London Windows & Doors Replacement & Installation

Are you looking for a reliable windows and doors company in London to provide you with top of the line windows and doors as well as most trusted replacement & installation services? If so, Reliant Windows & Doors is the perfect match for you!

See Our Product Get A Free Quote

Satisfaction Guarantee For Our
London Windows & London Doors Services

Once we understand your needs, we will continue to communicate with you during all phases of the project keeping you informed of job progress overall and on a day-to-day basis. We make every effort to stick to the plan, but the best-laid plans can be affected by factors outside of our control.

We do what we can to make adjustments. We stick with every job until it’s done. After completion, we’ll do a walk-through with you to ensure your satisfaction. We want you to feel that we were the solution to your problem – never the problem.

Our London Windows & London Doors Products



Single Slider

Double Slider


Single Hung

Double Hung

Shaped Windows


Our Step by Step Process

Step 1: Free Consultation & Measurement

Our Reliant Windows & Doors rep will advice regarding which window types will be best for your home and family. For example, if you have young children, you will not want to install windows that are too easy for them to open and fall out of. If you live in an area that has a lot of rain and snowfall, we may recommend awning windows that will still allow airflow during inclement weather. After picking the types of windows you want, our rep will take down the measurements as well.

Step 2: Installation Assessment
Step 3: Preparation

Once the quote is accepted, our Reliant Windows & Doors installation team will schedule a date and time to remove and install the new windows. Before the installation team's arrival, please remove any window coverings and furniture so that the installation team has plenty of room to work.

Step 4: Removal & Installation

Our Reliant Windows & Doors installation team will arrive on time with the products that you've ordered. We will then remove the old window and insert the new one. If you have time on the day, feel free to stick around and watch our installation team does their magic.

Step 5: Project Walkthrough

Once the installation is completed, our installation team will conduct a walkthrough with you to make sure you ae happy with the work done!

Why People Choose Us to Replace & Install Their
London Windows & London Doors

149322 copy

Honest & Fair Prices

We care about your budget and give fair and reasonable rates to our high quality services and specialist services. Working with us can ensure you the very best mix of price and value on your project.
1611179 copy

Hight Quality Products

We are passionate about what we do and believe we offer the very highest quality windows and doors that brings satisfaction to thousands of our happy customers. All our products are made in Canada.
681662 copy

Precise Installation

Professional installation is a huge factor for success of your renovation project. All our windows and doors are installed by the industry strongest, most capable and most experienced teams servicing our customers.
first-class-service-1 (1)

First Class Service

Getting the right advise and excellent service makes all the difference. We guide our customers through each step of the project. Our lifetime warranty is our pledge to you that we will stand behind our products.

What People Say About Our
London Windows & London Doors Services

  • Chace Goulding
    My experience with Reliant Windows was great! Alex D was professional, knowledgeable and very kind. The installation went well and got it completed within one day (4 awning windows, 2 picture windows, 4 casement windows and 1 tilt & turn door). The price was also very competitive. Highly recommended this London window replacement company! null
    Chace Goulding
    A Satisfied Client with Our London Window Replacement & Window Installation Services
  • Allison Chan
    Installed some bay windows in our living room as a father day's gift. These new windows totally give a whole new feel to the room. It’s so much better when you’re letting the light flow in. Thanks, Reliant Windows & Doors, the windows look amazing and wish I could install more. Would recommend to anyone, they got it done in one day and I swear I didn’t even notice that they’d left since they were so quiet and tidy. If you’re looking to do a home renovation, do it here. 5 stars! Great product and great service! null
    Allison Chan
    A Satisfied Client with Our London Window Replacement & Window Installation Services
  • Mary B.
    I had a wonderful experience with Alex. He was such a big help with facilitating my window replacement project last month. He provided professional service and was very knowledgeable and friendly. Thank you! The bow windows look great! null
    Mary B.
    A Satisfied Client with Our London Window Replacement & Window Installation Services
  • Clara E.
    Great work done in our house, we replaced all the windows and the garden door. Reliant Windows met our expectations. Justin, the sales rep was very helpful and professional, and the installation crew did a great job. We love our new windows, especially the beautiful bay windows! Our home got a facelift. Thanks again for the great work! We did windows second time with Reliant Windows. Happy again!!! null
    Clara E.
    A Satisfied Client with Our London Window Replacement & Window Installation Services
  • Billy K.
    The whole process from the beginning with the sales rep Tony D. to the administration staff to the window installation crew was very smooth. I love my new single slider windows, my house is so much more comfortable and bright (bright like my future LOL). I would recommend Reliant Windows & Doors to all my family and friends. null
    Billy K.
    A Satisfied Client with Our London Window Replacement & Window Installation Services
  • Luther D.
    Their casement windows are really nice and energy-efficient, from what I understand. It is Energy Star rated and that was good enough for me. Their window installers were very friendly and finished the job relatively fast! null
    Luther D.
    A Satisfied Client with Our London Window Replacement & Window Installation Services
  • Kay N.
    Very satisfied with the service and installation of our windows and doors by Reliant Windows & Doors throughout our house. We have seen a great difference in the temperature as there are no more drafts and there is no need to mention the hydro bills!!! The picture windows are easy to clean no more straining to take out panes to clean. I would like to thank Leon with his professionalism and great advice in choosing the right windows and doors for us and also Ian and Simon for the hard work they put into a job well done. I would definitely recommend Reliant Windows & Doors to all our friends and family. Thank you once again! null
    Kay N.
    A Satisfied Client with Our London Window Replacement & Window Installation Services
  • Whitney O.
    I had a steel entry door and sidelight back door and screen door installed by Alex & his team they done a great job and were so friendly and the doors are beautiful thanks Alex. I highly recommend this windows company in London! null
    Whitney O.
    A Satisfied Client with Our London Window Replacement & Window Installation Services
  • Barney Kelly
    We are very pleased with the project. The self-cleaning glass on the awning windows is an amazing feature been added. Service is great, installers team polite and very professional, the product is very unique- We got 5 estimates and what Reliant Windows & Doors is offering in terms of technology is absolutely the best. Thanks to Alex and Justin for an amazing performance. We are going to recommend this London windows company to friends and family. null
    Barney Kelly
    A Satisfied Client with Our London Window Replacement & Window Installation Services
  • Gigi Lee
    I just had 7 windows installed (5 awning windows and 2 bow windows) and couldn't be happier. It was an excellent experience working with Reliant Windows from start to finish. The project manager, Alex, came to my home and showed me all the options available to me. He helped with the window selection without imposing his own preferences. I appreciated that since that was not always the case with some of the other companies I requested quotes from. I also appreciated his insightful and honest advice. The installation staff were always courteous and accommodating. They worked very hard to arrange an installation time that worked with my schedule, as well as unpredictable weather conditions. Overall, everyone at Reliant Windows was prompt and meticulous and went above and beyond my expectations. null
    Gigi Lee
    A Satisfied Client with Our London Window Replacement & Window Installation Services

Our Strong Track Record for Replacing & Installing
London Windows & London Doors

2400441 copy

Quality Installations

1680633 copy

Customer Satisfaction

1572223 copy

Happy Customers

753623 copy

Years of Experience

See Some Of Our Past London Windows & London Doors Work

Get A Free Quote for Your
London Windows & London Doors Needs

Once you filled out the form, one of our windows & doors consultant will reach out and help you with a quote as well as answering any questions you have about your project.

    Get A Quote