Window Installation in Groton Long Point, CT

Windows That Actually Work for Your Home

Energy-efficient installation that cuts your bills and keeps you comfortable year-round.

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Professional Window Replacement Services

Lower Bills, Better Comfort, Zero Headaches

Your energy bills drop the moment we finish installing your new windows. No more cranking the thermostat because drafts are making half your house feel like an icebox.

You get consistent temperatures in every room. No more hot spots in summer or cold corners in winter that make you avoid certain areas of your own home.

The outside noise stays outside. Traffic, neighbors, lawn equipment – it all gets dialed down so you can actually relax in your living room. Your home becomes the quiet retreat it should be, not a place where you’re constantly aware of everything happening on the street.

Groton Long Point Window Company

We Know Connecticut Windows Inside Out

Sullivan Contracting has been installing windows throughout Connecticut for years, and we understand what works in our climate. Coastal conditions, seasonal temperature swings, nor’easters – we’ve seen it all.

We’re not the guys who show up, rush through the job, and disappear. We live and work in this area, so our reputation depends on doing things right the first time.

Every installation crew is fully licensed and insured. We use quality materials designed for New England weather, and we back our work with real warranties that mean something.

Window Installation Process

Straightforward Process, Professional Results

We start with a free estimate at your home. We measure every window, discuss your priorities, and give you a clear price with no surprises later.

Once you’re ready to move forward, we order your windows and schedule installation around your timeline. Most residential jobs take one to two days, depending on how many windows you’re replacing.

On installation day, our crew arrives on time with all the materials and tools needed. We protect your floors and furniture, remove old windows carefully, and install new ones with proper sealing and insulation. We clean up completely before we leave, so you’re not dealing with construction debris in your yard.

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New Windows Installation Options

Quality Windows Built for Connecticut Weather

We install energy-efficient vinyl and wood windows designed to handle everything from summer humidity to winter storms. Double-hung, casement, sliding, and specialty windows – whatever fits your home’s style and your functional needs.

Every window gets properly flashed and sealed to prevent water infiltration and air leaks. We’re not cutting corners on the details that determine whether your windows perform well for decades or start causing problems in a few years.

You get manufacturer warranties on the windows themselves, plus our warranty on installation workmanship. If something isn’t right, we come back and fix it. That’s how local contractors stay in business – by standing behind our work.

How long does window installation typically take for an average home?

Most residential window installation projects take one to two days, depending on the number of windows and any complications we encounter. A typical home with 10-15 windows usually gets completed in a single day if the weather cooperates. Larger homes or jobs involving custom windows might stretch into a second day. We always give you a realistic timeline upfront and keep you informed if anything changes. The key is not rushing – proper installation takes time, and cutting corners leads to problems down the road.

What's the difference between vinyl and wood windows for coastal areas?

Vinyl windows handle salt air and moisture better than wood, which makes them popular in coastal Connecticut. They won’t rot, warp, or need regular painting, and they typically cost less upfront. Wood windows offer a more traditional look and can be painted or stained to match your home’s character, but they require more maintenance over time. Both can be energy efficient when properly installed. Your choice often comes down to your home’s style, your maintenance preferences, and your budget. We can show you samples of both materials so you can see the actual difference.

How much can new windows actually save on energy bills?

Energy savings depend on what you’re replacing and how your home is heated and cooled, but most homeowners see a noticeable difference in their utility bills. If you’re replacing single-pane windows or old double-pane windows with failed seals, the improvement can be significant – sometimes 15-25% on heating and cooling costs. The biggest impact usually comes from eliminating drafts and improving insulation around the window frame. We can’t guarantee specific dollar amounts because every home is different, but the improvement in comfort is immediate and measurable.

Do you handle permits and inspections for window replacement projects?

Most window replacement projects in Groton Long Point don’t require permits if we’re installing the same size windows in existing openings. However, if we’re changing window sizes, adding new windows, or doing structural modifications, permits may be required. We handle all the permit applications and coordinate with local inspectors when needed. We know the local building codes and what the town requires, so you don’t have to worry about compliance issues. We’ll tell you upfront if permits are needed and factor that into your timeline and cost estimate.

What happens if there's damage to the wall when removing old windows?

We inspect the condition around each window before starting and let you know if we spot potential issues. Most window replacements go smoothly, but occasionally we find rot, water damage, or structural problems that weren’t visible until the old window comes out. When that happens, we stop work, show you what we’ve found, and explain your options for repair. We can handle most common repairs as part of the project, or work with you to coordinate with other contractors if needed. The key is addressing problems properly rather than covering them up with new windows.

How do I know if my windows need replacement or just repair?

If your windows are drafty, difficult to open and close, have broken seals in double-pane glass, or show signs of rot or damage around the frames, replacement usually makes more sense than repair. Windows that are 15-20 years old or older often cost more to repair than they’re worth, especially when you factor in ongoing maintenance and energy losses. During our free estimate, we’ll honestly assess each window and tell you which ones might be worth repairing versus replacing. Sometimes a few problem windows are dragging down your whole home’s efficiency, and replacing just those makes a big difference.

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