Around recessed can lights
Older can lights are open holes into the attic, and insulation piled over them only filters the draft. We seal around each one in a way that suits the fixture, then cover it.
Air sealing services in Corona CA - rooms that keep the air you pay to heat and cool
Hot upstairs rooms, drafts and a power bill that keeps climbing usually trace back to gaps in the attic. We find them and seal them.
- Fully licensed and insured.
- Free quotes on site.
- Replies within 1 business day.
What air sealing does for your house
Air sealing services in Corona, CA close the cracks, holes and gaps between your attic and the rooms below, so the air you pay to heat and cool stays in the house and moisture stops riding up with it.
You've probably noticed it as a room that never cools, a draft near the hall ceiling or a power bill that doesn't match the thermostat. The price mostly moves with how much old insulation sits on top of the gaps, how many can lights, pipes and wires go through your ceiling and how easy the attic is to crawl around in. The schedule turns on whether we're insulating right after and what turns up once the old material is pulled back. I put your own price on the estimate after I've been up there, and we do this work in Corona and the cities around it, from Riverside and Jurupa Valley to Chino Hills, Pomona and Yorba Linda.
I look before I quote
I come out myself and go up with a flashlight to find where air is really getting through, so the fix matches your problem and not whatever's easiest to sell.
A lead installer on every job
I write the estimate, and our installers do the work with a lead installer running each job, so someone on site knows exactly what I found and what you agreed to.
Licensed, insured and explained
We're fully licensed and insured, and we leave you knowing what we sealed well enough to explain it to whoever works on your house next. Your satisfaction, guaranteed.
How we seal an attic, step by step
I start in your attic, checking how many inches of old insulation are already up there, whether any of it got soaked or filled with droppings, and where the gaps line up with the rooms you're complaining about. On the way through the house I'll show you the simple leaks you can close yourself, since there's no reason to pay us for those. The attic is ours, because that's where the hard-to-find gaps hide. Our installers pull back the old material, seal the gaps underneath, clear out anything that shouldn't stay and lay the insulation back level, as deep at the edges as in the middle.
For most attics, sealing plus a top-up of loose fill is the better buy, because closed-cell foam insulation costs more even though it seals and insulates in one pass. I lean toward foam when your ductwork lives up there, since keeping that space closer to room temperature helps the ducts too. If air is also coming up from below, basement insulation closes off that end of the house, and I'll tell you on the visit whether it's worth doing.
The gaps we look for in an attic
Pipes, wires and wall tops
Every pipe and wire that runs up through the top of a wall leaves a gap around it. We seal those before insulation goes back, so it isn't fighting a draft all summer.
The attic hatch
A hatch with no seal and no insulation on its lid leaks cooled and heated air all year. We seal the edges and insulate the lid so the way in doesn't become the way out.
Vents we leave open
Eave, ridge and gable vents are supposed to move air, so we keep them clear. When insulation buries the eaves, the attic stops breathing and moisture starts showing up in the framing.
Get a free estimate for sealing your attic
Send the form and we'll reply within one business day to set a time. Then I come out, look at the attic and write up a free estimate, with no pressure to book.
Your home's age
Tell us roughly when your house was built, because the age hints at what's waiting in the attic, from the kind of old insulation to the type of lights cut into the ceiling.
Where the attic access is
Let us know whether the hatch is in a closet, the garage or a hallway ceiling, so I can plan how to get up there without you moving half your stuff.
What runs on gas
List the furnace, water heater, dryer or anything else that burns gas. A tighter house changes how those appliances behave, so I want to know about them before we seal anything.
Air sealing examples to talk through
These photos show common attic gaps, sealed hatches and cleared eaves, so you can point to whatever looks most like your attic.
Air sealing questions from Corona homeowners
These are the questions people in Corona ask most before they let anyone seal their attic, with straight answers.
Can I seal my attic myself instead of hiring someone?
You can seal the obvious leaks yourself, like around door frames and where pipes, vents and wires pass through outside walls. The attic is the part worth hiring out, because in an existing home its small leaks hide under the insulation and are hard to find. That's where a crew earns its money.
Should air sealing be done before adding attic insulation?
Yes, the sealing gets finished first, because that's how you get the most energy savings out of the insulation. If you're adding insulation, plan both as one project, so the gaps get closed while the attic floor is open and nobody has to dig through new material later.
Is it safe to air seal a house with a gas furnace or water heater?
It is, as long as the gas appliances vent properly, because a tighter house gives carbon monoxide more chance to build up when they don't. The usual advice is to have a heating and cooling tech check the furnace, water heater and dryer for proper venting, so we suggest booking that check with the job.
How do contractors find hidden air leaks in an attic?
Certified home energy assessors use a blower door test, a fan that pulls air through the house's leaks, along with thermal camera images to find them. It's fair to ask whether those tests are part of a visit. When I come out, I go up with a flashlight and read the dark streaks insulation picks up where air has been moving through it.
Is there free air sealing help for low-income households in California?
Yes, if your household meets the CARE or FERA income limits, California's Energy Savings Assistance program provides no-cost weatherization. That covers weatherstripping, caulking, and repairs to doors and the outer shell of the house that cut down on drafts. It's worth checking before you pay anyone, and we're glad to look at your attic either way.
Get your attic gaps found and sealed
Call (951) 393-1170 any day, early morning through late evening, or send the form whenever you think of the room that won't cool.