John and his team installed a new sliding patio door within the last couple of months. There were a…read morecouple of visits to our place to make sure everything would fit and the colours would match existing windows and the interior. They made good practical suggestions regarding the model of door and handle styles and colours. We couldn't be happier with the job they did. Everything was removed and the new door installed with everything as neat as a pin when they left. The new door has much more glass area than the old door and provides a great view of the trees in the back yard. Pricing was very competitive.

Dave came to the house and looked at the project we had and gave suggestions and tips as to guide…read moreour process.

Scott fixed a quirky screen door problem. He found an effective solution with expertise and…read moreefficiency. Very professional and committed to doing the best job possible! Very fair pricing.

From the owner: Niagara's Premier WIndow and Door Company Quality Products,…read moreExceptional Installations, Friendly Service

Had every window and door replaced in 2 stages this year. Love my beautiful wood grain and…read moredecorative glass windows and sidelights, love my blind in glass sliding doors and side door, the salesman was honest and upfront with me and gave me suggestions which I thoroughly appreciated. Love the look of all the new windows, no more noise, no more wind, and most of all I can actually see out of the windows. My biggest appreciation goes to the installation teams, they were respectful, professional and did a superb job. I was here for the first round of installation back in March, but couldn't be here for the 2nd, I was worried but in the end there was nothing to be worried about, the installation team were extremely professional.

I had the front door, side door, back patio doors and six windows replaced along with having the…read moreframe on both garage doors capped in aluminum. The crew was here for 2 days and did an excellent job. They also carted away all the garbage and put new wood trim on the inside of the windows and doors.

My family just recently got a quote to redo my parents. though we didn't end up going with Gerry's…read moreRoofing, every person we dealt with was warm, respectable, and engaging. The gentleman who came out to look at my parents Roof was extremely thorough concerning what the job would be from start to finish including materials that they would use and insurance, etc.

We have had two roofs replaced, all our windows and door done thru Gerrys roofing. When the last…read moreroof had issues with leaks and was under warranty Gerry's roofing refused to honor the warranty. They charged us over $400.00 while under warranty. Gerry even said we didn't have our roof done with his company even after showing the contact. We recently got a call from the new owner's employee, calling us a valued customerand would like to help if we had any issues. We sent all the related receipts but they decided not to offer any compensation. So new owner but same policy of NOT honoring the warranty. For all the work this company has done on our home they will never get our business again. The warranty isnt worth the paper its written on.

They were very polite and help full when they fixed my bathroom mirror that was stained on the…read morebottom. What they charged was amazing with inflation the way it is. J.c.

Awesome service from an awesome company!…read more These guys have helped me out of a jam more than once. They came out promptly and helped me out when one of the windows shattered out of my business and I literally could not go home until it was fixed. I spent a lot of time guarding the hole in the building where the window once was until Guelph Glass showed up and saved the day! They have done not only big jobs for me, but also tiny ones as well. Once I had them put a piece of glass into a locket for me and they did it cheerfully, even though I'm sure it was a pain in the butt, and frankly, not even worth their time to do. AND they even gave me a FREE box of glass once when I asked them for some of their extra unusable pieces for an art project I was working on. So I HIGHLY recommend Guelph Glass for your biggest projects and also your smallest. They're fast, friendly and fabulous!

2 month wait time from time of deposit to install. install was quick and easy from a third party…read morewell qualified trades person. Thank you Dan at a great competitive price.

Save your money and go elsewhere . I've owned plenty of doors in my life but never had problems…read morelike the ones from Dans discount windows and doors. Within less than one year from having a new front door installed by Dans, it's been nothing but problems . The wood around the striker broke shortly after install, I called them and they talk to you like you've never used a door before , they put all the blame on us for being too aggressive opening and closing the door and the project manager constantly had to leave multiple times for personal problems (which has nothing to do with the customer- we all have problems in life) ) - all this with a lifetime warranty on the door, which they point out when purchasing but they don't honour it. The hardware on the door never stays tight so every month I've have to re tighten all the hardware (which is absurd ) and they said they would try to fix the broken wood by the striker but they never return your call or show up - I'll be replacing this door before it's even 3 years old because I'm sick of the maintenance required to just keep it operational . Worst customer service I've ever had . Save your money and buy elsewhere. Buyer beware I only gave one star because I couldn't give zero stars

MUIS is amazing! Professional, quick, and craftsmanship is second to none. I'll need more windows…read moresoon and won't bother looking for any sales anywhere. I'll go right to MUIS.

Had all my windows and doors replaced. They come out measure…read moreup the windows and doors. Gave me a quote and also informed me that it would be cheaper if I purchase my own door handles and they would install them. They did a GREAT job and didn't ask for one penny over their quote. They use CANADIAN built windows and doors.

We had Rockalevel build us a beautiful second story deck off of our living room. From start to…read morefinish, their team was professional, efficient, and incredibly skilled. They completed the project quickly without compromising on quality, and the attention to detail is outstanding. The deck not only looks amazing but feels sturdy and well-built, giving us complete confidence in their work. The quality of the deck far exceeds the price we paid. The entire process was seamless, and communication was clear throughout. Highly recommend!!!!

I added a second floor bedroom/bathroom above the front of my single floor house. Sam and Anthony…read moreof Rockalevel worked with me on ideas for the design, got an architect's submission for a building permit, and completed all stages of what was an extensive second floor addition in a professional and highly skilled manner. All aspects of the work, from the custom windows, the cupola in the ceiling, the pocket doors, to the new stairs down to the main floor are beautiufully done to the highest level. Whenever I had an idea for something special or additional, they listened and even improved on my suggestions. I recommend Rockalevel without reservation for any renovation project.

Bryce was quick to respond with our request to change our front door lock. He came with all the…read moreright tools, and wasted no time in getting the lock replaced. He also ensured the door was shutting correctly, and always with a smile.... Thanks Bryce!

Good service! I was locked out of my room again, and this…read moretime I decided to call alpha locksmith, since previous times other locksmith would not open my door without breaking a lock and changing it, which costs too much. Alpha locksmith did a great job, they came to my house in about 25-30 mins and opened the door without breaking the lock in just a few minutes. I would definitely recommend this company.