Windows are more than just a source of natural light—they play a vital role in your home’s energy efficiency, comfort, and curb appeal. At McCarthy Exteriors, we specialize in high-quality window installation and replacement services designed to improve your home’s performance and appearance. Whether you’re building a new home, remodeling, or replacing outdated windows, our experienced team delivers lasting results with premium materials and craftsmanship built into our services.
We understand that windows must perform well in New Hampshire’s varying climate. From keeping your home warm during harsh winters to letting in cool breezes during the summer, professionally installed windows make all the difference. Our team will help you choose the right style and features to meet your home’s functional and aesthetic needs.
At McCarthy Exteriors, we offer a wide variety of window options to fit any style, from traditional to contemporary. Our window installation and replacement services include everything from classic double-hung windows to modern energy-efficient models with Low-E glass and insulated frames. Whether you’re looking to improve insulation, reduce noise, or boost your home’s natural light, we have the ideal window solution.
We partner with leading manufacturers to ensure your new windows deliver durability, performance, and style. During your consultation, we’ll assess your home’s layout, energy usage, and overall design to recommend the best products for your goals. Our team handles every step—from removal of old windows to precise installation—ensuring a seamless process and beautiful results.
Explore how our window services align with our full range of exterior home improvements, including siding, roofing, decks, and doors.
Old or damaged windows don’t just look bad—they can lead to higher energy bills, moisture problems, and reduced indoor comfort. If you notice drafts near your windows, condensation between panes, or difficulty opening and closing, it’s likely time to consider professional window replacement.
Outdated windows often lack proper insulation, causing your HVAC system to work harder and increasing your energy costs. Replacing them with high-efficiency models can significantly reduce heating and cooling expenses. Window replacement also boosts your home’s resale value and improves sound insulation, especially important for homes near busy roads or noisy neighborhoods.
When you’re ready to update your windows, our team provides honest assessments and personalized recommendations based on your home’s condition and your priorities.
As a locally owned and operated business, McCarthy Exteriors is proud to serve homeowners throughout Southern New Hampshire. We bring more than two decades of experience to every window installation and replacement project, offering reliable service, transparent pricing, and a customer-first approach.
Our team understands the unique requirements of New Hampshire homes and delivers window services that are tailored for the region’s climate and building standards. We take care of all permitting, installation details, and cleanup so you can enjoy a stress-free experience from start to finish. For clients interested in additional upgrades, we also offer door installation and roof replacement for a complete home exterior transformation.
Choosing energy-efficient windows is one of the best ways to improve your home’s thermal performance. Modern windows come with features like argon gas-filled panes, advanced weatherstripping, and UV-blocking coatings that help regulate indoor temperatures and reduce your carbon footprint.
Our window installation and replacement services are focused on long-term energy savings, lower utility bills, and better indoor comfort. We also offer triple-pane windows for enhanced performance in extreme weather, as well as custom shapes and finishes to match your home’s character. Properly installed windows reduce heat loss in winter and prevent excess heat gain in summer, keeping your home comfortable all year long.
Homeowners and property managers across Brookline, Hollis, Milford, and nearby New Hampshire towns trust McCarthy Exteriors for their roofing, siding, windows, doors, and decking needs. With decades of experience, competitive pricing, and outstanding customer service, we consistently deliver exceptional results our clients can count on — every time.
Tyler and his crew were awesome to work with. They were efficient with all their work and materials and left a fantastic finished product. I would highly recommend them to any family or friends for any of their projects. I went with a Harie siding product on my home and was nervous of hiring a contractor that did not know what they were doing, but these guys put all my worries to rest on the first day.
I had a fantastic experience working with Tyler McCarthy from McCarthy Exteriors. Tyler maintained excellent communication throughout the entire project, always keeping me informed and promptly addressing any changes that arose. His attention to pricing was impressive, and he consistently provided me with options to manage costs effectively. Tyler’s depth of knowledge in the field was evident, and he confidently utilized his extensive resources to tackle any uncertainties that emerged.
From quote to completion, McCarthy Exteriors delivered top-notch service. Their team was punctual, detail-oriented, and respectful of my home. The new roof looks amazing and the entire process was stress-free. Truly a five-star experience.
Delivering expert roofing, siding, windows, doors decks and home addition needs with top-tier craftsmanship and care. We proudly serve homeowners across Brookline, Hollis, Milford, and nearby towns — offering fully licensed and insured service with free consultations and dependable results you can trust.
Enhance the safety, value, and curb appeal of your home with professional roofing, siding, window, door, and deck services. Whether it’s a full roof replacement or a custom-built deck, getting started early can help you avoid costly repairs later.
“At McCarthy Exteriors, we offer free, no-obligation estimates to help you plan your next home exterior project with confidence. Our fully licensed and insured team proudly serves Brookline, Hollis, Milford, Amherst, and surrounding NH communities — delivering high-quality results, every time.”
