Window Replacement & Doors in Ottawa

This guide compares 5 window and door companies serving Ottawa. The featured shortlist includes Canadian Comfort Windows & Doors, Advantage Enterprises Windows & Doors (AE Windows), and Centennial Glass, each a real, currently-operating Ottawa business selected for its local track record and public reviews.

The best window replacement companies in Ottawa treat windows and doors as an energy decision, not just a look, in a city with a heating season this long. They install units rated for our winters, seal and insulate the opening properly, and handle repairs and glass replacement too. The companies below cover window replacement, repair, and installation, plus entry and patio doors, across the city. Each is a real Ottawa business with public reviews you can read, so you can compare product ratings, install quality, and warranty terms before you replace what should last decades.

Typical Ottawa cost: $700 to $1,500 per window installed; doors higher5 companies compared5 rated on Google

Also covers: Window replacement · Window repair · Window installation · Entry & patio doors · Glass replacement

Featured professionals

Windows & Doors worth considering

A focused Ottawa shortlist. Partners are labeled and shown first; all other placement follows real ratings.

Partners are always labeled. Sorting changes the order you see; placement cannot be bought.

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Also serving Ottawa

Buyer guide

Hiring a window and door company in Ottawa

What separates a great window and door company from a cheap quote, and the questions worth asking before you sign.

  • The install matters as much as the window

    A great window installed poorly still leaks air. Ask how they insulate and seal around the opening, and whether they replace rotten framing they find.

  • Check the energy rating for our climate

    Look for a low U-factor and an ENERGY STAR rating suited to Ottawa's climate zone. A good installer explains the rating rather than just selling a brand.

  • Ask about current rebates

    Energy-efficiency rebates change year to year. Ask which current federal or provincial programs your project qualifies for, and get the qualifying specs in writing.

  • Understand the warranty split

    There is a product warranty and an installation warranty. Confirm the length of each and who you call if a seal fails or a draft appears later.

Common questions

Windows & Doors in Ottawa, answered

Are there rebates for new windows in Ottawa?
Energy-efficiency rebates change year to year. Ask the installer which current federal or provincial programs your project qualifies for, and confirm the window's energy rating.
How much do replacement windows cost in Ottawa?
Installed replacement windows commonly run 700 to 1,500 dollars each depending on size, type, and frame material, with entry doors higher. Whole-home projects are quoted as a package; get it itemized.
When is the best time to replace windows in Ottawa?
Spring through fall is ideal, but windows can be replaced in winter one at a time so the house is never open long. Ask how the crew limits heat loss during a cold-weather install.
How long do new windows last?
Quality vinyl windows last 20 to 30 years in Ottawa's climate. A failed seal showing as fog between the panes is the usual first sign of age; check whether it is covered.
Should I replace all my windows at once?
Doing them together often earns a better package price and a consistent look, but phasing by the worst windows first is fine if budget is tight. Ask for both quotes.

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