Professional Window Replacement & Installation in Southern NH
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Enhance Your Home with Professional Window Installation and Replacement in Southern New Hampshire
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 Whether you’re building a new home, remodeling, or replacing outdated windows, our experienced team delivers lasting results with premium materials and craftsmanship built into our services.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.
Custom Window Solutions for Every Style and Budget
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.
Signs It’s Time for Window Replacement
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Outdated windows often lack proper insulation, causing your HVAC system to work harder and increasing your energy costs.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.
Trusted Window Services Across Southern New Hampshire
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.
Energy-Efficient Windows for Year-Round Comfort
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.
Testimonials
What Our Customers Say About McCarthy Exteriors LLC
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.
Larry Bruno
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.
Kristi Legere
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.
Homeowner in NH
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.
McCarthy Exteriors LLC Service Area
Just A Few Of The Areas We Serve...
Brookline
Hollis
Milford
Amherst
Windham
Bedford
McCarthy Exteriors LLC
Your Trusted Roofing & Exterior Experts in Southern New Hampshire
Delivering expert roofing, siding, windows, doors, and decks 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.
FAQs
Frequently Asked Questions About Window Installation & Replacement in New Hampshire
How do I know when it’s time to replace my windows?
If your windows are drafty, difficult to open, have condensation between the panes, or show signs of rot or water damage, it may be time for a replacement. Our team provides detailed inspections and honest assessments as part of our window services in NH to help you make the best decision for your home.
What types of windows do you install?
We offer a wide range of window types including double-hung, casement, bay, bow, slider, and picture windows. Our window installation and replacement services are designed to provide both energy efficiency and visual appeal, with materials that stand up to New Hampshire’s climate.
Are your windows energy-efficient?
Yes, we install high-efficiency windows with features like Low-E glass, argon gas fills, and insulated frames. These features help reduce heat transfer and improve indoor comfort year-round. Energy-efficient window installation and replacement is one of the best investments you can make in your home.
Do you offer custom-sized or specialty windows?
Absolutely. We offer custom window sizes and shapes to fit your home’s specific design needs. Whether you're looking for specialty architectural styles or unique finishes, our window services in NH include tailored solutions for every home.
How long does a typical window installation take?
Most window replacement projects can be completed within one to three days, depending on the number of windows and the scope of work. Our team works efficiently while maintaining a high standard of craftsmanship and cleanliness throughout the process.
Do you offer warranties for your window services in NH?
Yes, we stand behind our work with manufacturer warranties on the windows we install and workmanship guarantees from our experienced crew. Your satisfaction and peace of mind are our top priorities.
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Expert Roofing & Exterior Services in Southern New Hampshire — Book Your Free Estimate Today
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.”
Transform your home’s exterior with McCarthy Exteriors LLC — your trusted partner for roofing, siding, windows, doors, and decks in Southern New Hampshire. Based in Brookline and proudly serving Hollis, Milford, Amherst, and beyond, our licensed team brings over two decades of craftsmanship and reliability to every project.
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