Fast, Reliable Spray Foam Insulation Across Manor
Spray foam insulation in Manor, TX typically costs $1,800-$4,500 for attic applications and $3,200-$7,800 for full open-cell roof-deck treatments, with most jobs completed in one day. We’re Envelope Insulation Co., and our crews serve Manor from our Austin dispatch office, usually arriving within 45 minutes of your scheduled window. We’ve sealed and insulated over 9,000 homes since 2016, and a growing share of them are in Manor’s newer subdivisions where builder-grade insulation was never designed for what this climate actually delivers.
Call (254) 970-2136 for a written price before any work starts - that’s Haven Standard Clause 1, no exceptions.
Why Envelope Insulation Co. Is Manor’s Preferred Spray Foam Insulation Company
Manor homeowners find us the same way most do: they read our three-star reviews as carefully as our five-star ones, then they call to ask about the blower-door numbers. We publish before-and-after pressurization readings on every applicable job - a single figure showing exactly how much conditioned air your home was losing before we started and how much it retains after we’re done. No feeling-based claims. Just the reading.
Our response time to Manor runs about 45 minutes from dispatch. We know the difference between ShadowGlen’s low-slope rooflines and Presidential Meadows’ steeper pitches, and we know which phase of construction in each subdivision left the worst air-sealing gaps. Our technicians are background-checked, uniformed, and named - you’ll get a text when yours is on the way. Calls are answered by a live person, 24/7. No voicemail loops.
Under our 365-Day Done Right Promise, if it’s not done right, we make it right. That applies to every completed job in Manor, backed by a written scope and written warranty delivered before anyone lifts a tool.
Our Spray Foam Insulation Services in Manor
Open-Cell Spray Foam
Open-cell spray foam is our most common recommendation for Manor attic applications. It expands to fill irregular framing cavities in the low-slope ceilings common in ShadowGlen and Presidential Meadows, creating a true R-38 thermal boundary at 5.5 inches depth. The material remains vapor-permeable, which matters in Manor’s hot-humid climate where moisture needs a path out. We source open-cell products from Icynene and Demilec - no proprietary lock-in, so you get the right foam for your specific assembly. Before we spray, we air-seal every top plate, can light, and penetration with targeted foam and caulk. Sealed first, then insulated. In that order.
Closed-Cell Spray Foam
Closed-cell spray foam delivers R-6.5 per inch and adds structural rigidity, making it the right choice for Manor garage ceiling applications where the garage shares a thermal boundary with living space above. It’s also what we use for rim joist treatments in crawl-space-adjacent slab homes where the Blackland Prairie clay has shifted the foundation envelope. Closed-cell is a vapor barrier at 1.5 inches, so we calculate dew-point location carefully before specifying thickness - especially important in Manor’s cooling-dominated climate where air conditioning runs eight months a year.
Rim Joist Spray Foam
Rim joist spray foam addresses the joint where your foundation wall meets the first floor - a detail that failed catastrophically across Manor during Winter Storm Uri. In slab-on-grade tract homes, the rim joist is often the weakest point in the thermal envelope: minimal insulation, minimal air sealing, and direct exposure to plumbing penetrations. We spray closed-cell foam to seal and insulate this critical junction, reducing stack effect in winter and blocking summer humidity migration. For homes in Presidential Meadows and ShadowGlen built between 2005 and 2015, this is frequently the highest-leverage single upgrade we can make.
Garage Ceiling Spray Foam
Garage ceiling spray foam is specifically for Manor homes where the garage sits under conditioned bedrooms - a common layout in newer tract construction. The builder typically installed R-19 fiberglass batts that sag within five years, creating a direct thermal bridge. We remove the degraded material, air-seal all penetrations, and spray open-cell or closed-cell foam depending on whether the garage is conditioned or vented. The result is a bedroom floor that doesn’t radiate summer heat or winter cold. We’ve documented temperature swings of 15-20 degrees at the floor surface after this treatment.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Use in Manor
We specify materials from Icynene, Demilec, and Owens Corning for our Manor jobs, selected based on the specific assembly we’re treating rather than a one-product-fits-all approach. Icynene’s open-cell line performs well in Manor’s vented attic applications where vapor permeability matters. Demilec’s closed-cell products give us the density we need for rim joist and garage ceiling work. Owens Corning provides complementary fiberglass and radiant barrier materials when a hybrid assembly makes more sense than foam alone. We stock locally and coordinate delivery to Manor from our Austin office, so material lead times don’t delay your project.
Common Spray Foam Insulation Problems We See in Manor Homes
- Settled builder-grade fiberglass losing effective R-value. The R-30 blown fiberglass installed in most Manor tract homes settles to R-20-R-22 within five to eight years of exposure to 150°F+ attic temperatures. Homeowners notice it first as hot bedrooms in August, then as electric bills that climb year over year.
- Blackland Prairie clay slab movement opening air leakage paths. The heavy expansive clay beneath Manor shifts with moisture cycles, creating gaps at wall-plate connections and around MEP penetrations that were tight at build-out. A blower-door test typically reveals 15-30% more leakage than the same floor plan on stable sandy soils.
- Minimal air sealing around plumbing penetrations. Winter Storm Uri exposed this across Manor: slab homes with unsealed tub and sink penetrations lost heat rapidly, and the garage ceiling thermal bridge carried cold into adjacent walls. Spray foam at the rim joist and garage ceiling breaks this path.
- Recessed light fixtures acting as chimney flues. IC-rated can lights in Manor ceilings are rarely sealed at the attic side. In summer, they draw 130°F attic air directly into conditioned space. We seal with fire-rated foam caps before spraying, eliminating this bypass.
Pricing for Spray Foam Insulation in Manor, TX
| Application | Typical Range in Manor | What Drives the Price |
|---|---|---|
| Open-cell attic (1,800 sq ft ceiling) | $1,800 - $3,400 | Accessibility, existing insulation removal, soffit baffling needed |
| Closed-cell garage ceiling (2-car) | $1,400 - $2,600 | Height, obstructions, whether drywall removal is required |
| Rim joist (per linear foot) | $8 - $14 | Foundation type, plumbing density, access clearance |
| Full open-cell roof deck (1,800 sq ft) | $3,200 - $7,800 | Roof pitch, sheathing condition, need for ignition barrier |
Most Manor homes we treat fall in the middle of these ranges. The specific number depends on what we find when we inspect: whether the existing insulation can stay or must be removed, how many penetrations need individual sealing, and whether the roof deck requires an ignition barrier per current code. We give you a flat written price before any work starts - Haven Standard Clause 1 - and we offer a Free Second Opinion on any written estimate you’ve already received. Bring us a competing quote; we’ll read it with you.
Call (254) 970-2136 for your written estimate. Estimates are free, and we include a Documented Photo Record with every visit.
We Also Serve Cities Near Manor
Our crews work throughout the eastern Austin metro, including Manor, Pflugerville, Elgin, Hutto, and Austin proper. Dispatch and scheduling are coordinated from our Austin office, with technicians routed to minimize drive time to your job. If you’re in a nearby community and found this page, the same pricing structure and Haven Standard commitments apply - only the local building patterns change.
Serving Manor, TX - Our Local Coverage Area
We’re based in the Manor 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 - Spray Foam Insulation in Manor
Because R-30 fiberglass in a 150°F Manor attic performs like R-20 within five to eight years, and the R-value printed on the bag assumes 70°F test conditions - not the actual environment your insulation lives in. We were called to a ShadowGlen home where the homeowner’s first August electric bill had doubled their expectation; our tech found the original R-30 blown fiberglass settled to R-22, with visible dust streaks at every recessed light and top plate. We air-sealed the attic floor, baffled the soffits, and sprayed open-cell foam across the low-slope ceiling to lock in a true R-38 thermal boundary - cutting the attic temperature swing by over 40 degrees the following week. Call (254) 970-2136 for a written price on upgrading your thermal boundary.
Because Blackland Prairie clay soil moves, and that movement opens gaps at wall plates and penetrations that were sealed when the house was new. A home that passed blower-door testing at 4.5 ACH50 in 2012 often reads 6.5-8.0 ACH50 today, purely from soil-driven envelope shift. The insulation itself didn’t fail; the air barrier around it did. Our blower-door-guided sealing locates these new leakage paths with precision, then we spray foam to seal them permanently. Call (254) 970-2136 and we’ll show you the before-and-after numbers on your specific house.
No - it’s often the most cost-effective upgrade in the house. Presidential Meadows floor plans frequently place bedrooms directly over unconditioned garage space, with only R-19 fiberglass separating them. That batts sags, creating a direct thermal bridge that makes those bedrooms the hottest in summer and coldest in winter. Spray foam at the garage ceiling eliminates the bridge and typically pays back in 3-5 years through reduced HVAC runtime. Call (254) 970-2136 for a written price on your specific ceiling area.
It helps significantly, but only when combined with proper air sealing at the rim joist and plumbing penetrations. Spray foam at the rim joist blocks the stack effect that pulls sub-freezing air into wall cavities, while sealing around penetrations prevents wind-washing at vulnerable pipe runs. We documented this after Uri: homes we had treated with rim joist foam and targeted air sealing had zero pipe failures, while identical floor plans in the same subdivision with builder-grade insulation saw multiple bursts. It’s not the foam alone; it’s the sealed envelope the foam creates. Call (254) 970-2136 for an assessment of your specific vulnerability points.
Open-cell, in nearly every case. Manor’s climate is cooling-dominated, and open-cell’s vapor permeability allows moisture to escape the assembly while its expansion fills the irregular cavities in low-slope tract-home ceilings. Closed-cell is reserved for garage ceilings, rim joists, and roof decks where structural rigidity or vapor barrier function is required. We specify based on the assembly, not a default product. Call (254) 970-2136 and our Spray Foam Insulation team will walk you through the choice for your specific home.
Written by Wes Okafor, Owner at Envelope Insulation Co., serving Manor since 2016 under The Haven Standard.