Window Replacement & Installation in London, ON
What customers have said
Love my new windows! Quick installation done by experts.
Emily
London, ON · May 2026
Old windows do more than look tired — they leak heat, let in noise, and drive up your energy bills every winter. We install high-performance replacement windows built for Ontario's climate, from standard double-hung to custom shapes. Every installation includes proper insulation, flashing, and interior trim so the job is done right, not just done fast.
What's included
- Double-pane low-E glass standard, with triple-pane available as an upgrade
- Argon gas fill for improved insulation
- Professional measurement and custom sizing
- Full interior and exterior trim finishing
- Proper flashing and weatherproofing
- Lifetime manufacturer warranty on most products
- Workmanship guarantee on installation
- May qualify for Canada Greener Homes Grant rebates
- Reduced energy costs — often noticeable within the first season
Windows We Install
A range of windows options to suit your home and budget.
Casement Windows
Side-hinged windows that crank open for full ventilation and a tight seal when closed. One of the most energy-efficient styles available.
Single-Hung Windows
Traditional design with a fixed upper sash and an operable lower sash. Cost-effective and reliable, with a classic look that suits most homes.
Double-Hung Windows
Classic top-and-bottom sliding sash design. Both sashes tilt inward for easy cleaning from inside your home.
Bay & Bow Windows
Projecting window assemblies that add depth, light, and architectural character to any room.
Slider Windows
Horizontal sliding windows ideal for wider openings. Low-profile hardware and smooth glide operation.
Awning Windows
Top-hinged windows that open outward, allowing ventilation even during light rain. Great for basements and bathrooms.
Custom & Specialty Shapes
Round tops, geometric shapes, and architectural windows built to match your home's unique character.
Picture Windows
Fixed, non-opening windows for maximum light and unobstructed views. Often paired with operable windows on either side.
Basement & Egress Windows
Code-compliant egress windows for finished basements. Proper sizing, well installation, and permit coordination included.
What happens when you call
The same four steps on every job, whether it's one door or the whole exterior.
- 1
Call, or send the form
We ask a few questions about the house and the job. If it's something we do, we book a visit.
- 2
The visit
We measure, look at samples with you, and talk through the options that make sense for your house.
- 3
A written proposal
A fixed price with the scope spelled out, usually within a couple of days. Read it on your own time. If you want to go ahead, you tell us. We don't chase.
- 4
The work, and a check-in after
We schedule the install, do the work, and walk it with you at the end. We come back in the first year to check on it.
Common Windows Questions
What we install
The manufacturers we order from most. Ask us why we picked them over the alternatives.
- VDK Windows & Doors
- Novatech Doors
- Westlake Royal Building Products
- Northstar Windows & Doors
- James Hardie
- Marvin Windows & Doors
Let's talk about your project.
Honest quote in writing. No pressure, no franchise upsell.
Tell Me About Your Project
I'll come out, take measurements, and write you an honest quote. No pressure, no franchise upsell.