Window Installation in Preston, CT

Windows That Actually Lower Your Bills

Professional installation that seals tight, saves energy, and keeps your home comfortable year-round.

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.

Hear from Our Customers

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.

Professional Window Replacement Preston

What Better Windows Really Mean

You’ll notice the difference immediately. No more cold drafts sneaking in during January. No more cranking the heat just to feel comfortable in your own living room.

Your energy bills drop because your HVAC system isn’t working overtime to compensate for leaky windows. The house stays at the temperature you set it to.

You get actual quiet. Traffic noise, lawn mowers, neighborhood sounds – they stay outside where they belong. And when storms hit Preston, you’re not wondering if your windows can handle it.

Preston Window Company

We Know Connecticut Windows

We’ve been installing windows in Preston and surrounding Connecticut towns for years. We understand what works in our climate and what doesn’t.

We’re not a national chain that rotates crews through town. We’re local contractors who live here, work here, and stand behind every installation we complete.

When you call us, you’re working with people who know Preston homes, Connecticut weather, and exactly what it takes to install windows that perform for decades.

Sporting a white hard hat and blue overalls, an individual measures a window frame with precision using a tape measure. The partially open window provides a blurred backdrop of other frames, reflecting the bustling energy of roof installation projects in New London County, CT.

Window Installation Process

How We Install Your Windows

First, we measure everything twice. Proper fit is everything in window installation, so we take precise measurements and verify them before ordering your windows.

Installation day starts with protecting your home. We cover floors, move furniture, and set up so your daily routine isn’t completely disrupted.

Each window comes out carefully to avoid damage to your walls or trim. The new window goes in with proper shimming, sealing, and weatherproofing – not just dropped in place and called good.

We test every window before we leave. Opens smooth, closes tight, locks properly. Then we clean up completely and walk through everything with you.

Ready to get started?

Explore More Services

About Sullivan Contracting

Get a Free Consultation

New Windows Preston CT

What's Included With Installation

You get quality windows from manufacturers we trust, not whatever’s cheapest that week. Double-hung, casement, sliding – we install what works best for your home and your preferences.

Professional installation includes proper flashing, weatherproofing, and insulation around each window. We don’t skip steps that matter for long-term performance.

All trim work is included. If we need to replace or repair trim during installation, that’s handled as part of the job, not an expensive surprise.

Preston homes have their quirks – older construction, settling, unique architectural details. We work with what your house gives us and make sure everything looks right when we’re done.

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 Preston homes need 1-3 days depending on how many windows you’re replacing and what we run into during installation. Older homes sometimes have surprises – rotted sills, non-standard sizes, or structural issues that need attention. We’ll give you a realistic timeline upfront and keep you updated if anything changes. Single-story homes with standard windows usually go faster than multi-story or homes with custom sizes. We don’t rush the job to hit an artificial deadline.
Double-hung vinyl windows handle Connecticut’s temperature swings and humidity well without constant maintenance. Casement windows seal tighter but have more moving parts. For energy efficiency, look for Low-E glass and quality weatherstripping – those features matter more than brand names. We avoid single-pane windows entirely and recommend double-pane minimum, triple-pane if your budget allows. The frame material matters too – vinyl expands and contracts less than wood in our climate.
Window replacement in Preston typically runs $400-800 per window installed, depending on size, style, and features you choose. Larger windows, custom sizes, or premium features like triple-pane glass cost more. We price by the job, not by the window, because installation complexity varies. Older Preston homes sometimes need extra work – sill repair, trim replacement, or structural adjustments that affect total cost. We’ll give you a detailed estimate that covers everything so you know what to expect.
Most window replacements in Preston don’t require permits if you’re replacing existing windows with similar sizes. If you’re changing window sizes, adding new windows, or doing structural work, then you need permits. We’ll tell you upfront if permits are required for your specific project and can handle the paperwork if needed. Preston’s building department is straightforward to work with, but it’s better to check first than deal with issues later. We know the local requirements and keep everything above board.
Our installation work is warrantied for two years – if something goes wrong with how we installed your windows, we fix it at no charge. The windows themselves carry manufacturer warranties that vary by brand, typically 10-20 years on materials and moving parts. We only work with manufacturers who honor their warranties and provide local support. If you have warranty issues down the road, we help coordinate with the manufacturer rather than leaving you to figure it out alone.
Yes, but we’re selective about timing and weather conditions. We won’t install windows during storms, extreme cold, or when precipitation is likely. Your home needs to stay weatherproof during installation, so we work efficiently and have everything ready before we remove your old windows. Winter installations sometimes take longer because we’re working around shorter daylight hours and weather windows. If conditions aren’t right, we’ll reschedule rather than compromise the installation quality or leave your home exposed.