Insulation Company in Clovis, CA
Clovis insulation work has a distinct pattern: homes built quickly during the city’s rapid expansion after 1990 often left the factory with thin fiberglass batts that have since settled, shifted, or been chewed through by rodents. Add Central Valley summers that push past 100°F and you get attics that cook, air conditioners that run constantly, and monthly utility bills that make homeowners wince. Woolsey Attic Insulation focuses on attic and spray foam insulation for Clovis homes, with written pricing before any work starts and a 365-day guarantee on every job. Call (559) 785-2658 and a live person answers, any hour.
Why Clovis Homes Are Different
Clovis grew fast. The post-1990 building wave produced thousands of single-story, wood-frame ranches with standard 2×4 walls, large accessible attics, and ceiling insulation that rarely exceeded R-19 when it was installed. Time and heat have not been kind to that original material. Fiberglass batts sag, separate at the seams, and lose their loft. In newer subdivisions around Harlan Ranch and Loma Vista, we regularly find blown-in cellulose from the early 2000s that has settled 30 to 40 percent below code, leaving hot spots that a thermal camera picks up in minutes during a summer afternoon. Clovis homeowners also tend to have uninsulated garage walls, which turns attached garages into heat radiators that warm the whole house by late afternoon. The good news is that most Clovis attics are roomy and straightforward to work in, which keeps retrofit projects efficient. The bad news is that the original insulation is often doing almost nothing, and the air leaks around can lights, plumbing penetrations, and attic hatches have been leaking conditioned air for twenty years or more.
Our Main Clovis Services
Clovis homeowners call us about two things most often: bringing attic insulation up to current recommended levels, and sealing problem areas with spray foam. Each service has its own Clovis page with pricing, local conditions, and what to expect.
Attic Insulation in Clovis
Most Clovis attics need more than a top-off. We remove or assess what is already there, air seal the gaps, and bring the ceiling to R-38 or higher, which is where Central Valley summers actually start to feel manageable. Blown-in fiberglass and cellulose are common choices here, and settled material from the early 2000s often needs to be fluffed, removed, or built over. If your attic is baking your upstairs rooms every July, call us before you replace the air conditioner. Details, brands, and Clovis pricing are on the Attic Insulation in Clovis page.

Spray Foam Insulation in Clovis
Spray foam, a two-part liquid that expands on contact and seals gaps airtight, works well in Clovis because it addresses the air leaks that fiberglass simply covers. We see spray foam used most often on attic rooflines, garage ceilings, and rim joists in the 1980s and 1990s ranches that dominate Clovis’s older neighborhoods. It is also the right tool for sealing around recessed lights and duct chases before blown-in insulation goes on top. See the Spray Foam Insulation in Clovis page for what the material can and cannot do here.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Clovis
We work with eight leading insulation brands, including Owens Corning, Johns Manville, Knauf, and Rockwool, and we match the material to the house rather than installing whatever happens to be loaded on the truck. Stocked locally and available without long lead times, most Clovis jobs are ready to schedule within days. See our brands for the full list and what each one does best.
Pricing for Insulation Company in Clovis, CA
Every Clovis attic is different, but the range below reflects what we see most often. We give you the exact written number before any work starts, no exceptions.
| Service | Typical range in Clovis |
|---|---|
| Air sealing + attic insulation upgrade (full attic) | $2,500 – $5,900 |
| Spray foam insulation (attic, walls, or rim joists) | $4,800 – $11,000 |
| Attic insulation removal and replacement | $2,100 – $4,100 |
| Blown-in fiberglass attic insulation (1,200 sq ft) | $1,800 – $2,900 |
| Blown-in cellulose attic insulation (1,200 sq ft) | $1,900 – $3,200 |
| Attic air sealing only | $1,100 – $2,300 |
| Radiant barrier installation | $1,500 – $3,000 |
| Garage ceiling insulation (blown-in or batt) | $900 – $1,800 |
What pushes a Clovis job toward the top of the range? Attic hatches that need rebuilds, settled cellulose that must be vacuumed out first, multiple can lights to seal, and attached garages with zero insulation all add labor. The written price we hand you covers the whole job, and the 365-Day Done Right Promise means if something is not right within a year, we come back and fix it at no charge.
Neighborhoods We Serve in Clovis
We work across the full Clovis footprint, from the established 1980s ranches near the center of town to the newer subdivisions pushing east and north. Most Clovis jobs are within a 20 to 30 minute drive for our local crews.
- Harlan Ranch
- Loma Vista
- Clovis East / Buchanan area
- Old Town Clovis and the neighborhoods around it
- North Clovis near Shepherd Avenue
Service Area – Cities Near Clovis
Our Clovis crews also handle insulation work in nearby Central Valley cities. If you are just outside Clovis, we likely cover your street. Confirmed coverage includes Fresno, CA, Sanger, CA, Madera, CA, and Parlier, CA. If your city is not listed, call (559) 785-2658 and we will tell you directly whether we can get a crew to you.
Serving Clovis, CA - Our Local Coverage Area
We’re based in the Clovis 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 Insulation Company in Clovis
Most Clovis jobs are scheduled within a few days to two weeks, depending on material and crew availability. Emergencies, like a roof leak that soaked your attic insulation, get priority. Call (559) 785-2658 and we will give you a real arrival window in writing before the crew shows up.
Most attic insulation and spray foam work in Clovis does not need a permit or HOA approval, because nothing changes about the exterior of the home. If you are in an HOA like those covering Harlan Ranch or Loma Vista, check your rules, but interior attic work almost never triggers a review. We can walk you through what your specific neighborhood requires.
No. Woolsey is independently owned and operated under the Kingswell banner, with dispatch coordinated from our Fresno-area office for Clovis jobs. Glenn Hartley runs the operation, and every job carries the Kingswell Guarantee: a written price, a committed arrival window, a clean job site, and a written guarantee. That is the whole deal, in writing.
What happens when you call
- 1A real person answersNo phone trees - talk to a local insulation pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically same-day.
- 4You approve before work beginsNothing starts until you say go.
What Clovis Customers Say
"Drafty old house that never felt comfortable. After the attic and some air sealing it's a different place. On time, clean, and the quote didn't change. Wish I'd done it years ago."
- Dmitri Kozlov"Our old insulation was flattened and basically useless. They removed it, cleaned up, and blew in new. Furnace isn't running constantly anymore and the first bill already showed it."
- Carl Yeung"Showed up on time, laid down protection on the floors, and were careful going into the attic. Explained exactly what they were doing and why. House holds its heat so much better now."
- Preston Hale