Ten questions that separate the careful builders from the ones whose reviews tell the story.

Most homeowners vet a pool builder the way they vet a restaurant: they look at photos, read a few reviews, and go with a gut feel. That works about half the time. The other half becomes the thread on the local subreddit. Pool installations are too expensive and too disruptive to rely on gut feel; a structured conversation separates the careful operators quickly.

Question 1How many pools did you install in Ottawa last year?

You want a specific number. A builder doing 12–25 pools a year in the region is usually the sweet spot: enough volume to have smooth trade coordination, not so much that your project is a queue-entry. Very low numbers can mean they're new, part-time, or struggling. Very high numbers can mean your project manager is running ten sites at once.

Question 2Can I speak to three customers from last year?

Not "can I see three photos." Names, phone numbers, permission to call. A careful builder has this list printed. A cagey builder will redirect to their website gallery. Ask previous customers two questions: did the final bill match the quote, and would they use the same builder again for a second pool. The second question is the one that matters.

Question 3What is in this quote, and what is not?

The quote should be itemized. Shell or wall package, excavation, plumbing, electrical, coping, decking (by material and square footage), equipment (by make and model), fencing (or an explicit exclusion), permit fee, site restoration, and commissioning. A one-line quote for "turn-key pool installation — $XX,XXX" is not a quote; it is a deposit trap.

The quote's shape tells you more than its total. A careful builder cannot help itemizing; a careless one cannot stand to.

Question 4Who is on site, and how often?

Some builders have employee crews. Some subcontract almost everything. Neither is inherently wrong, but the answer tells you who to call when something is off. Ask specifically: who is the project manager, how often is that person physically on site, and how do they communicate (text, email, phone, project app).

Question 5What is your backfill specification?

This is a technical question most homeowners don't ask, which is why it is so useful. The material that goes back around your shell or walls after excavation affects the pool's structural life. Native clay is not an acceptable backfill; 3/4-inch crushed stone or similar is. A builder who answers this cleanly and specifically is a builder who thinks about longevity.

Question 6What is your warranty, and what is the shell manufacturer's?

These are two different things, and they should both be in writing. The manufacturer warranties the shell or wall system (usually decades on the structure, less on surface). The installer warranties the workmanship — plumbing, coping, deck, commissioning — and this is typically shorter (one to three years). Get the length, the exclusions, and the process for claims.

Question 7What's your policy on change orders?

Every pool project has change orders. The question is whether they are controlled and costed transparently, or whether they accumulate into a surprise at invoice. Ask for the process in writing before you sign. Good builders love this question. It screens them.

Question 8How do you handle winter pushback on spring projects?

An Ottawa-specific question. If weather in late April pushes your dig by three weeks, what happens? Does your slot move? Do you lose your season? Does the builder offer a target finish date and accept responsibility for slippage? The answer separates the clear communicators from the vague-promise operators.

Question 9Who handles the opening and closing each year?

Some builders include the first year's opening and closing; some sell a service plan; some leave you to find someone. Any answer is fine — the question is whether there's an answer at all. If your builder cannot tell you who closes your pool in October, you are on your own.

Question 10What happens if you go out of business?

Uncomfortable, worth asking. Is there a warranty administrator independent of the company? Are equipment warranties through the manufacturer, so they survive the installer? Is there a network of other builders who service each other's pools? A thoughtful answer exists; a dismissive one ("we've been around thirty years") is a red flag rather than a reassurance.