Cold floors in the morning
If the floor feels cold underfoot while the air in the room feels fine, there's usually little or nothing against the subfloor. Insulation fitted snug there stops the floor from pulling cold up from below.
Crawl space insulation in South Whittier CA - warmer floors, done in the right order
Cold floors or a drafty room over the crawl space? We sort out the vents first, then insulate where it will actually hold up.
- Licensed and fully insured.
- Free in-person estimates.
- We reply within 1 business day.
What crawl space insulation does for your floors
Crawl space insulation in South Whittier, CA puts batts, the pre-cut blankets of insulation, or spray foam against the floor over the unheated space under your house, or on that space's walls when it's sealed shut, so your floors stay warmer and the rooms above stay quieter.
If the floors feel cold in the morning or a room over the crawl space never warms up, what's under the house is usually part of it. Gaps in the floor often matter as much as the insulation, which is why air sealing, closing the holes air leaks through, is often part of the job. The price moves with how big the crawl space is, how easy it is to get under, whether old insulation has to come out and whether we use batts or foam. The schedule turns on the same things, plus anything that has to be settled first, like testing old pipe wraps or getting a permit from the county. We're based in South Whittier and take jobs in the cities around it, and your own figure comes from the estimate.
I look at it myself
I come out to look under your house and write the estimate myself. Our crew lead runs the install and I check in, so the plan you heard is the plan that gets done.
You see the price first
I want you to know exactly what you're paying for before we start, so the estimate spells out where the insulation goes, which material we'd use and what has to happen first.
Licensed and fully insured
California sets a license class just for contractors who install insulation for heat or sound control. We're licensed and fully insured, and we've been doing this work since 2013.
How we insulate under your house
The first thing I settle under a house is whether the crawl space stays vented or gets closed up, because that decides whether the insulation goes in the floor or on the walls. Our crew seals the holes where pipes and wires come through the floor before any insulation goes in, since a batt over an open hole just lets air slip around it. Batts get cut to fit tight between the floor joists, the beams the floor sits on, with no gaps or squashed spots, and wire supports hold them up against the floor so they don't sag. Foam costs more and seals air as it goes on, so it earns its price on the walls of a closed-up crawl space, but under most vented floors, sealed holes and snug batts do the job. When we're done, we clear out the scraps and show you what went in.
When a room still runs cold after the floor is done, the outside walls are usually next, and wall insulation takes care of those. Gaps around windows, outlets and the attic hatch leak the same way the floor did, and our air sealing services go after them.
Signs the space under your floor needs work
A room that won't stay comfortable
Rooms over the crawl space, like a back bedroom or a family room added on later, often run colder than the rest of the house. Insulating under them evens things out.
Noise coming up through the floor
Insulation in the floor slows sound as well as heat, so noise from under the house and from the yard outside the vents comes through softer in the rooms above.
Old batts hanging down
Batts that have fallen, sagged or gotten wet aren't doing much. We pull out what's ruined and put new insulation back tight against the floor instead of stuffing new over bad.
Get a crawl space estimate and a clear plan
Send the form and we'll get back to you within one business day to set a time. I come out, look under the house and write a free estimate, with no obligation to go ahead.
Tell us how old the house is
The age of the house tells me what to look for on old pipe and duct wraps, which can need checking before anyone works around them down there.
Mention anything that burns fuel
If a furnace, water heater or other equipment that burns fuel sits in the crawl space, let us know, because that changes what can safely be closed up.
Say if you want it closed up
If you already know you'd like the crawl space sealed, or you'd rather keep it vented, tell us, since that's the first decision and it shapes the whole estimate.
Crawl space insulation examples to compare
Example photos of batts wired up under a floor, foam on crawl space walls and sealed pipe holes, to help you picture the options.
Crawl space insulation questions we hear
Straight answers to what South Whittier homeowners ask before anyone goes under the house, from where the insulation goes to who issues permits.
Should I insulate the floor or the crawl space walls?
Insulate the floor if the crawl space stays vented, and the walls if it's being sealed shut. That's how one crawl space guide puts it, and the same guide warns that doing both creates a moisture trap. If you're not sure which way your house should go, that's the main thing we'll talk through at the estimate.
Can I just close my crawl space vents?
Not on their own. A federal guide on closing crawl spaces says sealing the vents without handling the other details can raise moisture down there, and with equipment that burns fuel and vents naturally in the crawl space, it can turn deadly. If anything burns fuel under your house, closing up has to be planned around it, and we look at that before quoting.
How much does crawl space insulation cost around Los Angeles?
Insulating a crawl space in the Los Angeles area usually runs about $1,700 to $7,500 per job. That's the going rate around here, not our price, and where a house lands depends mostly on the size of the space, what has to come out first and whether it's batts or foam. Your estimate shows our number. Satisfaction guaranteed.
Who issues building permits in South Whittier?
In South Whittier, Los Angeles County Building and Safety issues building permits, as it does across the county's unincorporated communities. Its South Whittier office in Norwalk has an intake phone line. State energy code guidance counts insulating a raised floor over a crawl space as an alteration to the house's shell. When a job needs a permit, we handle the paperwork and line up the inspections.
Could my older house have asbestos in the crawl space?
It can. Older crawl spaces sometimes have asbestos wraps on ducts and pipes, and if any turn up, a certified asbestos abatement firm has to inspect them and decide how they're handled. We don't work around suspect wraps, so if I see them at the estimate, I'll tell you to have them checked before we schedule the install.
Call me about what's under your floor
I still answer the phone at (562) 358-3003, so you can ask your crawl space questions to the person who'll come look.