J&S Vacaville Insulation ServicesJ&S Vacaville Insulation Services(707) 452-3285
J&S Vacaville Insulation Services
(707) 452-3285Get an estimate

Insulation contractor in Vacaville, CA - attics sealed and insulated in the right order

J&S Vacaville Insulation Services is an insulation contractor based in Vacaville, CA. We seal the gaps and insulate attics, walls and crawl spaces for homeowners, and handle insulation for property managers' buildings across the city.

Get an estimate(707) 452-3285
White spray foam coats the underside of a large timber roof, filling spaces between exposed trusses.

Insulating homes in Vacaville, where we're based

As an insulation contractor based in Vacaville, CA, we spend a lot of our days in attics across town. The calls are the ones you'd expect: a hot upstairs, a drafty bedroom, cold floors, the room over the garage that never feels right, and a power bill that keeps going up. Property managers call us about their buildings too. We bring the same approach to jobs in Fairfield and Davis.

Each job comes down to the house itself. Its age, how many inches are already in the attic and whether the ducts run up there decide what we do, so I look before I price anything.

Insulation services for Vacaville homes and buildings

Every job here starts with me going up into your attic or down into your crawl space to see what's actually going on. Then we fix things in the right order, sealing the gaps before adding insulation and pulling out old material that's past saving. Below is the work we do around Vacaville, from a single drafty room to a whole house or a property manager's building, and what each service is for.

  • Spray foam insulation

    When ductwork runs through the attic or a space can't hold loose fill, spray foam insulates and seals air in the same pass. We suggest it where your house will use that seal, not as the default.

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  • Attic insulation

    Most calls here start with a hot upstairs or a high power bill, and the attic is usually why. We seal the gaps first, then bring the insulation to an even depth from the middle out to the eaves.

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  • Blown-in insulation

    A lot of older attics have loose fill that's settled thin over the years. We top it up with blown-in insulation, loose fill sent through a hose, and keep it back from the eave vents so the attic still breathes.

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  • Home insulation

    When several rooms feel drafty, the fix is rarely one spot. We look at the attic, walls and floors together and start with whichever is losing the most.

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  • Insulation removal

    Insulation that got soaked or filled with droppings has to come out before anything new goes in. Covering it only buries the problem, so we clear it out and clean up first.

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  • Crawl space insulation

    Cold floors usually mean the insulation under them has sagged or fallen. We fit new insulation between the floor joists and hold it tight against the subfloor.

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  • Wall insulation

    Outside walls in older houses are often close to empty, and you feel it when you stand next to one in winter. We fill them through small openings and patch them so the room looks the way it did.

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  • Air sealing services

    Drafts sneak in around outlets, trim and pipes through outside walls, not just from the attic. We find those leaks around the whole house and close them so the insulation you have can do its job.

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  • Basement insulation

    Where a house or building has a basement, the bare concrete walls pull heat out of the rooms above. We insulate those walls with materials that can handle moisture coming through the concrete.

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  • Closed-cell foam insulation

    Closed-cell foam, a dense foam that also blocks moisture, fits damp spots like crawl space walls and rim joists. It costs more than most options, so we save it for places where moisture is part of the problem.

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  • Open-cell foam insulation

    Open-cell foam is softer and lighter, and it suits rooflines and walls where you want a tight air seal and quieter rooms. We keep it out of damp spots, since it doesn't stop water the way closed-cell foam does.

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  • Commercial insulation

    Property managers call us about their buildings around Vacaville, from drafty units to tired insulation over a whole roof. We plan the work around the people using the building so it keeps running while we're there.

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  • Crawl space vapor barrier

    Bare dirt under a house gives off moisture that works its way into the floor framing and insulation. We lay a vapor barrier over the ground to keep that damp down where it belongs.

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  • Vapor barrier installation

    Walls, floors and ceilings that see moisture need a vapor barrier on the correct side of the insulation. We place it where your house needs it, because on the wrong side it traps moisture instead of stopping it.

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  • Attic air sealing

    Air leaking up from the rooms below carries your heating and cooling straight into the attic through gaps at can lights, pipes and the hatch. We close those leaks from above before any insulation goes down, so the new layer isn't fighting a draft.

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  • Retrofit insulation

    Older houses can get better insulation without tearing out walls or ceilings. We add it from the attic, the crawl space or small wall openings, depending on where your house is losing the most.

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What good insulation work looks like up close

These photos show the kinds of work we do, from sealing gaps around an attic hatch to blowing in fresh fill. They show the trade in general, not a particular house we worked on.

  • A worker in protective gear sprays white foam insulation between wall studs.

  • White spray foam seals the underside of a roof between exposed wooden rafters.

  • A crawl space has a white plastic vapor barrier beneath ducts and pink insulation between the joists.

What to know before insulation work in Vacaville

Insulation work inside city limits runs through the city's rules and the state's, and both can affect your schedule. Here's how permits and licenses work here, and what changes the price of your job.

Permits and licenses inside city limits

If your house is inside Vacaville city limits, the city's Building Division issues the building permit and inspects the work, so when your job needs a permit, the schedule waits on that review and inspection. We apply for the permit and book the inspection ourselves. A house in Dixon or another city goes through that city's own office instead.

Before you sign with anyone, check two things. The contractor should hold a California contractor's license, which the state licensing board issues to anyone who builds or alters a building here. They should also hold a Vacaville business license, which the city requires of anyone charging for work inside city limits. Those expire every April 30, so ask whether it's current.

  • Inside city limits, the city issues permits and inspects the work.
  • When a permit is needed, we apply and schedule the inspection.
  • Ask for a state license and a current Vacaville business license.

What sets your price and your schedule

Price comes down to how much of the house we're covering, how easy the attic or crawl space is to get into, and what's already there. A few inches of clean fill can often stay and get topped up. Insulation that's soaked or full of droppings has to come out first, and removal and cleanup add to the job.

The schedule turns on the permit when there is one, on any removal, and on the material. Spray foam comes with a re-entry time, the wait before you, the kids and the pets can come back inside, and I'll tell you what it is for the product we'd use. I look at the job myself and give you the estimate in writing.

  • How many inches are already up there, and their condition
  • Whether old, wet or droppings-filled insulation has to come out first
  • Loose fill or spray foam, and any time out of the house

Get a free written insulation estimate for your Vacaville home

Tell us what's going on and your address in Vacaville, and we'll reply within one business day. I'll come out to look at the job myself, and you'll get a free estimate in writing, with no obligation to go ahead.

(707) 452-3285

What we find in Vacaville attics and crawl spaces

These are the things we run into most when we open up a house around here. None of them show from the hallway, which is why I go up and look before I write anything down.

  • Deep in the middle, thin at the edges

    Plenty of attics we open have insulation piled up in the middle and barely any out by the eaves. That's backward, because the edges are where the roof meets the walls and where a lot of heat gets in, so we bring them up to match.

  • Eave vents buried under fill

    When loose fill gets blown right over the vents at the eaves, the attic can't breathe, and moisture starts showing up in the framing. We put in baffles, small channels that hold the insulation back from the vents, so air keeps moving.

  • The room over the garage

    That room runs hot in summer and cold in winter because it sits over open space, often with little insulation in the floor beneath it. We look at the floor, the short walls and the ceiling, since any one of them can be the weak spot.

  • Ducts running through the attic

    When the ductwork lives in the attic, the air you paid to heat or cool travels through the hottest and coldest part of the house. Loose or crushed insulation around the ducts makes it worse, so we look at them closely and tell you what they need.

  • Cold floors over a crawl space

    In houses built over a crawl space, the insulation under the floor often sags or drops over the years, and the floors above turn cold. While we're down there fixing it, we also check the ground for moisture, because that's usually what pulled it down.

Why homeowners here hire us for insulation work

These are the habits behind how we run a job, from the first look to the last check. They come from years of installing insulation, and before that, a couple of years of selling it.

The owner looks at every job first

I sold energy upgrades for another company before I ever installed them, and I saw how easy it is to sell the big job when a house needed something smaller. So I come out to every job myself, go up into the attic and tell you what I find. I'd rather lose the sale than talk you into work your house doesn't need.

After that, our installers do the work, and I check it before we finish. I'm looking for the things that usually go wrong, like vents left buried, a gap left open around a light or a pipe, or edges left thin. If I find one, we fix it before we leave, not after you've noticed it.

  • Gaps sealed before insulation goes in

    We do the air sealing first and the insulation second, because insulation laid over an open gap just has air blowing through it. It's the part of the job you can't see once it's covered, so it's the part I watch most closely.

  • Licensed, insured and our own installers

    We're licensed and insured, and the people in your attic are our own installers, not a crew the job gets handed off to. That way the person who checks the work and the people who did it answer to the same business.

  • Calls taken 7 AM to 10 PM daily

    Our hours run 7 AM to 10 PM, Monday through Sunday, so you can call after work or on a weekend. Tell us what you're noticing in the house, whether it's a hot room, a draft or a high bill, and we'll set up a time for me to come out.

  • In business since 2017

    We've been sealing and insulating attics since 2017, and doing the work in the right order is still what we're known for. Satisfaction guaranteed. When you're ready, call (707) 452-3285 or send the form, and I'll come take a look.

Questions Vacaville homeowners ask about insulation

These are the questions that come up most when someone in Vacaville is planning insulation work. If yours isn't here, ask me at the estimate and I'll answer it there.

How do I get a permit for attic insulation in Vacaville?

The city's permit system lists attic insulation as a like-for-like replacement, handled under its replacement permit type, as long as nothing new is being added to the installation. When your job needs a permit, we take care of the filing and the inspection, so there's nothing for you to submit. I'll tell you at the estimate how it works for your house.

How do I check that an insulation contractor is licensed in California?

Ask for their state license number before you sign anything. The Contractors State License Board says a license is required when the project requires a building permit, uses any additional workers, or has contracts totaling $1,000 or more in labor and materials. A company sending a crew of installers to your house is using workers, so it should be licensed.

Which building code does Vacaville enforce for insulation work?

The city enforces Title 24, California's state building standards code, along with the city's own local amendments. A permitted insulation job is inspected to that code, so that's the standard we install to.

How much does attic insulation cost in Vacaville?

What you'll pay comes down mostly to the method, sealing the gaps and topping up loose fill or spraying foam. Sealing and topping up usually costs less, and for most attics it's the better choice. Foam earns its higher price when the ductwork runs through the attic, because it seals that space while it insulates, and you'll get your own figure in the written estimate after I've looked.

Service areas

We're based in Vacaville and also work in Fairfield, Dixon, Davis, Winters, Napa, Vallejo and the other cities listed here, along with plenty of others nearby. If you don't see yours, call (707) 452-3285 and ask.

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(707) 452-3285Get an estimate