Window Installation in Poquonock Bridge, CT

Windows That Actually Lower Your Energy Bills

Professional installation that stops drafts, cuts heating costs, and makes your home comfortable again.

Two workers in orange safety vests and gloves are installing a window. One holds the window frame, while the other secures it in place, much like a roofing contractor in New London County ensuring a sturdy roof. The background reveals a blurred view of greenery outside.

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A man in blue overalls and a cap is smiling while using a caulking gun to seal a window frame in New London County, CT. He stands in a bright room with natural light streaming in, perhaps taking a break from roof installation tasks.

Energy Efficient Window Replacement Connecticut

What New Windows Really Do for You

Your heating bill drops because heat stays inside where it belongs. No more cranking the thermostat to fight drafts from old, leaky windows.

You stop hearing every car that drives by. Modern windows cut outside noise so you can actually relax in your own home.

Your house feels the same temperature in every room. No more cold spots by the windows or rooms that never seem to warm up no matter what you do.

Window Company Poquonock Bridge Connecticut

We Install Windows Right the First Time

Sullivan Contracting has been installing windows in Connecticut homes for years. We know what works in our climate and what doesn’t.

We’re not the crew that shows up, slaps in some windows, and disappears. We handle the details that matter – proper flashing, weatherproofing, and making sure everything fits right.

You’ll find us right here in Connecticut when you need us. No chasing down out-of-state contractors or dealing with companies that vanish after they cash your check.

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Professional Window Installation Process Connecticut

Here's Exactly What Happens During Installation

We start by measuring every window opening precisely. Old houses settle, and cookie-cutter measurements lead to gaps and problems later.

On installation day, we remove your old windows carefully to avoid damage to your walls or trim. We clean up the opening, check for any issues, and prep everything properly.

Then we install your new windows with proper flashing and weatherproofing. This isn’t just dropping a window in place – we’re sealing against Connecticut weather for the next 20 years. We test every window to make sure it opens, closes, and locks properly before we’re done.

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New Windows Installation Poquonock Bridge

What's Included in Your Window Installation

You get professional removal of your old windows and complete cleanup. We don’t leave you with a mess to deal with.

Every installation includes proper weatherproofing and flashing. This is what keeps water out and your energy bills down – and it’s where a lot of installers cut corners.

We handle any trim work needed to finish the job right. Your new windows will look like they’ve always been part of your home, not like an obvious replacement job.

A person in yellow gloves expertly handles a white window frame with multiple panes, bringing a touch of brightness. It reveals lush green foliage through the opening. The light-colored interior wall complements the scene, reminiscent of meticulous roofing contractor work in New London County, CT.
Most homes take 1-2 days depending on how many windows you’re replacing. We can usually do 8-10 windows in a day if everything goes smoothly. Older homes sometimes throw us curveballs – maybe the opening isn’t quite square or we find some rot that needs addressing first. We’ll give you a realistic timeline upfront and let you know if we run into anything that changes the schedule. The key is doing it right, not just doing it fast.
Vinyl windows handle Connecticut’s temperature swings better than wood. They don’t expand and contract as much, so you get better seals and fewer drafts over time. Wood windows look great, but they need regular maintenance – painting, staining, checking for rot. In our climate with wet springs and cold winters, that maintenance adds up. Vinyl gives you the performance most homeowners want without the upkeep. If you love the look of wood, there are vinyl windows with wood grain finishes that give you the best of both worlds.
Most homeowners see 15-25% reductions in their heating and cooling costs, but it depends on what you’re replacing. If your current windows are original to a house built in the 1970s or earlier, you could see even bigger savings. Single-pane windows or windows with broken seals are basically holes in your walls when it comes to energy efficiency. The exact savings depend on your home’s size, how many windows you’re replacing, and your current energy usage. We can give you a better estimate once we see what you’re working with.
Most window replacements don’t require permits in Connecticut as long as you’re replacing with similar-sized windows in existing openings. If we need to change the opening size or you’re adding new windows, then we’ll need permits. We handle all the paperwork and scheduling for any required inspections. You don’t need to deal with the town hall or figure out what’s required. We know the local requirements and make sure everything’s done properly and legally.
We stop and talk to you before proceeding. Common issues include finding some rot around the window frame or discovering the opening isn’t square. We’ll explain what we found, what it means for the installation, and what it’ll cost to fix it properly. No surprises on your final bill. Most problems are minor and can be handled the same day. Occasionally we find something that requires ordering additional materials, which might delay completion by a day or two. The important thing is addressing problems correctly so your new windows perform the way they should.
If you’re feeling drafts, seeing condensation between glass panes, or struggling to open and close your windows, 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. If the frames are rotting, the seals are failing, or you’re constantly painting and maintaining them, you’re throwing good money after bad. We can assess your current windows and give you an honest opinion about whether repair or replacement makes more financial sense for your situation.