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.

Local Window Replacement Company

We have installed hundreds of windows and doors over the last few years, with aim to provide greatest customer experience. Our clients’ referrals and repeat business are the most important accolade for us that we always strive to earn.

Whether you want new windows for your Oshawa home or want replacement windows in Hamilton, look no further than On Star Windows and Doors. We have a team of skilled professionals for installing replacement windows in Newmarket and all over GTA. Our main aim is to provide the top-quality window replacement services for customers in Toronto, Ajax, Pickering, Waterloo, Cambridge, Kitchener, and Brantford. Our doors and windows are known as the best on the market possessing benefits such as splendid appearance, energy saving, and security.

Vinyl, Casement and Awning Windows

We install products that are laboratory tested and certified according to the Canadian Standards. Also, when you choose us for window replacement in Pickering, you get the best windows for the best price. We offer a variety of styles and sizes to suit all of your needs, including awning, casement, sliding, bay, and bow, single-hung, double-hung, and more to make your home look incredible, as well as more energy-efficient.

We also offer the best value replacement windows in Cambridge and our window installation services are most economical in Cambridge, Oshawa, Ajax, Newmarket and Waterloo. Whether you need to replace a single window or you want to update your home with more energy efficient and beautiful windows and doors, we have everything you need. We offer a huge line of vinyl replacement windows and doors in Brantford that can also be custom designed for your home.

Serving Markham, Newmarket, Hamilton, North York

When windows age, they become drafty, hard to operate, and may even develop mold. These old or damaged windows make your home unsafe, as well as negatively impact its energy efficiency. Replacing your windows is a wise decision to save money on heating and cooling costs. At On Star Windows & Doors, we install energy-efficient windows that are available in a variety of styles and finishes. As an established window replacement company in Oshawa, we are committed to full customer satisfaction by offering high-quality windows and doors that are finely manufactured.

If you’re looking for premium-quality replacement windows in Pickering, we can help you find exactly what you’re looking for. Our wide range of windows in fantastic style and designs can astound you. Whether you need replacement windows in Scarborough or Brantford, we have the most stylish collection of replacement windows. All our products are well-insulated and provide high energy savings.

Local Replacement Windows Contractor Markham

On Star Windows & Doors is a well-established window replacement company in Cambridge. Our premium window products are installed by our competent and skilled experts to last for decades. We also install dual-glazed and triple-glazed windows that are available in an array of colors and grill configurations. As the top window replacement service provider in Ajax, we offer the most competitive prices. We are also the first choice of homeowners in Bowmansville for window replacement. With us, you get the most stylish, durable, and energy-efficient replacement windows at affordable prices.

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

  • 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

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 L.
Tuti L.
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
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.
We were looking for patio doors earlier this year and after several quotes we decided to go with On Star due to the fact that there prices were far better then others. We had concerns that the quality might not be as good as the other more costly places but decided to take a chance because of the good reviews. we are extremely happy with the doors as well as the great quality of customer service we received.
Diane T.
Diane T.
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.
Surinder Vohra (.
Surinder Vohra (.
just have 8 windows and a patio door installed with On Star, very satisfied... would recommend friends and family ... good job Boris
Ribbon
Ribbon
They installed three doors for us and we are very happy with installation. The individual who dealt with us was very professional, and friendly. We recommend their services for sure.
Nadia S
Nadia S
Overall a great experience with On Star Windows. They offer great prices for a quality product. Finished the job in time as promised and great finish. The entire team is a joy to work with but special mention for the installers Boris and Alex who were just outstanding.
Mukul G.
Mukul G.
Great job done in March, and so far my double door looks and works great! Installation was fast! I waited to see if the color would fade, and it hasn't.
Alice F.
Alice F.
Just had my window and two doors installed and the two men that installed them where amazing very Professional. Cleaned up after them selves explained what they where doing and very polite thank you onstar I would use this company again
Kalina
Kalina
Excellent work, I changed almost all of windows and doors.. Great job and very fast..
Elton N.
Elton N.
Awesome job! Hired On Star Windows & Doors to replace my windows in Aurora and Niagara Falls investment properties and was not disappointed. The staff was professional, clean and polite. Definately recommend.
Nik L.
Nik L.
The whole experience was great. Windows were competitively priced and lowest compared to the others. The quality of the windows are very good. The installation was done in a very professional manner and the windows look very beautiful after the installation. I got recommended by a friend and I feel it was worth it.
alok C.
alok C.
Book a Free In Home Estimate or call us at 647-383-7675

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