
Local service
Thermos replacement in Mercier–Hochelaga-Maisonneuve
Your glazier in Mercier–Hochelaga-Maisonneuve for thermos glass replacement: we replace only the sealed unit in your existing frame — custom glass, free diagnosis, transparent pricing.
Local expert
Your thermos specialist in Mercier–Hochelaga-Maisonneuve
Fog between the panes means the seal on your sealed unit has failed. In Hochelaga-Maisonneuve and Mercier, the original double-hung windows of brick triplexes, often a century old, are now massively reaching the end of their life.
Good news: replacing the whole window is rarely necessary. We replace only the faulty sealed unit within the existing frame, without touching the brick or woodwork.
Custom glass for non-standard dimensions, free diagnosis, transparent pricing from $150.

Local context
From Hochelaga to Mercier-Est: plexes to postwar bungalows
The borough changes character from west to east. In Hochelaga and Maisonneuve, around the Promenade Ontario and Maisonneuve Market, brick plexes with outdoor staircases and street-facing balconies dominate. Heading toward Mercier-Ouest, then Mercier-Est and Tétreaultville, you see more duplexes, bungalows and small postwar apartment buildings, with sliding or casement windows in more standard sizes that are usually simpler to measure.
Near Notre-Dame Street, the port and the rail lines, noise often keeps windows shut, and a home that's rarely aired out builds up more indoor humidity. Once a seal lets go, the fog between the panes is there for good. We replace it with a custom unit; triple glazing can cut some of the traffic noise if the frame is deep enough. Glass balcony doors get tempered glass.
Second- and third-floor windows are often reachable only from inside, so give your tenants notice and clear the units involved. Residential streets in Hochelaga are narrow and parking is tight, so let us know if there's lane access. If you own a plex, group the foggy windows from every unit into one request: a single free assessment covers them all and keeps the quote simple.
Areas served
- Hochelaga
- Maisonneuve
- Viauville
- Mercier-Ouest
- Mercier-Est
- Tétreaultville
- Longue-Pointe
Why it happens here
Mercier–Hochelaga-Maisonneuve: why your windows fog up
Dense west, roomier east
Brick plexes in Hochelaga, duplexes and bungalows toward Mercier-Est.
Several units
Own a plex? One free assessment covers the windows in all your units.
Near Notre-Dame
Triple glazing can reduce some traffic noise, if the frame allows it.
Lane access
Narrow streets, tight parking: the back lane often makes delivery easier.
Our services
Our services in Mercier–Hochelaga-Maisonneuve
Thermos replacement
We replace the failed sealed unit inside your existing frame — no need to change the whole window.
Learn moreFoggy glass / condensation between panes
Diagnosis of permanent fogging between panes and sealed unit replacement.
Learn moreGlass & window repair
Broken or cracked glass? Fast on-site glass replacement, all sizes.
Learn moreDouble & triple glazing
Upgrade your insulation with a double or triple argon-filled sealed unit.
Learn morePatio door & French door
Sealed unit replacement for your sliding and French doors.
Learn moreCustom glass & mirrors
Custom-cut glass and mirrors for all your applications.
Learn moreCommercial glazing
Glazing solutions for shops, offices and buildings across Greater Montreal.
Learn moreNeighbouring areas
We also serve nearby areas
Simple and fast
How it works in Mercier–Hochelaga-Maisonneuve
Call or photo
Send a photo of your foggy window or call us — we'll guide you.
Diagnosis & measurement
We measure your sealed unit and confirm the diagnosis, free of charge.
Custom fabrication
Your sealed unit is custom-made and ready within 24 to 72 hours.
Guaranteed installation
Clean installation with a written warranty included.
FAQ
Questions about Mercier–Hochelaga-Maisonneuve
Do you serve Mercier–Hochelaga-Maisonneuve?
Yes, we work throughout the area, from Ontario Street to Mercier-Est. Diagnosis and travel are free within the neighbourhood.
What are the timelines in Hochelaga?
Diagnosis is done quickly on site, then the sealed unit is custom-made within 24 to 72 hours.
Do you replace the sealed unit of an old triplex?
Absolutely. We custom-cut glass for each window and install it in the existing frame, without touching the brick or woodwork.
I own a triplex in Hochelaga. Do my tenants need to be home?
We need access to every unit involved, both for measuring and for installation. Give your tenants the required notice and, where possible, book all the affected units on the same day to keep the disruption to a minimum.
My bungalow in Mercier-Est has sliding windows. Can you replace just the thermos?
Yes. The sliding sash holds a sealed unit that we replace with a custom double- or triple-glazed unit, keeping the frame and track. If the frame itself is rotted or warped, we'll tell you during the assessment.

Ready for clear windows again?
Free quote, honest diagnosis and transparent pricing. Call us or request your quote now.
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