Insulation contractor in Gonzales, CA - attics, walls and crawl spaces done in order
Soledad Spray Foam Insulation insulates homes in Gonzales, CA. We air seal and insulate attics, walls and crawl spaces, and pull out old insulation first when it's wet or dirty, so nothing bad gets covered up.

- Fully licensed and insured.
- Free on-site estimates.
- We respond within 1 business day.
Insulation work for Gonzales houses
Gonzales sits in the Salinas Valley, about 17 miles south of Salinas and a short drive north of us. We're an insulation contractor based in Soledad, CA, and the same stretch of valley takes us down to King City and the cities in between.
Most calls here come from homeowners, with some from landlords with rentals and a few business owners. The houses run from older homes to newer ones. Older attics usually have a few inches of old insulation packed down, and the newer houses tend to call about a hot upstairs or the room over the garage. Price turns on what's already up there and what has to be fixed before new insulation goes in. The schedule turns on that too, and on whether the job needs a permit. I look at the space before I give you a number, because what I find decides the job.
- Leaks and bad wiring found first
- Gaps sealed before insulation goes in
- Even coverage out to the edges
- Eave vents left open to breathe
Insulation services we offer in Gonzales
Here's the work we do on Gonzales houses, rentals and small buildings, and where each kind of work usually fits.
Spray foam insulation
Spray foam insulation costs more than loose fill, but when your ductwork runs through the attic, I'll usually steer you toward it because it seals and insulates together.
Explore Spray foam insulationAttic insulation
Most Gonzales calls start upstairs. For attic insulation, we check how many inches are there, clear anything damaged, then build it up evenly out to the edges.
Explore Attic insulationBlown-in insulation
Blown-in insulation is loose fill sent up through a hose, and it's how we usually top up an older attic that has settled thin over the years.
Explore Blown-in insulationHome insulation
If the whole house feels drafty, home insulation means I look at the attic, walls and floors together and tell you which one to fix first, and why.
Explore Home insulationInsulation removal
Old insulation that got soaked or filled with droppings has to go. With insulation removal, it comes out before anything new goes in, so the problem doesn't stay.
Explore Insulation removalCrawl space insulation
Cold floors in a raised house usually trace back to bare framing underneath. Crawl space insulation starts with checking for leaks and loose wiring down there.
Explore Crawl space insulationWall insulation
Walls in older houses are often empty or close to it. Wall insulation fills those cavities with as little patching as your house allows.
Explore Wall insulationAir sealing services
Air sealing services close the gaps around pipes, wires and doors that let drafts through, so the insulation you add isn't fighting moving air all day.
Explore Air sealing servicesBasement insulation
Where a house has a basement or a room below grade, basement insulation covers the walls and the rim along the top, with moisture checked first.
Explore Basement insulationClosed-cell foam insulation
Closed-cell foam insulation is a dense foam that also blocks moisture, so we use it where dampness is the worry, like rim joists and some crawl spaces.
Explore Closed-cell foam insulationOpen-cell foam insulation
Softer and less costly than closed-cell, open-cell foam insulation fills odd-shaped attic and wall cavities well when moisture isn't the issue.
Explore Open-cell foam insulationCommercial insulation
Some Gonzales business owners call us too. Commercial insulation for shops and offices follows the same order we use on a house, problems first.
Explore Commercial insulationCrawl space vapor barrier
A crawl space vapor barrier is a heavy sheet laid over the dirt under your house, so ground moisture stays away from the framing and insulation above.
Explore Crawl space vapor barrierVapor barrier installation
In walls, floors and the room over the garage, vapor barrier installation goes on the side the maker calls for, so moisture doesn't get trapped inside.
Explore Vapor barrier installationAttic air sealing
Attic air sealing closes the gaps around can lights, pipes and the hatch. It's the step most often skipped, and why some attics stay drafty after new insulation.
Explore Attic air sealingRetrofit insulation
Landlords with older rentals here often ask for retrofit insulation, which adds insulation to finished walls, floors and attics without tearing the house apart.
Explore Retrofit insulation
Ask for your Gonzales estimate
Tell us what you're noticing and where the house is. We reply within one business day to set up a free visit at your home, with no obligation.
What Gonzales attics and crawl spaces need
The houses we work on in Gonzales run from older homes to newer ones, and their attics and crawl spaces tend to show the same few problems.
Attics settled thin
Older attics usually hold a few inches of packed-down insulation, often thinnest at the edges. I measure what's there, and we build the edges up first.
Droppings and old leaks
Fresh insulation laid over droppings or a water stain just hides the problem. We clear that out and get the leak fixed before anything new goes down.
Eave vents kept clear
Insulation pushed into the eaves stops the attic from breathing, and moisture shows up in the wood. We set baffles, short channels that hold it back, so air keeps moving.
Your city not listed? Give us a call
We're based in Soledad and work in the cities around it. If your house is in one of the cities below, open its page to see what we run into there.
If your city isn't on the list, call (831) 315-4005 anyway. These are the cities with their own page, not the only places we go, and I'd rather hear about your house than have you guess.
From your call to the finished job
I keep it simple because you should know what you're paying for, and why, before anyone climbs into your attic. That means one visit, one written estimate, then the work.
Call or send the form
Call (831) 315-4005 or send the form with what's bothering you, like a hot upstairs or cold floors. We get back to you to set up a visit.
I look in person
I come out and look at the attic, walls or crawl space myself, checking for leaks, droppings, bad wiring and how many inches are already there.
Your written estimate
You get a written estimate listing anything that needs fixing first and what I'd do after that. If you go ahead, we line up any permit with the city.
The work and walkthrough
When a permit is needed, the city's plan review can take up to 30 days. Then our crew does the work, and I walk the finished job with you.
Gonzales insulation questions
How do I find out if my insulation job needs a permit in Gonzales?
Ask the city's building office, because the city's Building and Planning Divisions issue permits there. Their list names projects like additions, remodels, ADUs and garage conversions, not insulation on its own, so if your job isn't clearly covered, we check with the city before we start. When a permit is needed, we handle the paperwork as part of the job.
When are building inspections held in Gonzales?
City building inspections run Tuesdays and Thursdays from 1:00 to 4:00 PM, and other times can be set up ahead with the Building Inspector. The permit card and the city-stamped approved plans have to stay on site the whole time, so we keep them there until the job is signed off.
Does an insulation contractor from out of town need a Gonzales business license?
Yes. The city requires a business license to do business in Gonzales, including for companies based outside city limits, and contractors need a current one before starting any work. It's fair to ask any contractor coming in from another city about it before the job starts.
When does an insulation job need a California contractor license?
Under the Contractors State License Board's rules, a contractor needs a state license when the job needs a building permit, uses employees, or totals $1,000 or more in labor and materials together. A bigger job can't be split into smaller pieces to stay under that $1,000 line. We're fully licensed and insured.
How much does attic insulation cost in Gonzales?
There's no single price, because it comes down to what's already in your attic and what has to happen before new insulation goes in. Pulling out wet or dirty old material, sealing gaps, and choosing foam over blown-in all raise it, while a clean attic that only needs topping up costs less. I write all of it down at the estimate so you can see what you're paying for.
What causes a hot upstairs and cold floors in a Gonzales house?
Usually it's thin attic insulation and unsealed gaps upstairs, and bare framing under the floor downstairs. Air leaking around can lights, pipes and the hatch carries heat right past the insulation, so we seal those first and then add insulation where it's thin. If something else is going on, I'll say so at the visit.
Talk to us about your Gonzales house
We answer the phone seven days a week, into the evening, so call (831) 315-4005 after work or send the form when it suits you.




