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.

I needed to replace some windows in my living room and shopped around for quotes from a few…read moredifferent companies. DPG was one of the first to respond to my inquiries, despite it being a smaller job. Dennis is extremely friendly and was able to come by and give me some options and estimates. He measured and ordered the Harvey windows that I selected, and when they arrived a few weeks later, he was quick to schedule an install. He and his assistant did a great job, left a clean work site, and the windows look perfect!

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.

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!

They showed up on time…read more They cleaned up their work place before leaving each day. This was huge as it definitely helped us not feel like we were living in a construction site. He had told us it would take 3 days. They were finished in 2.

Did a really nice job replacing an exterior door. Trim was done nicely. Cleaned up pretty well. I'd…read moreuse them again. Price was similar to other quotes I got.

This past summer I had a decision to make on siding a small Cape in Andover. There was a tenant…read morefamily with young children living in the home and it was important to me that the work be done well and safely. O'Sullivans price was higher than some but it was very obvious that the quality and workmanship was also going to be much higher. When the work was completed I was very delighted. Tenant told me he had to pick up nails off the driveway. When I told the crew chief this they were over in about an hour to sweep the driveway and the yard for nails. Good decisions often lead to good outcomes and as fate would have it the tenant family wanted to buy the house after it was cited so beautifully. It is now their property and the warrantees have transferred to them for lifetime service.

I had O'Sullivan Installs put siding on my house almost 3 years ago. Shortly after install a few…read morepieces began to warp. I contacted Tim (owner) to report the issue. He told me he would send someone out to match the prices to replace the warped pieces. The exact lot cannot be matched and Tim told me that it would be a warranty issue with the manufacturer. He told me this about a year ago! It is ridiculous! Tim is hoping I forget about this while keeping my money and not standing by his promise. I would not recommend using this company.

MA *****…read more Thank You to Steven & his brother for the excellent job installing my new windows and sliding door! You did an exceptional job on the extra work required due to the terrible condition of my old ones!! Not only does my condo look brand new inside...the whole world outside looks so much better now too. I highly recommend Dracut Window and Door to anyone looking for a reliable, professional, courteous, on-time and clean contractor who's customer service is exemplary!

Dracut Window and Door made our window replacement project a real pleasure. We appreciated Steve…read moreRoger's detailed presentation of the Mercury replacement window and its features. It was a no pressure sales presentation. We picked the right contractor. The installation team was on time, efficient, professional, quality focused and very tidy. Steve, Bobby, Andriana and Christ were simply outstanding. Dracut Window and Door deserves the highest satisfaction rating - definitely Five Stars!! If you want the job done right, you must use Dracut Window and Door. We will definitely be reaching out to them for future projects!

The Company did original install in 2004 so Owner reminded me of a lifetime warrantee on the belt…read morethat broke. Saved me about $200. When the new belt arrived at our home the Owner came out same day and got me back in service, programmed the 3 new remote controls, and made sure the other door was operating properly before leaving. Fee was very fair. I can highly recommend. Cheers, Mike K.

From the owner: At Bluff Overhead Door, we specialize in providing dependable, high-quality garage door services…read morefor both residential and commercial clients. Whether you need emergency repairs, spring replacement, opener troubleshooting, or a full garage door installation, our experienced technicians are here to help—quickly and professionally. We service and install all major garage door brands and models, and our work includes everything from fixing broken cables and misaligned tracks to upgrading old doors with modern, energy-efficient options. We also offer installation of keypads, remotes, and smart garage door systems to enhance security and convenience. What sets us apart is our commitment to excellent customer service, transparent pricing, and lasting workmanship. We understand how important a functional and safe garage door is, and we’re proud to offer fast response times and flexible scheduling to fit your needs. Whether it’s a routine maintenance check or an urgent repair, Bluff Overhead Door has you covered—every time.

What a professional, honest to goodness fellow with team of 2-3 guys. The owner of d company Jerry…read more What a decent man! Couple of years ago he replaced my dining nd living room windows nd he did an outstanding job with an unbeatable price. Nd couple of days ago, he replaced my 2sliding doors in fmly room. Another amazing job... He's prompt, detailed, hard working man tht doesn't cut corners. Awesome personality. I wish I can give give him 10stars instead. Tku Jerry for a job well done! Keep up d good work!

From the owner: Continental Window Company provides new window installations and entry door installations to the…read moreBillerica, MA area.