Custom-built, energy-efficient windows installed by our own crew — never subcontractors. Backed by a 25-year window warranty and 10-year labour guarantee.
We'll always tell you the truth — even if that means recommending a less expensive option. Here's how we think about repair vs. replacement.
Fog-Out Repair — our sealed unit replacement service — starts at $250–$400 and comes with a 10-year money-back warranty.
Learn about Fog-Out RepairAll replacements come with a 25-year window warranty and 10-year labour guarantee.
Not sure which option is right for you? Call us — we'll give you a straight answer, no pressure.
Not sure if it's time? Here are the most common signs Calgary homeowners notice before calling us.
Feeling cold air near windows even when they're closed? Failing seals and worn weatherstripping are letting in cold Calgary air and driving up your heating bill.
Moisture between panes means the seal has failed. In most cases, foggy window repair (defogging) is the first option — if the frame is still in good condition. Sealed unit replacement or full replacement may be needed if the glass is etched or the frame is compromised.
Windows that stick, won't latch, or are difficult to operate are a safety hazard and a sign that frames have warped or hardware has failed beyond repair.
Old single or double-pane windows can account for 25–30% of your home's heat loss. Upgrading to triple pane with Low-E glass can cut that significantly.
Interior condensation on cold days often signals poor insulation. Exterior condensation is normal — but condensation between panes means the seal has broken.
Old windows can date a home's exterior and reduce resale value. New windows are one of the highest-ROI renovations you can make — improving both looks and energy performance.
Every window is custom-built to fit your home's exact openings. We'll help you choose the right frame material for your budget, style, and performance goals.

Calgary's most popular choice for good reason. PVC windows resist moisture, rot, and warping — and require virtually zero maintenance. They deliver excellent energy efficiency at the most accessible price point.

PVC interior for energy efficiency and easy cleaning, with aluminum cladding on the exterior for superior durability and a sharp, modern look. The best of both worlds for homeowners who want performance and curb appeal.

The warmth and character of natural wood on the interior, with the durability of aluminum or fiberglass cladding on the exterior. A timeless choice for heritage homes and high-end renovations.

Available exclusively through NS Windows — one of Canada's leading window manufacturers. Factory-applied vinyl wrap in 9 exterior colours and 8 interior finishes, including wood-grain options. UV-stable, never peels or fades, zero repainting required.
Available Exterior Colours
Plus 8 interior finishes including Kolonial-Oak, Walnut, Light Oak, and Paintable-Stainable.
Hover over a swatch to see the colour name.
Available in casement, awning, single-hung, double-hung, picture, bay, bow, and slider styles — all custom-built to fit.
The glass package matters as much as the frame. Here's what goes into a high-performance window — and why it matters for Calgary winters.
See the Difference

Microscopically thin metallic coating that reflects heat back into your home in winter and blocks solar heat gain in summer. Strongly recommended for Calgary's climate.
Inert argon gas between panes is denser than air, reducing heat transfer and improving the window's insulating value (R-value) by up to 30%.
Triple pane with laminated glass dramatically reduces outside noise — traffic, wind, and neighbourhood sounds. Ideal for homes near busy roads.
All our replacement windows meet or exceed Energy Star requirements for Canada's Northern climate zone — the most demanding rating available.
Go-Green Windows & Doors is a family-owned Calgary company. We started in the window business in 2004 and have built our reputation on honest advice, quality installations, and warranties that actually mean something.

"Honest, professional, and the installation was flawless." — Calgary homeowner
We believe in upfront pricing. Here's a realistic range for Calgary homeowners — and options to make it more affordable.
Installed prices — includes labour, materials, and disposal
Financing options — including the Canada Greener Homes Loan (CEIP) — may be available to qualifying homeowners for energy-efficiency upgrades like window replacement. The CEIP offers interest-free financing for eligible applicants. We'll walk you through what's currently available and whether you qualify at your free quote appointment.
Eligibility requirements apply and program availability may vary. We'll help you understand your options during your free quote — no obligation.
Every quote is free, no-obligation, and includes a detailed breakdown — no vague estimates.
Every photo is a real Go-Green installation. Click any image to enlarge.

Hybrid Window Install — Bowness, Calgary NW

BrightPath PVC Install — Falconridge, Calgary

Sealed Unit Replacement — Lake McKenzie, Calgary

Vinyl Wrap Interior — Black Frame Finish

Our Team on the Job — High-Rise Install, Calgary
BrightPath Okotoks — Commercial
Our no-pressure team will assess your windows and provide a clear, detailed replacement quote — with no obligation.
Mon–Sat 8am–6pm
Answers to the questions Calgary homeowners ask most before booking a quote.
Go-Green Windows & Doors provides professional window replacement in Calgary, Airdrie, Chestermere, Okotoks, and Cochrane. We specialize in triple pane windows, PVC vinyl windows, hybrid windows, wood-clad windows, and NS Series 1000 vinyl wrap windows — all custom-built and installed by our own in-house team. Our window replacement services are backed by a 25-year window warranty and 10-year labour guarantee. All windows include Low-E glass coating and argon gas fill for maximum energy efficiency in Calgary's climate. We also offer foggy window repair and sealed unit replacement when full replacement is not necessary. Contact us for a free, no-obligation quote on energy-efficient windows in Calgary.