226-400-8818

High Quality, Energy Efficient Replacement Windows

Windows

from

$299

Patio
Doors

from

$999

0%
Financing

for

3 months*

We match all written estimates and give up to 10% off lowest quoted price

Replacement Windows and Doors GTA

Factory Direct Pricing

Our windows, entry doors and patio doors are manufactured in Canada using state of the art process, ensuring each door and window meets or exceeds Ontario building code.

Windows

Our windows are built from virgin vinyl with multi-chambered sections, ensuring optimal energy efficiency. We offer dual and triple glazing, with low-e glass coating, minimizing UV and infrared light while preserving the temperature inside.

Patio Doors

We offer sliding and french patio doors. Upgrade your patio doors to new model that will slide effortlessly and provide a much better energy efficiency than older sliding patio doors. Our vinyl patio doors will give you years of maintenance free performance.

Entry Doors

We offer steel and fiberglass entry doors. Steel doors are stylish and affordable, while being strong and tough. Fiberglass doors on the other hand can emulate any exotic wood look, while being as strong as steel, but at a slightly higher cost.

 

 

another window replacement project by ON Star Windows & Doors in suburban Ontario

We have installed hundreds of windows and doors over the last few years, with the goal of providing the greatest customer experience. Our clients’ referrals and repeat business are the most valuable recognition we strive to earn.

Whether you need new windows for your home or are looking for high-quality replacement options, look no further than On Star Windows and Doors. Our team of skilled professionals specializes in installing top-quality replacement windows. We are committed to delivering exceptional service, ensuring that every window and door we install enhances your home’s appearance, energy efficiency, and security.

Vinyl, Casement, and Awning Windows

We install products that are laboratory-tested and certified according to Canadian Standards. Our selection includes a variety of styles and sizes to suit your needs, including awning, casement, sliding, bay, bow, single-hung, and double-hung windows. Each option is designed to improve your home’s aesthetics while maximizing energy efficiency.

Whether you need to replace a single window or update your home with modern, energy-efficient options, we have a wide selection of high-quality vinyl replacement windows and doors. Custom design options are also available to ensure the perfect fit for your home.

Quality Window Replacement Services

As windows age, they become drafty, difficult to operate, and may even develop mold. Old or damaged windows can compromise both security and energy efficiency. Replacing your windows is a smart investment that can reduce heating and cooling costs while enhancing the comfort and value of your home.

At On Star Windows & Doors, we install energy-efficient windows in a variety of styles and finishes. Our products are designed to offer superior insulation and long-lasting durability. Whether you’re looking for sleek modern designs or classic styles, we have the perfect windows for your space.

Trusted Window and Door Experts

On Star Windows & Doors is a well-established company known for providing premium window products installed by skilled professionals. We offer dual-glazed and triple-glazed windows in a range of colours and grill configurations to suit your preferences. Our competitive pricing and commitment to quality make us a top choice for homeowners looking for durable, stylish, and energy-efficient replacement windows.

  • Free On-Site Estimate

  • Professional Installation

  • Warranty & Repairs

Average Window Prices

Window Prices by Window Type

Window Type Average Price Min Average Price Max
Awning Windows $575 $1330
Casement Windows $575 $1330
Fixed Windows $550 $1250
Hung Windows $575 $1330
Slider Windows $575 $1330

Window Prices by Window Location

Location Average Price Min Average Price Max
Living Room $1860 $2920
Kitchen $590 $1260
Bedroom $620 $1310
Basement $380 $690
Bay/Bow $2950 $4500

Props from
Satisfied Customers

ON Star Windows & Doors
ON Star Windows & Doors
4.5
Based on 79 reviews
See all reviewsWrite a review
On Star Windows Doors
On Star Windows Doors
5.0
Based on 2 reviews
See all reviewsWrite a review
I recently had all my windows in my house replaced with On Star Windows. After 5 quotes from different companies, I chose On Star as not only were they the best price but Vlad was very informative and accommodating to my questions at hand. Not only did he deliver on his promise but the quality of the product is outstanding. The install Crew Valerii and his team were very respectful, kind and professional to the space they worked in. They made sure they cleaned up after they had completed the project. I highly recommend this company and crew to anyone in need of high-quality windows and doors. Thank you for your excellent service!
Susan B
Susan B
Highly recommend Vlad and his guys, amazing service and great quality of work. They go above and beyond.
Rob R.
Rob R.
I had 10 windows replaced by OnStar windows in Ajax. They did a fantastic job with competitive pricing and great customer service.
Aran Raj (.
Aran Raj (.
ON Star Windows just recently completed an installation of 8 windows for my house in Beamsville.Despite harsh wintery weather conditions outside they showed up on schedule and completed the work and installation with excellent quality!The windows look great and I would not hesitate to highly recommend OnStar and their team to anyone for quality/on time service and competitive pricingThanks ON Star!
Makumba Peter M.
Makumba Peter M.
I recently had On Star Windows & Doors replace four windows in my house, and I couldn't be happier with their service. From start to finish, their team was professional, timely, and cost-effective. The installation was smooth, and the quality of their work exceeded my expectations. I highly recommend them to anyone looking for reliable window replacement!
Dmitry Z
Dmitry Z
Vlad was incredibly helpful and attentive from the On Start, and his team did a fantastic job installing brand-new windows throughout my home last year. From the office staff to the installers, everyone was professional, and my windows turned out even better than I imagined. The price was also surprisingly affordable compared to other companies, making it an even better deal. After a full year, I can confidently say they’ve performed great through all seasons, keeping my home warm in the winter. A wonderful experience overall—I’d definitely recommend them!
Tatiana G.
Tatiana G.
I recently had my windows installed by On Star Windows and Doors, and I am very impressed with their service and product quality. From the first consultation to the final installation, everything was handled professionally and efficiently.The team was punctual, skilled, and worked quickly without compromising on quality. The new windows not only look great but also improve insulation and energy efficiency in my home. I noticed a significant reduction in outside noise as well.Customer service was excellent—friendly, knowledgeable, and always ready to help with any questions. The installation process was smooth, and the team left everything clean and tidy after finishing the job.If you’re looking for a reliable company for window installation, I highly recommend On Star Windows and Doors. Great quality, professional service, and a hassle-free experience!
Оксана І.
Оксана І.
I recently had On Star Windows & Doors install new windows and doors in my home, and I couldn’t be happier with the results! From start to finish, the experience was seamless. The team was professional, punctual, and highly skilled, ensuring that every detail was taken care of with precision.The quality of the windows and doors is outstanding—energy-efficient, beautifully designed, and built to last. The installation crew worked efficiently, leaving no mess behind and making sure everything was perfectly aligned and sealed.I highly recommend On Star Windows & Doors to anyone looking for top-notch products and expert installation. Thank you for the excellent service!
Alcina B.
Alcina B.
Enertec Window S.
Enertec Window S.
This is the second house they have done for me. The price is great (1/2 my other quotes... for the SAME Windows, same manufacturer!)no fancy sales people & stupid slide shows to pay for, just no nonsense quotes, honest hardworking people and great product. will recommend again and again
Sarah W.
Sarah W.
We’ve used On Star twice now. Vlad is professional, responsive and his team always does amazing work; very courteous and clean. We will definitely call Vlad for our next project!
Remi J.
Remi J.
Best price in the GTA area! Excellent service, installation was done in two days like they said it would. I would definitely recommend them!
Tuti J.
Tuti J.
We got our windows replaced by this company in November. I did not leave a review as I wanted to test the windows in the winter for 100% satisfaction. We are very pleased with all the work from admin to window quality to installation. Admin is very organized; they book you in and make sure you get the installation on time and in an organized manner. The installers are very friendly and organized. They show up on time and did a very good and clean job. They also cleaned up after they finished. We saved a lot of money on heating this year and did not experience any condensation at all. There was a slight problem with the lock of the sliding door, and Vlad, himself, showed up and fixed the problem. We are very glad we chose their services.
Soudabeh R.
Soudabeh R.
Amazing company ,the customer service and the crew installation made a great job .Everything is clean and everything is good.The owner of company VLAD give me the best price .
matan S.
matan S.
good service and good installation!!!
Иван К.
Иван К.
The installers were absolutely amazing - Matan and Vlad are true professionals that really go out of their way to help out. However, customer service can be improved with responding back to requests from the customer support line.
Majed R.
Majed R.
I dealt with Vlad from ON Star Windows and I am so glad that I did. He is honest, patient and he was able to deliver on time. Highly recommend working with him.
Elizabeth B.
Elizabeth B.
Excellent window and door contractor. Good pricing, professional service, and really high quality installers. I had 3 basement windows and 1 side door replaced, and the installers did an excellent job and kept their worksite extremely clean.Highly recommended, I will be using them to do my front door as well next year. Great job, guys.
Anthony
Anthony
Vlad was super helpful and attentive from the start. The team installed all brand new windows in my home and the project went great! From admin to vlad to his installers… wonderful overall & my windows look better than I expected. There were a few bumps we came across along the way but Vlad was quick to repair.I’m confident that they will preform well in winter/cold months to come.Thank you!
Ashley M
Ashley M
I just installed my home windows recently from onstar windows. The installer Ruslan and his team Dima & others professionally installed my windows. They were very sincere with their work and finished job on time. Great Job and Appreciated!!
Mohammed B.
Mohammed B.
I recently had the pleasure of working with ON Star Windows and I couldn't be happier with the product and service I received. From start to finish, their team was professional, accommodating, and went above and beyond to ensure that the project was seamless.Firstly, they provided me with an offer I couldn't refuse, making the decision to work with them an easy one. What impressed me most was their willingness to go the extra mile to ensure that the project would be completed on time. During a time when my parents were sick with COVID, Vlad willingly came by, taking all the necessary precautions, and took careful measurements of all of my windows.Throughout the installation process, ON Star Windows was incredibly accommodating and understanding of my unique situation. I have two cats that can be a bit finicky, but their team took extra care to ensure that my pets were not disturbed during installation. They were also very tidy and cleaned up after themselves, leaving my home looking better than before they arrived.Finally, I appreciated the way ON Star Windows communicated with me throughout the project. They answered any questions I had along the way and made sure that I was completely satisfied with the end result. Overall, I highly recommend ON Star Windows for anyone looking for exceptional service and quality workmanship.
Jamie G.
Jamie G.
We just replace some windows and doors and we are really happy,starting from Vlad till the guys that installed everything perfect,highly recommended, they were fast and clean👌👌
Rosa O.
Rosa O.
I'm so glad I found HomeStart! Best ones in Toronto! They replaced windows in my cottage and now it's much warmer inside. The result is on point! If I decide to renovate my house I would definitely work with them again!!
Sano F.
Sano F.
My friends recommended Vlad to install our front door and I’ve never been happier! Vlad and his team was super responsible and answered all of my questions, even the stupid ones. Excellent quality for reasonable price 10/10!
Timeia B.
Timeia B.
I recently had them install 4 windows and 2 doors in my home, and I couldn't be happier with the service they provided. From the initial consultation to the final installation, the team was professional, courteous, and efficient. The installation was carried out with great care and attention to detail, with the team ensuring that no existing trim was damaged during the demolition process. I would highly recommend this crew to anyone in need of high-quality windows and doors.
Haik M.
Haik M.
The best customer service in Ontario. All jobs have been done on time. Thank you!
Vlad B.
Vlad B.
27 September they came to install 2 doors and 6 windows. First they used floor protection and after themselves they cleaned up. The demolition was gentle so the didn't disturb any existed trim no after repair needed. The windows and doors instalation was clean and professional. They caulk everything inside outside what was possible make sure is water proof. They foamed all over for perfect air seal. The aluminum cuping also good. The job was down by Dimitri and two other guys. Big thanks for them they are professional. We really happy and we recommend the company and this crew. Thanks for Eddy and for on stars for a reasonable. price
FruiVega
FruiVega
Excellent workmanship of Sasha and Igor. Highly recommended to everyone.
Aurelida L.
Aurelida L.
Good value, great customer service, responsive team members, quick and clean installation. Would recommend!
Maria S.
Maria S.
Patricia M.
Patricia M.
Installed two new windows, which are great quality. Price is very reasonable too. They cleaned up reasonably well after they finished with the installation. Only minor issue is when I asked them to put up the blinds they took down, the guy seemed irritated and started saying things like "don't you know how expensive to install a blind?". He could have just explained why his company doesn't out blinds back up.
David L.
David L.
Very good price, will a high quality . The worker was so professional 😄 and done them job very fast . Very good company 🤩
Ferdous A.
Ferdous A.
Sikh kids K.
Sikh kids K.
I just got the windows installed, i must say they do pay a lot of attention to detail. The quality of the windows are great, it cuts down the sound a lot with their new double pane windows. Will update my review if any repairs need to be done or servcing, but so far so great i recommend this company.
Next To U.
Next To U.
So happy with our new door.They did an awesome job. Also cleaned up afterwards and they were both lovely lads.Highly recommend and we'll be using this company again in the spring for a few windows in our basement that need to be replaced.
Audrey G.
Audrey G.
Vlad and Boris and whole team did a FANTASTIC JOB on my windows... 24 windows in one day! The best is, the team did a flawless work, quality windows, and left the house cleaned after. The guys are all well mannered, cheerful, and very respectful. A+ quality service!I can't thank ON Star enough!You guys are the best. I highly recommend ON Star...speak to Vlad and he will make things happen to your great satisfaction!
Alfred M.
Alfred M.
Very professional and great quality service I had all basement windows and side door installations. Would highly recommend this company! Great work
Matthew G.
Matthew G.
I received very professionally service from Richard,Sergei and their installation staff. They worked very hard and cleaned up all the debris,left nothing behind. I would recommend them to anyone . Thanks again.
Kanadalı T.
Kanadalı T.
VLad came to measure the windows that I need to change.He was very friendly and he is not the type of person who will scam you for the money. He tells you what is best at a reasonable price. All the best for this young entrepreneur.
@Vi / Mississauga
Victoria R.
Victoria R.
I am very satisfied with the great price ,workmanship and quality of the product. At first was very skeptical but they called on time and came to install first thing in the morning . Love my new window and will recommend to all my neighbors and friends. 🏆🏆Job well done . Thank you, On Star windows . 👍👍
Agnes D.
Agnes D.
Craig M.
Craig M.
Great expérience always got back to you love my windows very professional, highly reccomend
Sue H.
Sue H.
Why I chose On Star: 1) they followed up with me after giving me an estimate, 2) the price was right.Why I recommend On Star: 1) Did an expert installation finishing off with aluminum siding around the window and patio door, 2) completed the job in a timely fashion.
Ria S.
Ria S.
On Star Windows and Doors went above and beyond for us. Our home sustained storm damage to the large living room window and we called so many numerous companies to have it replaced as soon as possible but because every time they called and found out we only at this time needed one window they refused to help us out. Then we found On Star on Facebook and Vlad. Vlad came out to our home, explained in detail what we required due to the our climate and stormy area. The window was quoted and ordered and made in a fantastic turn around time. Vlad scheduled our installation date and he and his professional installer came out and installed our new window. They completely sealed, insulated and finished the trim both inside and out. We are greatful and thankful for Vlad and the company and highly recommend them to anyone who needs Windows and doors done. We have no more issues at all the Livingroom is warmer, the windows work great and I can remove the screens with ease in and out with bad hands. Truly thankful for Vlad and his crew God bless Merry Christmas and happy new year.
Angie S.
Angie S.
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