Older Tahoe cabins and A-frames leak conditioned air through dozens of small gaps your furnace pays for all winter. We find and seal those gaps so your home holds heat - and keeps smoke out during fire season.
Air sealing services in South Lake Tahoe locate and close the gaps, cracks, and penetrations where outside air enters and conditioned air escapes - most single-family homes are fully sealed in one day using foam, caulk, and weatherstripping applied primarily in the attic and crawl space.
Air sealing is not the same as insulation. Insulation slows heat transfer through a material; air sealing stops air movement through openings entirely. A home can have plenty of insulation and still be very leaky - and a leaky home in South Lake Tahoe pays a steep price, because the temperature difference between inside and outside is extreme for so many months of the year. Many South Lake Tahoe homes are older cabin-style or A-frame designs that were never built with airtightness in mind.
Most homeowners in South Lake Tahoe pair air sealing with basement insulation or attic insulation in the same project - the two services address different problems and work better together than either does alone.
If your gas or electric bill jumps sharply from October through March and seems high compared to similar-sized homes nearby, air leaks are a likely culprit. South Lake Tahoe winters are long and cold, and a leaky home forces your furnace to run almost constantly to keep up with the heat escaping through gaps.
Stand near the baseboards or in the corners of your rooms on a cold day and pay attention to whether you feel moving air. Drafts at floor level often mean air is entering through the foundation or crawl space. Drafts near the ceiling can mean the attic boundary is not sealed. In South Lake Tahoe homes built before 1980, both are common.
During smoke events - which have become a regular summer reality in the Tahoe basin - if you can smell smoke inside your home with all windows and doors shut, outside air is finding its way in through gaps in your building envelope. This is a clear sign your home needs air sealing, and it is a problem that goes beyond comfort into genuine health territory.
If you open your attic access panel in January and see frost or condensation on the back of the door or nearby framing, warm moist air from your living space is escaping into the cold attic. This is both an energy loss and a moisture problem that can eventually damage your roof structure - one of the clearest signs the attic boundary needs to be sealed.
We start every air sealing project with a blower door test - a large fan mounted in an exterior doorway that measures exactly how leaky your home is. That number gives you a clear before-and-after comparison so you can see the actual improvement, not just take our word for it. We then seal the attic floor, crawl space rim joists, and all major penetrations using foam and caulk appropriate for each location. For homes with wood stoves or fireplaces, we assess ventilation needs and flag whether mechanical ventilation is appropriate before finalizing the scope. Many homeowners combine air sealing with our attic air sealing service for a more targeted treatment of the ceiling plane - one of the biggest sources of heat loss in older Tahoe homes.
Homeowners who want to address energy loss and drafts throughout the full building envelope often pair air sealing with basement insulation to close off the cold floor plane as well as the attic. We can assess both areas in a single visit and give you a combined quote if that scope makes sense for your home.
The most thorough approach - we test before and after so you have documented proof of the improvement, which you will need for Liberty Utilities rebates and the federal tax credit.
Ideal for South Lake Tahoe homeowners doing a full energy upgrade - sealing and insulating in one project costs less and delivers better results than scheduling each separately.
For homes where the attic is the primary source of heat loss and smoke infiltration - we focus on the ceiling plane, sealing around recessed lights, pipes, and framing penetrations.
A good fit for homes with cold floors and moisture concerns - the rim joist is one of the leakiest spots in a typical Tahoe home and one of the most cost-effective places to seal.
At 6,200 feet elevation with winter temperatures that regularly drop into single digits, South Lake Tahoe puts more pressure on a leaky home than almost anywhere else in California. Heated air escapes faster when the temperature differential between inside and outside is severe, and it stays that way for months. A large share of the area's housing stock consists of vacation cabins and A-frames built in the 1950s through 1970s - homes that were not designed for year-round occupancy and have never had energy upgrades. The U.S. Environmental Protection Agency notes that controlled ventilation matters in tightly sealed homes - something we account for in every project, especially for properties with wood stoves. We serve homes throughout the basin, from neighborhoods in Kingsbury to hillside properties in Skyland.
Wildfire smoke has made air sealing a health and safety concern as well as an energy one. The Caldor Fire evacuation in 2021 brought home how real the smoke risk is for Tahoe basin residents. A well-sealed home gives your family a much more effective refuge during heavy smoke days - reducing the outdoor air that seeps in through the attic, crawl space, and wall penetrations even when every door and window is shut. Liberty Utilities, which serves much of South Lake Tahoe, offers rebates for qualifying air sealing work that can meaningfully offset your out-of-pocket cost when combined with the federal tax credit.
We reply within one business day. You tell us your home's age, what problems you have been noticing, and whether you have had any prior energy work done. That helps us come prepared for the assessment.
We mount a large fan in a doorway and measure exactly how leaky your home is - the result is a specific number you keep. We also walk the attic and crawl space to identify the biggest sources of leakage. The visit takes about an hour.
The crew closes the gaps found during the assessment using foam and caulk appropriate for each location. Most jobs are done in a single day. You will hear some noise and notice a mild foam smell for a few hours, but you can stay home throughout.
We run the blower door test again after the work and give you the before-and-after numbers in writing. If you are applying for a Liberty Utilities rebate or the federal tax credit, we provide the documentation you need to claim both.
No commitment required. We test your home, show you where the leaks are, and give you a written quote before any work begins.
(530) 307-5986Every project starts and ends with a blower door test. You receive the before-and-after numbers in a written report, which you can use for rebate applications and as documentation that the work delivered what was promised. No test, no proof.
Cabin-style and A-frame homes built in the 1950s through 1970s have specific leakage patterns around fireplace chases, attic kneewall joints, and foundation mudsills. We come prepared for what we are likely to find in homes of that era - not guessing on the day of the job.
We provide the blower door test results and project documentation you need to apply for Liberty Utilities energy efficiency rebates and the federal tax credit. A contractor who cannot provide that paperwork means you leave money on the table.
We hold the California C-2 Insulation and Acoustical Contractor license required for this work in the state. You can verify our license status on the California Contractors State License Board website before you hire - a check that takes less than two minutes.
The combination of verified results, local construction knowledge, and rebate support is what separates a thorough air sealing job from one that just looks complete. The Building Performance Institute sets the training and standards that guide our assessment and sealing process - and we follow them on every project, not just the ones where a rebate program requires it.
Insulate the basement or crawl space floor plane to address cold floors and moisture concerns that air sealing alone does not solve.
Learn MoreA targeted treatment of the ceiling plane - sealing around recessed lights, pipes, and framing that let attic air push into your living space.
Learn MoreSouth Lake Tahoe contractors book fast in September and October - schedule your free air sealing estimate now before the pre-season rush fills the calendar.
