Your Local Insulation Contractor in Los Banos CA - Rooms that stay comfortable
A&R Los Banos Spray Foam Insulation does spray foam and attic insulation in Los Banos and nearby cities like Gustine and Newman. We also clear out old attic insulation nobody's looked at in years and insulate shops and metal buildings.

- Licensed and insured.
- Free quotes on site.
- Replies within 1 business day.
Insulation work, start to finish
Insulation contractor in Los Banos CA - attics, walls and crawl spaces
A&R Los Banos Spray Foam Insulation is an insulation contractor in Los Banos, CA, and we handle 16 kinds of insulation work, from attics and crawl spaces to metal shops. Most calls start with a hot upstairs, cold floors, a drafty room or a power bill that keeps climbing. The price mostly turns on the size of the space, what has to come out or get fixed first and which material fits. The schedule turns on that same prep, plus any permit the job needs, because sealing and repairs go in before the insulation does. I look at your place in person and write the estimate line by line, so you see your own figure before anything starts.
Spray foam insulation
Spray foam goes on as a liquid, expands to fill the space and seals air while it insulates. It suits attics with ductwork, rooflines and metal buildings.
Attic insulation
Is it hot upstairs? We check how many inches are already up there, seal the gaps, then bring the attic up to a proper depth.
Blown-in insulation
Blown-in insulation is loose fill blown through a hose. We use it to top up attics, keeping the edges as deep as the middle.
Home insulation
Some houses need work in more than one place. We look over the attic, walls and crawl space together and tell you which part matters first.
Insulation removal
Old insulation that's soaked or full of droppings has to come out before new goes in, or the problem stays. We vacuum it out and clean up.
Crawl space insulation
Cold floors over a crawl space? We insulate under the floor so the rooms above stay warmer, after checking for moisture that would ruin the work.
Wall insulation
We insulate open walls during a remodel or addition, and fill closed walls in older houses that were built with little or nothing inside them.
Air sealing services
Air sealing closes the small gaps that let air through, around pipes, wires and outlets. We do it before insulating so new material isn't fighting a draft.
Basement insulation
Got a basement that feels damp and chilly? We sort out where the moisture comes from first, then insulate the walls so the room holds its heat.
Closed-cell foam insulation
Closed-cell foam is dense foam that blocks moisture as well as heat. We spray it in crawl spaces, basements and metal buildings where dampness is a worry.
Open-cell foam insulation
Open-cell foam is a softer, lighter spray foam that fills gaps and quiets sound. We use it under rooflines and in walls where moisture isn't a concern.
Commercial insulation
We insulate shops, metal buildings and small commercial spaces, so a building that bakes in the afternoon or sweats inside is easier to work in.
Crawl space vapor barrier
We lay heavy plastic over the crawl space dirt so ground moisture stays out of your floor framing and the insulation above it.
Vapor barrier installation
Vapor barriers go on walls, ceilings and floors to keep damp air out of the insulation. We place them to suit how your house is built.
Attic air sealing
Drafty rooms often trace back to the attic. We seal the gaps around can lights, pipes and the hatch before any insulation goes on top.
Retrofit insulation
Retrofit insulation means adding insulation to a house that's already finished and lived in. We work around your rooms and leave the house the way we found it.
How a job goes, from call to walkthrough
You call, we set a time
Call (209) 270-5807 or send the form and tell us what's going on, whether it's a hot upstairs, a drafty room or an attic nobody's checked. We'll get back to you within one business day to set a time for me to come out.
I look and write it up
I go up into the attic or under the house, check how many inches are already there and note anything that needs fixing first. You get a free written estimate with each part of the job on its own line, and there's no pressure to book.
We prep, seal, then insulate
If you go ahead, we pull any permit the job needs and set up the inspection before we start. Our crew does the prep and sealing first, then the insulation, so nothing gets buried that should have been fixed. When we're done, I walk the finished job with you.
Why people around Los Banos call us
Want me to take a look? Request a free estimate or call (209) 270-5807.
The person who prices your job is on it
The estimate comes from what I saw in your attic or crawl space, not a guess over the phone. I'm on the job with our small crew when the work gets done, so nothing gets lost between the quote and the install.
Problems that need fixing first, told straight
Insulation laid over a leak, a wet spot or bad wiring just hides the trouble. If I find one of those, or a gas appliance that should be checked, I tell you before we talk about insulation.
No sale when you don't need the work
If your attic already has enough and the gaps are sealed, I'll say so, even if it means no job for us. I'd rather lose a sale than sell you something you don't need.
Licensed and insured, and your house left clean
We're licensed and insured, and we cover the path to the attic and clean up before we leave, because your house should look the way we found it, just with the work done. Your satisfaction, guaranteed.
Insulation questions from Los Banos homeowners
How much does attic insulation cost in Los Banos?
It depends on your attic, so I give you a price after I've seen it, not over the phone. What moves it most is how many inches are already up there, how easy the attic is to get into and how many gaps need sealing before anything new goes down. The estimate is free and lists each part on its own line.
Who licenses insulation contractors in California?
The Contractors State License Board licenses and regulates California's construction industry, and that includes contractors working in Los Banos. The city also requires its own business license, and its fee schedule lists a $50.00 citation for not having one or not posting or carrying it. We're licensed and insured.
How much can a contractor ask for up front on a home improvement job in California?
The state board caps the down payment on home improvement work at $1,000 or 10 percent of the total contract price, whichever is less. Any other payments should be spelled out in the contract and based on work already done or materials delivered to your house. Those rules apply to all home improvement projects.
How long will the insulation crew be in my attic, and do we have to leave the house?
It depends on the size of the attic and how much prep it needs, and I'll tell you what to expect when I write the estimate. Air sealing and loose fill usually don't mean leaving home. Spray foam is different, because it has a re-entry time, a wait set by the foam maker before people and pets come back inside.
Does insulation work in Los Banos need a permit?
It depends on the job, and if yours needs one, we pull it, set up the inspection and tell you before we start. When it isn't clear, we ask the city or county building office first. The city's fee schedule charges work done without a required permit at twice the permit fee, so getting it first keeps you at the base fee, listed at $100.00 per discipline for residential permits.
Is spray foam better than blown-in insulation for an attic?
Not usually, because foam costs more and mostly earns it when ductwork runs through the attic and the air has to be sealed as it's insulated. For most attics, sealing the gaps and topping up with blown-in loose fill is the better buy. Foam makes more sense in metal buildings and in spots where moisture is a worry.
Do you guarantee your insulation work?
We stand behind our work with one promise, your satisfaction, guaranteed. Before we pack up, I walk the finished job with you so you can see the sealing and the insulation and point out anything that doesn't look right while we're still there.
Did the 2023 floods hit homes in Merced County, and does it matter for insulation?
Yes, one flood map compilation names 2023 as Merced County's worst year for flood claims, with $10.1 million paid after severe winter storms. Those are county figures, not Los Banos ones. If your crawl space or floors ever took water, wet insulation has to come out and the space has to dry before anything new goes in, and I look for that when I come out.
Los Banos and the Westside
Los Banos sits on the Westside of the San Joaquin Valley in Merced County, and the Milliken Museum keeps the story of the city and the Westside for anyone who wants to learn it. A few years back, a funding request called Pacheco Park the flagship park in Los Banos, home to the city's only public library and its local history museum.
Just outside the city, Los Banos Creek Reservoir is known for its fishing, and as of the state parks notice dated September 30, 2026, low water limits boating to kayaks, canoes and other small craft you carry in by hand. We're based in Los Banos and work in the cities around it, so the houses we go into are ones our own neighbors live in.
Where we work: Los Banos and nearby cities
A&R Los Banos Spray Foam Insulation is based in Los Banos, CA, and works across the cities around it, including Dos Palos, Gustine, Newman and Chowchilla. The 9 service areas listed here each have their own page, and we take jobs beyond them too. Call or send the form and we'll get back to you within one business day to set a time.
ContactAbout us: a Los Banos insulation crew since 2023
I came to insulation after years of fixing tractors and irrigation pumps, learned the trade working for an insulation contractor, and started A&R Los Banos Spray Foam Insulation in Los Banos in 2023. We're licensed and insured, and we offer 16 insulation services across 9 service areas around Los Banos. You can read more about us and how we work.
- Established
- 2023
- Years in business
- 3
- Services
- 16
- Areas served
- 9

Insulation estimates, free and at your place
Send the form and we'll get back to you within one business day to set a time for me to come out and look at the space. You'll get a free written estimate with each part of the job on its own line, and there's no obligation to book.
(209) 270-5807