Window Installation in Old Mystic, CT

Windows That Actually Lower Your Bills

Professional installation, energy-efficient options, and honest pricing from Old Mystic contractors who get it right.

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Energy Efficient Window Replacement

What Better Windows Actually Mean

Your heating and cooling bills drop. Those drafty spots by the windows disappear. The house stays comfortable without cranking the thermostat.

You stop hearing every car that drives by. Your furniture doesn’t fade from UV damage. And when it’s time to sell, buyers notice the quality.

New windows aren’t just about looks. They’re about making your home work better for you every single day.

Old Mystic Window Company

We Know Connecticut Windows

Sullivan Contracting has been installing windows in Old Mystic and surrounding Connecticut communities for years. We understand what works in our climate and what doesn’t.

Our team knows the challenges of coastal weather, from nor’easters to humid summers. We’ve worked on everything from historic colonials to modern builds.

When you call us, you’re working with contractors who live here too. We stand behind our work because we’ll see you at the grocery store next week.

Window Installation Process

How We Handle Your Installation

First, we come out to measure and assess your current windows. We’ll discuss your goals, whether that’s energy savings, noise reduction, or just better-looking windows.

Next, we provide a detailed estimate with no surprises. Once you approve, we order your windows and schedule installation around your timeline.

Installation day, we protect your home’s interior, remove old windows carefully, and install new ones with proper sealing and insulation. We clean up completely and walk through everything with you before we leave.

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New Windows Old Mystic

What You Get With Our Service

Every window installation includes proper measurement, professional installation, and complete cleanup. We handle permits when needed and work with quality manufacturers who back their products.

You’ll get windows sized exactly for your openings, not forced to fit. We seal everything properly to prevent air leaks and water infiltration. All hardware is installed and adjusted so your windows operate smoothly.

Our installations come with warranty coverage on both the windows and our workmanship. If something isn’t right, we come back and fix it.

How long does window installation take in Old Mystic?

Most residential window installations take one to two days, depending on the number of windows and any complications we encounter. We can typically install 8-12 windows per day with our crew. If we’re replacing windows in an older home, we might need extra time to address framing issues or make adjustments for proper fit. We’ll give you a realistic timeline during our initial consultation and keep you updated if anything changes during the project.

What types of windows work best in Connecticut weather?

For Connecticut’s climate, we recommend double or triple-pane windows with low-E coatings and argon gas fills. Vinyl and fiberglass frames handle our temperature swings better than wood without the maintenance requirements. In coastal areas like Old Mystic, you want windows that can handle salt air and high winds. We typically suggest double-hung or casement windows for most homes, but the best choice depends on your specific situation and architectural style.

How much can new windows save on energy bills?

Most homeowners see 10-25% reduction in heating and cooling costs with quality window replacement, though savings depend on your current windows and home insulation. If you’re replacing single-pane windows or windows with broken seals, you’ll see the biggest difference. In Connecticut, where we use both heating and cooling systems heavily, efficient windows can save $200-500 annually on energy bills. The exact savings depend on your home’s size, current windows, and energy usage patterns.

Do you handle permits for window replacement in Old Mystic?

Most window replacements don’t require permits in Old Mystic if we’re replacing existing windows with similar sizes. However, if we’re changing window sizes or doing structural work, permits may be needed. We handle permit applications when required and know the local building codes. For homes in historic districts, there may be additional requirements about window styles and materials. We’ll let you know during our consultation if permits are needed and take care of the paperwork.

What warranty comes with your window installation?

Our window installations include manufacturer warranties on the windows themselves, typically 10-20 years depending on the brand and model you choose. We also provide a workmanship warranty on our installation, covering issues like air leaks, water infiltration, or operational problems caused by improper installation. If you have problems with how the windows were installed, we come back and fix it at no charge. We’ll explain all warranty terms before you sign anything.

Can you match windows to my home's architectural style?

Yes, we work with manufacturers who offer windows in various styles to complement different architectural periods. For Old Mystic’s historic homes, we can source windows with traditional profiles, divided lights, and appropriate hardware while still providing modern energy efficiency. We understand that maintaining your home’s character is important, especially in historic neighborhoods. During our consultation, we’ll show you options that balance historical accuracy with performance and help you choose windows that enhance rather than detract from your home’s appearance.

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