Crawl space insulation in Norman OK - warmer floors over a dry, sound crawl space
Cold floors, a musty smell or a high power bill can start under the house. We fix the crawl space so your floors stay comfortable.
- Service
- Crawl space insulation
- Call
- (405) 561-8031
How can you tell your crawl space needs work?
Floors cold underfoot
If the rooms over the crawl space never feel warm in winter, the insulation under them is usually thin, missing or hanging loose, so cold air sits right against the floor. Every month you wait, you're paying to heat the dirt under the house.
A musty smell inside
That smell is usually damp air from under the house drifting up through gaps around pipes and wires. Left alone, the same moisture gets into the floor framing, and wet wood is a bigger repair than insulation.
Insulation hanging down
When you open the access door and see batts sagging or lying on the ground, they've usually soaked up water and gotten too heavy to stay put. Wet insulation holds water against the wood, and putting new material over it just keeps the problem.
What does crawl space insulation in Norman involve?
Crawl space insulation in Norman means one of two jobs. We either insulate the underside of the floor above a vented crawl space, or we seal the crawl space and insulate its foundation walls so it works more like a small, dry basement under your house. Either way, the goal is warmer floors, less outside air leaking up into your rooms and wood that stays dry.
Most people call Insulcraft Norman Spray Foam Insulation about a crawl space because the floors are cold or the house smells musty, and we hear it from homeowners and landlords in Norman and in cities all around it across the Oklahoma City area. The price mostly comes down to how big the space is, which of the two ways we go and how much old or wet insulation has to come out first, and the schedule turns on that cleanup and on how easy the space is to get into and crawl around. I walk it, show you what I find and write it up so you can compare it with anyone else's estimate.
Details to note before an estimate
- Rough size of the crawl space
- Vents on the outside walls
- Any gas furnace or water heater down there
- Damp spots, standing water or musty smells
How we handle crawl space insulation
I start every crawl space job on my back with a light and a camera, because the big choice is whether to insulate the floor above or seal up the whole space, and the answer depends on how damp it is down there and whether anything burns fuel, like a gas furnace or water heater. I lay out both options with that in mind, and you pick. Then our crew pulls out any insulation that's wet, sagging or full of droppings, since new material over a soaked mess just keeps the problem in place. On a floor job, we seal the gaps around pipes, wires and ducts first and fit the insulation snug to the underside of the floor so it stays up. On a sealed space, national building guidance calls for a plastic sheet that slows moisture over the ground and walls before foam boards go on the foundation, so that's part of the plan I'll walk you through.
A crawl space is only one part of the house. If you still feel drafts at outlets, baseboards or the attic hatch, our air sealing services close the gaps the crawl space job doesn't reach, and if the rooms above stay chilly once the floor is done, the wall insulation may be thin or missing. I'll tell you what I noticed while I was there, and you decide whether any of it is worth doing now.
Other work that often goes with it
Air sealing services
Heated and cooled air slips out through small cracks around windows, outlets and hatches no matter how much insulation the house has, so closing them is often the cheapest fix for a drafty room.
Wall insulation
Outside walls in older homes are sometimes nearly empty, which keeps a room cold even after the floor and attic are taken care of.
What happens after you call about your crawl space
Call or send a message
Call (405) 561-8031 or use the form, and we'll set up a time for me to come out. Tell us whether the crawl space has vents and anything you've noticed, so I know what to look for.
I walk the crawl space
I come out myself, go through the crawl space, take photos and explain what I see before I suggest any work. You get a written estimate with both options and what each one covers, so you know the price before anything starts.
Our crew does the work
A crew I've trained handles whatever has to come first, like pulling wet insulation, then seals the gaps and puts in the insulation. We keep the work to the plan you agreed to.
I check it before we finish
I go back down and check the finished work against what we agreed on. Then I show you the photos, so you know what's under your floor and why it's there.
Questions before you book crawl space insulation
What is the best way to insulate a crawl space, the floor or the walls?
National energy guidance calls sealing the crawl space and insulating its foundation walls a better approach than insulating under the floor of a vented crawl space, which was the standard way for years. Building America research on sealed crawl spaces found lower heating and cooling use and noticeably drier air in the house. Floor insulation still fits some houses, so I show you both before you choose.
Can I just close my crawl space vents to keep moisture out?
Usually not on their own, because national guidance warns that blocking the vents alone can make a crawl space damper. It can also be deadly if a gas furnace or water heater down there draws the air it burns from the crawl space. Closing up a crawl space means dealing with the whole space and that equipment, and the space still needs a way to dry out, often a small amount of air the house already heats and cools.
How much does crawl space insulation cost in Norman?
Insulating a crawl space in the Oklahoma City area usually costs about $1,400 to $6,300 per job. Sealing the whole space usually lands higher than insulating the floor, and wet or fallen insulation that has to come out first adds to it. I'll give you a written figure for your house after I've been down there.
What causes a damp, musty crawl space?
Research shows that in mixed or hot, humid climates, vented crawl spaces tend to get damper rather than drier, because humid outside air comes in and its moisture condenses on the cooler floor framing. That damp feeds mold and rot in the wood, which is often the smell you notice upstairs. I find where the moisture is coming from before we cover anything.
Does spray foam in a crawl space make termite inspections harder?
It can, and an extension service in Mississippi says spray foam makes termites much harder to inspect for and spot. National installer guidance calls for leaving an inspection gap between the top of the wall insulation and any wood where termites are a concern. If you're weighing foam, ask whether the plan leaves that gap and how the space will be checked afterward, and I'll answer both before you decide.
Do I need a permit to insulate a crawl space in Norman?
The City of Norman issues building permits for residential construction, and its applications and checklists are on the city's permits page, so that's where to ask about your job. Permit rules differ from city to city, so we check with the city before work starts, and when a job calls for a permit we pull it or walk you through getting one. If your project includes electrical, mechanical or plumbing work, like moving a duct, Norman's trade license for that work requires an active state license from the Oklahoma Construction Industries Board, and we're licensed and insured.
Get a written crawl space estimate you can compare
We reply to every call and message within one business day to set up a free visit, and there's no pressure to book. I come out myself, look through the crawl space with you and leave you a written plan you can hold up against anyone else's.
Explore our services and areas
Services
- Spray foam insulation
- Attic insulation
- Blown-in insulation
- Home insulation
- Insulation removal
- Wall insulation
- Air sealing services
- Basement insulation
- Closed-cell foam insulation
- Open-cell foam insulation
- Commercial insulation
- Crawl space vapor barrier
- Vapor barrier installation
- Attic air sealing
- Retrofit insulation
Have someone look under your floors
Wet insulation keeps holding water against your floor framing until it comes out, so it's worth a look sooner rather than later.