Attic air sealing in San Jacinto CA - fewer gaps between your rooms and the attic
Hot upstairs, drafty rooms or a power bill that keeps climbing? We find and seal the gaps in your attic floor before insulation goes in.
Get your attic checked before you insulate
Call (951) 292-7462 or send the form, and mention any gas furnace or water heater and any plans for new insulation, so I know what to look at first.
Is attic air sealing worth it for my San Jacinto home?
Attic air sealing in San Jacinto closes the openings in your attic floor around pipes, wires, lights, flues and the hatch, so the air you pay to heat and cool stays in your rooms. Done well, it saves energy, trims the power bill and helps keep moisture problems out of the attic.
Most people call because a room upstairs or the room over the garage won't stay comfortable, or because they're about to add insulation and want it done in the right order. Is it one room or the whole upstairs? What you pay turns on how many openings your attic has, how easy it is to crawl through, and whether flues, recessed lights or old attic flooring need extra work. The schedule turns on what I find up there, because I'd rather deal with a roof leak or a wiring problem first than seal over it, and your estimate is where your own price comes from.
Why San Jacinto homeowners call Advanced San Jacinto Insulation Company for attic air sealing
The owner comes out first
I usually come out for the estimate myself, and a lead installer runs the job once our crew starts. That way the person explaining your attic is the one who crawled through it.
Learned on San Jacinto attics
I grew up crawling through attics around San Jacinto on my dad's insulation crew, and I started this business in 2013. The houses here, and what tends to go wrong in them, aren't new to us.
Covered while we're in your attic
We're licensed and insured. When someone's kneeling on your ceiling joists beside wiring and hot flues, you want to know they're covered and answerable for the work.
If a room in your house won't stay comfortable, send us a note or call (951) 292-7462 and we'll set up a time to look.
How we handle attic air sealing
I go through the attic before we seal anything, looking for what has to be dealt with first, like live knob and tube wiring, the old cloth-covered kind on porcelain knobs, vermiculite fill, a bath fan blowing into the attic, a roof leak, an unvented gas fireplace or heater, or flooring laid over the joists. If one turns up, we stop and talk with you, and if it belongs to an electrician or a roofer, I'll tell you so. If your furnace or water heater vents up a natural-draft chimney and isn't getting its combustion air straight from outside, a mechanical or plumbing contractor adds that before we seal, because tightening the house around it can starve it of air. Then we run sealant along ceiling joints and small openings, close big holes with solid blocking, and fit hot flues with metal blocking and collars, since those pipes get too hot for foam or caulk. Some recessed lights get covers, and we leave the soffit, ridge and gable vents open on purpose so the attic keeps breathing.
Sealing, then a loose-fill top-up
This fits most attics where the ducts aren't up there, and it's what I usually recommend. We seal first, then blow in loose fill, insulation sent through a hose, as deep at the edges as in the middle and kept off the eave vents.
Foam when ducts run overhead
Foam costs more, but it seals and insulates in one pass, which earns its price when your heating and cooling ducts sit in the attic. Anywhere else, sealing plus a top-up usually gets you there for less.
How can you tell your attic is leaking air?
Hot rooms upstairs
Rooms under the attic run hotter or colder than the rest of the house. Attic air is usually slipping in around lights and pipes, and your system runs longer every day it does.
Dark streaks on the ceiling
Gray lines around vents, light fixtures or along ceiling edges are dust filtered out of air moving through a gap. Paint covers them, but the leak keeps going until it's sealed.
Air around the attic hatch
If you feel a draft or see light around the hatch, there's usually no seal on it. It's often one of the larger openings, and new insulation won't stop air moving through it.
Musty smell or dark framing
A damp smell up there or darkened wood near the roof can mean warm house air is leaking into the attic and leaving moisture behind. Left alone, that moisture works on the framing.
What happens after you call about attic air sealing in San Jacinto?
Call and walk the attic together
I come out, go through your attic with you and show you photos of what I find. The written estimate lists each step in the order it should happen.
Our crew seals the gaps
A lead installer runs the job, working in the order your estimate lays out. Clear a path to the attic hatch so we're not moving your things.
Walk through the finished attic
Before we leave, I walk you through the finished job so you can see what we sealed and where. Ask anything you want while we're still there.
Questions about sealing your attic
These are the questions we hear before anyone goes up into an attic. If yours isn't here, call and ask, and I'll tell you what I'd check in your house.
How much does attic air sealing cost in San Jacinto?
Across the US, professional attic air sealing usually runs about $250 to $750 per job, and that's a national figure for the sealing itself, not a price for your house. Complex attics, testing, added insulation and repair work can add substantially to it, so the estimate I write after going through your attic is where your own number comes from.
Should I seal my attic before adding insulation?
Yes, the sealing goes in right before the insulation. The usual order is safety checks and attic ventilation first, then sealing, then insulation, because once new insulation is down the gaps are buried and hard to get at. If you're planning both, we schedule them back to back.
Do I need a permit for attic air sealing in San Jacinto?
The city decides that, so it's worth asking before work starts. San Jacinto's Building and Safety Division processes permit applications, all of them online, and inspects construction projects in the city. If your job needs one, we pull it, set up the inspections and walk you through what the city asks for.
Does a contractor need a license to do attic air sealing in California?
Usually, yes. The state licensing board requires a license when a job needs a building permit, uses any additional workers, or totals $1,000 or more in labor and materials, and any job done by a crew meets the second of those on its own.
How do I tell if attic air sealing worked?
A blower door test, a fan set in an outside door that pulls air through the house, may help show whether the duct and flue openings to the attic were sealed. It's part of a whole-house energy test, so ask whether it's included before the job starts.
How do I get help paying for attic air sealing in Riverside County?
Start by asking two programs about eligibility. Community Action Partnership of Riverside County offers free energy efficiency upgrades to low-income households in the county, and Southern California Edison's Energy Savings Assistance Program may offer free weatherization to owners or renters, though it isn't available in all areas and restrictions may apply. Neither lists attic sealing by name, so ask what your house might qualify for.
Get your attic air sealing estimate
Tell us about the rooms that bother you and anything you've noticed in the attic, and we'll reply within one business day. I'll come out for a free on-site estimate, and there's no pressure to book.
Attic sealing work up close
Work that often goes with sealing
Retrofit insulation
If the insulation in an older attic has settled thin over the years, topping it up right after the sealing finishes the job while we're already up there.
Learn moreSpray foam insulation
Worth a look for the room over the garage or an attic crowded with ductwork, where foam can close the gaps and insulate at the same time.
Learn more