Fast, Reliable Spray Foam Insulation Across Richardson
Spray foam insulation in Richardson typically runs $2,400 to $7,800 depending on the square footage and whether you’re sealing an attic, rim joists, or a crawl space. Most jobs take one to two days, and our crews are in Richardson neighborhoods every week, so we can usually schedule within a few days of your call. If you’ve been fighting $400 summer electric bills in a 1970s ranch off Belt Line Road or a Telecom Corridor townhome off Campbell Road, the problem is rarely your AC unit. It’s the unconditioned attic above you leaking cooled air. Call (361) 607-0906 and we’ll put a written price in your hands before any work starts.
Why Aspen Attic Insulation Dallas Is Richardson’s Preferred Spray Foam Insulation Company
Richardson homeowners call us because we show up the way we said we would. Before any tech arrives, we send their name and photo to your phone. You know exactly who’s knocking. The tech wears a clean marked uniform and shows a photo ID badge at the door. That’s the Threshold Standard we’ve held since 2002, and we don’t make exceptions because a job is small or a street is far.
Every job carries a written price before work begins. You see the cost of labor and materials in writing, and that number does not change unless you add scope. If something fails within 365 days, you call us and we come back free. That guarantee covers labor and materials, and it’s printed on your invoice. No fine print, no phone tree, no surprises.
We work in Richardson often enough to know which homes were insulated to R-11 in the 70s and which apartment conversions need air sealing before foam. Our Spray Foam Insulation team carries materials from Icynene, Demilec, and Owens Corning, matched to the specific attic or rim joist job, not whatever is left on the truck. A live person answers our phone 24/7. Try us at (361) 607-0906 and you won’t get a voicemail loop.
Rim Joist Spray Foam in Richardson
Rim joist spray foam in Richardson is the highest-ROI air-sealing job for homes built between 1960 and 1985, when builders rarely insulated the band board where floor framing meets the foundation. We’ve opened rim joists in Canyon Creek and Reservation homes that had zero insulation against the foundation wall, just bare wood with outside air moving straight through. Closed-cell foam seals that entire perimeter band, stops outdoor air from entering the basement or crawl space, and creates a thermal break that immediately changes how your floors feel in January.
What the job involves
Our tech removes any existing fiberglass batts stuffed against the rim board, then applies two to three inches of closed-cell spray foam directly to the band joist. The foam expands to fill every crack, gap, and plumbing penetration. In a typical Richardson ranch with a 1,400-square-foot footprint, rim joist work takes four to six hours and runs $1,800 to $3,200.
When Richardson homeowners call us
The usual trigger is cold floors in winter and a persistent musty smell from the crawl space. Some call after pest control flagged rodent entry at the rim joist. Others call when they realize their attached garage never cools down even marginally in August, which usually means the rim joist above the garage wall was never sealed. We see all three in Richardson weekly.
Crawl Space Spray Foam Insulation in Richardson
Crawl space spray foam insulation in Richardson addresses what vented crawl spaces do to older homes: they let humid North Texas air into the under-floor cavity, where it condenses on ductwork and floor joists. Many 1960s-1980s brick veneer homes in Canyon Creek and around Yale Park have open crawl vents and uninsulated floor cavities, so the HVAC system ends up cooling air that passes through a damp, unconditioned space before it reaches your vents. Closed-cell foam on the crawl space walls and rim joists turns that area into a sealed, conditioned buffer.
Sealing the crawl space
We apply closed-cell foam to the perimeter walls and rim joists, then treat the crawl space as part of the home’s conditioned envelope. In a standard Richardson crawl space of 800 to 1,200 square feet, this runs $3,500 to $6,500, including air sealing around all penetrations and the access door.
Moisture first
Before any foam goes in, we check for standing water, high humidity, and any plumbing leaks. Foam over an active moisture source creates a mold problem behind the foam. If we find moisture, we tell you what needs to change and add the cost to your written estimate before foam ever touches a wall.
Trusted Brands We Service in Richardson
We install and service spray foam from Demilec, Icynene, and Owens Corning because those products have held up well across North Texas heat and humidity cycles. Not every foam handles a Richardson attic that hits 130°F in August the same way. For closed-cell rim joist and crawl space work, we typically specify Demilec’s closed-cell lineup. For roof deck applications, we use Icynene’s high-yield open-cell where appropriate. We stock the necessary rigs and materials to serve Richardson customers without ordering delays. If a product fails inside your 365-day guarantee window, we replace it free and make it right.
Common Spray Foam Insulation Problems We See in Richardson Homes
- Bathroom exhaust fans venting into the attic. This is rampant in 1960s-1980s homes across Canyon Creek and Reservation. Foam sprayed over that moisture traps humidity inside the envelope and feeds mold growth. The fan must be rerouted and the moisture addressed first.
- Open-cell foam over vented attic floors without air sealing. If you spray open-cell over a vented attic floor and skip the air sealing, humid summer air still moves around the foam and condenses on ductwork. We see this in Richardson homes where a previous contractor took the cheaper route.
- Settled fiberglass above attached garages. Many Richardson homes have almost nothing above the garage ceiling. A rim joist or attic job that skips the garage leaves a major thermal bypass, and the garage door wall keeps radiating heat into the rest of the house.
- Ductwork in unconditioned attics. Richardson’s stock of ranch homes often runs supply ducts through attics that hit 130°F. Spray foam on the roof deck brings that temperature down and keeps cooled air cooler as it travels, but only if the attic is properly sealed first.
Pricing for Spray Foam Insulation in Richardson, TX
Here’s what Richardson homeowners can expect to pay. Open-cell spray foam for a roof deck or attic floor runs $1.20 to $1.80 per board foot, which works out to roughly $2,400 to $4,800 for a typical 1,400-square-foot ranch. Closed-cell spray foam runs $2.00 to $2.80 per board foot, so a rim joist perimeter job lands between $1,800 and $3,200, and a full crawl space encapsulation runs $3,500 to $6,500. Garage ceiling spray foam typically falls between $1,200 and $2,600 depending on ceiling area. We give you a written price before work begins, and it covers labor and materials. Call (361) 607-0906 for a free estimate with no obligation.
We Also Serve Cities Near Richardson
Our crews cover Richardson and the surrounding area, including Addison, Plano, Sachse, and Dallas. If you’re in one of those cities and need spray foam insulation, our scheduling team can route a crew your way, often the same week.
Serving Richardson, TX - Our Local Coverage Area
We’re based in the Richardson 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 Richardson
Usually yes, and here’s why. If we’re converting a vented attic to an unvented, conditioned attic, the old blown fiberglass must come out so the roof deck can be properly sealed and foamed. Leaving old insulation above the ceiling drywall traps moisture and creates a double vapor barrier. Full removal and disposal runs $800 to $1,500 for most Richardson ranches. For rim joist and crawl space jobs, the existing insulation is often minimal and we remove only what’s directly in the way. Call (361) 607-0906 and we’ll tell you what your attic actually needs.
It depends on where the foam goes. If you spray the roof deck, you must seal the vents and convert to an unvented conditioned attic, which means addressing any bathroom fans or dryers that vent into the attic first. If you spray the attic floor and leave the roof deck vented, you can keep the existing ventilation, but air sealing around every penetration and the top plates is critical or you’ll still get humidity bypass. We’ll inspect your roof deck and ventilation setup in Richardson and put the right approach in writing.
Yes, but it won’t fix the windows. Spray foam addressing the attic and rim joists can cut cooling loss through the ceiling and floor framing, which is where a surprisingly large share of heat gain happens in 1990s-2000s townhomes. Single-pane windows will still radiate heat, but a sealed and insulated attic above them means the AC isn’t fighting heat from above at the same time. Most Telecom Corridor owners we work with pair attic air sealing with window film or eventual replacement. Call us at (361) 607-0906 for a targeted plan.
Go into the attic on a day someone takes a hot shower, or look for moisture staining around the fan housing and discolored insulation nearby. If you see a flexible duct that ends short of the roofline or just dumps air into the attic cavity, the fan is venting inside. Many homes in Canyon Creek and Reservation have this from original construction. We inspect for this before any foam goes in and will reroute the fan duct to a proper roof or soffit vent as part of the job.
Closed-cell is the right choice for rim joists in Richardson crawl spaces. It provides a vapor barrier, structural rigidity, and about R-6.5 per inch, which matters in a damp, humid environment. Open-cell absorbs moisture and should never be used against foundation walls or rim boards. We specify closed-cell foam for every rim joist and crawl space job we do in Richardson, using Demilec’s product line. For a quote, call (361) 607-0906.
Call Aspen Attic Insulation Dallas today at (361) 607-0906 for a free, no-obligation estimate on spray foam insulation in Richardson. You’ll get a written price before work begins, a tech whose name and photo you receive before arrival, and a 365-day written guarantee on everything we install.
Written by Garrett Sloane, Owner at Aspen Attic Insulation, serving Richardson since the Threshold Group’s founding in 2002.