Spray Foam Insulation Cost - Same-Day Service, Done Right the First Time

How Much Does Spray Foam Insulation Cost in Fort Worth?

Spray foam insulation in Fort Worth typically costs between $3,200 and $7,900 for a full attic application in a 1,500 to 2,500 square foot home. Open-cell foam runs $0.45 to $0.85 per board foot installed, while closed-cell foam costs $0.95 to $2.10 per board foot. For most Fort Worth ranchers and two-story homes built between 1960 and 2010, you’ll land somewhere in the $4,500 to $6,500 range for a complete attic encapsulation.

Those numbers are real figures from our Spray Foam Insulation services in Fort Worth, not national averages pulled from a database. The final price depends on your attic’s square footage, roof pitch, existing insulation, and whether you need open-cell or closed-cell foam. We give every customer a written price before any work starts, so you’ll know your exact number before our crew pulls up to the curb.

Key Takeaways: Spray Foam Insulation Costs in Fort Worth

• Typical full-attic spray foam job: $3,200 to $7,900 for homes 1,500 – 2,500 sq ft
• Open-cell foam: $0.45 – $0.85 per board foot installed
• Closed-cell foam: $0.95 – $2.10 per board foot installed
• Roof deck encapsulation (the most common Fort Worth application): $3.50 – $6.50 per square foot of roof area
• Wall cavity injection during remodels: $1,800 – $4,200 per average room addition
• Crawl space encapsulation: $2,200 – $5,600 depending on access and square footage
• Most Fort Worth jobs complete in 1 – 2 days

Spray Foam Insulation Cost Breakdown (2026)

Here’s what our crews quote for spray foam insulation in Fort Worth right now. These reflect actual 2026 pricing for Tarrant County, where summer attic temperatures regularly push past 140°F and winter humidity creates condensation problems that open-cell foam handles particularly well.

Two things move these numbers more than anything else in Fort Worth: the age of your home and the condition of your existing insulation. Homes in Ridglea, Arlington Heights, and Wedgwood built before 1980 often have settled rock wool or fiberglass batts that need removal first. That removal adds $1,200 to $2,400 depending on attic depth and access. Newer homes in Walsh, Ventana, or Chisholm Trail Ranch usually have cleaner attics and skip that step entirely.

The second driver is roof pitch. A 4:12 roof with decent headroom lets our crew move quickly and costs less. A 12:12 pitch on a Victorian in Fairmount or a 1960s ranch in Handley with a low-slope roof slows everything down. We price for the actual attic, not a template, which is why every job gets a written quote before we start.

What Affects Spray Foam Insulation Pricing in Fort Worth

• Attic square footage and roof geometry – A 2,200 sq ft house in Heritage or Hulen Bend with a simple hip roof might need 1,800 board feet of coverage. A same-sized home in Park Hill with dormers, valleys, and a steep pitch could need 2,400 board feet. More surface area means more foam.
• Open-cell vs. closed-cell foam – Closed-cell runs roughly twice the price of open-cell per board foot. In Fort Worth’s climate, open-cell is usually the right call for attic roof decks. Closed-cell makes sense for rim joists, crawl spaces, and any area with direct ground moisture contact.
• Existing insulation condition – If your attic has 40-year-old fiberglass batts that have flattened to R-11 or less, we’ll recommend removal before foaming. Removal in an older Fort Worth home with a tight attic hatch and limited access runs $1,200 to $2,400 and adds a half day to the job.
• Air sealing scope – Spray foam is only as good as the air sealing around it. Can lights, bath fans, plumbing stacks, and chimney chases all need attention. Homes with 12 to 15 penetrations cost less than homes with 30-plus, which is common in North Fort Worth track homes from the 1990s with multiple bath fans and HVAC runs.
• Access and working conditions – An attic with a full staircase or pull-down ladder in the garage is straightforward. A scuttle hole in a hallway closet in a 1950s bungalow near TCU means our crew works through a 22-inch opening. Time in the attic drives labor, and labor is a real part of your quote.
• Seasonal demand – Fort Worth winters are mild but summers are brutal. June through September is our busiest season because homeowners feel the heat radiating through upstairs ceilings. Booking a January or February installation sometimes saves $300 to $600 because crews are less scheduled, and honestly, the foam cures fine in cooler weather.

Spray Foam vs. Traditional Insulation: Fort Worth Cost Comparison

If you’re weighing spray foam against blown-in fiberglass or cellulose, here’s what the numbers look like in Tarrant County right now. We install both, and we’ll tell you which one fits your house and budget. We carry Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber products, so the recommendation is based on your attic, not our inventory sheet.

Spray foam costs more up front than blown-in fiberglass. Nobody argues that. What spray foam does differently is seal the building envelope. In a Fort Worth summer, your attic’s top surface hits 140°F regularly in July and August. Blown-in insulation on the attic floor slows heat transfer but doesn’t stop attic air from pushing through every gap around your ceiling. Spray foam on the roof deck makes the attic a conditioned space, which means your HVAC ductwork stops losing cooled air into a 140-degree oven. That’s why homes in Ridgmar and Overton Park with spray foam often see their upstairs temperature swing drop from 10 degrees to 2 or 3 degrees between floors.

How to Save on Spray Foam Insulation in Fort Worth

You don’t have to choose between doing it right and keeping costs reasonable. Here’s what actually works.

• Book during the off-season. January through March is slower for insulation crews in Fort Worth. We keep our crews busy year-round, which means off-peak scheduling sometimes comes with better pricing. It’s worth asking.
• Bundle the attic and the crawl space. If you have both an unconditioned attic and a vented crawl space, doing both in the same visit saves on mobilization. We’re already parked at your house, the trailer’s already loaded, and the crew isn’t driving across town between jobs.
• Have your ductwork checked at the same time. Spray foam changes your attic’s thermal profile, which means your HVAC ducts work differently. We’ll flag obvious duct leaks while we’re up there. Sealing those leaky joints before foaming means the foam does what it’s supposed to do.
• Ask about the Thistledown written quote. Our pricing philosophy is simple. You get a written price before any work starts, every single time. That quote tells you exactly what you’ll pay, what products we’re installing, and what’s included. No change orders, no surprise line items at the end.
• Check for rebates and incentives. Oncor and TXU sometimes run insulation incentive programs, and the federal 25C tax credit still applies to certain insulation improvements. We don’t process rebates for you, but we’ll tell you what paperwork to keep and which products qualify.

For an exact number on your home, call (682) 233-8300. Estimates are free, and a live person answers the phone 24/7, which means you can call at 9 p.m. after the kids are asleep and get a real conversation, not a voicemail tree.

Why Fort Worth Homes Need Spray Foam Specifically

North Texas weather punishes attics. The Fort Worth area gets 38 inches of rain a year, 230-plus sunny days, and summer highs that sit above 95°F for weeks at a stretch. Your attic is the front line for all of that.

In neighborhoods like Woodhaven and Eastchase, where homes date from the 1960s and 1970s, we regularly find attics with original R-19 fiberglass that has compressed to R-8 or worse. The roof decking shows the heat. The insulation shows its age. And the upstairs bedrooms show the result: they run 8 to 12 degrees warmer than downstairs from June through September.

Spray foam stops that cycle. When we apply open-cell foam to the underside of your roof deck in a Fort Worth home, the attic temperature drops from 140°F to within 10 degrees of your living space. That’s not marketing language. That’s what our temperature readings show after the job is done, and we’ll show you those readings if you want to see them.

Open-Cell vs. Closed-Cell: Which One Do You Need in Fort Worth?

This is the question we answer most often on home consultations. Here’s the short version.

Open-cell foam is softer, lighter, and about half the cost of closed-cell. It’s the right choice for most Fort Worth attic roof decks because it expands to fill the cavity completely, seals air gaps well, and allows moisture to move through slowly, which matters in homes without a perfectly sealed building envelope. R-value runs R-3.5 to R-3.8 per inch, and we typically apply 5 to 6 inches on an attic roof deck.

Closed-cell foam is denser, harder, and more expensive. It also acts as a vapor barrier, which is exactly what you want in a crawl space where ground moisture is a constant. In Fort Worth, where the water table sits high in areas near the Trinity River and around Lake Worth, closed-cell on crawl space walls is often the difference between a damp, musty house and a dry one. We typically apply 2 to 3 inches in crawl spaces and rim joists.

For most attic-only jobs in Tarrant County, we recommend open-cell. We carry Icynene and Demilec open-cell products, and we’ll tell you exactly which one is going in before we start. That’s the written quote promise working as intended.

What Happens During a Fort Worth Spray Foam Installation

Here’s what a typical attic encapsulation looks like with our crew, start to finish.

Step 1: The walk-through. We arrive in uniform, wearing shoe covers from the front door to the attic hatch. Before anything else, we walk the attic with you, explain what we’re seeing, and confirm the scope matches the written quote you already have in hand.

Step 2: Prep work. We lay drop cloths across your hallway and under the attic access. Every can light, bath fan, and plumbing penetration gets sealed or protected before foam goes in. If you have pets, we’ll let you know whether the product we’re using requires them to be out of the house for a few hours. Where a pet-safe product choice exists, we choose it, so the dog can be home during the job.

Step 3: The application. Spray foam goes on in lifts. Open-cell expands quickly, so we work in sections, building up the full depth over the roof deck. Most 1,500 to 2,000 square foot attics take one full day. Larger homes or steep roofs take two.

Step 4: The clean-up. We clean up like it’s our own home. That’s one of the Cedarwell Care Promise standards, and it’s not an upsell. Before the van pulls away, we take a photo of the clean-up and show it to you. You’ll see the hallway before we leave and know exactly what we’re leaving behind.

Step 5: The follow-up. Every job is backed by the 365-Day Done Right Promise. If it’s not done right, we make it right. No debate, no fine print. You call, we come back.

FAQs – Spray Foam Insulation Cost in Fort Worth

How much does spray foam insulation cost per square foot in Fort Worth?

You’ll pay $3.50 to $6.50 per square foot of roof deck for open-cell spray foam in Fort Worth, and $5.50 to $9.50 per square foot for closed-cell. A 1,800 square foot attic with a 1,800 square foot roof deck lands around $6,300 to $11,700 for open-cell and $9,900 to $17,100 for closed-cell. Call (682) 233-8300 for a free written quote on your actual attic.

Is spray foam insulation worth the money in Fort Worth?

For most two-story homes in Fort Worth, yes. Spray foam typically reduces cooling costs by 20% to 35% in Tarrant County homes and makes upstairs bedrooms usable in July and August. At $4,500 to $6,500 for an average attic, most Fort Worth homeowners see a 6 to 9 year payback in energy savings alone, plus the comfort difference starts the day we finish. Call (682) 233-8300 to talk through whether your home is a good candidate.

Can you spray foam an existing home without removing drywall?

Yes, for attic roof decks and rim joists. We spray the foam directly onto the underside of the roof deck from inside the attic, so no drywall comes down. For existing wall cavities, we drill small holes and inject open-cell foam, then patch the holes. You’ll need drywall repair on those spots, which we’ll note in your written quote before any work starts. Call (682) 233-8300 for specifics on your home.

How long does spray foam insulation take to install in Fort Worth?

A typical 1,500 to 2,000 square foot attic roof deck in Fort Worth takes one day. Larger homes, steep roof pitches, or jobs that include old insulation removal take two days. The foam itself cures within 24 hours, and most families can stay home during the job. We’ll confirm the timeline in your written quote. Call (682) 233-8300 to schedule a walk-through.

Is it cheaper to do spray foam myself?

For an attic roof deck, DIY spray foam runs $1,200 to $2,500 in materials for a 1,500 square foot attic, but the equipment rental, overspray risk, and lack of warranty usually erase the savings. Improperly applied foam can trap moisture against your roof deck and create condensation problems that cost more to fix than the original job. We do not recommend DIY spray foam in an occupied Fort Worth home. Our crews are trained, background-checked, and every job is backed by the 365-Day Done Right Promise. Call (682) 233-8300 for a free estimate.

Pricing reflects the Fort Worth market as of 2026. Thistledown Insulation Fort Worth offers free estimates. Call (682) 233-8300 and a live person will answer, 24/7.

Written by Neil Barron, Owner at Thistledown Insulation Fort Worth, serving the Fort Worth area since 2003.