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Serving Cerritos, CA and surrounding areas. (626) 517-0609
Hidden gaps in your attic floor let cool air escape and hot attic air push in. Sealing them keeps your Cerritos home comfortable all summer and lowers your electricity bill.
Attic air sealing in Cerritos means finding and plugging every gap, crack, and opening in your attic floor - around light fixtures, plumbing pipes, and the tops of interior walls - so your conditioned air stays inside and hot attic air stays out. Most jobs are completed in a single day with no disruption to your living space.
This is different from adding insulation. Insulation slows heat transfer, but it cannot stop air from moving through gaps. Air sealing addresses the gaps directly, and when the two are done together the results are far better than either alone. Cerritos homes built in the 1960s and 1970s were constructed with very little attention to air leakage, and decades of settling have only widened those original gaps. If you have been living with rooms that never quite cool down, or a Southern California Edison bill that climbs every summer, those gaps are almost certainly part of the reason. Many homeowners pair this service with whole-home air sealing services to address leakage throughout the building, not just in the attic.
If bedrooms directly below the attic stay noticeably warmer than the rest of the house during Cerritos summers, hot attic air is likely pushing down through gaps in the ceiling. This is one of the most common complaints in the 1960s and 1970s tract homes that make up most of Cerritos. It is not a sign your air conditioner is failing - it is a sign conditioned air is escaping before it can do its job.
If your SCE bill jumps sharply from May through September and stays elevated even when you are careful about thermostat settings, your home is likely losing conditioned air faster than it should. A home with well-sealed attic penetrations holds its temperature longer, which means the AC cycles on less often. High cooling costs in a home that is 40 or more years old are almost always a sign that air sealing has never been done.
Stand under a recessed light or ceiling fan on a warm day and hold your hand near the fixture. If you feel warm air coming through, that fixture is connected directly to your attic through an unsealed gap. This is extremely common in older Cerritos homes and is one of the easiest signs to check yourself without any tools.
Attic air carries fine particles - dust, insulation fibers, and in homes with pest activity, other debris. If surfaces in your home collect dust quickly no matter how often you clean, some of that dust is likely coming from above. Sealing the attic floor cuts off that pathway and often produces a noticeable improvement in indoor air quality.
We start every job with a thorough assessment of your attic - inspecting every penetration in the attic floor, from recessed lights and ceiling fans to plumbing pipes, wiring runs, and the tops of interior walls. Where helpful, we use a blower door test to measure exactly how leaky the home is before we start and confirm the improvement when we finish. We document every gap we find and seal, so you have a written record of what was addressed. Many homeowners also pair this work with retrofit insulation to add depth over the sealed attic floor, since air sealing and insulation work best together.
The U.S. Department of Energy identifies attic air sealing as one of the highest-return energy efficiency improvements available to homeowners. For Cerritos homes that have never had this work done, the gap between current performance and what is achievable is often significant - meaning the results are more noticeable here than in newer construction.
Suits most Cerritos homes - foam and caulk seal every gap in the attic floor, stopping conditioned air from escaping and hot attic air from pushing in. The most direct fix for rooms that stay too warm in summer.
Suits homeowners who want measurable results - a pressurized fan test identifies exactly where air is escaping before and after the work, giving you a verified number showing the improvement.
Cerritos was developed almost entirely between the late 1950s and the early 1980s, which means most of its housing stock is 40 to 65 years old. Homes built during that period were not designed with energy efficiency in mind, and the original construction left gaps around every pipe, wire, and light fixture that passes through the ceiling. Decades of settling have only widened those gaps. The cooling season in Cerritos also stretches from May through October - roughly half the year - so every gap in your attic floor is costing you money across that entire stretch. Air sealing delivers faster payback here than it would in a milder climate because the demand on your HVAC system is so consistent and prolonged. Homeowners in neighboring Norwalk and Buena Park deal with the same combination of aging housing stock and long cooling seasons.
The warm, dry climate of the Los Angeles Basin also makes attics attractive to rodents, and Cerritos homes with mature landscaping see their share of rodent intrusion. Pest activity can damage insulation and create new gaps that undermine air sealing work. A responsible contractor will flag any signs of pest activity before sealing - because sealing over active pest damage without addressing it first is a waste of money and can trap odors inside the home. California's Title 24 building energy standards also apply to any permitted work, setting a clear quality baseline that protects your investment.
Call or submit a request online and we will ask a few quick questions about your home - age, comfort problems, and whether you have existing attic insulation. We reply within one business day and can typically schedule an assessment within a week or two.
A technician visits your home, goes into the attic, and inspects every gap and penetration. We may use a blower door test to measure air leakage precisely. The visit takes one to two hours, and you receive a written estimate the same day or within 24 hours - no vague ranges.
The crew works methodically across the attic floor, sealing every gap with foam or caulk depending on the size and location of each opening. For a typical Cerritos home, the sealing work takes four to eight hours - most jobs finish in a single day with no mess left in your living space.
When the work is done, we walk you through what was found and sealed - often with photos taken in the attic. If you are applying for a Southern California Edison rebate or federal tax credit, we provide all the documentation you need to file. Most homeowners notice a comfort difference within the first few days.
Free written estimate. No pressure. We respond within one business day.
(626) 517-0609The majority of our work is done in homes built between the 1950s and 1980s - exactly the era that dominates Cerritos. We know where the gaps hide in that construction style and we do not miss the spots that less experienced crews overlook, like the tops of interior walls and the area around older recessed fixtures.
We can run a blower door test before and after the job, giving you a verified measurement of how much the air leakage improved. The Building Performance Institute trains and certifies technicians on exactly this kind of whole-home diagnostic - a credential that signals the work is being done to a recognized standard, not guesswork.
Southern California Edison offers rebates for qualifying air sealing work, and we know the documentation requirements. Homeowners who work with us walk away with everything they need to file a rebate claim - the right paperwork, the right description of work, and clear guidance on submission deadlines so the incentive does not go unclaimed.
Cerritos attics see real rodent pressure, and sealing over active pest damage traps odors and undoes the work. We flag any signs of pest activity before we seal anything and will tell you honestly when addressing that problem first is the right call - even if it means a second visit rather than rushing the job.
We combine genuine familiarity with Cerritos housing stock, access to diagnostic equipment, and working knowledge of the local rebate landscape. That combination means you get results you can verify and savings you can actually claim.
Add insulation depth over a freshly sealed attic floor for maximum comfort and energy savings in older Cerritos homes.
Learn MoreWhole-home air sealing addresses leakage throughout the building envelope, not just the attic floor.
Learn MoreCerritos summers are long and intense. Get your home sealed now and feel the difference before the heat peaks - free written estimate included.