Trusted Spray Foam Insulation for Fort Worth Homeowners
Spray foam insulation in Fort Worth is the highest-performing air seal and thermal barrier you can put in a home, and it typically runs $2.50 to $6.50 per square foot installed depending on foam type, depth, and access. Our crews install both open cell and closed cell foam in attics, walls, rim joists, and crawl spaces across Fort Worth, with a written price before any work starts and a 365-Day Done Right Promise behind every job. Neil Barron leads our Fort Worth team, and we answer the phone live at (682) 233-8300 any hour you call. If your upstairs rooms bake in July or your energy bill climbs every August, this page tells you exactly what we install, how we install it, and how much Spray Foam Insulation costs.
Closed Cell Spray Foam Insulation
Closed Cell Spray Foam Insulation is a dense, rigid foam that stops air, moisture, and vapor in one pass, and in Fort Worth’s clay-heavy soil and humid shoulder seasons it is the product we recommend most for crawl spaces, rim joists, and flood-prone perimeter walls. It cures hard enough to add structural racking strength to a wall assembly, which matters in older pier-and-beam homes near Fairmount and Ryan Place where framing has settled. Thistledown Insulation Fort Worth installs closed cell foam from Demilec and Icynene, and you’ll see your exact square footage and material line items on the written quote before we open a single drum. Closed cell runs $4.25 to $6.50 per board foot installed in most Fort Worth homes, with the price driven by access, depth, and whether we’re spraying an open attic or a tight crawl space.
Where Closed Cell Earns Its Price
Closed cell foam is the right call anywhere water vapor is a real concern: crawl space walls, rim joists at the foundation line, and garage ceilings under living space. In Fort Worth, the freeze-thaw cycle we get every January and February pushes moisture through porous concrete block, and closed cell is the only spray foam that stops that migration cold.
The trade-off is material cost. You get the highest R-value per inch (around R-6.5 to R-7), plus a Class II vapor retarder, plus structural stiffening. For a family that wants the crawl space bone dry and the floors warmer, that is usually worth the premium.
What You’ll See During Installation
We tent off the work area, run a vacuum on exhaust, and our technicians wear full respirators and Tyvek suits. Closed cell foam cures in minutes, and we trim it flush before we leave. You’ll get a photo of the finished surface and the clean floor before the van pulls away.
If you’re comparing quotes, ask whether the contractor is spraying closed cell at a full 2 inches in the crawl space or skimming it thinner. We quote the depth on the written estimate, so you know exactly what you’re paying for.
Open Cell Spray Foam
Open Cell Spray Foam is a softer, breathable foam that expands aggressively to fill wall cavities and attic rafter bays, and in Fort Worth it is usually the better value for attic rooflines and interior walls where moisture control is less critical and air sealing is the main goal. It costs less per board foot than closed cell, typically $2.50 to $4.00 installed, and it does a better job of quieting rain noise on metal roofs and upstairs foot traffic, which homeowners in Keller and Benbrook ask about constantly. Thistledown Insulation Fort Worth sprays open cell from Johns Manville and Icynene, and every quote spells out the depth, the coverage area, and the total before we schedule.
Why Open Cell Fits Fort Worth Attics
Open cell foam expands to roughly 100 times its liquid volume, so it fills odd rafter bays, around collar ties, and behind knee walls without leaving the gaps you get with cut-and-fit batts. In a 120-degree attic in August, that continuous air seal is what keeps the upstairs hallway from feeling like a sauna. We spray it directly to the underside of the roof deck in most Fort Worth homes, which turns the attic into semi-conditioned space and brings the ductwork inside the thermal envelope.
One thing to know: open cell is vapor permeable, meaning it lets moisture pass through. That is fine in a ventilated attic, but it is not the right product for a crawl space or below-grade wall. We’ll tell you which foam belongs where, and the written quote will match.
Sound Control Without Extra Products
Because open cell foam is soft and porous, it absorbs sound better than closed cell. When we spray an interior wall between the living room and the kids’ bedrooms, or the ceiling of a media room, the difference is immediate. No extra resilient channel, no second product line on the invoice. The foam does both jobs: air seal and sound break.
For families with dogs that bark at the doorbell or teenagers who game at midnight, this is the quiet-upgrade that costs the same as the energy upgrade.
Spray Foam Insulation Contractors
Fort Worth Spray Foam Insulation contractors are not all the same, and the difference shows up in surface prep, substrate temperature checks, and whether the crew masks off your floors before the hose comes through the house. Thistledown Insulation Fort Worth is the spray foam and attic insulation arm of the Cedarwell family, founded in 2003, and our technicians are background-checked, uniformed, and trained on eight insulation brand lines. We answer every call with a live person, we write your price before any work begins, and we stand behind every install with a 365-Day Done Right Promise: if it’s not done right, we make it right, no debate, no fine print.
What a Careful Install Looks Like
Before any foam leaves the gun, we check substrate temperature and moisture with an infrared thermometer and a pin meter. Foam sprayed on a surface that’s too hot or too cold won’t adhere properly, and in Fort Worth that means morning attic temps in winter matter. We also mask every register, seal off the work zone, and lay drop cloths from the front door to the attic hatch. The C.A.R.E. values we work by: Clean up like it is our own home; Ask before we move or touch anything; Respect the family’s time and quiet hours; Explain the price before the work.
Then we spray, trim, and photograph the finished surface before we leave. You’ll see the photo before you sign the job complete.
Questions to Ask Any Contractor
Ask about foam brand, depth per square foot, and whether the crew will be the same people from quote to cleanup. Ask if the written price includes masking, shoe covers, and trimming – or if those are add-ons in the fine print. Ask what happens if you find a thin spot six months later. Then call us at (682) 233-8300 and ask us the same questions. Our answers are short because we’ve been doing this since 2003 and the process doesn’t change.
Spray Foam Attic Insulation
Spray Foam Attic Insulation is the most effective way to stop conditioned air from leaking through your ceiling, and in Fort Worth’s flat-roofed additions and low-slope ranch houses it often outperforms blown-in fiberglass because it air seals while it insulates. The cost to spray foam a typical 1,500-square-foot attic roofline in Fort Worth is $6,500 to $13,500 depending on foam type, depth, and whether we’re also treating the attic floor. Thistledown Insulation Fort Worth installs both open cell foam at the roofline and closed cell in attic problem spots, with a written price and a photo of the finished work before we leave.
Roofline vs. Attic Floor
If your air handler and ducts live in the attic, spraying the roofline is almost always the better play in Fort Worth. It pulls the entire attic inside the conditioned envelope, which means your ducts stop losing cooled air to a 130-degree attic. We spray open cell directly to the roof deck, sealing the ridge, the eaves, and every nail penetration. The result is an attic that stays within 10 degrees of the house instead of 40 degrees above it.
For attics with HVAC equipment in a closet or conditioned space, we may recommend air sealing and insulating the attic floor instead. Either way, the written quote tells you what we’re spraying, where, and at what depth.
The Clean-Up Standard
We know you’ll go up there after we leave. The floor will be swept, the access hatch will be closed properly, and you’ll have a photo of the finished spray job on your phone before the van exits the driveway. That is not an upsell. It is the Cedarwell Care Promise, and it is on every job.
Spray Foam Wall Insulation
Spray Foam Wall Insulation is the best retrofit option for closing wall cavities in older Fort Worth homes, especially brick-veneer houses from the 1950s and 1960s in Wedgwood and Ridglea where the original wall insulation is either missing or settled to nothing. We typically inject open cell or closed cell foam into existing wall cavities through small access holes, or spray it directly into open stud bays during a remodel. Closed cell foam in a 2×4 wall runs about $3,000 to $6,000 for a single-story Fort Worth home, while open cell usually lands between $1,800 and $3,800 depending on coverage. Thistledown Insulation Fort Worth quotes the exact wall area, wall depth, and foam type before any work starts.
Retrofit Wall Foam Without the Mess
For existing walls, we drill small access holes at each stud bay, spray the foam in, and patch the holes. The foam expands to fill the cavity, including the gaps around electrical boxes and plumbing that batt insulation always misses. You’ll see minimal disruption, and we’ll match the patch to the wall finish as closely as the material allows. If you have wallpaper or a specialty finish, tell us during the estimate and we’ll plan around it.
In Hurst Spray Foam Insulation and across Fort Worth, those unsealed wall cavities in freeze-thaw winters are where the drafts come from. Closed cell foam in the exterior walls stops the air movement and keeps the wall cavity dry.
New Construction and Remodels
If you’re down to the studs on a remodel in Spray Foam Insulation - Haltom City or Benbrook, we spray directly into the open bays before drywall. That is the fastest, cleanest way to get a full-depth air seal in every wall. We’ll coordinate with your builder or drywall crew so the foam is trimmed and ready on schedule. The written price includes the full wall area, so there’s no field measurement surprise.
Rim Joist Spray Foam
Rim Joist Spray Foam is the single most cost-effective air sealing upgrade in a Fort Worth home, because the rim joist – the band of framing where your floor joists meet the foundation wall – is typically the leakiest seam in the entire building envelope. We seal rim joists with closed cell foam, usually at 2 inches of depth, which air seals and insulates in one step. Sealing the rim joist band in a typical Fort Worth crawl space or basement runs $800 to $2,400 depending on the home’s footprint and access. Thistledown Insulation Fort Worth includes this in most crawl space and basement estimates, because skipping it is like capping the pipe but leaving the valve open.
Why Closed Cell at the Rim
In winter, warm indoor air hits the cold rim joist and condenses, which is why so many Fort Worth crawl spaces develop musty smells and rot at the band board. Closed cell foam stops the air, blocks the moisture, and insulates the wood at the same time. Two inches of closed cell at the rim joist gives you about R-13 and a permanent air seal. Fiberglass batts stuffed in the rim joist do almost nothing because they don’t stop air movement.
We check every rim joist bay in the crawl space during the estimate and photograph what we find. If we see rot or termite damage, we’ll tell you before you pay for foam.
What to Expect During the Work
Rim joist work happens mostly in the crawl space or basement, so it’s out of sight but not out of mind. We lay plastic on the crawl space floor, run a light, and spray each bay fully. The work is quiet, contained, and usually finished in one visit. You’ll get a photo of the complete rim joist band before we pack up.
Crawl Space Spray Foam Insulation
Crawl Space Spray Foam Insulation in Fort Worth usually means spraying closed cell foam on the crawl space walls and rim joist to create a sealed, conditioned crawl space that keeps floors warmer in January and the whole house drier in May. The Fort Worth market cost for a full crawl space encapsulation with closed cell foam on the walls typically runs $5,500 to $12,500 depending on the crawl space footprint and access height, with the written price broken out line by line before we start. Thistledown Insulation Fort Worth treats the crawl space as a system: walls, rim joist, and often a vapor barrier, quoted as one number with no add-on surprises.
Sealing the Walls, Not the Floor
In a Fort Worth crawl space, the correct approach is to spray closed cell foam on the foundation walls and rim joist, then lay a heavy vapor barrier on the floor. You don’t spray foam on the floor. The wall foam stops outside air and ground moisture from entering, and the floor barrier stops evaporation from the soil. The result is a crawl space that stays dry and within a few degrees of the house.
We check the crawl space access height during the estimate. Tight crawls under 30 inches take longer and cost more, but we’ll show you that math in the quote. No vague allowances.
Pet-Safe and Family-Safe Products
We choose pet-safe products where a choice exists, and we’ll tell you which foam we’re using and why before the hoses come out. Crawl space work is contained below the house, but we still block off the access point and keep the yard clear while the crew works. The dog can be home during the job – just keep them out of the back yard where the hose runs.
Garage Spray Foam Insulation
Garage Spray Foam Insulation is the fix for a garage that turns into an oven by 2 p.m. in a Fort Worth summer, and it usually means spraying closed cell foam on the garage ceiling and the wall shared with the house, plus the rim joist if the garage sits over a crawl space. A typical two-car garage ceiling and common wall job runs $2,800 to $5,600 depending on square footage and whether we’re also sealing the garage door header and side gaps. Thistledown Insulation Fort Worth quotes the garage separately in the written estimate so you see exactly what it costs, never buried in a lump sum.
Ceiling and Common Wall Work
The garage ceiling is where most of the heat comes from, especially if there’s a bedroom above it. We spray closed cell foam on the garage ceiling to stop the heat transfer, then treat the wall shared with the house as part of the thermal boundary. That common wall is where car exhaust, paint fumes, and noise try to sneak inside. Closed cell foam stops all three.
If your garage is fully finished and the ceiling is drywalled, we may need to cut access points or work from the attic above. We’ll walk you through that during the estimate.
Keeping the Garage Usable
After the foam cures, your garage will be noticeably cooler in the summer and warmer in the winter. You can work on the car, store paint that won’t freeze, and let the kids use the space as a play area without the heat pushing them back inside. We mask the garage floor and door tracks, and we’ll sweep the floor before leaving. You’ll get a photo of the finished install.
Brands We Service
We install Johns Manville open cell foam in Fort Worth attics where budget matters and air sealing is the primary goal. Johns Manville’s open cell product has a consistent cell structure that expands evenly in rafter bays, and we have years of experience dialing in the right depth for North Texas heat. When a homeowner wants a trusted brand name with proven attic performance, Johns Manville open cell often fits the plan.
We also install Icynene closed cell and open cell products, which we have used in Fort Worth crawl spaces and rim joist jobs for years. Icynene’s closed cell foam cures dense and hard, which is exactly what we want at the rim joist and on below-grade walls. Demilec closed cell foam rounds out our closed cell lineup, and we select between these brands based on the specific job, the substrate, and the homeowner’s priorities. Whether you have a brand preference or you just want us to pick the right foam for the job, we’ll explain the choice in the written quote.
Signs You Need a Pro Right Now
- Your upstairs rooms run 8 to 10 degrees hotter than downstairs. In Fort Worth, that temperature gap is usually an attic air sealing problem, not an HVAC sizing problem. Spray foam at the roofline closes the air leaks that keep the upstairs AC from ever catching up.
- The floor above the crawl space feels cold in January. Cold floors over a vented crawl space mean the crawl space air is moving under the floor joists. Closed cell foam on the crawl space walls and rim joist stops that air movement and keeps the floor warmer.
- You can feel a draft near the baseboards on a windy day. Wind pushes outside air through the rim joist and wall cavities. If you feel air moving around the baseboards, the building envelope is leaking, and spray foam is the airtight fix.
- Your energy bills climb every July and August. A Fort Worth summer with a leaky attic costs you money every single day. When the attic hits 130 degrees, the AC works against the roof. Sealing the thermal boundary with spray foam cuts that load, and you’ll see it on the next bill.
- You found damp insulation or a musty smell in the crawl space. Moisture in the crawl space means the vented crawl space is pulling in humid air. Fiberglass batts on the crawl space ceiling are often damp and sagging. Closed cell spray foam on the walls fixes the moisture source instead of masking it.
Our Process, Step by Step
- 1
Call and talk to a live person. You call (682) 233-8300, and a human answers – 24/7, no voicemail tree. We’ll ask a few questions about your home, the area you want insulated, and what you’re feeling: hot rooms, cold floors, high bills. That call is free and takes about ten minutes.
- 2
We measure and write your price. We send Neil Barron or one of our senior technicians to your Fort Worth home for a full evaluation. We measure the area, check the substrate temperature and moisture, photograph what we find, and write your price down clearly. You get that number in writing before we schedule any work, and it does not change.
- 3
We prep your home like it’s our own. On install day, we lay drop cloths from the front door to the work area, wear shoe covers inside, and mask off registers, doorways, and anything near the spray zone. We’ll ask before we move anything, and we’ll use quiet tools if the baby is napping.
- 4
We install the foam and review the work with you. The spray foam goes in at the depth and coverage listed on your written quote. We trim the foam flush, sweep the work area, and photograph the finished surface. You’ll see the photo and walk the job with us before we consider it complete.
- 5
We stand behind the work for a full year. Every job carries the 365-Day Done Right Promise. If something isn’t right – a thin spot, a missed bay, a gap – call us and we’ll fix it. No debate, no fine print. That’s the Cedarwell-family standard.
How Much Does Spray Foam Insulation Cost in Fort Worth?
A typical open cell spray foam attic roofline in Fort Worth runs $6,500 to $9,500 for a 1,500-square-foot home, while a closed cell attic on the same footprint lands between $9,500 and $13,500. Most Fort Worth homeowners pay between $2.50 and $6.50 per square foot depending on the foam type and the depth we spray.
Closed cell foam costs more per board foot because it delivers more R-value per inch (around R-6.5 to R-7) and doubles as a vapor barrier. Open cell foam costs less but requires a thicker application to hit the same insulating performance, usually 5 to 6 inches in a rafter bay to reach an equivalent R-value. Other factors that move the price: crawl space access height, how much masking and surface prep the job requires, and whether we’re treating the rim joist at the same time. You’ll see all of those items line by line on the written quote before you sign anything.
How to avoid overpaying: ask for the price per board foot in writing, ask what depth they’re quoting, and ask whether cleanup and masking are included. We include every one of those in the number we give you, and the written estimate is free. Call (682) 233-8300 and we’ll come measure.
For more on what goes into a Fort Worth spray foam job, see Spray Foam Insulation in Fort Worth. If you’re in Haltom City, read about Spray Foam Insulation in Haltom City. And for our Benbrook coverage, visit Spray Foam Insulation in Benbrook.
Our Service Area Near Fort Worth
Thistledown Insulation Fort Worth serves the entire Fort Worth metro, including Haltom City, Benbrook, Keller, Hurst, Richland Hills, White Settlement, Azle, Kennedale, Sansom Park, River Oaks, and Lake Worth. Most of our spray foam estimates within Fort Worth city limits are scheduled within one to two business days, and we can often run a same-week install when the schedule allows. We are a Fort Worth team, so our crews know the local construction styles, the soil, and the weather. If you’re unsure whether we cover your street, call our home office and ask.
Serving Fort Worth, TX - Our Local Coverage Area
We’re based in the Fort Worth area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions About Spray Foam Insulation in Fort Worth
Spray foam insulation is a two-part liquid foam that expands on contact to fill cavities, seal air leaks, and insulate in one continuous layer. In Fort Worth homes, we use open cell foam in attics and interior walls, and closed cell foam in crawl spaces, rim joists, and anywhere moisture control matters. The foam stops air movement, which is the main way heat enters and leaves a Fort Worth house.
Most single-area spray foam jobs in Fort Worth take one day from prep to cleanup. A full attic roofline on a 1,500-square-foot home usually runs four to six hours on site. A crawl space encapsulation with rim joist work might run one to two days depending on access. We’ll give you a time window in the written estimate.
Spray foam insulation in Fort Worth typically runs $2.50 to $6.50 per square foot installed, with most whole-attic jobs landing between $6,500 and $13,500 depending on foam type and depth. Closed cell foam costs more than open cell, and crawl space work costs vary with access height. Your written quote will show every line item before any work begins, and estimates are free. Call (682) 233-8300 for an exact number.
Yes, we install Icynene open cell and closed cell foam products, along with Johns Manville and Demilec foam. If you have a specific brand preference from a previous home or a builder spec, tell us during the estimate and we’ll match it. We’ll also tell you honestly if another foam is a better fit for your Fort Worth home, because the right product matters more than a brand name.
We answer every call live at (682) 233-8300, 24 hours a day, and we’ll tell you during that call when we can get to your home. Many Fort Worth estimates are scheduled within one to two business days, and we can often accommodate same-week installs. If you have an emergency situation, like a failed rim joist air seal or water intrusion at the crawl space, tell us on the call and we’ll do everything we can to get there fast.
Every installation is backed by our 365-Day Done Right Promise: if it’s not done right, we make it right, no debate, no fine print. The foam products themselves carry manufacturer warranties that vary by brand, and we’ll walk you through what’s covered when we hand you the written estimate. If you find a thin spot or a gap within the first year, call us and we’ll come fix it.
Clear a path from the front door to the work area, move any valuables out of the attic or crawl space if you can, and put pets in a room away from the work zone. We’ll handle the rest: drop cloths, shoe covers, masking, and cleanup. If there’s anything specific in the work area – holiday boxes, keepsakes, old paint cans – just tell us, and we’ll ask before we move anything.
Schedule Your Spray Foam Insulation Service in Fort Worth Today
Call (682) 233-8300 and a live person answers, any hour, any day. We’ll schedule a free estimate, measure the exact area, and hand you a written price before any work starts. Every job carries the 365-Day Done Right Promise, and every visit includes shoe covers, drop cloths, and a photo of the finished work. Call us and find out what a careful spray foam crew actually looks like.
Written by Neil Barron, Owner at Thistledown Insulation Fort Worth, serving Fort Worth and surrounding communities since 2003.