Get matched with top window pros in Warren, NH

"From start to finish, Steve was a dream to work with. First, he educated us on the different kinds of films to put on our new windows. He left us with three different patches of film on our window for a week so we can make a decision based on what kind of light and how it looks with different weather patterns. During the installation process Steve was a professional. Explained the entire process step by step. He was efficient, kind, and informative. His price was fair, his work and performance were off the charts, and above all, he was just a great guy. We are grateful we found him and our new home looks better than before!"

"Nikiya came to my home to help me choose windows to replace old windows that are leaking cold air in winter. With the price of oil this year, it is worth the money to do this work. His presentation was very well done, with demonstrations that help me to choose the windows for our home. Nikiya was friendly and extremely knowledgeable about his products, and I appreciate that."

"Everyone from the Sales rep, project manager, site manager and installers were very professional. The installers showed up on time and worked late each day. They cleaned up each night and at the end of the project. The project manager kept in contact with us everyday and showed up to go over daily progress. Very happy with the outcome of my siding and roofing project. Would definitely use Capital Construction in the future if needed."

"Manny and his crew were on time they were print they had took off old roof put on a whole new roof in one day plus fixed my porch roof at no additional cost they cleaned up all the mess which was well done Manny had everything right in order from the dumpster being delivered to getting the shingles he kept me posted at all times he gave me a price and stuck with the price even when he did extra work on my porch roof Manny gave me a really great price and his work and workers were excellent thank u Manny ! Yur hard workers thank u again and thank u Angie !"

"Just finished a visit with Foreman Doug and his crew, Devin, Sean, and Mason. Waterproofing the basement and super sound and solid work! Doug was professional and very good at keeping me in the loop with the project over the 3 day visit, and created a solid system that we are confident will keep water out of the basement forever. Above and beyond as well with problem solving when having to find solutions to fit our basement layout, all with a solid financing option/great price and 5 year warranty/ yearly inspection plan. If you are stuck with water in your basement, get Groundworks working for you ASAP!"

"I called M and M Cleaning last week, within minutes Mark returned my call and he came to interview the same afternoon. We booked for today, Monday, August 3, 2026. I was impressed with how quickly he contacted me. None of the other companies even called back. Today, Mark, showed up and had quite a list of tasks that I requested to be done. He cleaned my very dirty oven and my kitchen that needed some help! He accomplished that easily and moved on to the rest of house. I found that he was very professional, dependable and had a nice demeanor about him. I found his cost to be quite fair! I even booked him for next week to do my bedroom carpet. I would definitely recommend Mark!"

"Very professional, arrived when he said that he would and did a great job on the window installation and fixing siding that was not longer attached to the house. I will use him again for any project that I may have."

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We are experts in all aspects of window projects and specialize in multiple window instillation for residential homes. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

From start to finish, I’m here to help with every project—big or small. Whether you need me for an hour, a day, or a week, you can count on me to get the job done right. I treat every project as if it were my own home, with attention to detail, honest communication, and pride in my work. No one will care more about your project than I do.

"I was very pleased with the work he did, he has a nice way of explaining things , I sure I will hire him again for other projects when needed he is a very pleasant person to deal with. Tank you Scott for being such a nice guy ."