
Hidden gaps in your walls, attic, and ceiling let hot outside air pour in all summer, forcing your AC to run nonstop. We find every leak and seal it - with before-and-after testing to prove the results.

Air sealing in Cudahy means finding all the small gaps, cracks, and penetrations in your home where outside air sneaks in - and closing them with foam, caulk, or weatherstripping - most single-family homes are completed in one day, and you can stay home the whole time.
Cudahy homes from the 1940s through 1960s were built before energy efficiency was a design priority. That means decades of original construction gaps - around plumbing chases, old electrical wiring, attic hatches, and recessed fixtures - that have never been addressed. In a climate where air conditioning runs from late spring through early fall, those gaps add up to a meaningfully higher electric bill every single month.
Air sealing and attic air sealing work together as part of a complete approach - sealing the attic floor stops the biggest single source of air movement in most homes, while whole-home air sealing closes the remaining gaps throughout the building envelope.
If your electricity bill spikes every summer even though you are keeping the thermostat at a reasonable setting, air leaks are a likely culprit. In Cudahy's climate, a leaky home forces your air conditioner to run longer and harder to compensate for the hot air constantly seeping in - and that shows up directly on your bill.
If one bedroom or hallway always feels warmer than the rest of your home no matter how long the AC runs, that room likely has more air leaks than others. This is especially common in older Cudahy homes where additions were built onto the original structure, creating seams and gaps between old and new construction.
Hold your hand near an electrical outlet on an exterior wall on a warm day - if you feel warm air coming through, that is a direct air leak. The same test works near your attic access panel. These are among the most common and most fixable leak points in homes built in the mid-20th century.
If you notice dust building up unusually fast around ceiling light fixtures, it is often a sign that air is being pulled through gaps in the ceiling from the attic above. Attic air in Cudahy carries dust, insulation particles, and outdoor pollutants - none of which you want circulating through your living space.
We start with a diagnostic test - a blower door setup that temporarily changes the air pressure inside your home to make leaks detectable. This step separates a thorough job from a contractor who sprays foam in a few obvious spots and calls it done. Once we know where the leaks are, we seal them with the right material for each location: foam for larger penetrations, caulk around framing and trim, and weatherstripping at movable joints. After the work is done, we run the diagnostic again so you can see the measurable improvement in writing.
Many homeowners pair air sealing with basement insulation for a more complete thermal envelope, or combine it with wall insulation for maximum comfort improvement. We can walk you through the right combination for your specific home after the initial assessment - and we only recommend what actually makes sense for your situation.
Best for homeowners who want a complete diagnostic and systematic sealing of all leak points throughout the building envelope - attic, walls, and floor.
Suited for homes where the attic floor is the primary source of air movement - closing gaps around ceiling fixtures, wiring, and framing before insulation goes in.
For homeowners who want to know how leaky their home is before deciding on next steps - the blower door test gives you a real number to work with.
For homeowners who want both services done together - sealing first, then adding insulation on top - which produces better results than either service alone.
Cudahy sits in the southeast Los Angeles basin, where summer temperatures regularly climb into the 90s and the air conditioning season stretches from late spring through early fall. Unlike homes in cooler climates where heating is the main concern, Cudahy homeowners are fighting heat gain almost constantly - which means air leaks cost real money nearly every month of the year. The city is also a compact, densely developed area where outdoor air quality can be a concern on high-pollution days. Gaps in your home's walls and ceiling pull in whatever air is outside - including dust, exhaust, and particulates from nearby roads and commercial activity - and sealing those gaps gives you more control over what you are actually breathing inside your home. The U.S. Environmental Protection Agency notes that sealing uncontrolled air leaks often improves indoor air quality because you stop pulling air from dusty attics and crawl spaces.
The same conditions affect neighbors throughout this part of Los Angeles County. Homeowners in Bell Gardens and Huntington Park deal with the same older housing stock and year-round cooling demands - and we serve both. California utility rebate programs through Southern California Edison and SoCalGas can help offset the cost, particularly when air sealing is combined with insulation work - something worth asking about before you schedule any project.
We will ask a few basic questions about your home - age, any problems you have noticed like high bills or uneven temperatures, and whether any prior work has been done. We reply within one business day and schedule an initial visit.
Before any work begins, we run a diagnostic test to locate leaks throughout your home - not just the obvious spots. This usually takes one to two hours, and you leave knowing exactly where your home is losing conditioned air.
After the assessment, you receive a written estimate explaining what will be sealed, what materials will be used, and the total cost. We also confirm whether you qualify for current utility rebates - you should not move forward without knowing that first.
The crew works through your attic, crawl space, and mechanical areas. Most Cudahy homes are done in a single day. After sealing, we run the diagnostic again so you have a before-and-after comparison in writing - not just our word for it.
Free diagnostic assessment. Written estimate. We flag any utility rebates you qualify for before you decide.
(213) 953-8081We run a diagnostic test before the work starts and again after it is done. You receive both results in writing so you can see the actual improvement - not just take our word for it. This is what separates a thorough air sealing job from a contractor who guesses and moves on.
Homes built in the 1940s through 1960s have specific leak patterns - original plumbing chases, knob-and-tube electrical pathways, and attic hatch details that a contractor unfamiliar with that era will miss. We work in these homes regularly and know where to look. The U.S. Department of Energy outlines common leak locations that apply directly to this era of construction.
Southern California Edison and SoCalGas both offer rebate programs for air sealing, particularly when combined with insulation upgrades. We confirm eligibility during the estimate visit and help you navigate the process - so you are not leaving money behind because of a paperwork technicality.
Every contractor doing this work in California must hold a valid license through the California Contractors State License Board. Ours is current and verifiable - you can check it in seconds at cslb.ca.gov. That matters because it means your project is done by someone legally accountable for the quality of the work.
Every job starts with a real diagnostic, every estimate is written, and every completed job is tested again so you know what you actually paid for. We serve Cudahy and the surrounding Southeast LA communities and stand behind the work on every project.
Insulate the rim joists and sub-floor after air sealing to complete the lower portion of your home's thermal envelope.
Learn MoreTarget the attic floor specifically - the single largest source of air movement in most older Cudahy homes.
Learn MoreCudahy's cooling season is long - the sooner your home is sealed, the sooner you stop paying to cool air that is leaking straight outside.