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

I highly recommend WFO. Last year we had 10 windows replaced and this year had 2 front picture…read morewindows replaced and couldn't be happier. From our visit to the factory, then to the installation and cleanup afterward were all very positive experiences The young men installing were polite, friendly and professional. And the pricing of the windows was fantastic. Thank you all at WFO for an outstanding experience!!!! Laurel and Chris K

We signed a contract with this company on March 1st, 2026 and were told our windows would be ready…read moreand installed by the middle of May well that never happened so after several ignored calls we finally received a call they would be installed July 3rd yes 17 weeks later but that never happened no phone call no explanation why just never showed up so I called the company on Monday and was told they ran into issues on Friday and they put us back on the schedule for the 30th when I told them absolutely not that was totally unacceptable and I wanted a refund she said ok what about Thursday I told her that was there last chance to show up and I would do I needed to do they did show up installed windows and I will say the installer Jessie Jr and his helper went above and beyond and did an amazing job and this company should never get rid of him because there are not many workers like him him so for that I thank him and he deserves 5 stars

2025年7-8月间，我们请Jason…read more杰森门窗为我们家换了新窗。从精准测量到新窗安装完毕只用了大约一个月的时间，非常快捷。安装师傅不仅技术非常好，给人印象很深的是他们非常敬业，对工作一丝不苟，所以做出来的活很精细，又美观，让我们全家都特别满意。新窗使我们家的面貌焕然一新，视野开阔了许多，而且隔音效果非常好，外面的噪音明显减少了。自然，冬天的保暖效果也一定好。和Jason 杰森门窗的合作和谐愉快，他们的工作让我们放心满意，我们会将Jason 杰森门窗推荐给朋友圈。

From the owner: We are a reliable door and window installation service provider you can trust. Give me a call, and…read moreI'll guarantee your satisfaction. We will help you learn more relevant knowledge about doors and windows, make you understand more about window & door products you purchased. We always take our work seriously. Gaining customer recognition is our ultimate goal.

Living in Northern Ontario, we searched for the best option during our extensive house remodel to…read moreget the best windows out there with consideration of durability and energy efficiency. We have some big/huge windows, and considered wood, vinyl, and fiberglass. We dove deep into the NRCAN ratings of window suppliers, and Fibertec checked off all the boxes (being a Canadian Company was a bonus). The windows all installed well and the house is warm and cozy with no condensation on the inside of these triple paned windows. Overall, these windows were an amazing choice and have held up well. Fibreglass (with glass in the name) expands and contracts at a similar rate to the glass panes themselves, so we do not regret our choice! At about the 13-to 14-year mark, we experienced some failures of the seals within approximately 60% of the windows. The first sign is frost between the panes (in the corners) on the coldest winter days (say -20C or lower). In another year, the low-E coating begins to break down, becoming patchy and noticeable. The initial 15-year warranty paid off, as Fibertech has a solid process in place for honouring their warranty and shipping new panes for replacement. The replacement panes are all built with super spacer technology, which is designed to prevent the problem of failing seals. We have new warranties on the new panes and are only 2 years in with no problems noted.

Our two recently installed Fibretec sliding patio doors exceeded our expectations both in price…read moreand quality compared to our previously installed sliding door by Pella. Our only complaint is the quality of the screens. These could be improved significantly! Bill Maxwell

We called for a door with 2 sidelights quote. We had Steve Matika come out to give us a quote. He…read morestayed for 2 hours. Did not give us a price. He told us that he had to send us a quote via email. That was strange as everyone that came after him gave us a quote on the spot. He told us he would send the quote the next day and he was going to drop off a sample of the color sample as well, as he lives very close to us. The next day he did not show up. The quote was never sent. We have not hear from him since we saw him at our house. Very unprofessional!!! What a waste of time! I guess Brock Windows and Steve Matika don't care about quotes, sales and good customer service!!! We got a great quote elsewhere and we are getting our new door installed next month! Thanks for nothing Steve and Brock Windows and Doors!!! What a wonderful prctice for your potential new customers!

some good installers. some not so good. currently we have a service issue with our front door. it…read morehas been months since we tried to get through to Brock. just recently received response asking that we send fault issues and photos which had already been sent.

Wonderful service! The guys were so friendly and professional. Fast efficient and the windows look…read moreamazing!! Thank u!

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

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.