Air sealing services in Oceanside CA - fewer drafts and steadier rooms upstairs
Drafty rooms or a hot upstairs? We find the leaks hidden in your attic and close them before any insulation goes down.
Do I need a pro to seal the air leaks in my house?
Air sealing services close the gaps where outside air sneaks into your house, around doors, through the attic and wherever pipes, vents and wires pass through. In Oceanside we focus on the leaks buried under insulation where you can't reach them. Sealing them cuts drafts, and it keeps out the damp air that can warp wood and lead to mold in your framing.
Most calls start with a room that won't hold its temperature, a draft you can feel along the floor or a power bill that seems high for the size of the house. The price depends on how many leaks are hiding up there, how much old insulation has to be pulled back or hauled out to get at them, and whether attic flooring, stored boxes or a gas furnace or fireplace changes the plan. The schedule depends on the same things, plus whether new insulation follows and whether the city wants a permit for your job. So I look first and put it all in a written estimate with photos of what I found.
What our air sealing services include
I'd rather tell you a drafty door is a weekend caulk job than sell it to you, so we save our time for the leaks hiding under the insulation where you can't reach them. Before anything gets sealed, I check the attic for problems that change the plan, like old wiring, vermiculite, a bath fan blowing into the attic or a roof leak, because sealing over any of those just hides them. If the attic has flooring nailed over the joists, that comes up first, and where it's holding something up we rebuild the support before we pull it. Then our installers pull back the insulation and seal the holes in the attic floor around can lights, pipes, wires, flues and the hatch, using caulk, one-part spray foam or rigid blocking depending on how big each gap is. We keep the eave vents clear so the attic can still breathe, and we leave everything ready for insulation to go back over the sealed floor.
Sealing usually connects to other work in the house. Under the house or down in a basement you find the same kind of gaps around pipes and framing, and we often close them as part of basement insulation. If your ductwork runs through the attic, closed-cell foam insulation, a dense foam that also blocks moisture, seals and insulates in one pass, and it's worth what it costs there. Everywhere else, I'd usually rather seal the gaps by hand and top up the loose fill, the fluffy insulation blown in through a hose, because you get most of the benefit for a lot less money.
Air sealing services in Oceanside and the city's permit rules
The City of Oceanside issues building permits and says most construction work needs one, so the real question for your job is whether it falls on the city's list of exempt work. The city won't confirm an exemption over the phone, and an exemption has to be requested in writing. Permits go only to contractors licensed in California for the right kind of work, or to owner-builders who've owned the house for the last 12 months. If your job needs a permit, we pull it as the licensed contractor and handle the inspections. If it isn't clear whether one is needed, we check with the city before we start.
We're based in Oceanside and work in cities across San Diego County and south Orange County, so ask even if your city isn't listed. A lot of what I find in attics here is old insulation that's been walked on, shoved aside by cable installers or nested in by critters, with the gaps underneath wide open. I see the same thing on jobs in Carlsbad and Vista.
How air sealing works with us
Call or send us a message
Call (760) 283-6084 or use the form, and we'll set up a time for me to come out. It helps to know roughly how old the house is and what's bugging you, like a hot upstairs or a cold room over the garage.
I look in the attic first
I get up into the attic or under the house, take photos and go over what I found with you before I leave. Then you get a written estimate that spells out which leaks we'll seal, what has to move first and what it costs, so you know the price before anyone starts.
Our installers seal the leaks
Our installers do the sealing while I check in on the job, and we take care of the permit side when your job calls for one. If a lot is stored up there, we'll work out with you where it goes while we're working.
We walk the finished attic
I walk the finished space with you and point out the sealed spots before insulation covers them up. We clean up before we go, because the job isn't done until the space is left clean.
Get a written air sealing estimate after I've seen your attic
Send the form and expect a reply within 1 business day so we can set up a time for me to come out. The on-site quote is free and obligation-free, and the written estimate comes with photos of what I found up there.
Questions before you book air sealing
How much do air sealing services cost in Oceanside?
I give you a written number after I've seen your attic, because the price depends on what's hiding under your insulation. You can keep it down by caulking the easy door and window gaps yourself, and by having us seal right before new insulation goes in so nobody has to pull insulation back twice.
Can I seal air leaks in my house myself?
Yes, for the obvious ones around door frames a weekend with caulk and weatherstripping usually does the job. It won't catch the small, hard-to-find leaks, especially in an attic buried under layers of insulation, and that's the part worth calling us for.
How do I find air leaks I can't see?
A certified home energy assessor finds hidden leaks with tools like a blower door test, which pulls air through the house so the leaks show up, and a thermal camera that picks up cold or hot spots. I start in the attic myself, and if the leaks still aren't clear, it's worth planning that kind of check before any sealing begins.
Should air sealing be done before adding new insulation?
Yes, the major leaks should be sealed before new insulation goes in, because once it's down they're buried and nobody can reach them. If you're planning new insulation, book the sealing first, and we can usually handle both on the same job so your attic only gets opened up once.
How do I air seal a house with a gas furnace or fireplace?
Start by working out how much fresh air the house needs, because a tighter house still has to vent a gas furnace, fireplace, stove or oven properly. Tell me about any fuel-burning appliances when you call, so I can check how they vent before we plan the sealing.
Is there free help with air sealing in California?
Yes, the state's Energy Savings Assistance program provides no-cost weatherization, including weatherstripping, caulking and repairs that cut air leaks, to households that meet the CARE or FERA income limits. If your household qualifies, check there first, and call us for the hidden leaks the program doesn't get to.
Why Oceanside homeowners call M&K Oceanside Insulation Company for air sealing
I do every estimate myself
I come out for the estimate, get into the attic and show you photos of what's actually up there. You see the gaps before anyone talks about adding anything, so you know what you're paying for.
Licensed and insured in your attic
We're licensed and insured, which matters when a crew is moving across your ceiling joists and working around wiring and flues. The work is backed by our satisfaction guarantee.
Started in Oceanside in 2021
I started this business here after years of property upkeep calls about rooms that wouldn't stay cool or warm. Landlords and property managers call us for the same reason homeowners do, because we've worked on their side of the job.
The leaks that matter are the ones under the insulation, so let's look at yours before anyone buys a bag of anything. Request an estimate or call (760) 283-6084.
Other work that goes with air sealing
Basement insulation
If the cold is coming from below the main floor, insulating the basement walls and framing keeps the floors upstairs from feeling chilly.
Closed-cell foam insulation
When ducts run through your attic, this dense foam stops air and moisture in one layer so the ducts aren't sitting in the heat.
Book an attic check before adding insulation
Call (760) 283-6084 or use the form, and tell us how you get into the attic, what's stored up there and whether you have gas appliances, so I come out ready to look in the right places.
