Beacon Marina Spray Foam InsulationBeacon Marina Spray Foam Insulation

Air sealing services in Marina CA - a tighter house that still breathes right

Drafty rooms or a hot upstairs usually trace back to hidden gaps. We find them and seal them without cutting off your furnace's air.

White spray foam fills the spaces between exposed wooden rafters, sealing the underside of a roof.

Do I need air sealing or just more insulation?

Air sealing services in Marina, CA close the cracks and gaps that let air move in and out of your house, so the insulation you already have can do its job. Insulation slows heat, but it doesn't stop air, and a drafty room usually means air is slipping right past it.

If upstairs runs hot, the room over the garage never warms up or the power bill keeps climbing, the leaks are usually in the attic, buried under insulation where you'd never spot them. The price turns on how many gaps there are, how hard they are to reach and whether old insulation, wiring or a roof leak has to be dealt with first, and the schedule turns on those same things plus how much is stored up there. Plenty of people pair this with attic insulation, and the estimate I write up after looking gives you the price and the order of work for your house.

How we handle air sealing in your house

Before we tighten anything, I check how your furnace, water heater and fireplace get their air, because sealing a house can't come at the cost of the air those appliances burn. Then we clear a path, pull back the old insulation where the leaks hide, and seal around the attic hatch, plumbing and wiring holes, light fixtures and the tops of interior walls. Combustion air ducts and the eave, ridge and gable vents stay open on purpose, since your house and attic need those openings to work right. If the old insulation is soaked or full of droppings, it comes out instead of going back over the sealed gaps.

When your ductwork runs through the attic, closed-cell foam insulation can make sense because it seals and insulates in one dense layer, but it costs more, and for most attics sealing the gaps and topping up loose fill is the better buy. Below the main floor, the same kind of leaks show up around pipes and along the rim of the house, and basement insulation is the next step once those are closed.

Air sealing and fresh air in Marina houses

A tighter house has less outside air coming in to dilute the air inside, so moisture and anything that builds up indoors matter more once the leaks are closed. That's why ventilation is part of our plan from the start, not something we think about after. We make sure your house still has a way to move stale, damp air out when we're done, and we do the same on jobs in Seaside and Monterey.

Marina sits in a mild, damp marine climate, the same as the rest of Monterey County, so the trouble here is rarely brutal heat or cold. It's steady drafts and cool, damp air working its way in while the heater runs longer than it should, and sealing the gaps is usually the first fix worth making. We're based in Marina and work across the cities around it, so ask even if your city isn't named on this site.

How air sealing works with us

  1. Call or send the form

    You call (831) 920-0697 or fill out the form, and we set a time for me to come look. Tell us how you get into the attic and whether you have a gas furnace, water heater or fireplace.

  2. I look before I quote

    I come out myself and check the attic, walls or crawl space for live knob and tube wiring, old vermiculite fill, bath fans venting into the attic and roof leaks, because any of those gets handled first. You get a written estimate that shows what's leaking, what we'd fix, in what order and what it costs.

  3. Clear the attic, then seal

    Stored boxes may need to come down for a while, and any attic flooring has to come up before we seal, with its support replaced first if that floor is structural. Then our crew seals the gaps with me running the job.

  4. Insulate and walk through

    If the plan calls for more insulation, it goes down only after the gaps are closed. I walk you through the finished job so you know what's in your house and what we did to it.

White spray foam coats a high ceiling above metal framing and large silver ventilation ducts.

Get a free estimate for sealing and insulating your attic

We reply within one business day. I come out, look at your attic, walls or crawl space, and write up a free estimate on site. There's no pressure to book.

Call (831) 920-0697

Questions before you book air sealing

How much does air sealing cost in Marina, CA?

The cost comes down to how many leaks your house has and how hard they are to reach, so I price it after looking, not over the phone. Old insulation that has to come out, wiring that needs fixing first or a packed attic all add to it, while a house that only needs the hatch and a few pipe holes sealed costs much less. The estimate gives you the number for your house.

Can I seal air leaks in my attic myself?

For the small, hidden leaks in an older attic, usually not, because they're hard to find and insulation is lying right on top of them. Do-it-yourself sealing misses those, so hidden attic leaks are a job for a trained pro, not a weekend project.

Is air sealing safe if I have a gas furnace or fireplace?

Yes, when the job starts by checking how much fresh air your house needs and how your furnace, water heater, stove and fireplace get theirs. An appliance that runs short of oxygen can give off carbon monoxide, so that check is a normal first step of good work, not an extra.

Should I air seal before adding attic insulation?

Yes. Sealing gets done before insulating, after the appliance safety and ventilation checks, and that order gives you the most energy savings. Once new insulation goes down, the gaps under it are buried again and much harder to reach.

How do I find out where my house is leaking air?

A certified home energy auditor finds leaks with a blower door test, a big fan set in a doorway that pulls air out so the leaks show, and an infrared camera that picks up the temperature difference. The same visit shows how well your house is ventilated. Ask whether the auditor holds a BPI Building Analyst or RESNET HERS Rater certification, and know that BPI-certified pros test before and after sealing so the change can be measured.

Is there help with air sealing for low-income households in California?

Yes. Under the state's Weatherization Assistance Program, community partners do energy audits in low-income homes, and the work can include sealing holes and cracks around doors, windows and pipes.

Why Marina homeowners call Beacon Marina Spray Foam Insulation for air sealing

  • The owner looks at your house

    I come out to look at the job myself, and our crew does the sealing with me running it. The person who found your leaks is the one making sure they get closed.

  • Running jobs since before 2013

    I ran jobs and crews for another contractor before I opened this business in 2013, and I learned the trade in a lot of attics and crawl spaces. That's how you learn where leaks hide under old insulation.

  • Licensed in California, fully insured

    We're licensed and fully insured. California's licensing board gives anyone installing insulation of any kind its own contractor classification, so this is licensed trade work here.

  • Told straight when you don't need it

    If your attic only needs a few gaps sealed, I'll say so instead of selling you foam. You pay for the work your house needs, done in the right order.

Your satisfaction, guaranteed. Tell us about your attic and any gas appliances through our contact page, or call (831) 920-0697.

  • Closed-cell foam insulation

    If your ducts run through the attic, closed-cell foam seals and insulates around them in one pass, which loose fill can't do on its own.

  • Basement insulation

    Cold floors over a basement often come from air slipping in along the rim and around pipes, and insulating down there keeps that warmth upstairs.

Get your attic leaks and insulation checked

Call (831) 920-0697 until 11 PM on weekdays or 10 PM on weekends, or send the form tonight, and we'll set a time to come look.

A garage interior has cream-colored spray foam covering the walls and ceiling around exposed framing and an open doorway.
(831) 920-0697Request a consultation