Insulation in Dallas, TX
Spray foam insulation in Dallas runs $1.80 to $3.60 per board foot for open-cell and $2.50 to $5.00 per board foot for closed-cell, with most whole-attic jobs landing between $4,500 and $11,000 depending on square footage. The reason Dallas jobs so often start with air sealing is the Blackland Prairie clay under nearly every slab foundation-it swells and shrinks through wet-dry cycles, opening gaps around top plates, can lights, and duct chases that no amount of insulation alone will close. For a written price before any work starts, call (218) 261-7714.
Why Dallas Homes Are Different
Dallas attics hit 150-160°F from June through September. That’s not a figure from a spec sheet; it’s what our blower-door technicians measure with surface thermometers on routine visits. Radiant heat at that level degrades blown-in cellulose and fiberglass density over time and cooks HVAC equipment that was never designed to pull 150-degree return air.
The housing stock matters just as much as the heat. The 1978-1988 oil-boom wave blanketed Garland, Mesquite, Carrollton, and Irving with brick-veneer slab homes built to R-19 attic insulation. Current code calls for R-38 to R-49. After four decades of 160-degree attic summers and single-digit Blue Norther winters like February 2021, that R-19 has settled, compressed, and lost most of its rated performance. Older pockets like Oak Cliff and East Dallas hold 1930s-1950s pier-and-beam homes where crawl space and floor insulation is frequently missing entirely.
And underneath it all sits the real problem: Blackland Prairie clay, the “black gumbo,” a soil that expands when wet and cracks when dry. Every seasonal cycle shifts slab penetrations by fractions of an inch. Over ten years, that’s a quarter-inch gap at wall top plates and HVAC chases-invisible from the living room, but the single largest air bypass in a Dallas attic. Topside Attic Insulation probes these penetrations on every quote before we recommend any R-value number, because sealed first is the only order that works here.
Our Main Dallas Services
The two calls we get most in Dallas involve the attic and the crawl space-the two places conditioned air leaks from your home’s thermal envelope.
Attic Insulation in Dallas
Most Dallas homes built before 1988 sit at R-19 when they need R-38 to R-49, and the difference shows up directly on July electric bills. We air-seal the attic floor first-top plates, can lights, duct chases-then blow insulation to full depth, and we publish the before-and-after blower-door readings so you can see the change in CFM50. That’s the order, every time. For the full breakdown of this service in Dallas, see Attic Insulation in Dallas.
Crawl Space Encapsulation & Vapor Barrier in Dallas
Pier-and-beam homes in Oak Cliff and East Dallas often have no insulation under the floor at all, and the clay soil underneath adds a humidity load that rises through the joists. We install vapor barrier and encapsulation systems that stop ground moisture from entering the conditioned space, then insulate the band joists. Full details on this service in Dallas are on Crawl Space Encapsulation & Vapor Barrier in Dallas.
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.
Spray Foam Insulation in Dallas
Spray foam insulation in Dallas is the strongest answer to the city’s two worst envelope problems: 160-degree attic heat and clay-soil air bypasses. Closed-cell foam expands into the quarter-inch gaps around top plates and duct chases that slab movement opens over time, while open-cell foam seals and insulates in one pass on attic floors and roof decks. We install both, always after air-sealing verification, and every job closes with before-and-after blower-door numbers published to the customer. For full material and application details, see our Spray Foam Insulation hub page.
Open-Cell Spray Foam
Signs you need it
Your upstairs bedrooms run 8-12 degrees warmer than the rest of the house in summer, and your attic floor has gaps around can lights and duct chases visible from below.
What it costs in Dallas
Open-cell spray foam in Dallas runs $1.80 to $3.60 per board foot, so a typical 1,000-square-foot attic floor at 5.5 inches lands between $3,500 and $7,000.
How we do it
We air-seal every penetration from below, verify the attic floor is clean and dry, then spray open-cell foam to depth in one pass and document the result with photos and a blower-door retest.
Closed-Cell Spray Foam
Signs you need it
Your HVAC supply and return chases in the attic show visible gaps at the framing, and you want a moisture-resistant air barrier in addition to insulation.
What it costs in Dallas
Closed-cell spray foam in Dallas runs $2.50 to $5.00 per board foot, with rim joist and roof deck applications typically falling between $2,800 and $6,500 on a standard home.
How we do it
We mask off the work area, probe the slab-to-framing penetrations by hand, spray closed-cell foam into the gaps and seams, then document every sealed penetration with numbered photos.
Rim Joist Spray Foam
Signs you need it
Your first-floor rooms over the crawl space or basement feel cold in winter, and you can see daylight or feel air movement at the band joist from inside.
What it costs in Dallas
Rim joist spray foam in Dallas runs $1.80 to $3.60 per board foot, with a full perimeter rim joist on a slab home typically landing between $1,200 and $2,800.
How we do it
We access each rim joist bay from the crawl space or interior, remove old batt or debris, spray foam to full depth against the band, and photograph every bay before and after.
What Spray Foam Insulation Costs in Dallas
| Item | Typical range in Dallas |
|---|---|
| Open-cell spray foam | $1.80 - $3.60 per board foot |
| Closed-cell spray foam | $2.50 - $5.00 per board foot |
| Whole-attic spray foam job | $4,500 - $11,000 |
How long does spray foam take to install in a Dallas attic?
Open-cell spray foam on an attic floor typically takes one day after air sealing is complete. Closed-cell roof deck jobs run two to three days depending on square footage and access.
Is spray foam worth it for a home in Dallas?
For slab homes on Blackland Prairie clay with persistent air bypasses, yes. Closed-cell foam seals the quarter-inch gaps slab movement creates, something blown-in insulation cannot do. Call (218) 261-7714 for a written quote.
Blown-In Insulation in Dallas
Blown-in insulation in Dallas is the most cost-effective way to bring a 1980s-era R-19 attic up to the R-38 minimum current code expects, especially when paired with air sealing first. On slab homes built between 1978 and 1988, we regularly find compressed fiberglass and settled cellulose that has dropped below the top plate line, which means the attic is losing conditioned air through gaps no amount of loose-fill alone will fix. We seal top plates, can lights, and duct chases before the hopper ever starts, then blow to depth and document the blower-door change. Full material detail lives on our Blown-In Insulation hub page.
Blown-In Cellulose
Signs you need it
Your existing attic insulation sits below the top plate line, and your upstairs rooms heat up faster than they should even with new HVAC.
What it costs in Dallas
Blown-in cellulose in Dallas runs $0.90 to $1.80 per square foot installed at full R-38 depth, so a 1,200-square-foot attic lands between $1,100 and $2,200 before any air-sealing work.
How we do it
We seal every penetration, mark target depth on the joists, blow cellulose to that depth, and verify coverage with photos and a blower-door retest.
Blown-In Fiberglass
Signs you need it
You want an insulation that does not settle and holds its R-value in Dallas’s extreme thermal cycling, particularly after a February 2021-style cold snap exposed how little your attic was holding.
What it costs in Dallas
Blown-in fiberglass in Dallas runs $0.85 to $1.75 per square foot installed at R-38, putting a typical 1,500-square-foot attic between $1,300 and $2,600.
How we do it
We air-seal the attic floor first, install depth markers, blow fiberglass to the target R-value, and verify density with a core sample in three locations.
What Blown-In Insulation Costs in Dallas
| Item | Typical range in Dallas |
|---|---|
| Blown-in fiberglass | $0.85 - $1.75 per sq ft |
| Blown-in cellulose | $0.90 - $1.80 per sq ft |
| Whole-attic top-up or full install | $1,100 - $6,600 |
Does blown-in insulation settle in a Dallas attic?
Cellulose settles 10-15% in the first year, so we blow to a higher starting depth to land at the target R-value. Fiberglass does not settle and holds its depth unless moisture or rodents compress it.
Can I just add more blown-in insulation without air sealing?
You can, but on Dallas slab homes you will be blowing insulation over gaps that leak conditioned air at the top plate. We will not do it that way, and our blower-door numbers show why. Call (218) 261-7714 for a written price that includes sealing first.
Radiant Barrier Installation in Dallas
Radiant barrier installation in Dallas is a near-essential companion to bulk insulation because attics here sustain 150-160°F surface temperatures through summer, and that radiant heat enters the attic space regardless of how much fiberglass sits on the floor. A radiant barrier-a foil-faced material stapled to the underside of rafters-reflects the sun’s heat before it can load the attic air, which lowers attic temperatures enough to measurably reduce HVAC runtime. It does not replace insulation; it reduces the heat load insulation must handle. See our Radiant Barrier Installation hub page for material specs.
Attic Radiant Barrier
Signs you need it
Your attic is 40-50 degrees hotter than outdoor air even after dark, and the upstairs HVAC runs continuously on summer afternoons.
What it costs in Dallas
Attic radiant barrier in Dallas runs $0.50 to $1.25 per square foot installed, with a typical 1,500-square-foot attic landing between $750 and $1,900.
How we do it
We staple foil-faced barrier to the underside of rafters, leaving the ridge and soffit vents open, then measure attic temperature before and after to document the change.
Radiant Barrier Roof Deck
Signs you need it
You are planning a roof replacement or new construction and want the radiant barrier installed at the roof deck before shingles and decking go down.
What it costs in Dallas
Radiant barrier roof deck in Dallas runs $0.75 to $2.00 per square foot, with deck installation on a standard roof between $1,500 and $4,000 depending on roof complexity.
How we do it
We install foil-faced barrier between the decking and the shingle underlayment during construction, which is the cleanest, least intrusive install point for a new roof.
What Radiant Barrier Installation Costs in Dallas
| Item | Typical range in Dallas |
|---|---|
| Standard radiant barrier (installed) | $0.50 - $1.25 per sq ft |
| Premium/roof deck radiant barrier | $0.75 - $2.00 per sq ft |
| Typical single-family home | $750 - $4,000 |
Does radiant barrier actually lower cooling bills in Dallas?
Yes. Reducing attic surface temperature by 20-30 degrees lowers the temperature gradient across your ceiling insulation, which reduces HVAC runtime. The effect is strongest on single-story slab homes with ductwork in the attic.
Do I still need attic insulation if I have a radiant barrier?
Yes. Radiant barrier reflects heat, but it does not stop convection or conduction. Insulation is still the primary thermal barrier, and in Dallas we install both together. Call (218) 261-7714 for a written price on the pair.
Insulation Removal & Replacement in Dallas
Insulation removal and replacement in Dallas is most often triggered by three local realities: rodent activity, decades of 150-degree attic heat degrading material performance, or a roof leak that soaked the batts and turned them into a mold substrate. The 1978-1988 building wave left thousands of attic floors with R-19 fiberglass that has compressed to a fraction of its original depth, and in many of those attics the material is contaminated with squirrel or rat droppings. Removing it is a controlled process, not a raking job; we use commercial vacuums and bag every cubic foot. Details on process and material choices are on our Insulation Removal & Replacement hub page.
Attic Insulation Removal
Signs you need it
Your existing attic insulation is compressed, settled below the top plate, or contaminated with rodent droppings or roof debris.
What it costs in Dallas
Attic insulation removal in Dallas runs $1.00 to $3.00 per square foot, so a typical 1,200-square-foot attic lands between $1,200 and $3,600 before refilling.
How we do it
We lay containment, vacuum the old material to the joist line, bag it in sealed containers, and sweep the deck clean with photographs of the cleared surface.
Insulation Replacement
Signs you need it
Your attic has been cleaned and is ready for new material, and you want the correct R-value for a Dallas attic-R-38 minimum, R-49 preferred-installed by a crew that documents everything.
What it costs in Dallas
Insulation replacement in Dallas combines removal and refill; an average single-family home typically lands between $4,000 and $12,000 for the full job depending on square footage and material choice.
How we do it
After removal, we air-seal every penetration, install depth markers, blow or spray new material to target depth, and hand you a photo record plus before-and-after blower-door readings.
What Insulation Removal & Replacement Costs in Dallas
| Item | Typical range in Dallas |
|---|---|
| Insulation removal | $1.00 - $3.00 per sq ft |
| Contaminated insulation removal | $3.00 - $6.50 per sq ft |
| Full removal & replacement (typical home) | $4,000 - $12,000 |
When should I remove attic insulation instead of topping it up?
Remove it when there is rodent contamination, mold from roof leaks, or the material has compressed below the top plate line. Topping up over contaminated material buries the problem and does nothing for air quality.
How long does insulation removal take in a Dallas attic?
Most removals finish in one day. A 1,200-square-foot attic with standard fiberglass or cellulose typically takes six to eight hours, including bagging the full volume. Call (218) 261-7714 for a written price.
Attic Air Sealing in Dallas
Attic air sealing in Dallas is the non-negotiable first step before any insulation goes down, because slab movement on Blackland Prairie clay continuously opens gaps at top plates, can lights, and HVAC chases. We have pulled blower-door readings on homes that read 4,200 CFM50 before sealing and 2,100 after-a full 50% reduction in air loss through the attic floor-before a single bag of insulation was added. That’s the Haven Standard order: sealed first, then insulated. Full process detail is on our Attic Air Sealing hub page.
Attic Floor Air Sealing
Signs you need it
You can see daylight or feel drafts around attic penetrations from below, and your blower-door reading shows CFM50 numbers well above what a sealed home should produce.
What it costs in Dallas
Attic floor air sealing in Dallas runs $0.75 to $1.50 per square foot, so a 1,500-square-foot attic typically lands between $1,100 and $2,300.
How we do it
We work from the attic side, sealing top plates, wire penetrations, plumbing stacks, and chase holes with foam and caulk, then document every sealed location with photos.
Can Light & Duct Boot Sealing
Signs you need it
Your can lights are the old recessed style that were never rated for insulation contact, and your duct boots show a visible gap where they pass through the drywall.
What it costs in Dallas
Can light and duct boot sealing in Dallas runs $25 to $60 per fixture or boot, with a typical home of twenty penetrations landing between $500 and $1,200.
How we do it
We seal around each fixture from the attic side with foam rated for the housing, gasket the duct boot to the drywall, and photograph every fixture before and after.
What Attic Air Sealing Costs in Dallas
| Item | Typical range in Dallas |
|---|---|
| Whole-attic air sealing | $750 - $2,500 |
| Sealing per square foot | $0.75 - $1.50 per sq ft |
| Full seal + insulation package (typical home) | $2,500 - $7,500 |
How do I know if my Dallas attic needs air sealing?
If your home was built before 2010, assume it leaks. The blower-door test gives the exact number. We have yet to test a slab home in Dallas that did not show gaps at top plates or duct chases.
Does air sealing make a noticeable difference in a Dallas summer?
Yes. Sealing the attic floor stops conditioned air from being pulled out of the living space into a 160-degree attic, which directly reduces HVAC runtime on the hottest days. Call (218) 261-7714 for a written quote that includes blower-door testing.
Wall Insulation in Dallas
Wall insulation in Dallas is a different job than attic work because most 1978-1988 slab homes were built with R-13 batt in the walls and no air barrier at the top plate, which means wall cavities leak through the same clay-driven gaps that plague the attic. Injection foam and drill-and-fill methods can reach existing wall cavities without tearing out drywall, and we use them on the built-out suburbs of Garland, Mesquite, and Carrollton often. Sealed first still applies: we seal the top of each cavity before filling it. See our Wall Insulation hub page for method comparison.
Injection Foam Wall Insulation
Signs you need it
Your interior walls radiate heat in summer, and your upstairs rooms cannot hold a temperature setpoint even with attic insulation in place.
What it costs in Dallas
Injection foam wall insulation in Dallas runs $1.50 to $4.00 per square foot of wall area, with a full exterior wall on a 2,000-square-foot home typically landing between $3,000 and $8,000.
How we do it
We drill small holes through the exterior or interior, inject foam into each cavity until full, seal the holes, and verify coverage with thermal imaging.
Drill & Fill Wall Insulation
Signs you need it
Your home has empty wall cavities from original construction, particularly true of brick-veneer slab homes built in the late 1970s and early 1980s in the Dallas suburbs.
What it costs in Dallas
Drill and fill in Dallas runs $1.00 to $3.00 per square foot of wall area, depending on whether we use cellulose or fiberglass and the number of cavity obstructions.
How we do it
We drill through the sheathing, fill each cavity to density, cap the holes with matching materials, and thermal-image the wall to confirm full coverage.
What Wall Insulation Costs in Dallas
| Item | Typical range in Dallas |
|---|---|
| Injection foam wall insulation | $1.50 - $4.00 per sq ft |
| Drill & fill wall insulation | $1.00 - $3.00 per sq ft |
| Full wall insulation package (typical home) | $3,000 - $8,000 |
Can you insulate walls without tearing out drywall in Dallas?
Yes. Drill-and-fill and injection foam methods reach existing cavities through small holes that are patched after filling. We do this regularly on brick-veneer slab homes throughout Dallas.
How much difference does wall insulation make in a Dallas summer?
Walls are a smaller share of heat gain than the attic, but empty or settled wall cavities create vertical air channels that pull conditioned air from the home. Filling them locks the building envelope. Call (218) 261-7714 for a written quote.
Attic Cleaning & Rodent Proofing in Dallas
Attic cleaning and rodent proofing in Dallas is in demand because the same Blackland Prairie clay that shifts foundations also cracks brick veneer and mortar joints, giving squirrels and rats entry into attics across the city. Once inside, rodents shred insulation, defecate through the material, and gnaw on wire sheathing. We remove the contaminated insulation, sanitize the attic deck, seal every entry point from the exterior, and leave you with a documented photo record of the sealed openings. This is an insulation problem as much as a pest problem. See our Attic Cleaning & Rodent Proofing hub page for the full sequence.
Attic Cleanout
Signs you need it
You hear scratching at dawn, find droppings in the attic, or your insulation has been compressed into rat runs and nesting spots.
What it costs in Dallas
Attic cleanout in Dallas runs $500 to $1,500 depending on attic size and level of contamination, with the average single-family attic landing around $900.
How we do it
We remove contaminated insulation to the deck, vacuum droppings and debris, bag everything for disposal, and photograph the cleared attic before sanitation.
Rodent Proofing & Exclusion
Signs you need it
You want the entry points sealed so rodents cannot return-critical on Dallas brick-veneer homes where cracked mortar joints and unscreened soffit gaps provide easy attic access.
What it costs in Dallas
Rodent proofing and exclusion in Dallas runs $300 to $800 depending on the number of entry points found, with most slab homes needing work at six to twelve locations.
How we do it
We inspect the full exterior perimeter, seal gaps with steel mesh and foam, install screens on vents and soffits, and photograph every sealed opening.
What Attic Cleaning & Rodent Proofing Costs in Dallas
| Item | Typical range in Dallas |
|---|---|
| Attic cleanout | $500 - $1,500 |
| Sanitizing & decontamination | $200 - $600 |
| Rodent proofing & exclusion | $300 - $800 |
Can I clean my attic and install new insulation without removing the old insulation?
No. Rodent-saturated insulation cannot be cleaned in place. It must be removed, the deck sanitized, entry points sealed, and new material installed. Topping over contaminated insulation just buries the problem.
How long does attic cleaning and rodent proofing take in Dallas?
Most jobs finish in one to two days, including removal, sanitation, exclusion sealing, and refilling. Call (218) 261-7714 for a written price on the full sequence.
Home Energy Audit in Dallas
A home energy audit in Dallas is the diagnostic first step for any homeowner who suspects their house is leaking conditioned air-and on Blackland Prairie clay, most slab homes are. We run a blower-door test to measure total air loss in CFM50, thermal-image walls and ceilings for insulation voids, inspect the attic and crawl space, and hand you a written report with photographs and measurements, not a sales pitch. This is the document that tells you what work matters first. See our Home Energy Audit hub page for the full scope.
Blower Door Test
Signs you need it
You want the exact number for how much air your home is losing-the CFM50 reading that tells us whether your envelope is tight or leaking.
What it costs in Dallas
A blower door test in Dallas runs $150 to $400 as a standalone service, and it is included in the full audit package.
How we do it
We mount the blower door in an exterior door frame, depressurize the house, measure air flow at 50 pascals, and record the reading for your report.
Thermal Imaging Inspection
Signs you need it
You see temperature differences on interior walls, feel drafts in specific rooms, or want photographic evidence of insulation voids and air leaks before committing to work.
What it costs in Dallas
Thermal imaging in Dallas runs $200 to $500 as a standalone inspection, and it is included in every full home energy audit we perform.
How we do it
We scan the building envelope with an infrared camera, mark anomalies with a visible-light photo, and compile the findings in your written audit report.
What Home Energy Audit Costs in Dallas
| Item | Typical range in Dallas |
|---|---|
| Blower door test | $150 - $400 |
| Thermal imaging | $200 - $500 |
| Full home energy audit package | $400 - $1,000 |
How long does a home energy audit take in Dallas?
A full audit takes four to six hours depending on home size, including blower-door testing, thermal imaging, and a full attic and crawl space inspection. You receive the written report the same day.
Do I need an energy audit before insulation work in Dallas?
Not required, but strongly recommended. The audit tells us exactly where your conditioned air is going, which means every dollar you spend on insulation lands where it has the most effect. Call (218) 261-7714 to schedule one.
Brands We Service in Dallas
We stock and install insulation from Owens Corning, Johns Manville, Knauf, and Rockwool, with no proprietary product lock-in. Material for standard jobs is on hand locally, and specialty orders arrive within a week. See our brands for full specifications.
Pricing for Insulation in Dallas, TX
| Service | Typical range in Dallas |
|---|---|
| Spray foam insulation | $1.80 - $5.00 per board foot |
| Blown-in insulation | $0.85 - $1.80 per sq ft |
| Radiant barrier installation | $0.50 - $2.00 per sq ft |
| Insulation removal | $1.00 - $6.50 per sq ft |
| Insulation replacement | $4,000 - $12,000 per home |
| Attic air sealing | $750 - $2,500 per attic |
| Wall insulation | $1.00 - $4.00 per sq ft |
| Attic cleaning & rodent proofing | $500 - $2,200 per job |
| Home energy audit | $400 - $1,000 per audit |
Price in Dallas rises with attic square footage, the number of penetrations needing sealing, the difficulty of access, and whether material removal is required first. Under Haven Standard Clause 1, you receive a flat written price, written scope, and written warranty before anyone lifts a tool.
Neighborhoods We Serve in Dallas
We work across Dallas, from pier-and-beam homes in Oak Cliff and East Dallas to 1980s slab construction in north Dallas, Far North Dallas, and the Preston Hollow area. Attic insulation, air sealing, spray foam, and rodent proofing are all regularly scheduled in these areas.
- Oak Cliff
- East Dallas
- Preston Hollow
- Far North Dallas
- Lake Highlands
Our crews serve the entire Dallas area with same-week scheduling for most jobs and same-day dispatch for insulation removals and air sealing when we have a crew available.
Service Area - Cities Near Dallas
Topside Attic Insulation also serves the Dallas suburbs, including Irving, TX, Mesquite, TX, Grand Prairie, TX, and Richardson, TX. Dispatch and scheduling are coordinated from our Dallas-Fort Worth office, and crews serve Dallas and the surrounding cities locally.
Serving Dallas, TX - Our Local Coverage Area
We’re based in the Dallas 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 in Dallas
Most insulation jobs in Dallas are scheduled within a week, and removal or air sealing work can often be dispatched same-day when crews are available. Calls are answered by a live person 24/7 at (218) 261-7714, not a voicemail loop.
Most insulation retrofit work in Dallas does not require a city permit, but if your project includes structural changes or HVAC modifications, the scope must comply with city code. We tell you in writing before any work starts whether a permit applies.
Yes. Radiant barrier and attic work usually does not trigger HOA review since it is not visible from the street, but if your HOA requires documentation, we provide a written scope and photo record that meets typical Dallas association standards.
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 1-hour.
- 4You approve before work beginsNothing starts until you say go.
What Dallas Customers Say
"The winter gas bill dropped by about a third. They had estimated a quarter, so they under-promised."
- Genevieve R."Two other companies quoted to blow more insulation on top of what was there. These were the only ones who said the existing material had to come out first, and explained why."
- Clifford E."Fixed price, clean work, and they hauled the old material away as agreed."
- Todd M.