined warranty periods for the shell, finish and equipment, current insurance certificates and a clear dispute resolution process. The contract should also include the engineering documentation as an appendix rather than a separate document.
How many pool projects should a builder be running at once?
This varies by model. A volume builder can run 20 plus projects concurrently with a network of subcontractors. A boutique in-house builder will run one to three projects at any given time, allowing the in-house team to focus on each build through to handover. For a premium architectural project, the one-at-a-time model produces a more controlled result.
Do I need to engage an architect before talking to a pool builder?
Not necessarily. Many premium pool projects benefit from involving the builder during the architectural design phase rather than after. An in-house builder who works regularly with architects can contribute on structural feasibility, finish coordination and integration with the home before the design is locked in. Bring the builder into the conversation early.
What questions should I ask about pool finishes specifically?
Ask about the range of finishes the builder offers, how each finish is applied, the expected lifespan before any resurface or refresh, the maintenance requirements unique to that finish, and whether the finish is applied by the in-house team or a specialist subcontractor. Premium finishes such as fully tiled or hand applied mineral surfaces ask for more care during application and during the life of the pool.