Attic air sealing in Baldwin Park CA - a tighter ceiling and fewer drafts upstairs
Hot rooms upstairs, drafts and a power bill that keeps climbing usually trace back to gaps in the ceiling. We find them and seal them.

What does attic air sealing do for a drafty Baldwin Park house?
Attic air sealing in Baldwin Park closes the gaps between your rooms and the attic, around light fixtures, duct boots where the ducts meet the ceiling, wiring, plumbing pipes and flues, so the air you paid to heat or cool stays in the house instead of leaking into the attic.
We're based in Baldwin Park and work the cities around it across the San Gabriel Valley, and most calls start with a hot upstairs, a room over the garage that never feels right, or a bill that won't come down. Plenty of houses around here have low, cramped attics that bake in summer, which makes all of that worse. The price moves with how many gaps there are, how hard they are to reach and how much old insulation sits on top of them, and the schedule mostly turns on what's under that old insulation and whether the job needs a permit. I'll give you your own figure after I've been up there. We're licensed and fully insured, and in California, installing insulation falls under the state's C-2 insulation and acoustical contractor class.
What happens after you call us about attic air sealing?
Call or send a message
Call (626) 869-2237 or use the form and tell us what you're noticing, like a hot room, drafts or a high bill. Mention a gas furnace or water heater too, so I know before I get there.
I look at your attic
I come out myself, go up into the attic and walk you through what I found and what I'd do first. You get the price for your house before any work starts, so there's no guessing.
We handle any permit needed
If the job needs a permit, we pull it and set up the inspections. First we check which office covers your address, because around here it isn't the city every time.
Our crew seals, I check
Our own crew does the sealing, and I go up and look it over before we call it done. Your satisfaction, guaranteed.
How we do attic air sealing
Before anything gets sealed, I look at what's already in the attic, because fresh work over wet insulation or a layer full of droppings just keeps the problem around. If the old insulation turns out to be vermiculite, the work stops there, because it may contain asbestos and that has to be handled first. Live knob and tube wiring in an older house has to be replaced or properly boxed before insulation goes back over it, so I'll tell you if I see it. Then our crew pulls the insulation back from the leaks and seals them, around the can lights, duct boots, pipes, wiring and the attic hatch, and any flue gets fire-rated material with room left between it and anything that can burn. We close the gaps from your rooms into the attic and leave the soffit and ridge vents open, since those are there on purpose and burying them is how moisture ends up in the framing.
Sealing is often half of a bigger job. If your attic is thin, retrofit insulation tops it up once the leaks are closed, usually with loose fill blown in through a hose. Spray foam insulation is the other route, since it seals air while it insulates, but it costs more, and for most houses sealing the gaps and topping up the loose fill wins. Where the ductwork runs through the attic, which it often does here, foam starts to earn its price.
Get an attic air sealing estimate for your house
Send the form and we'll get back to you within one business day to set a time. I come out, look at your attic and give you a free estimate on site, with no obligation.
Attic air sealing questions from Baldwin Park
How do I know if my house needs attic air sealing?
Drafty rooms, rooms that run warmer or cooler than the rest of the house, high heating or cooling bills and dust showing up in the rooms under the attic are the usual signs. If you're seeing two or three of them, it's worth having someone look and give you a price.
How much does attic air sealing cost in Baldwin Park?
The cost comes down to how many leaks your attic has, how hard they are to reach and how much old insulation has to be moved or replaced to get at them. A low, tight attic takes more work than one you can stand up in, and adding insulation or choosing foam at the same time raises the total. I give you the figure after I've seen your attic.
Is attic air sealing safe if I have a gas furnace or water heater?
It can be done safely, but gas appliances should be tested for proper drafting before and after the sealing. A tighter house can sometimes pull exhaust back inside instead of sending it up the flue, which is why combustion safety comes first on any sealing job. Tell me about your gas appliances when you call so the test is planned into the job.
Should attic air sealing be done before adding new insulation?
Yes, seal first and insulate after, because that order gets the most energy savings out of both. The usual sequence puts combustion safety and indoor air first, then keeping the attic dry and breathing, then the sealing, then the insulation. If insulation is coming, we do the sealing first so nothing has to be pulled back up later.
What is the best way to stop drafts coming from the attic?
Seal the gaps themselves, because fiberglass and other fluffy insulation slow heat but let air slip right through. Narrow cracks take caulk, foam or aerosol sealant, and bigger openings get blocked in with rigid material sealed at the edges.
Who issues building permits in Baldwin Park?
The city's Building and Safety Division issues building permits in Baldwin Park, handles plan checks and inspects the work it permits. The office is open Monday through Thursday and closed Friday, so plan any call around that. Whether your sealing job needs a permit is a question for that office, and we'll check which office covers your address before we start.
Work that often goes with attic sealing
Retrofit insulation
If the insulation already up there is thin or packed down, adding more after the leaks are closed is the next step toward a cooler upstairs.
Spray foam insulation
When your ducts run through the attic or you want one product that seals and insulates together, foam is worth pricing out.
Get your attic checked before you insulate
Have a note of your drafty rooms, your recent bills and any gas appliances ready when you call (626) 869-2237 or use the form, so the first visit covers everything.




