Have you just noticed persistent condensation between the panes of your window in Montreal? Or perhaps a freezing draft near your living room in Laval, even with the heating on full blast? Don't panic! Replacing the thermal insulation (the sealed glass unit) in your window is an affordable solution to regain comfort and clarity. At Change of Thermos.com, we help homeowners like you every day in Montreal, Laval, the North Shore, and as far away as Saint-Jérôme and Saint-Sauveur. In this guide, discover average prices in 2025, what influences the cost, and why talking to our professionals is the best first step. Request your free quote now At 450-634-9525 or to info@changementdethermos.com !
How much does it cost? A quick look at prices in 2025
Replacing a window thermos in Greater Montreal costs on average between 150 $ and 450 $ per unitThis price varies depending on the size, type of glass, and other factors detailed below. Here's a quick idea:
- Small window (e.g.: bathroom in Saint-Jérôme): 150 $ to 200 $
- Standard window (e.g.: room in Laval): 200 $ to 300 $
- Large window or patio door (e.g.: salon in Montreal): 300 $ to 450 $
Curious to know the exact cost for your home? Contact the experts at Thermos Change.com for a free quote in 24 hours. Call 450-634-9525, send an email to info@changementdethermos.com, or click on REQUEST A QUOTE on our site.
6 Factors That Influence Price (and How Our Pros Guide You)
The final cost depends on several elements. Professionals Change of Thermos.com evaluate every detail to offer you a fair and transparent price. Here's what matters:
- Window size
A small basement window in Saint-Sauveur costs less than a large patio door in Montreal. Our experts will come to your home to measure and advise you. Call us for a free diagnosis! - The type of glazing
- Double glazing : The standard, economical option.
- Triple glazing : More expensive, but perfect for the harsh winters of the North Shore.
- Low-E glass + argon gas : Reduces your electricity bills while keeping your home comfortable.
- Tempered glass : Mandatory for patio doors or certain low windows.
💡 Talk to a pro at Thermos Change.com : We recommend the ideal glazing for your budget and your home. Request a free quote At 450-634-9525 to start !
- Accessibility
A ground-floor window is faster to replace than a window on the fourth floor of a Montreal condo. Special shapes (arched, circular) require custom-made thermal windows, which can increase the price. Our technicians assess everything on-site to avoid any surprises. - The condition of the frame
In most cases, your frame (PVC, aluminum, wood) remains intact, which reduces costs. Our professionals will check the condition of the frame free of charge during the inspection. Send us an email has info@changementdethermos.com to plan a visit! - The number of thermoses to replace
The more thermoses you replace, the lower the price per unit. For example:- 1 thermos: approximately 300 $
- 5 thermoses: approximately 250 $ each
- 10 thermoses or more: special rate on submission.
Contact a specialist at Thermos Change.com to take advantage of our multi-project discounts. Click on REQUEST A QUOTE or call 450-634-9525.
- The urgency of intervention
A broken window in the middle of winter in Saint-Jérôme? Our professionals will respond quickly and offer a clear price. Call us for a quick and stress-free solution!
Do you want an accurate price without waiting? Talk to our experts at ThermosChange.com today at 450-634-9525 or fill out our form REQUEST A QUOTE.
Thermos or new window? Save up to 70 %
Replacing the thermal insulation is almost always more economical than replacing the entire window. Here's why:
| Option | Average cost | Deadline | Impact |
|---|---|---|---|
| Replacing the thermos | 150 $–450 $ | 1–2 hours per window | No damage, impeccable result |
| New window | 800 $–2000 $ | 1–2 days | Heavy work, finishing required |
With a new thermos, you eliminate fog, restore insulation, and save up to 70 % compared to a new window. Talk to our pros at Thermos Change.com to find out if this is the right solution for you. Click on REQUEST A QUOTE or call 450-634-9525 now!
Examples of costs in Montreal, Laval, and as far as Saint-Sauveur
Here are some concrete examples to help you plan:
- Small bathroom window in Saint-Jérôme : A 2x2 foot foggy window costs about 150 $ to 200 $.
- Bedroom window in Laval : A standard 3x4 foot window costs between 200 $ and 300 $.
- Bay window in Montreal : A large 5x6 foot window or patio door costs 300 $ to 450 $, depending on the glazing.
Do you live in Montreal, Laval, the North Shore, or near Saint-Sauveur? Contact Thermos Change .com for a free inspection and a personalized price. Send an email to info@changementdethermos.com or call 450-634-9525.
Why choose Thermos Change.com?
At the house of Change of Thermos.com, we're more than a window replacement company: we're your neighbors in Montreal, Laval, and the North Shore, dedicated to making your windows look impeccable. Here's why you should trust us:
- Local experts : We know the cold winters of Saint-Jérôme and the challenges of condos in Montreal.
- Fast and clean service : No damage, frame preserved, work guaranteed.
- Free quote within 24 hours : A clear price, without hidden costs.
- Extended coverage : We serve Montreal, Laval, the North Shore, and as far as Saint-Jérôme and Saint-Sauveur.
💡 Pro tip : Replacing multiple thermoses in one visit can reduce your costs and boost your home's energy efficiency. Talk to one of our specialists at Thermos Change.com to optimize your project!
Act now: your free quote awaits
A foggy window or a draft isn't just annoying: it increases your electricity bills and reduces your comfort. In Montreal, replacing a thermos costs between 150 $ and 450 $ per unit, an affordable solution that extends the life of your windows.
Don't let a faulty window ruin your daily life. Contact Thermos Change .com from today for a free quote and personalized advice from our professionals.
📞 Call us At 450-634-9525
📧 Write to us has info@changementdethermos.com
👉 Click here For REQUEST A QUOTE online
Change of Thermos.com – Your local expert for clear windows and unbeatable service in Montreal, Laval, on the North Shore, and as far away as Saint-Jérôme and Saint-Sauveur.
