Capital Construction
Energy-Efficient Replacement Windows
No Interest & No Payments For 1-Year

Spring Sale
Get 15% Off Your Project
+ No Interest, No Payment for 18 Months
High-Performance Replacement Window Installation in Boston, MA, CT, RI & NH
The windows on your New England home play a more important role than you may realize. Home windows provide natural light and insulation while protecting your property from harsh weather. Plus, they contribute significantly to your home’s appearance and resale value.
If you’ve noticed that your home windows are leaky, damaged, or just plain dated, Capital Construction Contracting offers top-tier replacement window installation services. Our locally owned home improvement company serves Boston and communities throughout Massachusetts, Connecticut, Rhode Island, and New Hampshire, providing energy-efficient windows and other home improvement solutions to locals who demand the very best for their properties.
New England’s Replacement Window Installers
Capital Construction Contracting is a New England business through and through. With offices in Canton, MA, Woodbridge, CT, and Manchester, NH, our exterior remodeling experts understand the unique weather challenges that local homeowners face. That’s why we only install the best replacement windows for our customers. We’re pleased to offer:
Weather Master Extreme-Max vinyl replacement windows–our exclusive line of energy-saving, high-performance windows
Whether you’re interested in skylight installation or full home window replacement, you can count on Capital Construction Contracting to get the job done right. Our factory-trained installers work efficiently, adhere to the highest standards of craftsmanship, and never cut corners. And since our founding in 2005, we’ve established a stellar reputation for delivering outstanding, personalized customer service. Just check out our A+ rating with the Better Business Bureau and long list of glowing 5-star reviews.
Does Your Boston-Area Home Need Replacement Windows?
Sometimes it's obvious when windows need replacing–for example, rot and cracked panes or frames are hard to miss. But in other cases, the signs of a damaged or inefficient window are more subtle. Consider contacting Capital Construction Contracting for a replacement window consultation if:
Your utility bills are unusually high (the U.S. Department of Energy says heat transfer through windows is responsible for up to 30% of heating/cooling costs)
You can hear a significant amount of outside noise
Your windows are difficult to open or close
You regularly spot condensation on your windows
Your windows are more than 15 years old
Schedule a Free Consultation for New England Replacement Windows
Contact Capital Construction Contracting today if you’re ready to take the first step toward new, energy-efficient windows. Our friendly professionals will be happy to visit your home in Boston or elsewhere in Massachusetts, Connecticut, Rhode Island, or New Hampshire for a free consultation. Don’t forget to ask us about our replacement window specials and financing options, including no interest and no payments for one year.
Window Brands

Alside brings New England homeowners quality windows that they can trust to stand up against the harsh northeastern climate. Their leading vinyl window products bring unmatched beauty and strength to any home, as they can be custom-fit to your needs.

There’s a reason why Velux has been successful for over 60 years! Velux skylights offer the best natural light and ventilation that these windows can offer. Our Velux skylights will improve the look and feel of your room while helping you to save on energy costs.
What Our Windows Can Provide For Your Home
Our windows are made with the highest quality materials to ensure that they perform at their best for a long, long time. Our windows can make a big difference in your home by providing it with:
Insulation: Our replacement windows will keep your home cool in the summer and warm in the winter. In turn, this helps you save money on your energy bills each month! You’ll save a lot in the long run.
Natural Light: Natural light can make a room feel more open while also acting as a form of stress relief. Open spaces like these will make a home attractive on the market, which can up your property’s value.
Weather Protection: Whether it be hail, snow, rain or other debris, our windows have the strength and durability to stand up to it all. No more worrying about leaks or cracked windows!
94% Guild Quality Recommendation Rate


Window Styles and Options
Curious to see what window styles and options we offer? Click here for an in-depth look at our customization options!
Contact Us Today
Capital Construction Contracting can help ensure that your windows perform to the best of their ability while saving you money in the long run. To reap all the benefits of new windows, click here to contact us directly!
We've Built A Great Reputation 4.9 out of 5.0 stars based on 2,000+ reviews
See Our Project Portfolio
Client Testimonial
Home Remodeling Review
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I was immediately impressed with this company from when I first called them. They were informative, flexible to my schedule and a solid reputable company. I've dealt with a lot of different contractors and Capital Construction was a dream come true! From their office staff to production team and crew. Their crew done a fantastic job and finished sooner than projected. They followed all the covid guidelines and were amazing from start to finish. I 100% recommend this company to anyone. We are already planning our next spring project!
- Lydia S.
Special Offers

Save Up To 15%
Off Your Exterior Remodel
Call today to SAVE and become a Capital Preferred Customer!
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Spring Sale - 18 Months
No Interest, Minimum Payments
Save up to 50% off the installation on your entire house roof replacement project* And more!

Take Advantage
Of Our 15-year Financing Options
We offer flexible finance options with low-payment, low-interest, and long-term periods.
What Our Customers Have To Say
We wanted to change our tube to a walk-in shower. The proposed change was well explained, and we decided to go with it. The work was completed in 1 day and was done cleanly and efficiently. No regrets
Our experience has been phenomenal from start to finish! From sales, office, project manager, and the great guys that installed our roof. Communication was outstanding all around. Our roof was finished in one day!Definitely recommend this company!
I don’t write reviews often but I must say that Michael Gagnon and his team did a great job with my project! I have an older home with a lot of character and they did an outstanding job with my roofing installation!
I couldn't be happier with Capital Construction! Their team was professional, efficient, and did an outstanding job on my new roof. The quality of their work is top-notch, and they left my property spotless. Highly recommend!
We are very pleased with the outcome! Our house’s curb appeal has gone up exponentially and we would definitely use Capital Construction again for other projects, and we would recommend this company to others. Thank you!





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