Insulation Company in Clovis, CA
Thistledown Attic Insulation is the Clovis insulation company built for the way Clovis homes actually perform in a San Joaquin Valley summer. Clovis attics routinely bake past 150°F from June through September, and the city’s 1990s and 2000s tract homes were built to Title 24 code minimums that simply don’t match the real-world heat load under a concrete tile roof. We inspect, insulate, and air-seal attics across Harlan Ranch, Loma Vista, and Old Town Clovis, with a written price in your hand before any work begins. Call (909) 768-6501 and a live person picks up, day or night.
Why Clovis Homes Are Different
Clovis sits in Climate Zone 13, which means two things: summer attics that exceed 150°F and winter nights that dip below freezing under dense tule fog. That’s a two-direction performance problem. The same attic that cooks all afternoon has to hold heat in January, and original R-19 or R-30 fiberglass batts installed in 1995 or 2005 have been compressed by storage boxes, recessed lights, and two decades of gravity. In the big master-planned tracts like Harlan Ranch and Loma Vista, we see 1,800 to 2,800 square foot stucco homes with generous attic planes, and those planes absorb heat all day without a real release valve.
Concrete tile roofs make it worse. Tile absorbs sun heat and re-radiates it into the attic for hours after sunset, so the insulation never gets a true overnight cooldown the way an asphalt shingle roof allows. The air conditioner runs longer, the upstairs stays warm at 9pm, and the bill climbs. Older homes around Old Town Clovis often have even less, sometimes no wall insulation by modern standards, which makes the attic the single highest-leverage place to improve comfort. That’s the Clovis-specific reality we plan around on every job.
Our Main Clovis Services
Clovis homeowners call us most about two things: topping up settled attic insulation and upgrading problem attics with spray foam. Each service has its own Clovis page with full pricing, process, and what to expect.
Attic Insulation in Clovis
Attic insulation in Clovis is usually about fixing what’s already up there. Original R-19 or R-30 batts have settled, compressed, or been pushed aside by cable runs and stored holiday decorations, and the result is a ceiling that radiates heat into the house by late afternoon. We remove or top up the old material, air-seal penetrations like can lights and bath fans, and blow in fresh coverage matched to your home’s square footage and roof type. Concrete tile roofs in newer tracts need a little more attention because they hold heat into the evening. All the specifics are on the Attic Insulation in Clovis page.
Spray Foam Insulation in Clovis
Spray foam is the right call for Clovis attics that never seem to cool down, especially second-story rooms that run 8 to 10 degrees warmer than the rest of the house. The foam seals the attic envelope itself, so the roof deck stops absorbing heat into the living space, which matters a lot under concrete tile. It also helps with the winter side of the valley’s climate, keeping heat in during those below-freezing fog nights. The Spray Foam Insulation in Clovis page covers pricing, open versus closed cell, and what the install looks like upstairs.
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 install Owens Corning, Johns Manville, Knauf, and Rockwool products, and our crews carry the materials your job needs from local supply, matched to your attic and your family’s priorities, including pet-safe options where a choice exists. See what we stock on our brands page. Turnaround on standard orders is usually within days, and we won’t start until we have the right product on the truck.
Pricing for Insulation Company in Clovis, CA
| Service | Typical range in Clovis |
|---|---|
| Attic insulation up to 1,000 sq ft | $2,800 – $4,200 |
| Attic insulation 1,000 – 1,500 sq ft | $3,500 – $5,500 |
| Attic insulation 1,500 – 2,000 sq ft | $4,200 – $6,500 |
| Attic insulation 2,000 – 2,500 sq ft | $5,500 – $8,000 |
| Attic insulation 2,500 – 3,000 sq ft | $6,500 – $9,500 |
| Radiant barrier (1,000 – 2,000 sq ft attic) | $800 – $1,800 |
| Spray foam: open-cell (2×4 wall cavity) | $1.20 – $2.40 per sq ft |
| Spray foam: open-cell (attic roofline) | $2,300 – $4,000 per 1,000 sq ft |
| Spray foam: closed-cell (2×4 wall cavity) | $2.00 – $3.50 per sq ft |
| Spray foam: closed-cell (attic roofline) | $3,800 – $5,800 per 1,000 sq ft |
| Air sealing / gap and crack sealing | $350 – $900 |
| Attic inspection with thermal imaging | $150 – $300 |
What pushes prices up in Clovis is usually attic accessibility: a tight hatch in an older Old Town home, low-slope roof framing, or a second story that makes hose runs longer. You’ll have your exact written number before we start, and that number does not change mid-job.
Neighborhoods We Serve in Clovis
We work across Clovis from the master-planned subdivisions to the older streets near Old Town. Most neighborhoods fall within a 30 to 45 minute response window from our Fresno-based scheduling desk, same day when the calendar allows.
- Harlan Ranch
- Loma Vista
- Old Town Clovis
- Central Clovis tracts
- Sierra Meadows
Service Area – Cities Near Clovis
Clovis is our focal point, but our crews also cover the surrounding Central Valley communities. If you’re in Fresno, CA, Sanger, CA, Fowler, CA, or Madera, CA, the same crew standards, written pricing, and clean-up promise apply. Scheduling runs through the Fresno office, so dispatch stays close by.
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 homes are scheduled within 48 hours, and same-day slots happen when the schedule opens up. We coordinate from our Fresno office, so crews are already local. Call (909) 768-6501 and a live person will give you the next real opening.
Most Clovis HOAs don’t require approval for attic insulation or air sealing, since the work happens inside the home and doesn’t change the exterior. If your HOA has a specific rule, we’ll work with what they need. The written price you get covers the whole job, approval or not.
Yes. We serve every Clovis neighborhood, including Harlan Ranch, Loma Vista, and the older streets near Old Town. The Fresno office keeps dispatch tight, so east-side and west-side jobs get the same response window.
Ready to talk about your Clovis attic? Call (909) 768-6501 for a free estimate, and you’ll have a written price before anyone climbs the ladder. Neil Barron and the Thistledown crew treat your house like our own: shoe covers at the door, drop cloths in the hallway, and a photo of the clean-up before we leave. We’re part of the Cedarwell family of insulation companies, and we’ve held every job to the same standard since 2003: done right, or we make it right.
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 within the hour.
- 4You approve before work beginsNothing starts until you say go.
What Clovis Customers Say
"Attic insulation. The crew laid down protection from the front door to the attic hatch and vacuumed up every bit of the old material. House holds its warmth now and there was zero mess."
- Rowena Platt"Attic insulation with a baby in the house. The crew was quiet, clean, and protected every floor they crossed. Took away all the debris and left it tidy. Already feeling the difference in comfort."
- Omar Leon"Spray foam in the garage and new attic insulation. Considerate, calm crew that protected the floors and kept the dust down with our little ones around. Explained it all patiently."
- Hassan Qureshi