Fast, Reliable Spray Foam Insulation Across Selma
Most pre-1980 homes in Selma have attic insulation of R-11 or less. That means a 150°F attic in July pushing heat straight down through your ceiling while the air conditioner runs nonstop. Closed-cell and open-cell spray foam fix that problem differently than fiberglass ever could, because they seal the air leaks that batts simply sit on top of. Our crews work Selma weekly, from the older bungalows off Rose Avenue to the post-war tract homes near Floral Avenue and the newer subdivisions east of Highway 99. If you want a written price before any work starts, call (559) 785-2658. Glenn Hartley leads our team, and he answers for every job.
Why Woolsey Insulation Fresno Is Selma’s Preferred Spray Foam Insulation Company
Woolsey Insulation Fresno is part of the Kingswell family of independently owned and operated insulation companies, founded in 2002. We’re not a franchise and we’re not a national chain. When a Selma homeowner calls, a live person at our Central Valley office answers, 24 hours a day, seven days a week. No voicemail maze. No “we’ll call you back within two business days.” You get a person, and that person gets you scheduled.
Every job we install in Selma is backed by the 365-Day Done Right Promise. That’s in writing. If the spray foam isn’t right within 365 days, we come back and fix it at no charge. The same written guarantee applies to every repair and installation, including a free second visit if the work fails. We send background-checked, uniformed technicians to every Selma job, so you know exactly who is walking into your home. And before any crew member pulls up to your house, you’ll have a written price. Not an estimate that shifts at the door. A number on paper that doesn’t change.
Spray Foam Wall Insulation in Selma
Spray foam wall insulation in Selma typically runs $2.50 to $5.50 per square foot of wall area for closed-cell, and $1.00 to $2.50 per square foot for open-cell, depending on wall depth and access. The older the home, the more access matters. Many of Selma’s early 20th-century bungalows and 1960s-70s tract homes have empty wall cavities or settled fiberglass that does almost nothing. Closed-cell foam is the material that changes those walls.
Older Bungalow Walls
Homes built in the 1920s near downtown Selma often have plaster and lath over open stud bays with zero insulation. Closed-cell spray foam adds R-6.5 to R-7 per inch and bonds to the plaster, stiffening the assembly without tearing anything out. We drill small access holes, inject the foam, and patch cleanly. The plaster stays.
Post-War Tract Home Retrofit
1960s and 1970s homes around Rose Avenue and Floral Avenue frequently have R-11 fiberglass batts in the walls that have slumped. Open-cell spray foam injected into those cavities fills the gaps and seals air movement at the same time. It’s the fastest way to stop the wall-driven heat gain that hits west-facing rooms every summer afternoon.
Rim Joist Spray Foam in Selma
Rim joist spray foam in Selma typically runs $8 to $15 per linear foot for a standard 2×10 rim joist bay. That’s a full air-seal and insulation package in one pass. The rim joist is the band of framing where your floor meets your foundation wall, and in Selma’s post-war tract homes it’s usually wide open to the crawlspace or basement. That’s a direct highway for 100°F outside air to leak into your floors and walls.
Why Old Tract Homes Need It First
Homes built in the 1950s through 1970s in Selma typically have no rim joist sealing at all. The fiberglass stuffed there, if any exists, has usually been chewed through or fallen out. Open-cell foam sprayed into the rim joist cavity expands to fill every gap, cuts off the air path, and holds an R-13 to R-21 value depending on depth.
Garage and Crawlspace Rim Joists
Attached garages on Selma homes with crawlspace foundations are common. The rim joist above the crawlspace and between the garage and living space leaks air all year. Sealing it with spray foam stops the dust, the hot air in summer, and the damp rot-prone air in winter. It’s one of the cheapest per-dollar comfort improvements we do.
Trusted Brands We Service in Selma
We install and service spray foam using materials from Owens Corning, Johns Manville, Icynene, and Demilec, among others. That matters because Selma homes are not all the same. A 1920s bungalow with plaster walls needs a different foam than a 1990s subdivision home with OSB sheathing. We stock the specific product lines that fit the job, and local Selma crews keep fast turnaround on common open-cell and closed-cell kits. The material follows the house, not the truck.
Common Spray Foam Insulation Problems We See in Selma Homes
- Settled 1960s-70s batts under 4 inches thick. Original fiberglass in pre-1980 Selma attics often compresses to R-8 or worse. Rodents tunnel through it, leaving thermal bypasses that show up as hot ceilings.
- Open rim joists in crawlspace homes. Many post-war tract homes in Selma have exposed rim joist bays that leak unconditioned air directly into the house. That shows up as hot floors in summer and cold drafts in winter.
- Uninsulated wall cavities in pre-1940 bungalows. Plaster and lath homes near downtown Selma frequently have zero wall insulation. Closed-cell foam fixes that without destroying the plaster.
- Attic temperatures above 150°F in summer. R-11 attics in Selma regularly hit 150°F or more. Spray foam’s air-sealing is what stops that heat from radiating through the ceiling, which fiberglass alone cannot do.
Pricing for Spray Foam Insulation in Selma, CA
Open-cell spray foam in Selma runs $1.00 to $2.50 per square foot at standard attic depths. Closed-cell runs $2.50 to $5.50 per square foot. Rim joist work runs $8 to $15 per linear foot. A typical 1960s Selma tract home attic retrofit with open-cell to R-38 lands between $4,200 and $7,800. A rim joist job on a 1,200-square-foot crawlspace home usually lands between $1,800 and $3,400. The written price comes before any work starts. Call (559) 785-2658 and we’ll give you the exact number for your house.
We Also Serve Cities Near Selma
Our Selma crews also handle Spray Foam Insulation work in Parlier, Kingsburg, Reedley, and Sanger. If you’re just outside city limits, call us. We’ll confirm coverage and give you the same written price before any work begins. You can also see our full local coverage for Selma and surrounding Central Valley communities.
Serving Selma, CA - Our Local Coverage Area
We’re based in the Selma area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Spray Foam Insulation in Selma
Post-war tract homes in Selma were built before rim joist sealing was standard practice, so the band joist between floors is usually wide open to the crawlspace or outside air. Newer subdivisions typically have some form of sill seal or rim joist treatment from the start. In an older Selma home, the rim joist is a major air leak that lets 100°F air press into the house all summer. Spray foaming it closes that leak and adds insulation in one step. Call (559) 785-2658 for a rim joist inspection and written quote.
No. Spray foam needs direct contact with the surface it’s sealing. Old settled fiberglass has to come out first, especially if it’s been rodent-damaged or compressed. On a 1962 tract home near Rose Avenue, our crew found original batts settled to under 4 inches with rodent tunnels through them. We removed the compromised material, air-sealed the attic floor, and sprayed 5 inches of open-cell foam to hit R-38. The homeowner’s July cooling load dropped by nearly a third. We do the removal and disposal as part of the job.
They change the priority. In Selma, the attic is the biggest heat source in the house. We recommend a minimum of R-38 in the attic plane, and spray foam gets there with about 5 to 5.5 inches of open-cell. The air-sealing matters as much as the R-value. Fiberglass batts at R-38 still let air move through them, but spray foam stops the airflow, which is what actually keeps the 150°F attic heat from pressing into your ceiling.
No, when installed correctly. We drill small access holes, typically 1 to 2 inches, and inject closed-cell foam at a controlled rate. The foam expands gently and bonds to the plaster and lath, adding structural rigidity. We’ve done this in Selma’s older bungalow neighborhoods without cracking plaster. The key is using the right foam density and not overfilling the cavity. Our technicians are trained on legacy plaster construction specifically because so many Selma homes have it.
The attic air-seal plus open-cell spray foam to R-38 is the fastest payback. Over 40% of Selma’s housing stock predates 1980, and R-11 attics mean the ceiling is the biggest heat leak in the house. Getting to R-38 with open-cell foam and sealing the attic floor in the same pass typically cuts cooling costs faster than any other single project. Most Selma homeowners see the difference within the first summer. Call (559) 785-2658 for a written quote on your attic.
Ready to fix the real problem? Call Woolsey Insulation Fresno at (559) 785-2658. We’ll schedule a visit, inspect your attic or walls, and give you a written price before any work starts. The Kingswell Guarantee covers every Selma job: written price, committed arrival window, clean job site, written guarantee, and a free return visit if anything fails within 365 days. Glenn Hartley and our Selma crews answer for every square foot.
Written by Glenn Hartley, Owner at Woolsey Insulation Fresno, serving Selma and the Central Valley.