Caulking and Weatherproofing in Brossard
Worn or poorly done caulking lets cold air in and heated air out, driving up the heating bill and sometimes letting water infiltrate. Our partner contractors in Brossard reseal windows, doors, and exterior joints with materials suited to Quebec's climate.
Signs to watch for
Cracked or peeling caulking, noticeable draft near windows or doors, rising heating bill, signs of water infiltration around frames, caulking never redone since construction.
How much does it cost?
Complete guide
Why caulking wears out faster in Quebec
Quebec's frequent freeze-thaw cycles put exterior caulking through far more stress than in milder climates — the material contracts in extreme cold and expands during thaws, which speeds up cracking and peeling. Good-quality caulking typically lasts 5-10 years before needing to be redone, but an entry-level or poorly applied product can start failing after just 2-3 years.
The areas most commonly caulked
- Around windows and doors — the most common spot for heat loss and infiltration.
- Joints between exterior siding and frames — often overlooked but critical for a tight seal.
- Roof flashing and joints — to prevent water infiltration.
- Foundations and door thresholds — to block cold air seeping in from below.
How the job works
- Inspection — a contractor identifies every spot where caulking is cracked, peeling, or missing.
- Removing old caulking — full surface cleaning before the new application.
- Applying new caulking — choosing the right product for each surface (silicone, acrylic latex, polyurethane).
- Verification — a final check to confirm a complete seal.
What influences the price
| Factor | Impact on price |
|---|---|
| Number of windows/doors to caulk | More surfaces increases labor time |
| Accessibility (height, floors) | Working at height needs extra equipment |
| Condition of existing caulking | Difficult removal of old caulking adds time |
| Material used | Some premium products cost more but last longer |
What's different in Brossard
Quebec's climate, with its extreme swings between summer and winter, calls for caulking products specifically formulated to stay flexible in severe cold. Our partner contractors in Brossard use materials suited to these conditions rather than generic products.
Myths vs. facts
Myth: caulking is just cosmetic. Fact: failing caulking can cause significant heat loss and, worse, water infiltration that damages the structure over time.
Myth: any tube of caulk from the store will do. Fact: the right product depends on the surface and exposure — poorly chosen exterior caulking can fail in a single season.
Frequently asked questions
How often should caulking be redone?+
Generally every 5-10 years, depending on the quality of the original product and weather exposure in Brossard.
How long does caulking a whole house take?+
Usually half a day to a full day in Brossard, depending on the number of windows and doors.
Can I caulk myself to save money?+
For small, easily accessible spots, yes. But work at height or around roof flashing is safer and more durable when done by a professional.
Can caulking really lower my heating bill?+
Yes — air leaking through poorly sealed joints is one of the main sources of heat loss in a home, especially around older windows.
What's the difference between silicone and latex caulking?+
Silicone is more durable and handles moisture better, but costs more; acrylic latex is easier to paint and works well for interior surfaces.
Do I need a permit?+
No, caulking is routine maintenance that doesn't require a municipal permit in Brossard.