Home insulation in Santa Rosa CA - an attic filled evenly to the right depth
Drafty rooms, a hot upstairs or a high power bill? We check your attic first, then add the insulation it's missing, in the right order.
Does my house in Santa Rosa need more insulation?
Home insulation in Santa Rosa usually means blowing loose-fill cellulose or fiberglass across an unfinished attic floor or into the closed wall cavities of an older house, so drafty rooms even out and the heat you pay for stays in the rooms you live in.
Most people call me about a drafty room, a hot upstairs, the room over the garage or a power bill that keeps climbing, and the attic is usually the first place I look. The price moves with how big the attic is, how many inches are already up there, which material you pick and whether anything old has to come out before new material goes in. The schedule depends mostly on what we find once we're up there and on whether the city needs to permit and inspect the job, and the estimate is where you get the figure for your own house.
What our home insulation work involves
I start by checking how high the old insulation sits compared to the joists, the framing boards the attic floor is built on, and whether any of it was soaked or is full of droppings, because new material laid over a problem just hides it. Then I help you choose between cellulose and fiberglass based on your house and what matters most to you. Before anything gets blown in, our crew does the air sealing, closing the gaps around can lights, pipes and the attic hatch, so the new insulation isn't fighting a draft. We keep the eave vents clear so the attic can still breathe, and we blow in the loose fill through a hose to an even depth that runs as deep at the edges as in the middle, since thin edges are where most attics come up short. With our name, you might expect me to push spray foam, and it does seal air while it insulates, but it costs more, so for most attics I'd rather seal the gaps and top up loose fill unless your ductwork runs up there. When we're done, we clean up and show you the depth we reached.
Some houses need more than an attic top-up. If the old layer was soaked or is full of droppings, insulation removal comes first so the new material starts clean. If your complaint is cold floors, the attic won't fix that, and crawl space insulation is usually where the answer is.
Why Santa Rosa homeowners call D&R Santa Rosa Spray Foam Insulation for home insulation
I look at every job myself
I come out to look at each job before we quote it, and when we install, our crew does the work with me running it on site. That means the person who saw your attic is the one making sure the plan gets followed.
City crew training, in business since 2023
Before I started this business in 2023, I spent years on a municipal crew doing insulation and air sealing on city buildings, where every job had to get past an inspector. That's where I picked up the habit of working in order and writing down what we find, so you can see what's in your attic and what we did about it.
Santa Rosa permits filed and inspections set
In Santa Rosa, the city's building official issues the permit you need to alter or repair a building unless the state building code exempts the work, and only licensed contractors or owner-builders can pull one. When your job needs a permit, we apply for it, set up the inspections and give you a copy of the paperwork for your records. If you have a question about your own job, the city's Building Division is the office that reviews plans, energy rules included, and inspects the work.
Licensed and insured, under state payment rules
We're licensed and insured, and California's Contractors State License Board is the agency that licenses and regulates contractors across the state. Its rules cap any down payment at $1,000 or 10 percent of the contract, whichever is less, with later payments tied to work done or materials delivered, which is worth knowing before you sign with any contractor.
On an insulation job, the order matters most, because insulation laid over a leak or a hidden problem is a pain to undo. If you've peeked in your attic, note whether you can see the joists and whether you spotted any vermiculite, a loose, pebbly fill, then call (707) 508-4085 or send us your details.
Get a free on-site home insulation estimate
We reply to every call and message within one business day, and the estimate is free, done at your house, with no obligation. Once you send this, we'll set a time for me to come out, look at your attic and walls, and walk you through what I'd recommend and why.
Insulation work up close
Questions before you book home insulation
How do I tell if my attic needs more insulation?
If the insulation sits level with or below the floor joists, so you can easily see them, you should add more. If the joists are buried well under it, you probably have enough, and adding more may not be worth the money. When I come out, I'll check how many inches are up there and tell you plainly which side you're on.
How much does it cost to insulate an attic in Santa Rosa?
Across the US, attic insulation usually costs about $1,700 to $2,500 per job, and that's the market's range for the attic, not our price. Where your house lands depends on the attic's size, what's already up there and the material you choose, and the on-site estimate is where you get your own number.
What is the best attic insulation, cellulose or fiberglass?
Cellulose costs less and slows air movement better, while fiberglass holds up better if it ever gets soaked, so the choice comes down to price against how much you worry about water. Cellulose is also heavier and settles more over time, which is why it isn't used on mobile home ceilings or floors, where lightweight fiberglass can go. I'll walk you through which one fits your house when I'm there.
What should I do if my attic has vermiculite insulation?
Leave it alone, because the EPA's advice is to assume vermiculite may contain asbestos and not disturb it. If you decide to have it removed, a trained, accredited asbestos abatement contractor should do that work, and it should be a different company from the one that assessed it. If I spot it at the estimate, we won't add or move anything on top of it.
Should I insulate my walls when I replace my siding?
Yes, if the wall is wood-frame and empty, ENERGY STAR advises blowing insulation into the cavity while the old siding is off and before the new siding goes on. It's the easiest time to get at those walls, so call us about wall insulation before your siding crew closes things up.
Can I blow in attic insulation myself?
You can, since installing blown-in insulation is considered intermediate-skill work, a step past beginner but within reach of a handy owner. The blowing is the easy part, and the prep and order described above are what decide whether it works.
Other insulation work your house may need
- Insulation removal
If the insulation up there was soaked by a leak or fouled by rodents, taking it out first keeps the old problem from staying under the new layer.
- Crawl space insulation
Cold floors often come from an open, uninsulated crawl space below them, so insulating under the floor can matter as much as the attic does.