Solar & Energy Efficiency · Property Services
Weatherization & Air Sealing Package
Air leaks make a house drafty and wasteful. Warm air escapes in winter and hot air enters in summer, and your heating and cooling systems work harder to compensate. Sealing leaks is among the most cost-effective efficiency upgrades. NorTech connects you with vetted insulation pros who set their own price and find the leaks that matter.
Need more hands? Pick a company that sends crews and choose how many technicians. Want a second pro for a different job? Add one right after you book.
Finding the leaks that cost you the most
The biggest leaks are often hidden: gaps around attic hatches, recessed lights, wire and pipe penetrations, the tops of interior walls and the rim joist in the basement or crawlspace. A blower door test depressurizes the house to reveal leaks, and a thermal camera shows where cold air enters. The pro prioritizes the largest holes first, since sealing them yields the greatest savings and comfort improvement. Walk the house on a windy day with a stick of incense or a candle near suspect spots, and tell the pro where you feel drafts so they can check those areas first.
Sealing methods and materials
Pros use caulk, spray foam, rigid foam board and gaskets, matched to the gap and the temperature of the location. Fire-rated materials are used near flues and chimneys. Doors and windows are weatherstripped, and attic hatches are insulated and gasketed. Sealing must be balanced with ventilation, because a very tight house needs adequate fresh air and combustion safety. The pro checks gas appliances and exhaust fans after sealing. Ask the pro to photograph each sealed area, and to describe materials used around chimneys, flues and recessed lights where heat and fire safety matter.
Results, rebates and combining upgrades
After sealing, a follow-up test shows how much leakage was reduced. Savings vary, but many homes see noticeable comfort improvements. Utility and government programs sometimes subsidize weatherization. Air sealing works best with added insulation and duct repairs, so ask the pro about a combined plan. Ask for a short list of the next steps, such as added insulation or duct repair, so the sealing work becomes the first part of a longer plan. Ask for the before and after leakage numbers in writing, and keep them with your utility bills so you can compare comfort and cost over the next year.
When to book weatherization & air sealing package
Frequently asked
Weatherization & Air Sealing Package — common questions
Didn’t find your answer? Nova, our AI assistant, is in the chat bubble in the bottom-right corner and can help anytime.
What homeowners say
Weatherization & Air Sealing Package reviews
Verified reviews from every city where NorTech connects customers with providers will appear here.
Be the first weatherization & air sealing package review
Your pro backs the work with a workmanship warranty — if covered work is not right, your pro makes it right, free. Book with confidence and tell the Bay Area how your pro did.
Book Weatherization & Air Sealing PackageCheck your coverage
Is Weatherization & Air Sealing Package available near you?
NorTech connects you with vetted local providers for weatherization & air sealing package. Enter your ZIP to check coverage and see your price.
Enter your ZIP code and we’ll point you to your local hub.
Explore more
Related home services
Homeowners who book weatherization & air sealing package often need a hand elsewhere too. Browse related NorTech services — pricing set by local pros, vetted local providers, and a guarantee or warranty suited to each service.
Rooftop Solar Panel Installation
Rooftop solar panel installation by a licensed solar contractor: system design, permits, utility…
Learn moreSolar Panel Removal & Reinstall for Roofing
Detach and reset of solar panels for roof replacement or repair by a licensed solar contractor:…
Learn moreSolar Panel Repair & Inverter Replacement
Solar panel repair and inverter replacement by a licensed solar contractor: diagnosing low produ…
Learn moreSolar Attic Fan Installation
Solar-powered attic fan installation by a roofing or solar pro: a self-powered vent that cools t…
Learn moreSolar Pool Heating Installation
Solar pool heating installation by a licensed contractor: roof or ground collectors, plumbing, c…
Learn moreHeat Pump Water Heater Installation
Heat pump water heater installation by a licensed plumber: efficient electric hot water, with ve…
Learn moreHeat Pump HVAC Conversion
Converting a gas furnace and air conditioner system to an electric heat pump HVAC system by a li…
Learn moreTankless Water Heater Installation
Tankless water heater installation by a licensed plumber: gas or electric on-demand hot water, w…
Learn moreInduction Cooktop & Kitchen Electrification
Induction cooktop installation and kitchen electrification by a licensed electrician: new circui…
Learn moreBook in minutes
Ready to book weatherization & air sealing package?
Choose a background-checked local provider, see your price the moment you enter your ZIP, and lock in a time that works — backed by your pro’s 60-day workmanship warranty.
Prefer to compare bids yourself?Get quotes from independent local contractors — you pick who does the work.Compare →