Insulation in Flower Mound, TX
Spray foam insulation in Flower Mound solves the two problems local homes face every year: 140°F attic temperatures that overwhelm R-19 and R-30 fiberglass, and February freeze events like Winter Storm Uri that expose every gap in a pipe chase. This page covers the eight insulation services we perform here, with real price ranges for each. Call (218) 261-7714 for a written price before any work starts.
Key takeaways: Attic insulation in Flower Mound homes built before 2010 usually sits at R-19 to R-30, well under the R-49 recommendation for North Texas. Sealing comes before insulation on every job. And every project ends with a documented record: photos, blower-door readings where applicable, and a written scope.
Why Flower Mound Homes Are Different
Flower Mound’s housing stock grew fast through the 1990s and early 2000s, and most of those large brick-veneer homes went in with attic insulation that met code at the time but falls far short today. The typical assembly is R-19 to R-30 blown fiberglass in the attic and R-11 or R-13 batts in 2×4 wall cavities. That is the pre-IECC standard, and it means nearly every house in the community is an active insulation upgrade candidate. The homes are large, 2,500 to 4,500 square feet on average, with vaulted ceilings and bonus rooms over attached garages.
The bonus-room-over-garage assembly deserves special attention. We consistently find this to be the worst thermal failure point in Flower Mound envelopes. The garage ceiling often has no insulation at all, or two to three inches of compressed batt, leaving the finished room above it exposed to summer heat radiating off the garage slab and winter cold pouring up through the floor. Add in 140°F attic temperatures in July and the freeze vulnerability that burst pipes across the community in February 2021, and insulation here is a high-stakes upgrade, not a cosmetic one.
Our Main Flower Mound Services
Two services account for the majority of the calls we take from Flower Mound homeowners. Both stem from the same underlying condition: homes built fast, insulated to old standards, and now leaking conditioned air through dozens of penetrations in the attic floor.
Attic Insulation in Flower Mound
Most Flower Mound attics hold R-19 to R-30 blown fiberglass that has settled, compressed, or been disturbed by tradespeople. Air sealing the attic floor comes first, then we bring the insulation up to R-49. The difference is measurable: we publish before-and-after blower-door numbers on every applicable job so you can see the CFM50 change in a single figure. Details on current R-values, the sealing-first sequence, and exact pricing are on the Attic Insulation in Flower Mound page.

Crawl Space Encapsulation & Vapor Barrier in Flower Mound
Homes with pier-and-beam foundations or partial crawl spaces in Flower Mound deal with North Texas humidity pulling moisture into floor framing. A sealed crawl space with a vapor barrier stops that moisture at the source, which protects the insulation above it and keeps indoor air from smelling like a musty basement. The Crawl Space Encapsulation & Vapor Barrier in Flower Mound page covers the full sequence, pricing, and the written documentation you’ll receive.

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 Flower Mound

Spray foam insulation in Flower Mound addresses what blown fiberglass cannot: the air leakage. A blower-door test on a typical 1990s Flower Mound home reads 3,500 to 5,000 CFM50 before sealing. Closed-cell foam on the attic floor or roof deck cuts that number dramatically, because it is both the insulation and the air barrier in one pass. We install open-cell and closed-cell foam from Owens Corning, Demilec, and Icynene depending on the assembly, and we never blow insulation over an unsealed attic floor. Before any foam leaves the gun, top plates, can lights, and penetrations are sealed. You can see the full service details, including the sealing-first sequence and material selection guidance, on our Spray Foam Insulation page.
Open-Cell Spray Foam
Signs you need it
Upstairs rooms run 10 to 15 degrees hotter than downstairs in summer despite a full attic of fiberglass.
What it costs in Flower Mound
Open-cell spray foam in Flower Mound usually lands between $1.20 and $2.25 per board foot, with a typical attic floor application running $2,400 to $5,600.
How we do it
We seal top plates and penetrations first, confirm the attic is dry, then spray open-cell to the specified depth and document the install with photos before and after.
Closed-Cell Spray Foam
Signs you need it
You want the highest R-value per inch and a vapor barrier in one product, often for roof decks or flood-prone assemblies.
What it costs in Flower Mound
Closed-cell spray foam in Flower Mound typically ranges from $1.80 to $3.50 per board foot, with full attic floor applications commonly running $5,400 to $11,000.
How we do it
We prep the surface, verify framing is sound, and spray closed-cell in lifts to the engineered depth, then provide a written depth verification.
What Spray Foam Insulation Costs in Flower Mound
| Item | Typical range in Flower Mound |
|---|---|
| Open-cell attic floor (1,500 sq ft) | $2,400 - $5,600 |
| Closed-cell attic floor (1,500 sq ft) | $5,400 - $11,000 |
| Rim joist spray foam (typical 2-story home) | $1,200 - $2,800 |
Is spray foam worth the cost over blown-in insulation in Flower Mound?
Yes, if air leakage is the primary problem. Spray foam is the only insulation that seals as it insulates, and a blower-door test before and after will show the CFM50 change in one number. Call (218) 261-7714 for a written price.
Can you spray foam the roof deck on a Flower Mound bonus room?
Yes, and it is a common fix for bonus rooms over garages. The roof deck assembly turns the attic into conditioned space, which removes the garage-heat problem entirely. We will price it before any work starts.
Blown-In Insulation in Flower Mound

Blown-in insulation is the most common upgrade for Flower Mound homes built in the 1990s and early 2000s, where settled R-19 to R-30 fiberglass leaves attic floors far under the R-49 target for Climate Zone 3. The sequence matters: we air seal the attic floor first, then blow fresh material over the sealed surface. That is the difference between adding insulation and actually changing the home’s performance. Details on material choice, depth charts, and the sealing-first policy are on the Blown-In Insulation page.
Blown-In Fiberglass
Signs you need it
Your attic insulation measures under R-38 by visual inspection, which covers the majority of Flower Mound attics built before 2010.
What it costs in Flower Mound
Blown-in fiberglass in Flower Mound typically costs $1.10 to $1.80 per square foot, so a 1,500-square-foot attic upgrade to R-49 runs roughly $1,650 to $2,700.
How we do it
We seal the attic floor penetrations, mark the target depth on joists, and blow fiberglass to a uniform R-49, photographing the settled depth before we leave.
Dense-Pack Wall Insulation
Signs you need it
Exterior walls feel cold to the touch in winter, and your home has the original R-11 or R-13 batts in 2×4 cavities.
What it costs in Flower Mound
Dense-pack wall insulation in Flower Mound usually runs $1.80 to $3.25 per square foot of wall area, with a typical 2,000-square-foot single-story home landing between $3,600 and $6,500.
How we do it
We drill small access holes through the exterior or interior drywall, dense-pack the cavity to a verified pressure, and patch the holes to finish.
What Blown-In Insulation Costs in Flower Mound
| Item | Typical range in Flower Mound |
|---|---|
| Attic top-up to R-49 (1,500 sq ft) | $1,650 - $2,700 |
| Full attic removal and re-blow (1,500 sq ft) | $2,300 - $4,100 |
| Dense-pack walls (2,000 sq ft home) | $3,600 - $6,500 |
How much insulation should a Flower Mound attic have?
R-49 is the current recommendation for North Texas Climate Zone 3. Most Flower Mound homes have R-19 to R-30, so an upgrade is almost always warranted. Call (218) 261-7714 for a free attic assessment.
Can you blow insulation over old insulation in Flower Mound?
Yes, as long as the old material is dry and uncontaminated. We air seal first, then blow fresh material to the target depth. Get a written price before any work starts.
Radiant Barrier Installation in Flower Mound

A radiant barrier in a Flower Mound attic cuts the heat that radiates down from a roof deck that reaches 140°F or more in July. It is a foil surface, usually stapled to the underside of the rafters, that reflects radiant heat back toward the roof instead of letting it soak into the insulation below. Paired with proper insulation, it takes a measurable load off the air conditioner in a 3,000-square-foot home. We install radiant barrier in Flower Mound attics after air sealing, and we document the finished coverage with photos. Full details on product types and heat-flow mechanics are on the Radiant Barrier Installation page.
Attic Radiant Barrier
Signs you need it
Your upstairs rooms stay hot late into the evening even after the attic insulation was topped up.
What it costs in Flower Mound
Attic radiant barrier installation in Flower Mound typically runs $0.45 to $0.85 per square foot of attic floor area, so a 1,500-square-foot attic lands between $675 and $1,275.
How we do it
We staple the foil to the underside of the rafters, leaving a continuous reflective face, and photograph the coverage from multiple angles.
Radiant Barrier & Ventilation
Signs you need it
The attic is both hot and stagnant, with soffit vents partially blocked by old insulation and no clear airflow path.
What it costs in Flower Mound
A radiant barrier with ventilation correction in Flower Mound runs $1,000 to $2,400 for a typical 1,500-square-foot attic.
How we do it
We clear the soffit vents, verify intake and exhaust balance, then install the radiant barrier across the rafter bays.
What Radiant Barrier Installation Costs in Flower Mound
| Item | Typical range in Flower Mound |
|---|---|
| Attic radiant barrier (1,500 sq ft) | $675 - $1,275 |
| Radiant barrier with ventilation correction | $1,000 - $2,400 |
| Radiant barrier roof deck (painted) | $1.25 - $2.50 per sq ft installed |
Does a radiant barrier replace insulation in a Flower Mound attic?
No. A radiant barrier reflects radiant heat but does not slow conductive heat transfer the way insulation does. The two work together, and we recommend both. Call (218) 261-7714 for a written price.
Will a radiant barrier lower my summer cooling bill in Flower Mound?
It can cut attic radiant heat gain by 30 to 40 percent, which translates to lower cooling demand in a Flower Mound summer. The exact savings depend on the home’s insulation and air sealing.
Insulation Removal & Replacement in Flower Mound

Insulation removal in Flower Mound is a specific job with two common triggers: water damage from a roof leak or burst pipe, and rodent contamination that leaves droppings and urine throughout the attic. The 1990s-era attics across Flower Mound are especially vulnerable, because the original insulation was laid over dozens of penetrations that were never sealed. We remove the old material with a commercial vacuum system, sanitize where needed, air seal the attic floor, and then replace the insulation to R-49. The full sequence, including the sealing-first policy and material options, is on the Insulation Removal & Replacement page.
Attic Insulation Removal
Signs you need it
You see water staining on the drywall below the attic, or the existing insulation is compressed and stained from a past leak.
What it costs in Flower Mound
Attic insulation removal in Flower Mound typically runs $0.80 to $1.50 per square foot, so a 1,500-square-foot attic lands between $1,200 and $2,250.
How we do it
We run a commercial vacuum line from the attic to a containment bag outside, remove all old material to the deck, and photograph the clean deck before any new work.
Insulation Replacement
Signs you need it
The old insulation is wet, moldy, or rodent-contaminated, and simply blowing over it would seal the problem inside the attic.
What it costs in Flower Mound
Removal plus replacement with blown fiberglass to R-49 in Flower Mound runs $1,900 to $3,750 for a 1,500-square-foot attic.
How we do it
We remove, sanitize, seal penetrations, then blow new insulation to R-49 and provide a written depth record with before-and-after photos.
What Insulation Removal & Replacement Costs in Flower Mound
| Item | Typical range in Flower Mound |
|---|---|
| Attic insulation removal (1,500 sq ft) | $1,200 - $2,250 |
| Removal and R-49 replacement | $1,900 - $3,750 |
| Contaminated insulation removal with sanitizing | $1,500 - $2,800 |
Can you remove insulation without damaging my Flower Mound ceiling?
Yes. We use a vacuum system designed for attic work, not shovels or rakes, so the ceiling below is never touched. Call (218) 261-7714 for a written quote.
How do I know if my Flower Mound attic insulation needs replacement instead of a top-up?
Water staining, a persistent musty odor, or visible rodent droppings are all signals to replace. Blowing over contaminated material traps the problem, so we recommend removal first.
Attic Air Sealing in Flower Mound

Attic air sealing is the step most Flower Mound homes skip, and it is the step that changes the numbers. A blower-door test on a 1990s Flower Mound home typically reads 3,500 to 5,000 CFM50 before sealing; after sealing top plates, can lights, and duct boots, that number drops by a third to a half. We will not blow insulation over an unsealed attic floor, because the insulation cannot do its job while conditioned air pours through the gaps. Sealing comes first, every time, and the before-and-after blower-door numbers are published on every applicable job. The full sealing sequence and the reasoning behind it are on the Attic Air Sealing page.
Attic Floor Air Sealing
Signs you need it
Your upstairs rooms are drafty in winter and hot in summer despite having what looks like adequate attic insulation.
What it costs in Flower Mound
Attic floor air sealing in Flower Mound typically runs $1.25 to $2.50 per square foot of attic floor, with most 1,500-square-foot attics landing between $1,875 and $3,750.
How we do it
We pull back the existing insulation, seal every penetration with foam or caulk, and then re-cover the floor with the same or new insulation.
Can Light & Duct Boot Sealing
Signs you need it
You can feel air moving around recessed lights or see dust streaks on the ceiling around duct registers.
What it costs in Flower Mound
Sealing can lights and duct boots in Flower Mound typically adds $350 to $800 to an attic air sealing job, depending on the count.
How we do it
We install airtight covers over non-IC-rated housings, seal the drywall gap around each boot with mastic or foam, and verify with a smoke pencil.
What Attic Air Sealing Costs in Flower Mound
| Item | Typical range in Flower Mound |
|---|---|
| Full attic floor air sealing (1,500 sq ft) | $1,875 - $3,750 |
| Can light and duct boot sealing (add-on) | $350 - $800 |
| Attic hatch sealing and insulation | $250 - $500 |
Can you air seal my Flower Mound attic without replacing the insulation?
Yes. We pull the existing insulation back, seal the floor, and then re-install the same insulation. If it is below R-49, we will recommend topping it up, but the choice is yours. Call (218) 261-7714.
How do I know if air sealing helped in Flower Mound?
The blower-door numbers tell you. We record CFM50 before sealing and after, and the difference is printed on the documentation you keep. No guesswork.
Wall Insulation in Flower Mound

Wall insulation in Flower Mound addresses a specific gap: the original R-11 or R-13 batts in 2×4 walls that dominate the city’s 1990s and early 2000s construction. Those thin batts leave wall cavities under-insulated, and over time they sag and settle, creating voids at the top of each cavity. The result is exterior walls that feel cold in winter and radiate heat in summer, even in a house with a well-insulated attic. Dense-pack and injection foam methods fill the cavity completely without opening the drywall. The methods, material choices, and cavity-fill verification are on the Wall Insulation page.
Drill & Fill Wall Insulation
Signs you need it
Exterior walls feel cold to the touch in winter, or you can hear outside noise through closed windows and walls.
What it costs in Flower Mound
Drill-and-fill wall insulation in Flower Mound typically runs $1.80 to $3.25 per square foot of wall area, with a typical single-story home landing between $3,600 and $6,500.
How we do it
We drill small access holes through the exterior or interior, dense-pack the cavity to a verified pressure, and patch the holes cleanly.
Interior Wall Soundproofing
Signs you need it
You hear conversations, plumbing, or footfall through interior walls, especially around bedrooms and home offices.
What it costs in Flower Mound
Interior wall soundproofing in Flower Mound runs $2.00 to $3.50 per square foot of wall area, with a typical 100-square-foot wall landing between $200 and $350.
How we do it
We dense-pack the cavity with cellulose or install acoustic batts, then verify fill and provide a written record of the material used.
What Wall Insulation Costs in Flower Mound
| Item | Typical range in Flower Mound |
|---|---|
| Drill-and-fill exterior walls (2,000 sq ft home) | $3,600 - $6,500 |
| Injection foam wall insulation | $2.50 - $4.00 per sq ft of wall |
| Interior wall soundproofing | $2.00 - $3.50 per sq ft of wall |
Can you insulate the walls in my Flower Mound home without removing drywall?
Yes. Drill-and-fill and injection foam both work through small access holes, so the drywall stays in place. Call (218) 261-7714 for a written price.
Will wall insulation make a difference if my Flower Mound attic is already R-49?
Yes. Walls are about 20 to 25 percent of the home’s exterior surface area. An R-49 attic cannot compensate for uninsulated or under-insulated wall cavities.
Attic Cleaning & Rodent Proofing in Flower Mound

Attic cleaning and rodent proofing in Flower Mound is a two-part job: remove what rodents left behind, then close the paths they used to get in. Flower Mound’s master-planned subdivisions back up to greenbelts and creeks, which means squirrels, rats, and mice have a steady supply of entry routes into garage eaves and soffit gaps. Once inside, they nest in the insulation, leave droppings throughout the attic, and chew through wiring and ductwork. We remove the contaminated material, sanitize the space, and seal the entry points. The full sequence including exclusion work and sanitizing standards is on the Attic Cleaning & Rodent Proofing page.
Attic Cleanout
Signs you need it
You hear scratching in the ceiling at night, or you see droppings and nesting material when you look into the attic.
What it costs in Flower Mound
Attic cleanout in Flower Mound typically runs $1,200 to $2,800 for a 1,500-square-foot attic, depending on contamination level.
How we do it
We vacuum out the contaminated insulation, bag and discard it, and photograph the clean deck before any sanitizing or sealing.
Rodent Proofing & Exclusion
Signs you need it
Rodents have returned after a previous trapping or removal attempt, which means the entry points are still open.
What it costs in Flower Mound
Rodent proofing and exclusion in Flower Mound runs $400 to $1,200 for a typical single-family home, depending on the number of gaps.
How we do it
We seal soffit gaps, gable vents, and roof penetrations with steel mesh and foam, then verify no daylight remains around the entry points.
What Attic Cleaning & Rodent Proofing Costs in Flower Mound
| Item | Typical range in Flower Mound |
|---|---|
| Attic cleanout (1,500 sq ft) | $1,200 - $2,800 |
| Sanitizing and decontamination | $300 - $700 |
| Rodent proofing and exclusion | $400 - $1,200 |
Can you get rid of the smell from rodent contamination in my Flower Mound attic?
Yes. After removing the contaminated insulation, we sanitize the deck and framing with an enzyme-based treatment. The odor goes with the material. Call (218) 261-7714 for a written assessment.
Do you seal the entry points or just clean the attic in Flower Mound?
We do both. Cleaning without exclusion leaves the door open for the next animal. The written scope lists every gap we sealed, with photos.
Home Energy Audit in Flower Mound

A home energy audit in Flower Mound is the diagnostic step that tells you exactly where your home is losing conditioned air. We run a blower-door test, which pressurizes the house and shows, in one number, how much air the envelope is leaking. Then we walk the home with a thermal imaging camera to find the exact locations. For a 1990s Flower Mound home, the audit typically reveals air leakage at attic penetrations, duct boots, and the bonus-room wall, plus under-insulated wall and attic cavities. The complete audit sequence and the measurements you’ll receive are on the Home Energy Audit page.
Blower Door Test
Signs you need it
You want a single number that tells you how leaky your Flower Mound home’s envelope is before you spend money on any upgrade.
What it costs in Flower Mound
A standalone blower door test in Flower Mound runs $250 to $500, and it is included with most full insulation projects.
How we do it
We mount the blower door in an exterior door frame, depressurize the house, and record the CFM50 reading before and after any sealing work.
Thermal Imaging Inspection
Signs you need it
You can feel drafts and temperature differences, but you cannot tell where the gaps are actually located.
What it costs in Flower Mound
A thermal imaging inspection in Flower Mound runs $150 to $350 when done as part of an energy audit.
How we do it
We scan the walls, ceilings, and attic floor with an infrared camera while the house is under pressure, marking every anomaly in a written report.
What Home Energy Audit Costs in Flower Mound
| Item | Typical range in Flower Mound |
|---|---|
| Full home energy audit with blower door | $350 - $600 |
| Blower door test only | $250 - $500 |
| Thermal imaging inspection only | $150 - $350 |
What does a blower door test actually tell me in Flower Mound?
It gives you a CFM50 number: how many cubic feet per minute the house leaks at 50 pascals of pressure. Before-and-after readings show the sealed result in one figure. Call (218) 261-7714 to schedule one.
Do I need an energy audit before insulation work in Flower Mound?
Not always, but we recommend a blower-door reading before any sealing work so you have the before number. The cost is included with most full insulation projects.
Brands We Service in Flower Mound
We install insulation products from Owens Corning, Johns Manville, Knauf, and Rockwool, and we stock the common fiberglass and foam materials locally for Flower Mound jobs. If you have a brand preference, we will match the material to the assembly and the budget, and we will tell you why a particular product fits your home. See our brands for the full line.
Pricing for Insulation in Flower Mound, TX

| Service | Typical range in Flower Mound |
|---|---|
| Open-cell spray foam attic floor (1,500 sq ft) | $2,400 - $5,600 |
| Closed-cell spray foam attic floor (1,500 sq ft) | $5,400 - $11,000 |
| Blown-in fiberglass top-up to R-49 (1,500 sq ft) | $1,650 - $2,700 |
| Dense-pack wall insulation (2,000 sq ft home) | $3,600 - $6,500 |
| Attic radiant barrier (1,500 sq ft) | $675 - $1,275 |
| Attic insulation removal (1,500 sq ft) | $1,200 - $2,250 |
| Attic floor air sealing (1,500 sq ft) | $1,875 - $3,750 |
| Full home energy audit | $350 - $600 |
Attic accessibility, contamination, and the number of penetrations that need sealing are the main factors that push Flower Mound jobs toward the higher end of these ranges. Every job starts with a written price, a written scope, and a written warranty before anyone lifts a tool. That is the Haven Standard, and there are no exceptions.
Neighborhoods We Serve in Flower Mound
We work throughout Flower Mound, from the larger master-planned communities on the west side to the older subdivisions east of 2499. Our scheduling routes crews through the area most weekdays, and same-week appointments are typically available.
- Bridlewood
- Wellington
- Chimney Rock
- Timber Creek
- The Villages of Northshore
Service Area - Cities Near Flower Mound
Topside Attic Insulation serves Flower Mound and surrounding North Texas communities from a Dallas-Fort Worth dispatch office. We also work in Lewisville, TX, North Richland Hills, TX, Carrollton, TX, and Grand Prairie, TX. Call (218) 261-7714 to confirm scheduling in your area.
Serving Flower Mound, TX - Our Local Coverage Area
We’re based in the Flower Mound 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 Flower Mound
We schedule estimates across Flower Mound most weekdays, and same-week appointments are typical. A live person answers the phone 24/7, so you will not sit through a voicemail loop when you call (218) 261-7714.
Most insulation work happens inside the attic or wall cavities, so HOA approval is rarely required in Flower Mound. If exterior drilling is needed for dense-pack walls, we will confirm the requirements with your HOA before scheduling.
Yes. Every job includes a Documented Photo Record, and on applicable jobs you receive before-and-after blower-door readings. The written scope and written warranty are delivered before work starts, under Haven Standard Clause 1.
Call (218) 261-7714 today for a free estimate on any insulation project in Flower Mound. We will give you a written price before any work starts, and you will have the documentation in hand when the crew leaves.
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 Flower Mound Customers Say
"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."They photographed rodent damage in the old insulation that we had no idea about, and priced the exclusion work separately so we could decide."
- Harriet N.