Air sealing services in Glendale CA - hidden leaks closed, vents left clear
Drafty rooms, a hot upstairs or a power bill that keeps climbing? We find the gaps under your attic insulation and close them safely.
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Do I need air sealing, or just more insulation?
Air sealing services in Glendale close the gaps where air slips between your rooms and the attic, so the house feels less drafty, your heating and cooling don't work as hard and less moisture gets into the wood up there.
Most calls I get start with a bedroom that won't stay comfortable, or someone who just bought an older house and can't figure out where the draft is coming from. The price comes down to how many leaks are hiding, how much old insulation sits on top of them, whether floorboards or stored boxes have to move first and whether you're adding attic insulation right after. The schedule turns on those same things, plus how easy your attic is to get into, and the estimate puts a number on your house once I've seen it.
How we handle air sealing services
The leaks that matter most are usually buried under old insulation, so we hunt them down before we seal anything. Our crew pulls the insulation back around can lights, pipes, ducts, the attic hatch and the tops of your walls, where air leaks up from the rooms below, and we look at what we uncover, because laying fresh material over insulation that got soaked or filled with droppings just buries the problem. Then we close the gaps, and the soffit, ridge and gable vents and any duct that feeds your furnace air stay wide open, since an attic that can't breathe starts showing moisture in the framing.
Sealing is usually the first stage of a bigger job. If your cold floors come from below, basement insulation handles that side of the house, and where ductwork runs through the attic, closed-cell foam insulation, a dense foam that also blocks moisture, can seal and insulate in one pass.
Hiring for air sealing in Glendale
California license law counts repairing, altering or modernizing a house as home improvement, and a home improvement contractor has to be licensed by the Contractors State License Board, whether they work full-time or part-time. When sealing is paired with new insulation, the board's insulation and acoustical class is the one that covers installing it, so before anyone climbs into your attic, ask which license they carry and whether it covers both parts of the job.
A lot of the houses we're called to are older, with can lights cut into the ceiling, floorboards somebody laid for storage and layers of insulation added over the years, and that's exactly where leaks hide. We see the same thing on jobs in Pasadena and La Crescenta-Montrose. Before we seal, I also look for old wiring, a roof that's been leaking into the insulation or a bath fan blowing straight into the attic, because those get dealt with first.
- Call (747) 372-8156
- Mon–Fri: 6 AM–11 PM, Sat–Sun: 7 AM–11 PM
- Glendale, CA 91206
What happens when you call us about air sealing in Glendale?
Call and tell me what's going on
Most of the time I pick up the phone myself, so you can tell me about the drafty room or the hot upstairs. We'll find a time for me to come out and look.
I look at your attic
I go up in the attic or under the house with a flashlight and walk you through what I find before I write up the estimate. You get the leaks I found and the work they need, and nothing you don't.
Our crew seals the leaks
Our crew lead and installers do the work and clean up as they go. If you've got belongings stored up there, we'll have settled ahead of time where they go while we work.
We look it over together
Before we pack up, I come back and check the work with you. You'll know what got sealed and where, and you're welcome to climb up and see it.
Why Glendale homeowners call WeatherFit Glendale Insulation Company for air sealing
The owner writes your estimate
I come out to look at the job and write the estimate myself, and I come back at the end to check the crew's work with you. You're dealing with the same person from the first look to the last.
Learned in attics with Dad
I learned this trade crawling through attics with my dad as a teenager, and I started this business in Glendale in 2021. He taught me that insulation is the job nobody sees but the family lives with every day, and I still work that way.
Licensed and insured for this work
We're licensed and insured. With the state's license rule covered above, that's the first thing to ask about on any crew you're thinking of hiring.
You pay only for what's needed
If your attic is already in decent shape, I'll tell you, and the estimate won't list work your house doesn't need. Your satisfaction, guaranteed.
When you're ready to find out what's going on up there, send us a request or call (747) 372-8156.
Request an estimateGet a free on-site air sealing estimate
We get back to you within one business day to set a time, then I come out, look at your attic and walk you through what I find. The estimate is free, with no pressure to book.
- Licensed and insured.
- Phone
- (747) 372-8156
- Location
- Glendale, CA 91206
- Hours
- Mon–Fri: 6 AM–11 PM, Sat–Sun: 7 AM–11 PM
Questions about air sealing in Glendale
How much do air sealing services cost in Glendale?
The cost depends mostly on how much work it takes to reach the leaks, not just how many there are. A clear attic with a few gaps runs a lot less than one buried under deep old insulation, storage floorboards or boxes, and pairing sealing with new insulation or foam raises the total. Your estimate gives you the number for your house.
Can I air seal my attic myself?
You can caulk an obvious gap, but federal energy guidance says a do-it-yourself job won't catch the small, hard-to-find leaks, especially in an attic already covered in insulation. Those usually get found with a blower door test and a thermal camera, so a covered attic is a job for a trained professional.
Is air sealing safe if I have a gas furnace or fireplace?
Yes, as long as the first step is working out how much fresh air your house needs for the furnace, stove, oven and fireplace. Federal guidance puts that check before any sealing, because appliances that don't get enough oxygen can put carbon monoxide into the house, and around a flue it calls for fire-rated caulk with a rated collar or sheet metal, kept clear of anything that can burn.
Should I air seal before adding attic insulation?
Yes, seal first. Federal guidance for adding insulation to a vented attic says to seal every opening through the attic floor before the new insulation goes in, so if more insulation is on your list, treat the sealing as stage one of that project.
How do I know if a contractor tested their air sealing work?
Ask whether they'll share blower door test results from before and after the job. The Building Performance Institute requires its certified professionals to run both tests, so it's a fair question to put to anyone you're thinking of hiring.
What is the best way to air seal an attic that has ductwork in it?
When the ducts live in the attic, foam is often worth it, because it seals the air and insulates at the same time. It costs more, though, so for most attics without ducts, sealing the gaps and topping up blown-in insulation, loose fill blown through a hose, is usually the better deal.
Other work that pairs with air sealing
Basement insulation
If the floors stay cold after the attic's sealed, the space below may be where the rest of the heat is going.
Closed-cell foam insulation
A good fit where ducts run through the attic or moisture is a concern, since the foam seals and insulates together.
Get your attic leaks found and sealed
Call (747) 372-8156 with a list of what in your house burns gas, anything stored in the attic and any insulation plans, so the first visit covers all of it.
Request an estimateCall (747) 372-8156