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Home Window Replacement Companies in London

Don’t know how to begin? See our Hiring Guide for more information

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Which of the following best matches your project?

  • Window Replacement

    Window Replacement

  • Window Repair

    Window Repair

  • Custom Windows

    Custom Windows

  • Window Installation

    Window Installation

  • Egress Windows

    Egress Windows

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London / 50 mi
Window Contractors
1 – 15 of 37 professionals
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37 Professionals

Featured Reviews for Home Window Replacement Companies in London

Douglas Window & Door Inc.
Home Window Replacement Companies in London
Average rating: 5 out of 5 starsMay 28, 2020
“I am SO pleased with the design that Douglas Window & Doors did, when replacing our front entrance doors and also our basement walkout doors! I would highly recommend them! They were friendly, courteous, and perfectionists...We love our doors! Thank you! Sue V”
GoldStar Window London
Home Window Replacement Companies in London
Average rating: 5 out of 5 starsJanuary 2, 2014
“I limited my search to GoldStar Window because they have superior product, highly rated by online reviews. What I really liked about their proposal was that it was all-inclusive of everything. They required the smallest deposit by far and the lead time to have the windows made was the shortest (3 weeks). From a risk perspective, this made me very happy. Due to some weather setbacks,they were able to start the job 4 weeks later. Putting in 35 windows and capping 28 of them is a huge project. The 6-man crew was able to complete the job in 3 days. It was clear GoldStar installers took pride in their work and did a meticulous job of installation and cleanup. I have a brick house contrasted with the pristine white of the capped windows makes the house look brand new. I'll never have to worry about painting the window frames ever again too. GoldStar team was on-site almost the whole time when the work was being done. They were helpful in every regard associated with the window installation. They offered to install the new shades to the windows which I happily took them up on. I had storm windows in my cellar from the last time the storm windows were replaced 25 years ago. They don't accept such trash in my town. GoldStar Window was more than happy to cart that stuff away for me. I didn't need to lift a finger myself. Highly recommend this company.”
DJM Brothers
Home Window Replacement Companies in London
Average rating: 5 out of 5 starsNovember 15, 2023
“The installation was quick. The workers were very professional and polite. They took care to clean up. I would highly recommend them to my friends and family. Thank you for great job”
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Replacement Window Contractor FAQs
  • Age exceeds 20 years
  • Visible damage or decay
  • Difficulty opening/closing
  • Condensation between panes
  • Increasing energy bills
  • Double-pane or triple-pane glass
  • Low-E coatings
  • Gas-filled windows
  • Energy Star certified options
  • Frame materials with high insulation values
  • Window units and materials
  • Removal of old windows
  • Installation labor
  • Cleanup and disposal
  • Warranty coverage
  • Standard window: 30-60 minutes per unit
  • Custom windows: 1-2 hours per unit
  • Whole house: 2-3 days average
  • Weather considerations
  • Regular cleaning
  • Hardware lubrication
  • Weatherstripping inspection
  • Seal checks
  • Frame examination
Why Hire Window Contractors on Houzz?
37Local Pros on Houzz Who Serve London, ON
15,990Local Projects on Houzz by Window Contractors
1M+Total Number of Reviews Left by Homeowners
Essential to your London, ON home's beauty, function and comfort, windows are a critical component that demands careful consideration. When windows fail to perform properly, issues like leaks and drafts can lead to costly repairs and increased energy bills. A trusted London, ON window professional can guide you through selection and installation, ensuring a lasting investment that enhances your home's value and efficiency.

Whether you're building new, remodeling, or replacing specific windows, local window installation professionals will help you select options that match your needs, architectural style and budget. They can advise on:
  • Window styles and materials best suited for London, ON's climate
  • Energy-efficient options that can reduce utility costs
  • Custom designs for unique spaces
  • Coordinating doors with windows, including sliding doors and French doors


Questions to ask a prospective London, ON window contractor:


  • How long have you been in window installation and repair service?
  • How many projects like mine have you completed in London, ON?
  • May I see examples of previous projects and references?
  • Who will be working on the project? Are the workers employees or subcontractors?
  • What training, licensing, and certifications do you have?
  • What local building codes apply to window installation in London, ON, and will you handle the permit process?
  • How do you charge, and what does your quote include (materials, labor, cleanup, disposal)?
  • What type of warranty do you offer, and what's specifically covered?
  • When can this job get done, and how do you handle weather delays?
  • What happens if costs exceed the budget? How do you handle changes in materials or labor pricing?