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Window & Siding Installation in Merrimack, NH

Merrimack-NH

A Better Experience for Merrimack Homeowners

Owning a home in Merrimack means dealing with real New England weather, changing seasons, and the kind of temperature swings that test every window, door, and piece of siding on your house. It also means you take pride in where you live. When something starts to feel off, whether it’s drafts creeping in during winter, siding that’s faded or worn, or windows that no longer open the way they should, you don’t just want a contractor. You want someone who listens, communicates clearly, and treats your home with the same respect they would their own.

At Universal Windows Direct of Manchester, we’ve had the privilege of working on dozens of homes right here in Merrimack. We’re family-owned, locally operated, and deeply invested in this community. When we sit down at your kitchen table for a consultation, the conversation is never just about products. It’s about what’s bothering you, what you’d love to improve, and how we can guide you through a process that feels organized, transparent, and comfortable from start to finish.

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Windows That Make Merrimack Homes More Comfortable

When your windows are right, you notice it in small ways first. The living room feels warmer on a January morning without the thermostat constantly running. The upstairs bedroom stays cooler in July without that harsh afternoon glare. The house sounds quieter, more settled, as outside traffic and wind fade into the background. These improvements are what make a house feel like a home.

Our exclusive line of UniShield replacement windows are built specifically for New Hampshire’s climate and custom-made for each home. Whether you live in a traditional Colonial, a contemporary build, or something uniquely your own, we offer double-hung, casement, sliding, bay, bow, picture, garden, and specialty shapes designed to fit your space without compromising its character. 

Homeowners often tell us they feel a renewed sense of pride when they pull into the driveway and see clean lines and clear glass, rather than fogged panes or worn frames. Not only are their homes more energy-efficient, but they also feel solid, comfortable, and truly theirs again. That is what new windows should deliver in Merrimack. Not just an upgrade, but a noticeable improvement in everyday living.

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Siding, Doors, Roofing, and Skylights Done the Right Way

A home’s exterior does more than protect it. It reflects the pride you take in it.

Our exclusive UniShield vinyl siding offers a maintenance-free finish with the look of real wood, while Ascend composite cladding provides durability against moisture, pests, and harsh weather. The exterior doors we offer, including entry doors, sliding glass doors, and French doors, are selected not only for appearance but for security and insulation. We also hold Preferred Contractor status with Owens Corning, which allows us to provide roofing replacements that adhere to strict standards. We are also one of the few local teams that offer skylight replacement, which can be especially important when older units begin to leak, fog, or make the room below feel drafty.

For homeowners needing exterior services for mobile homes, we handle window, door, siding, skirting, and roofing replacements with the same level of care and communication as any custom home project. 

What Our Window Installation Looks Like, Step by Step

Most homeowners don’t remember the technical details after the fact. They remember whether the process felt smooth, whether their questions were answered, and whether they knew what was happening next. That’s why we keep the installation experience simple and well-communicated.

Step 1: Start with a real conversation in your home.

We walk through what you’re noticing, drafts, comfort issues, noise, sticking windows, and what you want the finished look to be, then talk through options that match your home and your goals.

Step 2: Measure carefully, then measure again.

Your windows are built for your home, so we take detailed measurements and schedule a second verification appointment to confirm everything before production. It’s one of the most important parts of getting a clean fit and a finished result that lasts.

Step 3: Review the plan and timeline with a dedicated project manager.

Once you move forward, you’re not left wondering what happens next. A project manager walks you through the plan, sets expectations, confirms the schedule, and stays in touch so the process feels organized rather than stressful.

Step 4: Install with care, then walk the project with you.

Our installers treat your home with respect, complete the work efficiently, and clean up thoroughly. Then we review the finished work with you, answer questions, and make sure everything feels right before we wrap up.

Step 5: Activate your warranty and stay available after the job.

We don’t disappear once the install is done. Your warranty is activated, your documentation is provided, and you’ll know exactly who to contact if you ever need us down the road.

The goal is for your project to feel predictable and well-managed from the first visit through the final walkthrough, with a team that treats you like a neighbor, not a number.

Want to see examples of our previous work? Check out our recent projects. You can also read real customer experiences on the review page.

Common Questions from Merrimack Homeowners

Each project is unique to your home. Estimates are always free and given in person, so you know exactly what to expect before making decisions.

Standard window installations are often completed in as little as one day, depending on your selections and the scope of your project.

Flexible payment plans may be available. For more information, explore financing choices and discuss your options during a free consultation.

Our team handles all warranty registration right after your project, and you’ll receive documentation outlining your coverage.

Award-winning products, more than 80 completed projects locally, and genuine family ownership set us apart. Everything we do is built around your needs, not just selling a product.

Let’s Talk About Your Merrimack Home

If you’re starting to notice drafts, rising energy bills, fading siding, or doors that don’t close properly, we’d love to sit down and talk. No pressure. No obligation. Just a clear conversation about what’s possible and how we can help. Because in Merrimack, we’re not just improving houses. We’re taking care of neighbors. Schedule your free estimate today.

FAQs

Actually, it’s super easy. Just give us a call at (603) 218-3756, or fill out our Free Estimate Form. After everything is scheduled, one of our friendly product specialists will meet with you at your home at your convenience — including nights and weekends. During the consultation we’ll discover your specific needs, show you the quality solutions and value we can offer, then provide you with a fair transparent estimate for our services.

Referal Rewards Programs

Referral Rewards Program

Our biggest goal is to make our customers so happy with their homes that they can’t wait to share that joy with the people they love. That’s why we created the Universal Windows Direct referral program. When you refer a friend or family member, you earn $50, and they can enjoy up to $500 in savings on their own home project. In short, with UWD happiness shared is happiness rewarded!

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You don’t need to do anything but enjoy your new products and all the benefits they provide for you and your family! Your warranty is valid from the moment we installed them. We will send you your warranty packet as soon as your job is complete.

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See What Our Customers Are Saying About Their Remodels

Start to finish these guys were the best call, from sales to service everyone was polite happy professional and knowledgeable. They got 5 windows done in under 2 Hours! They took care of our home like it was their own, cleaning up, putting cloths down etc. Our windows look absolutely stunning and we can’t wait to do the rest of our house

Nicky Sorensen

Fantastic service before, during and after installation. Short timeline from ordering to install appointment. Financing was available and that was easy too. Pricing was better than many others and the windows are made with quality. With the warranty...can't beat it!

Seldon N.

I can't say enough about this company. We had the best experience from the start of the project to the end. Alex Drechel was professional and knowledgeable. The installers, Mitch and Dan, were awesome and very friendly. Customer service was great, they were kind and patient. If I could give 10 stars, I would give 11! Thank you!

Marc R.

Universal Windows replaced all the windows in our 25-year-old house constructed from poor, builder grade materials. A simple test of placing our hands on the inside window panes in winter proved that any energy efficiency from air pocket insulation in our double panes was long ago lost, most were difficult to open, and cracks were happening. Further, the builder's decision to break our colonial house windows into 24 small panes broke up the great outside views.

C Gad

Universal Windows Direct of Manchester was fantastic! We felt comfortable with the sales representative, the office staff was communicative and the installation date worked around our schedule. The crew who installed the windows were on time (to the minute!) of the appointment, left the house clean and the windows look great! We recommend them to anyone in need of new windows.

Gus

Universal Direct Windows of Manchester installed 2 entry doors in our home and we are very happy with the doors and very impressed with the workmanship of Michael and Nick who installed the doors. Everyone that we worked with at the company was a pleasure to work with beginning with Alex who showed us and explained to us about the doors that they installed. Andrea was great to work with as far as ordering and scheduling the work. Their prices were very competitive with several other estimates that we received.

Mike Allen

Universal Windows Direct was great to work with! They completed the project in a timely manner and were quick to replace a window that had arrived broken. Everyone was friendly and helpful. Highly recommend!

Anne Steckowych

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Industry-Certified


Our business holds several certifications from leading manufacturers and industry organizations, attesting to the quality of our team’s expertise and workmanship. 

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Our Location

Address
880 Candia Road, #8
Manchester, NH 03109
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Hours

Office Hours:
Mon-Fri: 8:00 AM – 4:30 PM
Our customer care team is available:
Mon–Fri: 8 AM – 8 PM
Sat–Sun: 10 AM – 6 PM
Showroom Hours:
Mon–Fri: 9 AM – 4 PM
Sat: By appointment only

Phone Number
(603) 218-3756
© 2026 Universal Windows of Manchester. All Rights Reserved

MHIC #183107