Insulation Company in Perris, CA
Blown in insulation is the most common request we get from Perris homeowners, and for good reason: much of the housing stock here dates to the 1980s and 1990s, when R-11 or R-13 attic batts were the builder standard. After three decades of Perris heat, those batts have settled, been compacted by rodents, or simply degraded. We’re Gallant Insulation Co, and we’ve served Perris since 2014. We install blown in insulation, attic insulation, and spray foam using materials from eight named manufacturers, so the recommendation you get is based on what your specific home actually needs, not what’s on the truck that day. Call (877) 265-0627 for a free estimate.
Why Perris Homes Are Different
Perris sits in a wind-swept inland valley where summer heat routinely exceeds 100°F and winter nights drop near freezing. That means insulation here has to handle one of the widest diurnal temperature swings in Southern California. A single-layer R-13 job that would pass in a milder Riverside neighborhood often fails to keep a Perris home comfortable year-round. The afternoon winds that sweep through the valley drive heat into attics in July and pull conditioned air out through walls in January, so air sealing matters as much as the R-value of whatever material you install.
Housing stock varies across the four ZIP codes we cover: 92570, 92571, 92572, and 92599. The 92570 ZIP has a large share of older ranch-style houses on big lots, plus a significant number of manufactured homes with thin factory wall cavities that need careful retrofits. The newer tract developments in 92571 and 92572 generally have better building envelopes, but we still find original builder-grade attic insulation that has settled well below the top plate of the ceiling joists. In the older parts of 92570, many homes were built with minimal attic ventilation and no radiant barrier, so attic temperatures can spike past 150°F in July. Technicians on those jobs routinely find disintegrated or pest-compacted insulation that needs full removal before any upgrade makes sense.
Our Main Perris Services
Most Perris homeowners call us about one of two things: an attic that’s making upstairs rooms unbearable in summer, or a whole-house comfort problem where spray foam might be the better answer. Here’s what each involves locally.
Attic Insulation in Perris
When a Perris attic hits 150°F in July, that heat transfers directly into living spaces if the insulation at the ceiling plane is inadequate or compromised. We inspect what’s there, determine whether existing material can be topped off or needs full removal, and install batts or blown-in material rated for both extreme heat and cold winter nights. The wind factor in Perris also means we pay close attention to air sealing at the attic floor before any insulation goes in. See the full breakdown on our Attic Insulation in Perris page.

Spray Foam Insulation in Perris
Manufactured homes and older ranch houses in 92570 often have wall cavities that are too thin for conventional batts to perform well. Spray foam, applied as open-cell or closed-cell depending on the application, seals the building envelope while insulating, which matters in a valley where wind-driven air infiltration is a year-round issue. We carry both Icynene and Demilec systems, so the choice between open-cell and closed-cell is driven by your roof line, wall depth, and moisture exposure, not by what a single-product contractor happens to sell. Details are on our Spray Foam Insulation in Perris page.

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.
Blown In Insulation in Perris

Blown in insulation is our most-requested service in Perris because it solves the two problems this city’s housing stock has in spades: settled or rodent-damaged attic insulation from the 1980s and 1990s, and manufactured homes where accessing wall and ceiling cavities is difficult without a loose-fill material. We blow cellulose or fiberglass across the attic floor to a depth that restores the R-value Perris summers demand, and we can retrofit sidewalls in older homes by drilling and filling cavities through small access points. We install Blown In Insulation with either GreenFiber cellulose or fiberglass, depending on your budget, home type, and sensitivity to recycled content.
Cellulose Insulation
Signs you need it
Your attic insulation is visibly settled below the joist tops, your energy bills climb every summer, or you want a recycled-content material with strong sound-dampening properties.
What it costs in Perris
Blown-in cellulose in Perris typically runs $1.50 to $2.80 per square foot depending on the target R-value and whether existing insulation must be removed first.
How we do it
We remove compromised existing material where necessary, air seal the attic floor, then blow GreenFiber cellulose to the specified depth using a calibrated machine that ensures consistent density and R-value.
Blown In Attic Insulation
Signs you need it
Rooms below the attic run 10 – 15 degrees hotter than the rest of the house in summer, or you can see bare spots and gaps in the existing attic insulation.
What it costs in Perris
Blown-in attic insulation in Perris typically lands between $900 and $2,100 for a standard single-story home, depending on attic size, current insulation condition, and target R-value.
How we do it
We prep the attic by sealing air leaks at plumbing penetrations, recessed light housings, and top plates, then blow insulation to an even depth that achieves the R-value your home needs for Perris temperature swings.
What Blown In Insulation Costs in Perris
| Item | Typical range in Perris |
|---|---|
| Blown-in cellulose (attic, ~1,500 sq ft) | $900 – $2,100 |
| Blown-in fiberglass (attic, ~1,500 sq ft) | $800 – $1,900 |
| Wall cavity retrofit (drill-and-fill, per wall section) | $1.50 – $2.80 / sq ft |
How long does blown in insulation last in Perris heat?
Cellulose and fiberglass both hold their R-value indefinitely if kept dry, but Perris attics that reach 150°F accelerate settling in poorly installed material. A properly dense-packed cellulose job typically lasts the life of the home. Call (877) 265-0627 for an attic assessment.
Can you blow insulation into walls of an older Perris home?
Yes. For 1970s and 1980s ranch homes in 92570 with no wall insulation, we drill small access holes, blow cellulose or fiberglass into each stud cavity, then patch the holes cleanly. Estimates are free.
Brands We Service in Perris
We stock and install insulation from eight named manufacturers in Perris, including Rockwool mineral wool, CertainTeed fiberglass, and both Icynene and Demilec spray foam systems. Every material we use comes from a named, warranted manufacturer, so there’s no unverifiable off-brand product on any job. See our brands for the full lineup.
Pricing for Insulation Company in Perris, CA
| Service | Typical range in Perris |
|---|---|
| Blown-in attic insulation (standard home) | $900 – $2,100 |
| Blown-in fiberglass (attic, ~1,500 sq ft) | $800 – $1,900 |
| Cellulose insulation (attic) | $1.50 – $2.80 / sq ft |
| Spray foam (open-cell, wall retrofit) | $1.50 – $3.00 / sq ft |
| Spray foam (closed-cell, roof deck) | $2.50 – $4.50 / sq ft |
| Attic batt installation (standard home) | $1,200 – $2,800 |
| Wall cavity drill-and-fill retrofit | $1.50 – $2.80 / sq ft |
| Rim joist sealing (spray foam) | $400 – $900 |
| Insulation removal (compromised attic) | $500 – $1,500 |
The biggest price drivers in Perris are attic access difficulty, whether compromised insulation needs full removal before new material goes in, and how much air sealing the attic floor requires given the valley’s afternoon winds. You’ll always get a written, upfront price before work starts, and estimates are free.
Neighborhoods We Serve in Perris
We work across all four Perris ZIP codes, from the older ranch houses on large lots in 92570 to the newer tract developments east of the 215 and the communities around Lake Perris. Typical response time for an estimate anywhere in Perris is one to three business days, with faster scheduling available for emergency attic or crawlspace work.
- May Ranch
- Enchanted Heights
- Perris Valley
- Lake Perris area
- Southern Oaks
Service Area – Cities Near Perris
Gallant Insulation Co serves Perris and the surrounding inland valley communities, including Good Hope, CA, Mead Valley, CA, Romoland, CA, and Sun City, CA. If your home is in one of these nearby areas and you’re dealing with the same heat-gain and wind-driven air infiltration issues we see in Perris, call us for a free insulation assessment.
Serving Perris, CA — Our Local Coverage Area
We’re based in the Perris 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 Perris
Most Perris homes get an estimate within one to three business days. If you have exposed insulation after storm damage or a pest problem, we prioritize those calls. Call (877) 265-0627 to schedule a time that works for you.
For most residential insulation retrofits in Perris, no city permit is required. Spray foam applied at the roof deck can trigger permit requirements depending on scope, and we’ll tell you upfront if your project needs city sign-off in 92570, 92571, 92572, or 92599.
Late fall and winter are the most comfortable seasons for our crews to work in a Perris attic, but insulation can be installed year-round. Summer jobs get scheduled in the early morning to avoid the worst of the afternoon heat. Call (877) 265-0627 to plan your project when it’s convenient, not when it’s an emergency.
Call Gallant Insulation Co at (877) 265-0627 for a free estimate on blown in insulation, attic insulation, or spray foam in Perris. We’ll assess your home’s current insulation, explain what’s actually needed for Perris heat and wind, and give you a straight price before any work begins.
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 60-minute.
- 4You approve before work beginsNothing starts until you say go.
What Perris Customers Say
"He did a blower door test before and after and gave me the numbers. I like being able to see the difference rather than being told about it."
— Priya Rao"Attic was at maybe R-11 from the 1970s and blown in over the top would have just buried the problem. They removed the old material, air sealed the top plates and penetrations first, then blew in to R-49. The upstairs is a completely different house in August."
— Emily Ackerman"Work is good and the house is noticeably more comfortable. There was insulation debris left in the hall closet under the attic access that I had to clean up."
— Eduardo Reyes