Air sealing services in Perris CA - a home that keeps the cool air you paid for
Drafty rooms, a hot upstairs and a power bill that keeps climbing usually trace back to hidden leaks we can find and close.

- Licensed and insured.
- Free on-site estimates.
- We respond within 1 business day.
Do I need air sealing if my house feels drafty?
Air sealing services in Perris close the gaps where outside air slips into your house, around pipes, wires, light fixtures and the attic hatch, so rooms stop feeling drafty and your air conditioner and furnace don't have to work as hard, which is a big part of a high power bill. Sealing also keeps out moisture that can warp wood and lead to mold.
Most people who call me have an older house that never feels comfortable, hot upstairs in summer or cold floors in winter, and there's already some insulation in the attic. It's like a warm jacket with the zipper left open, because more insulation won't fix much while the gaps stay open, and if you're also thinking about attic insulation, we can look at both on the same walk-through. The price mostly turns on how many hidden leaks there are, how much old insulation we have to move to reach them and how easy the attic is to get into. The schedule turns on whether anything has to be fixed before we seal, like a roof leak or old wiring. Your written estimate shows what I found, with photos, and what has to happen first.
How can you tell your house has air leaks?
Rooms that never feel right
The upstairs runs hot all summer, or the room over the garage is always colder than the rest of the house. That usually means outside air is getting in through gaps you can't see, and the longer it goes, the more hours your AC runs trying to keep up.
Dark lines along the carpet
Gray streaks at the edges of the carpet or around ceiling vents are dust left behind by air pushing through a gap. They point right at a leak, and air that carries dust in can carry attic dirt and moisture in with it.
A power bill that keeps climbing
If the bill goes up every summer and nothing about how you live has changed, the house may be losing cooled air faster than it used to. Waiting just means paying for that lost air month after month.
What our air sealing services include
Before we seal anything, I look at your gas appliances and how much fresh air the house needs, because a tighter house changes how much air reaches the furnace, water heater and stove. Then we find the hidden leaks, which in most homes sit in the attic floor under the insulation, around can lights, plumbing and wiring holes, along the tops of the walls and at the hatch. Our crew seals those spots with caulk or foam that fits the size of the gap, and we keep the eave and soffit vents clear so the attic keeps breathing, since a buried vent traps moisture in the framing. Then we lay the insulation back evenly, full depth at the edges as well as the middle.
Air sealing often ties into other work. If cold air comes up from below, we can seal those gaps and add basement insulation so the floor above stops feeling cold. Where the ductwork lives in the attic, I'll talk with you about closed-cell foam insulation, a dense foam that blocks moisture and seals air while it insulates. It costs more, so for most attics without ducts I'd rather seal the gaps and top up the blown-in insulation, which is loose fill blown through a hose, because that usually gets you more for your money.
Seal and top up loose fill
This suits most attics with no ductwork up there, where we seal the gaps and bring the blown-in layer back to an even depth. It's the lower-cost way to stop drafts and let the insulation do its job.
Closed-cell foam around the ducts
This suits houses where the ducts run through the attic, because foam seals and insulates in one pass and brings the ducts inside the insulated part of the house. It costs more, so I'll show you whether it's worth it on your house or tell you it isn't.
Get a written air sealing estimate after we walk your attic
Send the form and I'll get back to you within one business day to set a time to come out. The estimate is free and done on site, and there's no pressure and no obligation to go ahead.
(951) 418-3036Air sealing services in Perris: permits and licenses
Whether your sealing job needs a permit is up to the City of Perris, so I ask the city's building office before we start instead of guessing. When it does, we pull the permit ourselves and set up the inspection, and if you'd rather pull it as the owner, you'll sign the city's owner-builder form and I'll explain what the office will ask you for. The city lists what it needs on its permit requirements. California's contractor license board counts installing any insulation for heat or sound control as licensed contractor work, so it's fair to ask anyone you're thinking of hiring about their license.
Around Perris we see a lot of older houses where summer heat builds up in the attic and the ductwork runs right through it, so I look at the ducts and the attic floor together. We do the same work in Menifee, Moreno Valley and the other cities across western Riverside County, so if your city isn't listed, just ask.
What happens when you call about air sealing in Perris?
Call or send the form
You call (951) 418-3036 or fill out the form, and I'm the one who answers or calls you back. We pick a time for me to come out and look at the house with you.
Walk the attic with me
I look at the attic, walls or crawl space with you and take photos so you can see what's up there. You get a written estimate that shows what we'll seal, how much insulation we expect to move and anything that has to be fixed first, so you know what the price covers before you decide.
Our installers seal the leaks
When you're ready, our trained installers do the work in the order the estimate lays out, with the appliance and attic checks done before any sealing. If the job needs a permit, the inspection is set up as part of the job.
Final check and walk-through
I check the work before we pack up. Then we walk you through what went in, so you understand your own attic.
Frequently asked questions
How do I find air leaks in my house?
You can find the obvious ones yourself, like drafts around door frames and where pipes, vents and wires pass through outside walls, and sealing those yourself can work. The small leaks in the attic, buried under layers of insulation, are another matter, which is why energy assessors use a blower door test, a big fan that pulls air through the house, and a thermal camera to track them down. If the house still feels drafty after the easy fixes, the leaks you're missing are usually up there.
Will air sealing affect my gas appliances?
It can, so the fresh air check comes before any sealing. Energy Department guidance treats air sealing and ventilation as one job, because a gas furnace, stove or fireplace that doesn't get enough oxygen may release carbon monoxide into the house. That's why it's the first thing I look at on your house.
What does a contractor check in an attic before air sealing?
The attic should be checked for live knob and tube wiring, the old cloth-wrapped kind, vermiculite insulation, a leaking roof and bathroom fans that vent into the attic instead of outside. Energy Department attic guidance lists these as reasons to stop work, so any one of them gets dealt with before we seal. I'll show you photos of anything I find and explain what has to happen first.
What happens to my attic insulation during air sealing?
Some of it gets moved, because the crew has to pull insulation back to reach the spots being sealed and then put it back. It's a fair question to ask any contractor how much they expect to move, and I'll tell you at the estimate. If what's up there is soaked or full of droppings, I'll tell you that too, since covering it again keeps the problem, and insulation removal may need to come first.
How much does air sealing cost in Perris, CA?
The cost depends mostly on how many hidden leaks your house has and how much insulation we have to move to reach them. An attic that's easy to get into with nothing to fix first costs less, while a cramped attic, ducts that call for foam or a problem like a roof leak adds to it. I'll give you a written price after I've seen your attic, not a guess over the phone.
What is the best way to air seal an attic before adding insulation?
Seal first, then insulate. Energy Department guidance for existing vented attics says to air seal all the openings through the attic floor before new insulation goes in, because insulation laid over open gaps just has air moving through it. Once the gaps are closed, the new layer can do its full job.
Perris, CA
Book an air leak check for your house
Call (951) 418-3036 or use the form, and have a list of your gas appliances and where the attic hatch is, so we can plan the visit before I get there.




