Cold floors and drafts coming up through the floor usually start in the crawl space. We insulate it so the rooms above stay comfortable.
Crawl space insulation in Merced means one of two things. You can insulate the underside of the floor above the crawl space, or you can seal and insulate the crawl space walls so that space becomes part of the house. Either way, the cold under your house stops coming up through the floor.
Most calls start with something you feel, not something you've seen. It might be floors that are cold in January, a bedroom that never warms up or a power bill that climbs every winter. A lot of the older houses around Merced sit over vented crawl spaces with thin, sagging or missing insulation, and that's usually where the cold gets in. At Reliable Merced Spray Foam Insulation, I go under the house and look before we talk price, and if insulating isn't worth the money for your house, I'll tell you so.
The price mostly turns on which way we go, floor or walls, and on how big the crawl space is and how easy it is to move around down there. It also depends on what has to be dealt with first, like open gaps, pest damage or old pipe wrap. The schedule turns on that same prep work, plus a permit and inspection if your job needs one. I write all of it into the estimate, so you see your own figure and what it covers before you decide.
Here's who does what, from your first call to the last check before we leave.
Once you call or send a request, we set up a visit, and I'm the one who comes out. I go into the crawl space with a flashlight, take photos of what I find and write you an estimate that lays out what I saw and what I'd do about it.
California only lets someone without a contractor's license take on work under $1,000, and only when the job needs no permit and nobody else is working on it with them. We're licensed and insured, so that limit has no bearing on your job.
I learned this trade on another crew around Merced and started this business in 2017. Our own crew does the work in the order it needs to go, I check it over before we call it finished, and we leave your house clean when we pack up.
I start by showing you both ways to go, insulating the floor above the crawl space or sealing and insulating its walls, and I tell you which one I'd pick for your house and why. I'll also explain why just closing the vents isn't the answer, since a lot of people have heard it's the cheap fix. Once you've chosen, we check for problems, seal the gaps, put the insulation in, cover it where it needs covering and clean up, in that order.
Cold floors are often part of a bigger draft through the house. If the outside walls are thin too, I'll note it, and wall insulation can go on the same estimate. Our air sealing services close the gaps around pipes, wires and openings elsewhere in the house so the new insulation isn't fighting moving air. When the ground under the house stays damp, a crawl space vapor barrier usually belongs in the plan as well.
The order matters more than the material, because insulation laid over a pest problem or an open gap doesn't do its job.
Termites and carpenter ants like dark, damp places, and federal guidance calls for checking the foundation walls and framing for them before work goes forward, so that's the first thing I look at. Older crawl spaces can also have asbestos-based wrap on ducts and pipes. If we find any, we leave it alone until a certified asbestos abatement firm inspects it and decides how it's handled, so in an older house it's worth planning room for that step.
Federal guidance says holes around plumbing and wiring in the subfloor get sealed before any insulation goes in. If you skip that, the insulation ends up fighting a draft from day one.
On a floor job, we fit batts, which are blankets of insulation, tight between the joists, the beams that hold up the floor, because any gap or squashed spot lets the cold through. Insulation also has to keep a set distance from hot surfaces like a chimney or a recessed light. That distance comes from the fire code, the building code or the insulation maker, whichever is strictest, so if you have a chimney or appliances near the crawl space, ask me how we'll keep that gap.
Federal installer guidance calls for a rigid barrier over floor insulation that's open to the outside or to pests, and for fire-rated material when insulation on the walls is left exposed. Ask me whether yours will be covered, because that changes the product we use. When we're done, we haul out the scraps and leave the crawl space and the house clean.
Call (209) 308-1021 or send the form with your address, the rough size of your crawl space and anything you've noticed down there, like a gas appliance or old wrap on the pipes. We'll get back to you within one business day to set up a visit. I'll come out myself, and the on-site estimate is free with no obligation.
(209) 308-1021Across the US, insulating a crawl space usually costs about $3 to $6 per square foot. That's the going rate nationally, not our price, and your job will land wherever the approach and the prep work put it. Your own figure comes in the written estimate after I've been under the house, and every job is satisfaction guaranteed.
Federal guidance calls sealing and insulating the crawl space walls a best practice in every climate, though some homes do insulate the floor above instead. I lean toward the walls when ducts or water lines run down there, because sealing the walls brings them inside the house with you. Either way, I'll compare both for your crawl space in the estimate so you can see the difference.
No. Federal guidance says turning a vented crawl space into a sealed, dry one takes more than shutting the vents, and closing them alone can make it damper down there. If a furnace or water heater that burns fuel draws its air from the crawl space, closing the vents could be deadly, so we plan the whole change before anything gets closed up.
The Merced County Building and Safety Division issues building permits and inspects construction in the unincorporated parts of the county, outside any city's limits. Which office covers your house depends on where it sits. We check whether your address falls under the city or the county, and if the job needs a permit, we take care of it and set up the inspection.
California's energy code splits the state into climate zones because the weather here ranges so widely. The standards for a home's outer shell, including its insulation, depend on the zone the house sits in. So what goes under a Merced house follows the standard for its zone, and I plan the job around that before I write the estimate.
We're based in Merced and work in many cities around it, north toward Modesto and south toward Madera, including Atwater, Livingston and Chowchilla. A lot of what we see is older houses on raised floors over vented crawl spaces, where the insulation has dropped or was never put in, and we follow the same steps whichever city you're in.
If you've seen old pipe wrap or a gas appliance down there, mention it when you call (209) 308-1021 or send the form, so I know what to check first.
If you have questions about what's under your floor, call or send a note and we'll talk it through.
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