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Marks windows and doors

Window Installers in St. Catharines, Ontario
Ranked #8 in St. Catharines | Grade B
4.90 (77 reviews)

Marks windows and doors

Marks Windows and Doors focuses on careful installation and neat finishing for residential window and door projects in St. Catharines, Ontario. Communication is straightforward, and jobs are organized to minimize disruption in the home.

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Why Homeowners Choose This Business

Homeowners report reliable scheduling, clear answers to questions, and tidy results. Installations are completed with attention to details like casings and sealant lines, and communication remains consistent from estimate to finish Local experience that helps homeowners across St. Catharines, Ontario compare a more region-aware provider.

Service Area

Serving St. Catharines, Ontario and nearby Niagara-area neighborhoods, availability based on schedule and project scope.

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Listing details

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  • Service information
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How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Renovation Services
  Installations
  Window Installation
  Window Replacement
  Door installation
  Entry Door Replacement
  Patio Door Installation
  Energy Efficient Windows
  Window casings and trim
  Basement Window Replacement
  Caulking and weather sealing
  Whole-home window upgrades
  Gentek windows
  Draft reduction

Window replacement and installation; door replacement and installation; casings and interior trim finishing; energy-efficient window options; patio and basement window upgrades; removal and disposal of old units; caulking and weather sealing.

Reviews

Customer Reviews

Manal Khairi
Mark replaced the front door of my house and I couldn’t be happier with the result. He did an excellent job — the installation was done carefully and professionally, and the door looks great. Mark was reliable, easy to communicate with, and…
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Mark replaced the front door of my house and I couldn’t be happier with the result. He did an excellent job — the installation was done carefully and professionally, and the door looks great. Mark was reliable, easy to communicate with, and clearly takes pride in his work. I would highly recommend him to anyone needing door installation or similar work.
Jon McMillan
Thanks very much to Mark and Will for the great job on my window install. I needed Energy Star certified windows for the rebate program and federal loans that were availble at the time, and the Gentek windows installed both look great and m…
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Thanks very much to Mark and Will for the great job on my window install. I needed Energy Star certified windows for the rebate program and federal loans that were availble at the time, and the Gentek windows installed both look great and meet the requrements.

I did some other work along with the windows, but the difference in heat retention this winter is noteable. No more draughts and cool spots, like the 40+ year old windows they replaced. Perhaps most impressive is the difference in soundproofing; it is quieter inside the house with the windows closed than it was before.

Highly professional and responsive throughout, and a local team which is a big for me. I prefer to work with smaller local contractors than franchises of national chains. Highly Recommend.
Kathie Anderson
If I could give Mark 10 stars, I would! He replaced 8 windows in my rental house and my tenant was also impressed with Mark's professionalism and his personal approach. Mark's workmanship is top notch, he installed beautiful window casing…
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If I could give Mark 10 stars, I would! He replaced 8 windows in my rental house and my tenant was also impressed with Mark's professionalism and his personal approach. Mark's workmanship is top notch, he installed beautiful window casings with backband, which was more than I expected. I would definitely recommend his services, his expertise, his helpful suggestions and his competitive pricing. I will definitely hire him to do the basement windows next year !
Kelly Elgersma
Mark was quick to respond to my calls, was friendly and trustworthy. He did his work quickly and tidied up very well. I was thrilled with our new windows! I am also a repeat customer.
Christine Rheaume
We had more than 20 windows replaced in our home, and we are very happy with the results. Mark and his assistant Will were professional, kept us well informed, and stayed organized throughout the project. They worked quickly and paid close…
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We had more than 20 windows replaced in our home, and we are very happy with the results. Mark and his assistant Will were professional, kept us well informed, and stayed organized throughout the project. They worked quickly and paid close attention to details, even on the high and hard-to-reach windows.

We appreciated that it was easy to stay in our home while they worked. Their respectful and careful approach made everything go smoothly and without stress.

We highly recommend Mark and his team for window replacement. Great service from start to finish!

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Frequently Asked Questions

Projects commonly include double-hung, slider, casement, and basement windows, along with patio door units. Energy-efficient options are available to help meet performance targets where required.

Yes, door replacement is a regular part of the work, including front entry doors and patio doors. Installations include proper sealing and finishing so the new door operates smoothly and looks cleanly integrated.

Customers have noted installations of products that meet common efficiency standards. During estimates, you can discuss product ratings to align with current rebate or financing program criteria.

Finishing details such as interior casings and caulking are included as needed to achieve a neat result. Reviewers often comment on precise trim work and attention to detail.

The crew will protect the work area, remove old units, and install the new windows or doors, then clean up before leaving. Communication during the day keeps you informed about timing and any decisions needed.
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Opening Hours

  • Monday 9:00 AM – 5:00 PM
  • Tuesday 9:00 AM – 5:00 PM
  • Wednesday 9:00 AM – 5:00 PM
  • Thursday 9:00 AM – 5:00 PM
  • Friday 9:00 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed

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Business Details

Business Rating
4.90 (77 reviews) Pro Listing
Address
44 Andrea Dr, St. Catharines, ON L2S 3N8, Canada, St. Catharines, ON L2S 3N8
Business Type
Window Installation Service
Website
http://windowsanddoorsbymark.com/
City Page
Window Installers in St. Catharines, Ontario

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