Insulation Company in Fresno, TX
Thistledown Attic Insulation is the insulation company Fresno homeowners call when attic heat turns the upstairs into an oven and the AC can’t keep up. Fresno’s single-story ranch homes from the 1950s through 1980s were built for a different climate, and most carry original insulation that has settled well below what today’s code requires. We install attic insulation and spray foam using eight trusted brands, with a written price before any work starts and a 365-Day Done Right Promise on every job. Call (430) 226-1334 and a live person answers, any hour, any day.
Why Fresno Homes Are Different
Fresno gets hot. Real hot. Summer days over 100°F are routine, and that heat lands on the roof first, then pushes through the attic and into the living space. But the winters here have their own problem: cool, damp air that can condense in an under-vented attic and feed mold before anyone notices. So Fresno attics need two things working at once: enough insulation to block the summer heat gain, and enough air movement to keep winter moisture from collecting. Most older Fresno homes do not have either.
The housing stock tells the story. These are mostly ranch and Spanish-style homes from the 1950s to the 1980s. Their attics were insulated once, decades ago, with whatever batt or blown material was cheapest at the time. Now that material is thin, compressed, and doing almost nothing. California’s current code calls for R-30 to R-38 in attics; many Fresno attics are running closer to R-11 or R-19. The difference is not subtle. In northwest Fresno’s Fig Garden area, some 1950s flat-roof homes have no attic hatch at all. Those jobs require exterior drilling and dense-pack blowing, which is a very different project from a standard batt replacement. We plan for the house as it actually is, not as a diagram of what an attic should look like.
Our Main Fresno Services
Most Fresno homeowners call us about two things: bringing an older attic up to current insulation standards, and sealing the attic with spray foam when air leaks are the real problem. Each service has its own page, and each project gets its own written price.
Attic Insulation in Fresno
Fresno homes built in the 1960s and 1970s often have shallow rafter bays and original blow-in insulation that has settled to a fraction of its original depth. We remove what’s failing, air-seal the attic floor, and install fresh blown or batt insulation matched to the house. We check ventilation during the work because a Fresno attic with good insulation and no airflow still bakes in August. See Attic Insulation in Fresno for the full breakdown of what each project includes.
Spray Foam Insulation in Fresno
Spray foam solves a different Fresno problem: the attic that leaks air. In a ranch home with a vented attic that has never been sealed, the conditioned air you pay to cool escapes through every top-plate gap, can-light hole, and chase opening. Closed-cell and open-cell foam seal those gaps and add insulation in one step. We choose foam products from Icynene and Demilec where they fit best. Spray Foam Insulation in Fresno explains the difference between foam types and where each makes sense 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 Fresno
We install insulation from Rockwool, CertainTeed, Icynene, and Demilec, plus four other brands, so each Fresno attic gets the product that matches its construction and the family’s preferences. We carry common materials locally and schedule from our Houston dispatch office. See our brands for the full list and how we choose among them.
Pricing for Insulation Company in Fresno, TX
| Service | Typical range in Fresno |
|---|---|
| Air sealing + blown insulation (1,200 sq ft attic) | $1,900 – $3,400 |
| Batt insulation install, new construction | $0.85 – $1.35 per sq ft |
| Blown-in attic insulation to R-38 | $1,750 – $3,200 |
| Spray foam, open-cell (full attic) | $0.45 – $0.85 per board foot |
| Spray foam, closed-cell (attic roof deck, 1,200 sq ft) | $0.95 – $1.75 per board foot |
| Attic insulation removal and disposal | $1,100 – $2,000 |
| Insulation top-up over existing blown material | $1,300 – $2,500 |
| Flat-roof dense-pack (exterior drilling, Fig Garden style) | $2,400 – $4,800 |
What pushes a Fresno quote higher is usually the age of the original construction: shallow rafter bays, a low-slope roof, or an attic that needs extensive air sealing before insulation goes in. And what keeps the number honest is simple: every Thistledown customer receives a written price before any work begins, so there is no surprise line item at the end.
Neighborhoods We Serve in Fresno
We work throughout Fresno, from the older ranch blocks near Fresno High to the newer subdivisions south of Shaw and the flat-roof clusters in Fig Garden. Response time across the Fresno metro area is usually same-day or next-day for estimates.
- Fig Garden
- Woodward Park
- Tower District
- West Fresno / Kearney
- Sunnyside
Service Area – Cities Near Fresno
Thistledown crews serve Fresno and the surrounding metro. If you are in Stafford, TX, Alvin, TX, Pasadena, TX, or Houston, TX, we can schedule an estimate and often start within the week. Dispatch and scheduling run through our Houston office, and crews arrive with shoe covers, drop cloths, and a written price.
Serving Fresno, TX - Our Local Coverage Area
We’re based in the Fresno 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 Fresno
Most Fresno estimates are scheduled same-day or next-day. If your attic is open or you have an active leak or mold concern, call (430) 226-1334 and we will tell you over the phone when a tech can be there. We never route calls to voicemail.
Most insulation replacement and top-up work in Fresno does not require a permit, but flat-roof dense-pack jobs and some spray foam roof deck projects can. We check the current Fresno requirements for each job and handle the paperwork if a permit is needed.
Yes. We wear shoe covers from the front door to the attic hatch, lay drop cloths across the hallway and under the attic opening, and use quiet tools when a child is napping. We also choose pet-safe insulation products where a choice exists, so your dog can stay home.
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 Fresno Customers Say
"Careful and clean from start to finish. They covered the hallway, wore booties, and hauled off all the old material without leaving a speck. Respectful of the home the whole time."
- Brett Yamamoto"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 newborn in the house. The crew was quiet, laid protection on every floor they crossed, and hauled off all the old material. Left it spotless and the house is cozier already."
- Corinne Dyer