London Ontario home with new windows

Service Area

Windows & Doors in London

Window, door and masonry installation across London — Old North heritage homes to new subdivisions.

London coverage and scheduling

Every London neighbourhood

Old North, Byron, Masonville, Westmount and Hyde Park — we install across all of London.

Fast scheduling

Most London projects are quoted within the week. Installs typically begin within 4–6 weeks.

Local references

Hundreds of completed London projects. Ask for references in your neighbourhood when you request your estimate.

London Projects

Built for London homes — old and new

London's Old North holds early 1900s brick mansions with massive original window openings; Byron, Masonville and Westmount are 1970s–80s subdivision; Hyde Park is newer. Humid summers and cold winters both stress glazing systems here. Common London projects include casement window, tilt & turn, and bay window replacements, along with steel and fiberglass entry doors, sliding patio doors, full masonry work, code-compliant egress windows, and London permit assistance. Flexible financing is available, or you can request a free quote any time. See what London-area homeowners say about working with us.

Full-home triple-pane window replacements across London
Custom steel and fiberglass entry doors
Egress conversions for legal basement apartments
Brick repair and new openings for window upgrades
Sliding patio doors for backyard renovations
Zebra and roller blinds installed throughout the home

Our Difference

Built for Ontario Homes

Trust Build Windows and Doors focuses on long-term performance, energy efficiency, and professional installation. Every project is measured, manufactured, and installed to meet the unique requirements of Ontario homes and weather conditions.

Built for Ontario Homes

Trust Build focuses on long-term performance, energy efficiency, and professional installation. Every project is measured, manufactured, and installed to meet the unique requirements of Ontario homes and weather conditions.

Premium Components

We use quality products and components including German-engineered hardware, high-performance glass systems, advanced weather sealing, and energy-efficient window and door designs built for durability and comfort.

Professional Installation

Proper installation is just as important as the product itself. Our experienced installation teams follow proven methods designed to improve energy performance, reduce drafts, and help protect your investment.

Energy Efficiency

Modern windows and doors can improve comfort throughout the year by helping reduce heat loss in winter, limiting solar heat gain in summer, and supporting lower energy consumption.

Warranty Protection

Our products are backed by comprehensive warranty coverage, giving homeowners confidence in the performance and longevity of their investment.

Trusted Across Ontario

From single-window replacements to complete home exterior upgrades, homeowners throughout Ontario trust our team for reliable service, quality workmanship, and professional results.

London Neighbourhoods

Window and door installation in every London neighbourhood

Visit a dedicated page for your area to see common projects, local references and what to expect.

FAQ

Frequently Asked Questions

Yes. London's Building Division uses an online portal with a 10-business-day review; Old North heritage files go through the London Advisory Committee on Heritage first, adding 2–3 weeks. We sequence the schedule around that review so install doesn't get pushed twice.
Yes — large original openings, true divided-light and historically accurate brick mould are routine work for us. We handle masonry repair where needed.
Yes — original aluminum sliders are universally past service life. Modern triple-pane noticeably cuts winter drafts and heating bills.
Warm-edge dual-seal spacers, proper exterior caulking and breathable interior trim all matter — we spec accordingly.
Around 7–8 weeks for stock and mid-range orders. Old North mansion projects with custom radius transoms and true divided-light run 10–12 weeks because each unit is templated and built individually in the shop.

Free Quote

Get Your Free London Estimate

Tell us about your project. We'll be in touch within one business day to discuss your needs and provide a detailed estimate.

  • Detailed project assessment
  • Written itemized quotation
  • Product and installation recommendations
  • Financing options available

Get Your Free, No-Obligation Quote

Tell us a little about your project and we'll get back to you. Takes under a minute — no pressure, no pushy calls.

By requesting a quote you agree to be contacted about your request. We never share your info or send spam.

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