R-Tech Windows is a Local Company that has been serving Newmarket and surrounding areas since 2003. Located at 1200 Twinney Drive in Newmarket, they are a Dealer of North Star Windows and Doors.

North Star is the largest Vinyl Windows Manufacturer in Ontario and a leader in the Canadian Vinyl Window Industry. They have very high Energy Star ratings and are also a CSA Certified Company specializing in Custom Made Vinyl Replacement Windows.

R-Tech has completed over 2000+ installations and supply over 30 Local Contractors with North Star Windows. At R-Tech every installation is just as important as the next, from one window for a client renovating a Bathroom to Realty Companies with multiple Rental Properties.

R-Tech does not employ commissioned sales people and they treat every job with the same respect. For all your Window, Door and Porch Enclosure needs, call us and experience the R-Tech Difference. 950-830-4095


  • Windows
  • Doors
  • Porch Enclosures
  • Exterior Shutters
  • Siding
  • Eavestroughing


- Kim A.

After many years of looking into our backyard through the same old sliding door and its defective glass, we decided to go with a new sliding door. We reached out to Jim at RTech Windows, who came by to measure. The installation was smooth and easy. A few months after it was installed, the door was open, but the screen was not – our dog saw a squirrel, lunged towards it and ended up putting a hole in our brand new screen door. Jim came by, took the screen with him, fixed it and replaced it, all within a few days. He didn’t charge us. Excellent customer service!. Thank you, Jim and RTech Windows.

- Ven & Diane Andersen

Hi Jim,
I just wanted to reach out to you in regards to our recent patio door and rear kitchen window install. We were very impressed right from the point of sale dealing with Mat and with the communication from yourself on the timelines as we are in the middle of a renovation. The quality of the door and window has met our expectations and has beautified the rear of our home. I was also very impressed with your installer Tommy who was very polite and worked in a professional manor and made sure to keep our new floors and furniture protected while performing his install.
In the near future we will be looking at replacing a few more rear windows and will definitely be calling on RTech Windows and your team to do the next install.
Kind Regards

- Anne Feherty, Google Review

We’ve just had our new windows installed by R-Tech! Our experience from start to finish was extremely professional and very friendly! Rain halted installation the first day so the team worked twice as hard and twice as long on the second day! The guys were very respectful of our furniture and flooring and cleaned up after they left! We got three quotes from different companies and R-Tech provided a very competitive price! Jim also went that extra mile for us repairing a torn screen door in another part of the house! I highly recommend this company

- Ali Khandani, Google Review

Tommy and Alex were amazing guys. They really did a fantastic job in installing all our windows. Went above and beyond in being supportive and listening to our needs. Thanks Matt as always for your referral.

- Sarah Young, Google Review

Great service from booking the quote, windows being delivered on time, and the install. Love the windows. Everything was amazing. Very Happy

- Jenna Bishop, Google Review

We are very happy with our new door. Thank you to the the entire team – from sales to installation – for your amazing service.

- Julie Bulie, Google Review

Great company. Just had some sliding door mini blinds installed. Even with covid delays they were ready early and installed right away. Quality seems to be really good and they even look better then I thought. Thank you Jim & Matt. btw R-tech replaced all my windows in my home approx 10 years ago. They all still look great with no issues.

- Baker's Crush, Google Review

Went above and beyond what I expected. Thank you for the extra accommodations.

- Joshua A. Campbell (knowledgebrkr), Google Review

I’ve had nothing but good experiences working with R-Tech Windows! From products to installation, these guys know what they’re doing. They’re on my preferred list of businesses to work with that I give to clients. Highly recommend!

- Brittany McGann, Google Review

They did a beautiful job on our windows and doors; efficient & honest, thank you for your hard work & attention to detail!!

- Misha L, Google Review

If u need windows this is the place to get them ,respectful sales people and very skillful and professional installers



R-Tech Windows

1200 Twinney Dr Newmarket, Ontario L3Y 9E4