3 Best Windows & Door Companies In Ottawa
Expert-recommended Top 3 Windows & Doors companies in Ottawa, ON. Every company below is hand-picked and verified through our 30-point review of reputation, customer reviews, service, product quality, and local presence. You deserve only the best!
Mullions is an independent directory and is not affiliated with or endorsed by the City of Ottawa.
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FENHAB Solutions Inc.
- Vinyl (PVC) Windows
- Aluminum Windows
- Casement Windows
- Awning Windows
- Entry Doors
- Patio Doors
- Garage Doors
- Siding
- Window Installation
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Kalel Windows + Doors
- Windows
- Entry Doors
- Patio Doors
- Custom Windows
- Home Improvement
- Design Consultation
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Window Mart Ottawa
- Vinyl Windows
- Casement Windows
- Awning Windows
- Slider Windows
- Entry Doors
- Patio Doors
- Window & Door Installation
Windows & Doors in Ottawa: A Local Buyer's Guide
Ottawa homeowners deal with some of the harshest winters of any major Canadian city, so windows and doors here work hard. The city's housing runs from century-old brick homes in Centretown, the Glebe, and New Edinburgh to fast-growing suburban builds in Kanata, Barrhaven, and Orléans — and the right window for a heritage downtown home rarely suits a 1990s Kanata two-storey. Local expertise matters.
🌡️ Climate & what to buy
Ottawa regularly hits -25°C to -30°C wind-chills in January and humid 30°C+ summers, one of the widest temperature swings in the country. Triple-pane, low-E, argon- or krypton-filled ENERGY STAR windows and well-insulated fibreglass or steel doors deliver the biggest comfort and heating-bill gains. Air-tight installation matters as much as the glass — most winter drafts come from poor sealing.
📋 Permits & bylaws
In Ottawa, like-for-like window and door replacement generally does not require a building permit. A permit IS typically needed if you enlarge an opening, add a new opening, or change a load-bearing wall. Homes in a Heritage Conservation District (parts of the Glebe, New Edinburgh, Rockcliffe Park, and others) may need Heritage approval before altering street-facing windows. Always confirm with the City of Ottawa before work begins.
💰 Rebates & incentives
Ottawa homeowners can often combine federal Canada Greener Homes programs with Enbridge Gas Home Efficiency Rebate Plus offers for ENERGY STAR windows and doors. Incentive programs change frequently — ask your installer which current rebates your project qualifies for before you sign.
📅 Best time to install
Book spring or early-fall installations. Mild temperatures let sealants and expanding foam cure properly, and installers have shorter wait times than during the summer rush or a deep-freeze January.
Serving neighbourhoods across Ottawa: Centretown & The Glebe · Kanata · Orléans · Barrhaven · Nepean · New Edinburgh & Rockcliffe
Why Hire a Local Window & Door Expert in Ottawa?
Working with a local professional in Ottawa means faster service, climate-right materials, and someone who knows Ontario building codes and stands behind the work.
- ✅ Faster response times — local crews schedule estimates and installs quicker than out-of-town providers.
- 🌡️ Climate-specific advice — they know which materials perform best in Ottawa.
- 📋 Permits & bylaws — avoid delays or fines with a contractor who knows the local rules.
- 🔧 Reliable aftercare — if an issue arises, your contractor is a call away, not in another city.
- ⭐ Trusted reputation — local businesses live and die by word-of-mouth and reviews.
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Common Window & Door Services in Ottawa
Local pros in Ottawa handle everything from energy-efficient upgrades to full entryway transformations. The most-requested services:
Window Replacement & Installation
Upgrade old or damaged windows with energy-efficient double-pane, triple-pane, or low-E glass units.
Door Replacement & Installation
Improve curb appeal and security with quality front doors, patio sliders, and custom entry systems.
Sliding & French Patio Doors
Add functionality and natural light with space-saving sliding doors or elegant French doors.
Custom Window Solutions
Bay windows, bow windows, or oversized picture windows for unique architectural needs.
Energy-Efficient Upgrades
ENERGY STAR® certified windows and insulated doors built for Ottawa's climate.
Window & Door Repairs
Fix cracked frames, foggy glass, faulty locks, and weather stripping — without full replacement.
Retrofit & Full-Frame Installation
Choose retrofit (keeping the existing frame) or full-frame installation for a complete upgrade.
Condensation & Draft Solutions
Resolve air leaks, poor sealing, and moisture build-up for better indoor comfort.
Average Cost of Windows & Doors in Ottawa, Ontario
Costs vary by material, size, style, and installation method. Typical Ottawa price ranges:
| Service Type | Average Cost (Installed) |
|---|---|
| Standard Vinyl Window (per unit) | $500 – $950 |
| Triple-Pane Window (per unit) | $750 – $1,300 |
| Bay or Bow Window | $2,200 – $4,200+ |
| Entry Steel Door | $1,100 – $1,900 |
| Fiberglass Entry Door | $1,600 – $2,600 |
| Sliding Patio Door | $1,300 – $2,900 |
| French Door (Double) | $1,900 – $3,600 |
Frequently Asked Questions
How does Mullions choose the top 3 companies in Ottawa?
Each business is evaluated against our 30-point review standard — reputation, customer reviews, licensing, online presence, and business integrity — before being featured.
Is it free to request quotes in Ottawa?
Yes. Submitting the quote form is completely free for homeowners, and your request goes to all featured companies in Ottawa at once.
Do I need a permit to replace windows or doors in Ottawa?
In Ottawa, like-for-like window and door replacement generally does not require a building permit. A permit IS typically needed if you enlarge an opening, add a new opening, or change a load-bearing wall. Homes in a Heritage Conservation District (parts of the Glebe, New Edinburgh, Rockcliffe Park, and others) may need Heritage approval before altering street-facing windows. Always confirm with the City of Ottawa before work begins.
What does it cost to replace windows in Ottawa?
Most windows run $450–$1,200 per unit installed depending on material and glass; a full-home project is typically $8,000–$18,000. See the price table below.
How soon will companies respond?
Most featured local companies respond within one business day.