Insulation Contractor in Norwalk, CA - Fixing Hot Rooms at the Source
Landmark Cudahy Spray Foam Insulation is an insulation contractor working in Norwalk, CA. We find out why a room stays hot or drafty, then seal the gaps, clear out bad insulation and insulate attics, walls and crawl spaces.
- Licensed and insured.
- Free quotes on site.
- Expect a reply within 1 business day.
Insulation work across Norwalk's neighborhoods
As an insulation contractor based in Cudahy, we're a short drive from Norwalk, and the calls we get here sound a lot like the ones from Downey and Bell. People tell us about a back bedroom that never cools off, a room over the garage that's hot by afternoon, cold floors or a power bill that keeps climbing. Most of what we get into here is single-family houses on residential streets, along with some apartments and small shops, so we work for homeowners, landlords and business owners alike.
When a house has had a few owners, the attic usually has a history, with a couple of layers of old insulation, a can light someone cut in or a bathroom fan venting into the attic instead of outside. That's why I go up there myself before I quote anything, because what's already in the attic decides what the job really is.
Insulation work we do in Norwalk
Spray foam insulation
When your ductwork runs through a hot attic, spray foam on the underside of the roof keeps those ducts from baking all afternoon.
Learn more about Spray foam insulationAttic insulation
Most hot-upstairs calls in Norwalk start here. We check how many inches are already up there, seal the gaps and then build the depth back evenly.
Learn more about Attic insulationBlown-in insulation
Blown-in insulation is loose fill sent through a hose, so it reaches the low, tight corners of single-story attics where rolls never fit.
Learn more about Blown-in insulationHome insulation
If the whole house runs drafty or hot, we look at the attic, walls and floors together and fix them in the right order.
Learn more about Home insulationInsulation removal
Insulation soaked by an old roof leak or full of rodent droppings comes out first, because new material laid on top just hides the problem.
Learn more about Insulation removalCrawl space insulation
Cold floors in a raised house usually trace back to the crawl space, where we insulate under the floor without blocking the vents.
Learn more about Crawl space insulationWall insulation
Plenty of older stucco houses still have empty wall cavities, and we can fill them through small holes without tearing the walls open.
Learn more about Wall insulationAir sealing services
We close the gaps around pipes, wires and the attic hatch first, because that air sealing often settles a drafty room on its own.
Learn more about Air sealing servicesBasement insulation
Basements are rare around here, but where a house or small building has one, we insulate the walls so it stops feeling damp and cold.
Learn more about Basement insulationClosed-cell foam insulation
Closed-cell foam is dense enough to block moisture too, so we use it on garage ceilings and crawl spaces where damp air is the bigger problem.
Learn more about Closed-cell foam insulationOpen-cell foam insulation
Open-cell foam is softer and costs less than closed-cell, which makes it a good fit for roof decks and walls where noise matters too.
Learn more about Open-cell foam insulationCommercial insulation
For Norwalk shops, offices and rental buildings, we plan the work around your business hours so tenants and customers aren't put out.
Learn more about Commercial insulationCrawl space vapor barrier
A heavy plastic sheet laid over the crawl space dirt keeps ground moisture from rising into the floor framing and the insulation above it.
Learn more about Crawl space vapor barrierVapor barrier installation
We add a vapor barrier where your house needs one and skip it where it would trap moisture, since one in the wrong place does harm.
Learn more about Vapor barrier installationAttic air sealing
Can lights, plumbing stacks and the hatch leak attic air into your rooms, so we seal them before new insulation covers them up.
Learn more about Attic air sealingRetrofit insulation
Adding insulation to a house people already live in is most of what we do, working through small hatches and around stored boxes.
Learn more about Retrofit insulation
What Norwalk attics and crawl spaces ask for
The attics on single-story houses here are often low at the edges and tight at the eaves, and that's where insulation tends to go thin and vents get buried. Once the eave vents are covered, the attic can't breathe and moisture starts showing in the framing, so we set a guard at each vent to hold it open and build the edges up to full depth instead of piling it all in the middle.
A lot of houses have been added onto over the years, and the seam where an addition or a room over the garage meets the old roof is usually where drafts and heat get in. I track those spots down first, because insulation can't do its job while air is rushing past it.
Get a free on-site insulation estimate in Norwalk
Put in your address and what's bothering you, and we'll reply within one business day. I come out myself to look at the space and walk you through what I found, free and with no obligation.
Norwalk insulation questions we hear
Does an insulation contractor in Norwalk need a California license?
Yes, for nearly every insulation job. The Contractors State License Board requires a current license from anyone who contracts for work on a project that needs a building permit, uses employees, or comes to $1,000 or more in labor and materials combined. We're licensed and insured, so ask me for our license details when I come out for the estimate.
Can a handyman insulate my attic in Norwalk without a license?
Only on a small job that meets every one of the state's conditions: no building permit, no employees, no advertising as a licensed contractor, and less than $1,000 in labor, materials and everything else combined. The state raised that limit from $500 to $1,000, and if you're insulating your own house yourself, the board says owner-builders may be exempt from the license.
Do I need a permit for insulation work in Norwalk?
We check that for your address before any work starts, because rules differ between cities and County areas and the answer can change with the job. When a permit is needed, we handle the paperwork and line up the inspection, and the work has to meet Title 24, California's statewide building code.
How much does attic insulation cost in Norwalk?
The price comes down to what's already in your attic and what has to happen before new insulation goes in, so I give you a figure after I've seen it. Pulling out soaked or dirty insulation, sealing a lot of gaps, a tight attic that's hard to crawl through and choosing foam all raise it, while a clean attic that only needs topping up costs the least. Foam seals air as it insulates, but unless your ductwork runs through the attic, sealing the gaps and topping up loose fill usually gets you more for the money.
How long does attic insulation take, and when can my family come back inside?
How long the crew is up there depends on the attic's size, how hard it is to get around in and whether old insulation has to come out first. With sealing and blown-in fill you can usually stay home, but with spray foam everyone, kids and pets included, stays out until the re-entry time, the hours the foam maker says to wait, and I'll tell you that before we book.
What causes a hot room upstairs or over the garage in a Norwalk house?
Usually it's air leaking in, not just missing insulation, through gaps around can lights, pipes and the hatch or an open seam where an addition meets the old house. A room over the garage often has thin insulation in the floor and the short side walls too, so I check those spots before I suggest adding more material.
Want me to look at your attic?
I'll come out, look at the space in person and walk you through what I found, free and with no obligation.
Other cities we work in
Pick your city below to see how we work there, or call (213) 338-1994 if yours isn't listed, since we work in plenty of cities near Cudahy.