Spray foam goes on wet and expands into every crack, so it insulates and seals air in one pass. It suits rooflines and tight spots loose fill can't reach.
Experienced Insulation Contractor in Rohnert Park CA - Even Temperatures in Every Room
T&S Rohnert Park Spray Foam Insulation insulates attics and crawl spaces in Rohnert Park and the cities around it, including Cotati and Petaluma. We also seal air leaks in drafty older houses and remove old, dirty attic insulation.
Book a free look at your attic or crawl space
We reply within one business day to set up a time. The estimate is free, done at your house, and there's no obligation to go ahead.
- Licensed and insured.
- Free in-person estimates.
- We reply within 1 business day.
Insulation contractor services in Rohnert Park, CA
Price comes down to how much area we're covering, what's already up there and whether old material comes out first. Prep and access set the schedule, and your free estimate covers both.
Hot upstairs or drafty rooms? We seal the gaps in your attic floor first, then add insulation that's as deep at the edges as it is in the middle.
Blown-in insulation is loose fill we blow through a hose across the attic floor. It's the usual way to bring a thin, patchy layer up to an even depth.
Not sure where your house is losing heat? We look at the attic, walls and crawl space together and tell you which one is worth fixing first.
When old insulation is soaked or full of droppings, we vacuum it out and clean up before anything new goes in, so the problem doesn't stay buried.
Cold floors usually start in the crawl space. We insulate between the floor joists under your house, so the rooms above stay warmer and less drafty.
We fill closed walls in older houses by drilling small holes, blowing insulation in and patching them, so you don't have to tear out drywall.
Air sealing means closing the gaps where indoor air slips out, around pipes, wires, outlets and doors. Insulation slows heat, but it won't stop a draft on its own.
Have a basement or a room that sits partly below ground? We insulate its walls and the framing on top of the foundation, so the space stops feeling like a cellar.
Closed-cell foam is dense foam that also blocks moisture. That makes it a good match for crawl spaces and other spots where both damp and air get in.
Open-cell foam is the softer, lighter spray foam. It fills odd-shaped cavities, cuts noise between rooms and usually costs less than closed-cell.
We also insulate offices, shops and small commercial buildings, working in the same order we use on houses, sealing first and insulating second.
A crawl space vapor barrier is heavy plastic laid over the dirt under your house. Ground moisture stays down there instead of rising into the floor and insulation.
When moisture keeps getting into framing or insulation, we put in a vapor barrier, a sheet that holds damp back, in the walls or ceilings that need one.
Why seal the attic before insulating? Gaps around can lights, pipes and the hatch leak air through any depth of fill, so we close them first.
Is your house already finished and lived in? Retrofit insulation goes in after the fact, so we work around drywall, wiring and stored boxes instead of open framing.
Why we fix what's hidden before we insulate
I started out as a helper on a small insulation crew, hauling bags and crawling through attics. The lead I worked under taught me to look at the whole house before selling anybody anything, and that stuck. When I opened this business in 2021, I built it around that habit, and there's more on how we got started.
Most of our calls come from people with a drafty room, an upstairs that won't cool down or an old attic they've meant to deal with for years. The fix is rarely just more insulation. We handle leaks, damp spots and open gaps first, so the attic insulation or crawl space insulation we put in isn't covering up trouble.
I'd rather tell you a job isn't worth the money than sell it to you. Spray foam costs more, but it seals air while it insulates, and that pays off when your ductwork runs through the attic. Otherwise, sealing the gaps and topping up with blown-in insulation usually wins, and I'll show you photos of what's up there so you can see why.
What shapes insulation work in Rohnert Park
A few things about Rohnert Park shape an insulation job before anyone climbs into the attic. Here's what I'd want you to know about permits, licenses and the ground under your house.
Permits from the city
The City of Rohnert Park Building Division issues permits for work that alters, repairs or improves a building, so it's worth asking whether your job needs one. When it does, we apply for it, keep you posted and set up the inspections. If it's not clear, we check with that office before work starts.
A state contractor license
The Contractors State License Board requires a current license from anyone contracting on a job that needs a permit, uses hired workers or runs $1,000 or more in labor and materials combined. The city also requires a business tax certificate from any company working inside its limits. We're licensed and insured, and it's fair to ask any crew you're considering about both.
Ground that swells and shrinks
Rohnert Park sits on highly expansive soil, ground that swells when it's wet and shrinks as it dries, and gutters, downspouts and splash blocks help keep rainwater away from foundations. Water that collects along the foundation often finds its way into the crawl space, so I check for damp spots under the house before anything gets insulated.
What happens after you reach out
Here's how a job goes from your first call to the final walk-through, so you know who you'll talk to and what you'll see along the way.
- 1
Call or send a message
Call (707) 576-6028 or send the contact form with a few words about what's going on, like a hot upstairs or cold floors. We'll get back to you within one business day to set up a time.
- 2
See what's really up there
I come out for every estimate myself, climb into the attic or crawl space and take photos. Then we sit down, I show you what I found and what I'd do first, and it costs you nothing, with no obligation.
- 3
Let our crew do the work
On the day of the work, our crew lays down floor protection, handles the prep and does the install. Either I'm on site or one of our lead installers is running the day, so you'll always know who to ask.
- 4
Walk through the finished job
Before we pack up, I walk through the finished job with you, show you the sealed gaps and the coverage out to the edges, and answer anything you're still wondering about.
Insulation work up close
A look at the kinds of work this trade covers, from blown-in fill across an attic floor to spray foam in open framing and plastic barriers in crawl spaces.
Questions homeowners ask about insulation
How much does insulation cost in Rohnert Park?
It depends mostly on the size of the area, the material that fits your house and how much prep it needs. Pulling out soiled insulation, sealing a lot of gaps, adding a crawl space barrier or choosing spray foam over blown-in fill all raise the total. The free estimate at your house gives you the figure for your job.
How long does it take to insulate an attic?
It depends on the size of the attic and how much has to happen before new insulation goes in, so I'll give you a realistic schedule at the estimate. Clearing out old material and sealing gaps take time up front, and if your job needs a permit, the inspections set part of the timing too.
Do I have to leave the house during spray foam insulation?
Usually yes, until the re-entry time passes, which is when it's safe for you, the kids and the pets to come back inside. We'll go over that wait for the product we're using before work day, so you can plan around it. Blown-in insulation usually doesn't mean leaving home.
How do I get my attic ready for new insulation?
Clear a path to the attic hatch and move anything stored right below it, because the crew will be going up and down a lot. If you keep boxes up in the attic, we'll talk at the estimate about moving them, so the whole floor can be sealed and covered.
Should old insulation be removed before adding new insulation?
Only when it's soaked, full of droppings or packed flat, because laying fresh material over a problem keeps the problem in your house. Dry, clean insulation can usually stay, and we top it up. I'll show you photos so you can see which you've got, and our insulation removal page explains the cleanout.
Do you do insulation work in cities near Rohnert Park?
Yes, we're based in Rohnert Park and work across Sonoma and Marin counties, including Santa Rosa, Petaluma, Novato, Cotati, Windsor, Healdsburg, Larkfield-Wikiup, Sebastopol, San Rafael, Sonoma and Corte Madera. We work in plenty of other cities nearby too, so just ask.
Tell us what's going on in your attic
Call (707) 576-6028 or send the form with a few words about the drafty room or old attic you're dealing with. We reply within one business day to set up a free estimate.