Insulation contractor in Novato, CA - warmer floors and cooler rooms upstairs
H&M Windsor Spray Foam Insulation is an insulation contractor working in Novato, CA. We seal the gaps in your attic and crawl space, then insulate them, along with walls and the room over the garage.
- Licensed and insured.
- Free quotes on site.
- We reply within 1 business day.
Insulation work in Novato homes, start to finish
The short answer: Yes, H&M Windsor Spray Foam Insulation takes insulation jobs in Novato. We're an insulation contractor based in Windsor, CA, and I come down to look at each house myself. We handle everything from a thin attic to a damp crawl space, and we seal the gaps before we add anything.
Novato sits at the south end of the area we cover, a little past Petaluma, and the calls we get from here sound like the ones we get everywhere else. Someone has cold floors in the kitchen, a bedroom upstairs that won't cool down, or an attic they've never actually looked in. I start by asking what bothers you and which rooms, because that usually tells me where the air is getting in before I even open the hatch.
Many of the houses we see here are older, with a crawl space under the floor and an attic holding whatever the builder put there years ago. Others are newer and have a bonus room over the garage, and that changes where we start.
Why Novato attics and crawl spaces need a closer look
In an older attic the insulation has usually settled to a few inches, and it's often pushed back at the edges where someone crawled through to run cable. Warm and cool air slip out around can lights, pipes and the hatch, so the rooms below fight the weather all day. Sometimes the old insulation is buried right up against the eave vents too, and then the attic can't breathe and moisture starts showing in the framing. We clear the vents, seal the gaps and then add insulation evenly, with full depth at the edges and not just a pile in the middle.
Cold floors usually trace back to the crawl space or the garage. If there's little or nothing under the subfloor, the floor sits right over open air, so we insulate under it and cover the ground when it's damp.
Insulation services we offer in Novato
Spray foam insulation
Spray foam fits when the ductwork runs through your attic or the space is tight, because it seals air and insulates in one pass, though it costs more.
Attic insulation
If the upstairs bedrooms run hot or the power bill climbs, we check how many inches are already up there and build it back up evenly, edges included.
Blown-in insulation
Blown-in insulation, loose fill sent up through a hose, is usually the best value for an open Novato attic once the gaps underneath are sealed.
Home insulation
When the whole house feels drafty and you're not sure where to start, we look at attic, walls and floors together and tell you what comes first.
Insulation removal
Old insulation that got soaked or holds rodent droppings has to come out first, because new material on top just buries the problem.
Crawl space insulation
Cold floors in a house over a crawl space usually mean little is between the subfloor and the open air, so we insulate under the floor.
Wall insulation
Exterior walls in older houses are often empty or settled halfway down, and we can fill them through small holes without tearing out the drywall.
Air sealing services
Air sealing, closing gaps before insulating, goes after drafts through the whole house, from outlets on outside walls to plumbing holes under sinks and down into the crawl space.
Basement insulation
If your house has a basement or a below-grade room that stays damp and chilly, we insulate those walls with a material that handles moisture.
Closed-cell foam insulation
Closed-cell foam, a dense foam that blocks moisture, is the pick for crawl space framing, basement walls and spots where dampness is the real worry.
Open-cell foam insulation
Open-cell foam is softer and lighter, and it fills odd-shaped cavities in vaulted ceilings and bonus rooms and quiets sound between rooms, for less than closed-cell.
Commercial insulation
For small offices, shops and rental buildings in Novato, we plan the work around your open hours so our crew stays out of your tenants' way.
Crawl space vapor barrier
A bare dirt crawl space sends moisture up into the floor framing, so we cover the ground with heavy plastic and seal the seams.
Vapor barrier installation
When new insulation goes into walls or ceilings, a vapor barrier can keep moisture from working into it, and we check first whether your house needs one.
Attic air sealing
Can lights, the attic hatch and pipe holes leak house air into the attic, so we seal them before any insulation goes over the top.
Retrofit insulation
If you're living in the house and don't want a remodel, retrofit work adds insulation where it's missing, from the attic, crawl space or small wall holes.
Get a free on-site insulation estimate in Novato
Send us a request and we'll reply within one business day to set a time for me to come out to your Novato house. The estimate is free and done on site, and there's no obligation to go ahead once you have it in writing.
Working in Novato: permits, licenses and what moves the price
Building permits in Novato come from the city's Building Division, which reviews plans and sends inspectors out, and whether your insulation job needs a permit is the division's call, so we talk it through with you at the estimate. If it does need one, we take care of the application and set up the inspections, and the permit and its inspection become part of the schedule. Before you hire anyone, ask for their state contractor's license and their Novato business license, because the city requires a business license to do business here. We're licensed and insured, and satisfaction guaranteed.
What moves the price is the same here as anywhere we work, from Novato up to Calistoga: how many inches are already in the attic, whether the old material is soaked or full of droppings and has to come out, how many gaps need sealing, and whether foam or loose fill fits the house better. The schedule mostly turns on removal and, when there is one, the permit. Your own figure comes on the written estimate after I've seen the house.
How the job goes when you call us in Novato
Most of the work happens before anyone climbs into your attic with a hose. I want you to understand what's going on in your house and why we're doing it in that order.
- Step 01
Call or send a request
Call (707) 687-4455 or use the form, and we'll set a time for me to come to your Novato house. It helps if you can be home, so you can show me the rooms that bother you.
- Step 02
Walk the house with me
I look in the attic and crawl space with you, count the inches already up there and check for wet or dirty material and buried vents, then explain what has to be fixed first. You get a written estimate, so the cost is on paper before anything starts.
- Step 03
Sort out the permit
If your job needs a permit, we apply with the city and book the inspections. You don't have to make those calls yourself.
- Step 04
Our crew does the work
Our install crew works with a lead installer on site, sealing the gaps first and then insulating, with full depth at the edges. If foam goes in, we tell you before the job day how long you'll need to stay out, so you can plan for the kids and pets.
Insulation questions we hear from Novato homeowners
Can I get an instant permit for insulation work in Novato?
Insulation isn't on Novato's instant-permit list. That path covers like-for-like residential jobs, which means water heater, HVAC and electrical panel replacement, reroofs, window and door replacement, and bathroom and kitchen remodels, and those permits are issued online once the city confirms them. That doesn't settle whether your insulation job needs a permit, so we go over it with you at the estimate.
How do I schedule a building inspection in Novato?
You request inspections through the city's online portal, Novato Permits, and only for a permit that's already been issued. The person asking has to be listed as a contact on that permit, and you need a portal account first. When we handle your permit, we book the inspections ourselves.
How much does insulation cost for a house in Novato?
It depends on what's in your attic and crawl space now, so I'd rather see them than guess, and the estimate is free. The biggest swing is foam versus loose fill. Foam costs more and seals air as it insulates, but sealing the gaps and topping up with blown-in usually comes out ahead unless your ductwork lives up in the attic.
Do we have to leave the house while spray foam goes in?
With spray foam, usually yes, for a stretch, because the foam gives off fumes while it cures. The re-entry time, meaning when you can come back inside, follows the foam maker's instructions, and we tell you before the job day. Blown-in work usually doesn't send you out of the house.
How long does it take to insulate an attic in Novato?
The biggest factor in how long the crew is up there is whether the old insulation has to come out first. Removal and cleanup come before any sealing or new material, and a job that needs a permit also waits on the city's inspection. I'll lay out the order of work at the estimate.
What causes cold floors in a Novato house with a crawl space?
Cold floors usually come from little or no insulation under the subfloor, plus air leaking up through gaps around pipes and wires. Sometimes insulation was put in years ago and has sagged or fallen down. We seal those gaps and insulate under the floor, and we cover the ground when the crawl space is damp.
Plan your Novato insulation job with us
We answer (707) 687-4455 seven days a week and into the evening, or you can send the request form whenever it suits you.