Opening
As soon as the ice is gone for good, sometimes as early as mid-April depending on the region.
Ideally, according to CAA-Québec: open before the water reaches 21 °C (70 °F), to limit algae.
2026 closings: book your date
In-ground pool specialist in Laval and the North Shore
Openings, closings, liner replacement, leak detection and repairs. Prices shown up front, and we answer you directly, 7 days a week.
Free, no obligation
- 8 yearsin the pool industry
- 7 days a weekweekends included
- Prices up frontbefore you book
- Laval and North ShoreMontreal and South Shore too
Services
Six services. One specialist.
Pick a service to see what’s included and the starting price.
- 01Pool closingLines emptied and plugged, filtration winterized.from $160
- 02Pool openingFiltration reconnected, leak check, shock treatment and start-up.from $160
- 03Turnkey openingFull drain, deep clean, fresh water, then start-up as soon as the pool is full.from $650
- 04Leak detectionIn the liner or in the plumbing: we find where the water is going.from $250
- 05Liner replacementOld liner out, new liner in, on in-ground pools.On quote
- 06Repairs and equipmentPlumbing and anything else on your pool; equipment sales and installation.On quote
Real jobs
Photos from our own jobs, not a stock library.
Before, during, after: each series follows one of our jobs, photographed on site.
Same pool from start to finish
Liner replacement on a freeform pool
Same pool from start to finish
Liner replacement on a rectangular pool
Same pool from start to finish
Liner replacement on a pool with a paver deck
One job, step by step
Repairing a leak under the concrete deck
Pool closing
What a closing actually involves
Three steps, done in order, so your pool gets through the winter with no bad surprise in the spring.
8years in the
pool industry
Who comes to your home
We answer the phone ourselves
We bring eight years of experience in the pool industry, from high-end construction to maintenance. We give you the price and schedule your visit ourselves, with no middleman.
- In-ground poolsOur specialty: openings, closings, liners, leaks and repairs.
- Launch pricingA new business, with prices set to build a client base.
- Grouped appointmentsFurther from Laval, we group appointments by area to keep fees down.
- 7 days a weekWeekends included.
Pricing
Clear prices, shown up front
Base prices in Laval. Elsewhere, the price varies with the distance: we confirm it before the visit.
- Laval and North Shore Our main area. Base price in Laval; on the North Shore, the price can vary with the distance.
- Montreal Travel fee added.
- South Shore Higher fee; appointments grouped by area.
- Pool openingFiltration reconnected, leak check, shock treatment, start-up.from $160
- Turnkey openingDrain, deep clean, refill with fresh water, start-up as soon as the pool is full.from $650
- Pool closingLines emptied and plugged, filtration winterized.from $160
- Liner leak detectionWe locate the leak in the pool liner.$250
- Plumbing pressure testWe check whether the leak is in the plumbing.$350
- Liner replacementIn-ground pools. Price depends on your pool and the distance.On quote
- Repairs and equipmentPlumbing, repairs, equipment sales and installation.On quote
Calendar
The right time to open and close your pool
Closing
CAA-Québec calls October the ideal month. Quebec pool retailers advise closing as late as possible, just before the first frost: end of October, or early November in southern Quebec.
The benchmark: water below 10 °C (50 °F), which slows algae and keeps the water clear until spring.
Sources: CAA-Québec and MétéoMédia.
Book my closingService area
Laval and the North Shore are our main area. Further out? We travel.
The price goes up with the distance. For a liner replacement, we travel up to about an hour away.
- Laval and North ShoreOur main area. Base price in Laval; on the North Shore, the price can vary with the distance.
- MontrealWe come to you, with a travel fee added.
- South ShoreHigher fee. Appointments are grouped by area, several on the same day.
- Laval
- Blainville
- Boisbriand
- Bois-des-Filion
- Deux-Montagnes
- Lorraine
- Mascouche
- Mirabel
- Rosemère
- Saint-Eustache
- Sainte-Thérèse
- Terrebonne
Do you service above-ground pools?
We specialize in in-ground pools: openings, closings, liners, leaks and repairs. For an above-ground pool, give us a call: we will tell you if we can help.
How is the price calculated?
The prices shown are our base prices, in Laval. The further away you are, the higher the travel fee. We confirm the price before the visit.
Do you go to Montreal and the South Shore?
Yes. In Montreal, a travel fee is added. On the South Shore, the fee is higher and appointments are grouped by area, several on the same day.
What is a turnkey opening?
We fully drain the pool, deep-clean it, then refill it with fresh water using your garden hose. Once the pool is full, we come back the same day to start it up.
My pool is losing water. Where do I start?
There are two tests: liner leak detection ($250) and a plumbing pressure test ($350). Describe what you are seeing and we will tell you which one to start with.
When should I close my pool?
CAA-Québec calls October the ideal month. Quebec pool retailers advise waiting until the water is below 10 °C (50 °F), just before the first frost: end of October, or early November in southern Quebec.
Are you available on weekends?
Yes. We work 7 days a week, weekends included.
Free quote
Three questions, one minute, and we call you back.
Tell us what you need and where your pool is. We call you back to confirm the price and the date.
- (263) 379-7507
- info@piscineleviathan.ca
- Available 7 days a week