
Seasonal opening
We uncover, reconnect and balance your pool so it's swim-ready the week you want it.
- Cover removal & cleaning
- Equipment reconnection
- Water balancing
One team for opening, weekly service, repairs and closing — quietly keeping your pool ready so you can just swim.
What we do
One team, one contact, from spring opening to winter cover. Every visit is documented so you always know exactly what was done and why.

We uncover, reconnect and balance your pool so it's swim-ready the week you want it.

Consistent visits that keep water clear, chemistry stable and equipment quietly efficient.

A proper winterization that protects your investment through Québec's harshest months.

Pumps, heaters, filters, salt systems — we diagnose the actual cause, then quote once.

Losing water faster than evaporation? We track the source before it damages your yard.

Fresh liners, replaced skimmers, and full pool refreshes that bring older pools back to life.
How we work
No sales pressure, no vague promises. Here's exactly what working with us looks like.
Send a few details and a photo. We'll respond quickly.
We assess your pool, then send a written scope and fixed price.
Recurring visits show up on the same day, same time, every week.
After each visit you get a written summary of chemistry, actions and any concerns.
Why Altis
You get the same person every visit — someone who knows your pool by memory, not by clipboard.
Every visit comes with a clear log so you always know what was done and what's next.
Fixed quotes for opening, closing and repairs. If we don't know the cost, we say so.
A Québec-based team you can actually reach — same technician, same phone number, season after season.
What clients say
"Honestly, I switched last July after my old guy ghosted me mid-summer. These guys showed up two days later, water was blue again by the next weekend. Been with them ever since."
"My heater kept shutting off. Two other companies told me I needed a new one — like $3k. Altis came, found it was a pressure switch, charged me $180. That kind of honesty is rare."
"I don't really know anything about pools tbh. What I love is they send a little report after each visit with what they did. My husband reads it, I don't lol, but at least we know."
"Same guy every Tuesday, he even remembers my dog's name. Small thing but it makes a difference when someone's coming into your yard every week."
"Our salt cell had been dying slowly for two summers and nobody caught it. First visit they flagged it, gave me options, no pressure. Replaced it the next week. Water's been perfect."
"Honestly, I switched last July after my old guy ghosted me mid-summer. These guys showed up two days later, water was blue again by the next weekend. Been with them ever since."
"My heater kept shutting off. Two other companies told me I needed a new one — like $3k. Altis came, found it was a pressure switch, charged me $180. That kind of honesty is rare."
"I don't really know anything about pools tbh. What I love is they send a little report after each visit with what they did. My husband reads it, I don't lol, but at least we know."
"Same guy every Tuesday, he even remembers my dog's name. Small thing but it makes a difference when someone's coming into your yard every week."
"Our salt cell had been dying slowly for two summers and nobody caught it. First visit they flagged it, gave me options, no pressure. Replaced it the next week. Water's been perfect."
"What I appreciate most is they don't try to upsell. Asked about a heat pump last year, they told me straight up mine still had 3-4 good years left. Who does that anymore?"
"Texted them on a Sunday morning because my filter was making a weird noise. Got a reply in 20 minutes. Was fixed Monday. I don't leave reviews usually but come on."
"Had a slow leak nobody could find. Losing like an inch a day. Their guy spent an afternoon with a listening device and found a crack in the return line. Saved my deck honestly."
"Fermeture done in October, they sent photos of the whole thing when we weren't home. Cover was tight, lines drained, and I could actually see what we paid for. First time that's happened."
"Bought a house in April with a pool that looked like a swamp. Green, gross, algae on the walls. Five days later I was in it. Still not sure how they did that but 10/10."
"What I appreciate most is they don't try to upsell. Asked about a heat pump last year, they told me straight up mine still had 3-4 good years left. Who does that anymore?"
"Texted them on a Sunday morning because my filter was making a weird noise. Got a reply in 20 minutes. Was fixed Monday. I don't leave reviews usually but come on."
"Had a slow leak nobody could find. Losing like an inch a day. Their guy spent an afternoon with a listening device and found a crack in the return line. Saved my deck honestly."
"Fermeture done in October, they sent photos of the whole thing when we weren't home. Cover was tight, lines drained, and I could actually see what we paid for. First time that's happened."
"Bought a house in April with a pool that looked like a swamp. Green, gross, algae on the walls. Five days later I was in it. Still not sure how they did that but 10/10."
Service area
From Montréal to Québec City — chances are we already cover your neighbourhood.
FAQ
Most new homes are added to a weekly route within 7 to 10 days once we confirm a slot near your neighbourhood.
Talk to us
Send us a few details about your pool and we'll come back with next steps and a fixed price.
Boul. René-Lévesque E
Montréal, QC H2L 0A1