I had an incredible experience with siding and window services. The quality of the work was…read moretop-notch, with attention to detail and superb craftsmanship. The guys was professional, reliable, and exceeded my expectations. Highly recommend his services

From the owner: At A-1 Siding & Windows (Niagara) Ltd., we specialize in siding, window and door installation,…read moresoffit, fascia and ornamental architecture. We carry a variety of siding choices, including vinyl, alumni and steel. We also carry windows for either replacement purposes or new builds. Energy efficient options will help keep your heating and cooling costs down and beautify your home. Whatever your home requires, give us a call and we will assist in selecting the right products for you.

I highly recommend Universal Windows. The quality of work is excellent, the crew is very…read moreprofessional and their products is excellent.

From the owner: Providing high-quality windows and doors for customers in the Niagara region has been our priority…read moresince 1999, choosing Universal Windows is a great way to increase the value of your home.

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

We recently had them replace our storm door and entry door. Our threshold was a very old and in…read moredesperate need of replacement. Dan was very knowledgeable and explained everything well. He also took the time to help me find the entry door that would work perfectly for our house. Dan is very conscientious, fair priced and did a beautiful job. If you need door or windows replacements, I would highly recommend Dan at Alt Builders.

I'm writing this review on behalf of my friend Jeff who recently had a patio door replaced in his…read morecondo. Based on the reviews he read here on Yelp he decided to go with Alt Builders and their owner Dan. He contacted Dan and was who responded very promptly on a Sunday afternoon. Dan came out the next day to size up the job. He was prompt and very knowledgeable about what Jeff was looking to have done. The patio door was ordered and came in approximately 3 weeks later. Dan and his crew were able to come out to do the job within a couple of days and completed the job in a day and a half just like he promised. They cleaned up and the installation went smoothly. The price was very reasonable and Jeff is definitely going to hire Alt Builders in the future to get some doors installed. He highly recommends Dan for any work or repairs you might need.

About 2 months later, I have my 3 new windows! DeMartino is a great locally owned business in…read moreNiagara Falls. They helped me install 3 new windows in bedrooms and were priced competitively and the windows they installed were beautiful! If you're looking to have some windows done, definitely give them a call before going with any other company--they beat other quotes out and the quality of work was very high. It took them about 5 hours to replace 3 windows this past weekend and I could tell they treated the job with meticulousness and care as if it were their own home. I was very grateful to have found them.

Always responsive to your needs and gets the job done quickly. Recommend them for your roofing needsread more

This company replaced 3 windows. I don't remember the installer's name but he did a great job. Very…read morepleased, would use them again in a heartbeat.

From the owner: Replacement Windows, Entry Doors, Patio Doors, Vinyl Siding, Eavestrough, Soffit, Fascia, Storm…read moreDoors, Porch Enclosures, and Custom Exterior Renovations.

If you're thinking of getting a new roof -- go with someone else!! This place has caused my home…read moreand family more trouble than our ancient garbage roof ever did. We were quoted for a new roof on our home in April 2025 and work began soon after. The workers had total disregard for our property. They stomped across our front garden, left their empty cans in our children's sandbox, and left nails just all over. They also smashed and snapped a huge limb off of our lilac bush (I watched them do this carelessly). They left extra pieces of roofing on the roof that blew off into the yard as well as a significant amount of nails on top of the roof of our porch. I understand the work can be messy, but this seemed outrageous. I was picking nails off our driveway for months afterward. The real issues started this winter. We live in Colden, NY and are used to harsh winters with an old roof. However, you'd think after almost $30k for a brand new roof you wouldn't have to worry about leaking/ insane ice issues on it. We have had leaking in the past that we were told would be remedied with the new roof. Instead, the leaking has been significantly worse this year causing more damage through our walls and ceilings. The first time they sent a repairman out to address the issue I was not asked if we were home or if they could come on the property. They called and told me (again, not asked) they'd be at our house in 20 minutes. While I appreciate the quick response, I am a SAHM with two littles and really did not feel comfortable receiving a call that someone would be coming into my home while I was home by myself. In addition to this, they gave the repairman the wrong address and he ended up stuck in my neighbor's driveway which was completely torn up when they pulled him out. The repairman did nothing but take photos of the house and shrug. He told me he couldn't do anything because the amount of ice on the roof would further damage it. The second time this happened, he took a ladder up to look at the issue and told us it was because of the siding. Our siding is old, however we are not convinced the siding is the issue. He found more pieces of roof that'd blown off in our yard and told us he was going to leave to reshape them and come back later that day to reattach them. He never came back, and we never heard from anyone again.

Stellar Roofing your the best. The gentlemen who did the front of my house was awesome, I have no…read morecomplaints only great things to say, they did a excellent job on the Tando stone siding on the front of my home, they walked me throw everything, they even worked during single degree weather and it was freezing over the last few days. They cleaned up all the nails, and even brought there own dumpster. My home looks total different and beautiful. Thank you Stellar La kesha Dillard RN

Mr. DeFranco was awesome. He was polite, and professional, and best of all, he was cheap and…read morequick. Twin City Glass gouges everybody 10 times more than their competitors. I would recommend him to anybody who needs a window repair, especially if you have an old house. I already recommended him to my bank teller when I withdrew money to pay him. Great job Mr. DeFranco. You will be getting my business again if I ever require your services. I would give him 6 stars if I could. Thanks again.

From the owner: Window and screen repair. Interior Storm windows…read more Thermopanes replaced (cloudy or broken)