Last summer I used Zen Windows to replace most of our windows and they were great!…read more I am going back to them again now to replace the remaining windows that we skipped last time. I would recommend them again and again, I am very pleased with their work - very professional and quick installation.

We signed with Zen Windows at the end of July after being told--in writing--that installation would…read morehappen within 4-6 weeks. It's now mid-November, and not only are the windows still not installed, but the installation date was just pushed again to mid-December--almost five months after signing. We specifically reviewed the timeline because we wanted this done before it gets cold. We have booked dog daycare which has to be rescheduled, it affects our schedules, plans, and will massively impact our work, which is WFH. The measuring process was chaotic. The person sent to measure always gave last-minute notice and had to come out multiple times because they kept miscounting the number of windows--always short by one. Communication throughout this process has been terrible. You have to constantly follow up for updates; Zen never reaches out proactively or takes ownership of delays. Every update comes only after you chase them. When we brought up these issues, the company's response was to blame the original sales rep, who is "no longer with them." Convenient excuse, but the timeline and promises were in writing. Zen has taken no accountability for the misinformation or poor service. Yes, they may be cheaper than competitors, but you truly get what you pay for--unreliable timelines, lack of professionalism, and customer service that's downright egregious. Buyer beware!

The response was very quick. Made my appointment with the owner. The owner's son did the estimate…read moreand measurements. No hard sell; just "this is what you need, this is what we got, this is the price." No nonsense. No pressure. The install team works for the company, not a sub-contractor. No multiple levels to wade through. That was a selling point for me. The team was fast, efficient, and friendly. The job looks great. Super happy with the outcome. Very highly recommend

The Fisher Window crew,Polo and Wilken just finished installing 11 windows in my home. They were…read morevery friendly and did a fantastic job, and a cleaned up as if it were their own home. Thank you Jeff, Ricky, and Kevin. BRAVO!!! Jerry A

Dennis is very punctual and very easy to work with. Great communication, always very responsive to…read moreemail and phone calls and keeping us up to date with the project. He installed 30 beautiful Harvey windows in 3 days. I will definitely recommend his service to friends and family.

Dennis replaced our old shutters and we couldn't be happier with the job! Our house looks so much…read morebetter. I had gotten a bunch of quotes he was very competitive, super prompt, and kept us in the loop through the entire process (removing the old ones, ordering and installing the new). We would absolutely use DPG again in the future! Quality work & happy to support a local business!

Great quality windows, truly from Europe. Amazing design and color matching for my home interior…read moreand exterior. Reasonably priced.

Replaced all windows and exterior doors, with new tilt and turn Rehau (German) products. Very happy…read morewith result. Keep house temperature and very easy to clean and open.

The response time for emails / messages was super quick and if they could not get back with full…read moreanswer there and then , they would still message to say they would be in touch later . As my issue was window replacement , after they had looked at it , due to the type & size the estimated price had to increase but they still gave me a good price and would have fixed the sash for me to reduce the price except it had been thrown out . The window had to be ordered & they were in touch with updates along the way which is very important as I'd never used them before and had paid 50% deposit . They were very very professional & polite & easy to have there doing the work when the work was being done .

Juan did a great job installing a door with new framing and new locks, etc,. He fixed a few things…read moresomeone else had installed that weren't level and did a few other minor handyman type services and I couldn't be happier with the results. He pays attention to detail and was very responsive and dependable. I will use him again for my next project!

We wired Window World of Boston to convert our 2nd floor kitchen casement windows into a bay…read morewindow. We also had them replace a stairwell window and two bedroom windows. Tom from Window World did a great job explaining all the options and was able to match the color for our stairwell window nicely with a wood pattern veneer. The price was reasonable compared to other quotes. Tom and the team were responsive and helpful when we had questions or issues, and the windows all came out great in the end.

The entire process from the home visit to the completed window replacement was very positive. The…read moresalesman who came to my home was very clear and explained all of my options. He gave me a few options which was very helpful. The installers, Manny and Francis, did a fantastic job of removing the old windows, replacing with the premeasured vinyl windows and trimming out the windows. They swept inside the house where they worked and picked up all the trash outside, While I felt the quoted price was a bit higher than other replacement window companies, the quality of the windows was better than similar windows. Five stars for an excellent experience. I highly recommend Window World of Boston.

Tried to rip me off and then appeared to gloat about it when I caught him…read more Paul the owner responded to a web request I put in, for a price quote. He responded, by text message. Weird but fine, if the text etiquette is on point. His was a mess. He asks me to take pictures inside and out, of the windows. Ok sure, but I'm one town over and you could just pop by. He asks what I want, I say picture windows. He sends me a picture of double hang and says he recommends them. Don't need them. Then he just TEXTS me a price range. Red flag. Where's your quote with the type of door being used? Also, the number is high. I ask for the SKU to look it up on my own. He sends me a generic link to an affiliate landing page for DOUBLE HUNG DOORS. Ok, so here's where you have to use your best judgement. These guys have great ratings on multiple pages, so they obviously do excellent installs. But that doesn't mean they aren't ripping people off, because you can get similar work done for MUCH cheaper. That's where I got him, bc he wasn't willing to disclose where his range was coming from and then immediately tried to pass me off to Renweal by Anderson, which is widely known as THE biggest price-hike in the game. The safe bet with them is whatever they quote you initially is about double what it should actually cost. So it makes sense the owner thought it's a reasonable peer in the industry. Then he weirdly started text-harassing me when I passed on his offer. Piss off.

If I could give more than five stars, I would…read more We were selling my family home and wanted to replace the basement windows before putting it on the market. My husband and I were only in town for a week and trying to tackle as much maintenance as possible in a very short window. After requesting a quote online, Paul followed up quickly via text and we scheduled a consult for the very next morning. Paul and his son were an absolute pleasure to work with. They clearly understood our situation--we just needed to get the house in good shape to sell--and never once tried to upsell us. In an age where so many companies subcontract everything out, it was incredibly refreshing to work directly with a father-and-son team who clearly take pride in their work. We even spent some time swapping stories about great rock 'n' roll shows we've seen. On their way out, I asked if we could quickly borrow their measuring tape to check the size of a missing piece of siding, since we planned to try fixing it ourselves. Without hesitation, they offered to take care of it when they came back to install the windows. That generosity alone meant so much and took one more thing off our very full to-do list. A few weeks later, the windows arrived and were installed without issue--and they absolutely added value to the house. But the story doesn't end there. Less than a week before closing, we discovered another piece of siding that needed repair. I texted Paul to see if they might be able to fix it or recommend someone, fully expecting to pay. Instead, Paul personally stopped by the very next day and took care of it himself. There is truly no one better to work with than Paul and his team. They are kind, honest, hardworking people who do excellent work and genuinely care about their customers. We are beyond grateful and wouldn't hesitate to recommend them to anyone.

You ever have a basement window just....sporadically shatter for no apparent reason? Well,…read moreevidently this is just a thing that randomly occurs in this part of town. The last time I had glass shatter spontaneously was back in '24 when our winter storm door screen was completely pulverized by the summer heat, it seems (Pro-life tip: swap out your storm door screens in the summer with mesh ones). On the back of that unforeseen devastation, out went my mass inquiries to all the local shops servicing the Nashua area. Out of maybe 5 (?), 3 responded almost instantly. One sent a quote so high, I was half tempted to reply and ask if I could have some of whatever they were smoking. Another replied with what seemed to be a promising rate, but there was one problem. Their communication was severely intermittent to the point where they inexplicably ghosted me faster than a recruiter responding to a job applicant. Ultimately, I settled on Good Window Works. They offered a fair quote, were easy to get ahold of, and even provided a COI statement as per the request of our housing board. For those unaware, a COI is a Certificate of Insurance. Basically, it's assurance to the board that the contractor in question is insured to complete the job without creating a liability if they, say....jam their thumb beneath a tack hammer or something. With those formalities out of the way, the job was simple enough: Replace the half of the basement window that abruptly disintegrated. All in all, the job took roughly 2 hours. In the end, the window he installed was so transparent, it looked like there was no pane at all in the frame. But no--the glass was just THAT pristine! I don't say this often, but....experiences like these are what I love most about being a Yelp writer. So rarely do I get to be in the position to not only promote another hard working local business, but also pose as the microcosmic advertising vehicle that just might serve as the prompt some very fortunate individual needs to go, "Yeah, I'm hiring this place to work on my house". If you're wondering whether you should hire these guys for your next installation or repair job, the answer is likely yes. Good Window Works is worth 5 window panes clearer than thin air out of 5.

I had a window with a broken pane on the third floor attic. I called several places, including one…read moreI've used for years for glass and screen repair. Only Good Windows responded and sent someone out to do an estimate. They just finished the job. The original estimate was done from the ground, however when the technician was able to get the unit out of the frame, (This is an old style window), we both saw that additional work had to be done. The tech did the work and did an excellent job. It was only a bit more over the original estimate, but quite reasonable. I highly recommend Good Window Works.

Excellent service all around! Installers were very detailed oriented which is nice to see. Hit…read morerecommend!

Accurate Glass provides exceptional quality and Professional Service! They were so helpful and…read morefriendly when I asked for a quote and they even camequote, out to get the exact measurements needed. The glass they provide is superior in every way and their installation services are TOP-NOTCH! They're THE BEST! They get an easy 5 STARS!came

John Sullivan at Seacoast Windows was an absolute gem! He and his team of crack window installers…read moredid a beautiful job of replacing six 84-inch tall windows of my condo in an historic 1800's mill building. These windows are huge, and had not been replaced since the mill was converted to condos in the '80's. I did go out and get 3 quotes from 3 different vendors, but Seacoast was the best quote, the most honest, wonderful people, and they bent over backwards to help. It was a dirty, complicated project made more complex by the difficulties of the tariff war. John was tireless in tracking down the Harvey windows and special trim that had to match the custom exterior trim color of the other existing windows in the building. John kept me updated regularly, and accommodated every wish the condo associated made concerning schedule and safety in the common areas. After installation, which went beautifully, they even cleaned the floors, too. Wow. If you want responsive, hardworking, competitively priced, customer-focused, skilled window installers, call Seacoast Windows right now. You will be very, very pleased.

John, Mike, Dan and Ryan are amazing. We could not have asked for a nicer crew. Hard workers,…read morethoughtful and knowledgeable. The windows look amazing. If you need new windows, don't waste your money on the big names. These windows are just as good and will last us a VERY long time. There was a lot of wood rot and they took care of EVERYTHING. No hidden costs or extra fees for unexpected issues.