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Serving Norwich, CT and surrounding areas. (959) 234-0488
Most homes lose a surprising amount of heat through invisible gaps - not windows. We find and seal those gaps so Norwich homeowners stay comfortable and pay less to heat their homes.
Air sealing services in Norwich, CT find and close the hidden gaps, cracks, and openings where outside air enters and conditioned air escapes, and most jobs for a single-family home are completed in one to two days with minimal disruption to your daily routine.
Insulation slows the movement of heat through surfaces - but air sealing stops the movement of air through gaps. Both matter. A home can have decent insulation and still lose a significant amount of heat through unaddressed gaps around pipes, recessed lights, and where walls meet the attic floor. In older Norwich homes, those gaps tend to accumulate over decades of renovations and settling.
Air sealing pairs naturally with basement insulation - the basement rim joist is one of the most common sources of air leaks in older New England homes, and addressing both in the same project gets the most out of your investment.
If your winter heating costs seem out of proportion to your square footage - or have crept up over the years without an obvious reason - air leaks are one of the most common culprits. Norwich winters are long and cold, and a leaky home works your heating system much harder than it needs to. If neighbors in similar-sized homes pay noticeably less, that gap is worth investigating.
Hold your hand near an electrical outlet on an exterior wall on a cold day. If you feel cool air, that outlet is connected to a gap running to the outside. The same test works near baseboards and recessed ceiling lights. These are classic signs of air leaks in the age of home common throughout Norwich.
If one room is always colder in winter or stuffier in summer no matter how you adjust the thermostat, that room likely has more air leaks than the rest. In older Norwich homes, this often shows up in rooms above garages, finished attic spaces, or additions built at a different time than the original structure.
Condensation on the inside of windows in winter, or a persistent musty smell in your attic or basement, can both indicate that humid air is moving through gaps and hitting cold surfaces. Given Norwich's location near the river valleys and the humidity swings that come with it, this pattern is worth taking seriously before it leads to mold or wood rot.
Every job starts with a blower door test - a large fan temporarily installed in an exterior doorway that creates a pressure difference and makes air leaks easy to locate. This is how we find the gaps you cannot see: around pipes entering the basement, where attic framing meets exterior walls, and above recessed lights. Without this test, any sealing work is guesswork. Once we know where the leaks are, we use the right material for each gap - caulk for small cracks, spray foam for larger openings around pipes and framing. We also offer attic air sealing as a dedicated service, since the attic floor is where the biggest leaks tend to hide in older homes.
We finish every air sealing job with a second blower door test to measure the actual improvement - not just confirm the work was done. You leave with real numbers showing how much tighter your home is than when we started. We pair air sealing with basement insulation whenever the rim joist and foundation areas need both treatments, since doing them together is more efficient and more effective.
Ideal for older homes that have never had an energy audit - a comprehensive treatment that targets every major leak source from attic to basement.
Focuses on the attic floor, where warm air most often escapes into unconditioned space - particularly effective before adding attic insulation.
Targets the rim joist - the band of framing just above the foundation - which is one of the highest-impact areas to seal in older New England homes.
Combines sealing and insulation in one project visit - the most efficient way to address both problems and maximize the return on your investment.
Norwich sits at the confluence of the Yantic, Shetucket, and Thames rivers, and the surrounding area experiences meaningful humidity swings between seasons. Uncontrolled air leaks in this climate do not just let heat escape - they also carry humid summer air into cool wall cavities and attic spaces, where it condenses and can quietly cause moisture damage or mold over time. Older Norwich homes - many built before 1960 with wood-frame construction that has settled and shifted through decades of renovations - tend to have far more gaps than their owners realize. Each plumbing update, electrical panel replacement, or addition that was added over the years left new penetrations behind. We regularly see these issues across Norwich neighborhoods as well as in nearby Montville and Colchester, where the housing stock has similar histories.
Norwich is also served by Eversource and the state-backed Energize CT program, which means many homeowners can access subsidized air sealing through the Home Energy Solutions audit - sometimes at a fraction of the open-market price. If you have not looked into this program, it is worth a few minutes before you get any quotes. You can learn more at energizect.com. We also encourage homeowners to verify any contractor's Connecticut Home Improvement Contractor registration on the state licensing portal before hiring.
We ask about your home's age, size, and what has been prompting your concern. We reply within one business day and schedule an assessment at a time that works for you - either a separate visit or a combined assessment-and-work appointment.
Before any sealing work begins, we run a blower door test to locate the leaks - not just apply materials to obvious spots. The assessment takes one to two hours. You receive a written estimate explaining where the leaks are, what will be done, and the total cost, including any Energize CT rebates you may qualify for.
Most sealing work happens in the attic and basement, so your living space sees very little disruption. You can stay in the house throughout. A typical Norwich home takes one full day; larger homes or those with many problem areas may take two days.
We run the blower door test again after the work is complete to confirm the leaks were actually reduced - not just patched over. You receive a written summary of the before-and-after results. No guesswork, no taking our word for it.
No obligation, no pressure. We run the test, explain what we find, and give you a written quote before any work starts.
(959) 234-0488A contractor who skips the blower door test and just applies caulk around visible gaps is guessing. We run the test before work begins to find the leaks and again after to confirm the improvement. You get documented before-and-after results, not just a receipt. The Building Performance Institute sets the standard for this kind of systematic, test-based approach.
Many Norwich homeowners don't realize how much the Energize CT program can reduce their out-of-pocket cost for air sealing. We factor rebate eligibility into every estimate so you see the real number before you decide - not after. We also assist with the paperwork where possible.
Sealing a home too tightly without accounting for ventilation creates indoor air quality problems. We ensure your home has enough fresh air coming in through controlled pathways after every sealing project - so you get a tighter home without a stuffy one.
Norwich's location near the Shetucket, Yantic, and Thames rivers means humidity is a real seasonal factor. We seal in a sequence that accounts for how moisture moves through your home, protecting your attic and wall cavities from the condensation problems that can develop in this climate when air sealing is done without considering vapor movement.
Our approach is systematic and documented - we do not guess at what your home needs, and we do not consider the job done until the numbers confirm it. That combination of testing, local knowledge, and honest pricing is what keeps Norwich homeowners calling us back.
Insulate the rim joist, foundation walls, and floor above to stop cold from entering at the lowest level of your home.
Learn MoreDedicated sealing of the attic floor - the single highest-impact area in most older Norwich homes.
Learn MoreFall appointments fill quickly - lock in your slot before the heating season starts and feel the difference by your first billing cycle.