Air sealing services in Monterey Park CA - fewer drafts and less dust from the attic
Drafty rooms and dust along the ceiling? We close the gaps in your attic floor so the air you pay for stays in your rooms.
Is it my insulation, or is air leaking through the attic?
Air sealing services in Monterey Park close the holes and gaps between your attic and the rooms below, so the air you heat and cool stays in the house, the power bill comes down and less moist air gets up into the attic.
Most people call us thinking they need more insulation, but a lot of the time the bigger problem is air leaking through the attic floor, and fresh insulation laid over those holes just has a draft blowing through it. The price comes down to how many gaps there are, how tight your attic is to work in and whether old insulation has to come out or just get topped up, while the schedule mostly turns on whether anything has to be fixed before we seal. I'll give you a figure for your own house once I've been up there and looked.
- Fully licensed and insured.
- Free in-person estimates.
- Expect a reply within 1 business day.
What attic air sealing looks like
How we handle air sealing
Drafty rooms and dust under the ceiling usually mean air is moving through the attic floor, so that's where we work. Before we seal anything, I look for wet insulation, mold on the rafters, fans venting damp air into the attic and old knob and tube wiring, because those need fixing first and sealing over them just locks the problem in. Then our crew pulls the insulation back and closes the gaps around can lights, plumbing vent pipes, wiring holes, exhaust fans, chimneys, flues and duct openings, so the insulation that goes back down isn't fighting a draft. If you have gas appliances that vent on their own, we'll have you get them tested before and after.
Once the gaps are closed, the big choice is what goes on top. Foam costs more and seals air while it insulates, but for most attics, sealing the gaps and topping up loose fill does the job for less, unless your ductwork runs up there, which is when closed-cell foam insulation earns its price. If your floors run cold over a lower level, we can also look at basement insulation so the house isn't leaking at the bottom too.
Why Monterey Park homeowners call Monterey Park Spray Foam Insulation for air sealing
Doing this since 2013
I spent years doing upkeep for a property management company, chasing hot rooms and drafts in attics somebody else did wrong, and I went out on my own in 2013. That's why we spend our time on the gaps nobody sees once the hatch is closed, not just on piling insulation on top.
The person who quotes has looked
I come out and put your estimate together myself instead of sending someone to read you a price sheet. You hear what's worth doing and what isn't from the person who's actually been in your attic.
Licensed, insured and easy to check
We're fully licensed and insured, and it's worth asking anyone you're comparing to show you their license. In California, someone without one can only take small jobs up to $1,000 that need no permit and where they have nobody working for them.
Permits checked for your address
Monterey Park requires a permit for work on any building, with a few exemptions, and its permit list names work like roofing and windows but not air sealing, so we check with the city's building permit office before work starts. When a job needs a permit, we pull it and set up the inspection.
Air sealing only works if somebody gets up there and finds the gaps. Use our contact form or call (626) 597-0201 with which rooms run drafty and whether you have gas appliances, and I'll come take a look.
Get an attic check and an air sealing estimate
Send the form and we'll get back to you within one business day to set a time. I'll come look at your attic and give you a free estimate on site, with no pressure and no obligation.
- Fully licensed and insured.
- Free in-person estimates.
- Expect a reply within 1 business day.
What happens after you call about air sealing?
Call or send the form
Call (626) 597-0201 or send the form, and tell us which rooms are drafty and whether your attic hatch is tight to get through. We'll set a time for me to come out.
I check the attic myself
I get up in the attic, see what's already there and how bad the gaps are, and give you an estimate on site. You get a price for your house and a straight answer on what's worth doing.
Fix what has to come first
If something has to be fixed before sealing, you hear about it before anything is scheduled. That's also when you'd get any gas appliances tested, so there's a before to compare against.
We seal, then review together
Our installers close the gaps and put the insulation back in place. Before we wrap up, I go over the finished work with you.
Air sealing questions from Monterey Park homeowners
How do I know if my Monterey Park house needs air sealing?
Drafty rooms, big temperature swings from one room to the next, high heating or cooling bills and dust showing up in rooms under the attic are the usual signs. Any one of those is a good reason to have someone look at the attic floor, because that's often where the air is getting through.
How much does air sealing cost in the Los Angeles area?
Blown-in attic insulation with air sealing at the obvious gaps usually runs about $1,200 to $1,500 per job in the Los Angeles area. That covers the insulation and the sealing together, not sealing on its own, and what your attic needs decides where you land. I'll give you a number for your house when I come out.
Is air sealing safe if I have a gas water heater or furnace?
Gas appliances that vent on their own should be tested before and after sealing, because a tighter house can sometimes make them back-draft, pushing their exhaust back inside. The usual advice is to have a Home Performance Contractor do that testing, and we'll have you set it up before we start.
Which attic vents should stay open after air sealing?
Soffit, ridge and gable vents stay open, along with any duct that brings combustion air to an appliance, because those openings are there on purpose. We seal the gaps that shouldn't be there and leave those alone so the attic keeps breathing.
What is the best way to deal with vermiculite insulation in my attic?
Leave it alone until an approved lab tests it, because vermiculite, the light, flaky gray stuff, may contain asbestos. Your local health department can tell you which labs are approved, and we won't seal or work around it until you have the results.
Can air sealing keep radon and other soil gases out of my house?
It can help, because closing the holes in the attic ceiling cuts the suction a house builds as warm air escapes out the top, so less soil gas like radon gets pulled in from below. It's a side benefit on top of fewer drafts and a lower bill.
Work that often goes with air sealing
Basement insulation
When cold floors or damp air come from below the living space, insulating the basement stops the house from leaking at the bottom as well as the top.
Closed-cell foam insulation
Where ducts run through the attic or a spot has to block moisture as well as air, dense closed-cell foam handles both at once.