Insulation in Alamo Heights, TX
Crawl space encapsulation and vapor barrier installation in Alamo Heights typically runs $3,800-$7,500 for a full encapsulation, with most pier-and-beam homes in the area falling in the $4,500-$6,200 range depending on crawl space height and existing moisture damage. We’re Envelope Insulation Co., and we treat air sealing as a prerequisite, not an upsell - every job in Alamo Heights starts with a written price and ends with a documented record. Call (830) 243-6352 for a free estimate.
Why Alamo Heights Homes Are Different
Alamo Heights is an independent municipality entirely surrounded by San Antonio, with its own building department and permit process. Insulation contractors must pull Alamo Heights city permits, not San Antonio permits, even one block from the city boundary. The housing stock is dominated by 1920s-1950s custom homes built with little or no cavity insulation, many retaining original plaster-over-lath walls that homeowners strongly resist disturbing.
South-central Texas summers push attic temperatures to 150-160°F, making attic insulation the single highest-ROI upgrade here. The February 2021 freeze exposed how poorly insulated older pipe runs and unconditioned crawl spaces perform when temperatures plunge into the teens. Many older two-story brick homes along the Broadway corridor and in the Ogden/Tuxedo neighborhood have no wall insulation whatsoever - just brick veneer tied to wood sheathing over lath and plaster - meaning dense-pack blown-in through small exterior drill holes is often the only retrofit option that preserves historic interior finishes.
Our Main Alamo Heights Services
Alamo Heights homeowners call us most often for attic work and spray foam applications. Here are the three services with dedicated local pages:
Attic Insulation in Alamo Heights
Attic access in Alamo Heights homes is frequently tight or compartmentalized, and knob-and-tube wiring in older attic spaces complicates blown-in insulation installation. We assess framing, electrical, and ventilation before recommending fiberglass batts, blown-in cellulose, or spray foam. Every attic job includes top plate and penetration sealing before insulation goes in. Attic Insulation in Alamo Heights
Spray Foam Insulation in Alamo Heights
Spray foam excels in Alamo Heights homes with irregular framing, balloon construction, or areas where conventional batts leave gaps. We use open-cell and closed-cell products from Owens Corning and Demilec, selected for the specific assembly - roof decks, rim joists, or enclosed wall cavities. Written scope and warranty delivered before work starts. Spray Foam Insulation in Alamo Heights
Blown-In Insulation in Alamo Heights
Blown-in fiberglass or cellulose is often the practical choice for Alamo Heights attics with limited access or multiple small compartments. We dense-pack walls through exterior drill holes to preserve plaster interiors, and we never blow insulation over an unsealed attic floor. Blower-door numbers provided on every applicable job. Blown-In Insulation in Alamo Heights
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.
Before
AfterCrawl Space Encapsulation & Vapor Barrier in Alamo Heights
Most Alamo Heights homes built before 1960 sit on pier-and-beam foundations with ventilated crawl spaces that draw humid Gulf air year-round, creating conditions for mold, wood rot, and sagging floors. A proper Crawl Space Encapsulation & Vapor Barrier installation seals that space from the soil and the outside air, transforming it into a conditioned zone that protects floor joists and improves indoor air quality. February 2021 proved how vulnerable uninsulated crawl spaces are here - frozen pipes and cold floors drove dozens of calls that month.
Crawl Space Vapor Barrier
Signs you need it
Standing water after rain, white mineral deposits on block walls, or a musty smell rising through floor registers in older Alamo Heights homes near Broadway.
What it costs in Alamo Heights
A 6-mil to 20-mil vapor barrier installed over bare earth in a typical Alamo Heights crawl space runs $1,200-$2,800.
How we do it
We remove debris, grade the soil, seam-seal the polyethylene sheeting at all overlaps, and mechanically fasten it to foundation walls before sealing wall penetrations.
Crawl Space Encapsulation
Signs you need it
Soft or bouncy floors, visible mold on joists, or energy bills that spike despite attic insulation upgrades in 1930s-era homes.
What it costs in Alamo Heights
Full encapsulation with closed-cell foam on walls, sealed vents, and a dehumidifier for a typical Alamo Heights pier-and-beam home runs $4,500-$8,500.
How we do it
We seal all vents and penetrations, apply foam insulation to walls, install the vapor barrier, and add a commercial dehumidifier with a condensate pump.
What Crawl Space Encapsulation & Vapor Barrier Costs in Alamo Heights
| Item | Typical range in Alamo Heights |
|---|---|
| Vapor barrier (6-20 mil, earth cover only) | $1,200 - $2,800 |
| Partial encapsulation (walls + barrier, no dehumidifier) | $3,000 - $5,500 |
| Full encapsulation with dehumidifier | $4,500 - $8,500 |
Does encapsulation help with frozen pipes in Alamo Heights?
Yes - a fully encapsulated crawl space maintains temperatures 15-25°F warmer than a ventilated one, which is the difference between burst pipes and intact ones during a freeze like February 2021. Call (830) 243-6352 for an exact quote - estimates are free.
How long does crawl space work take in Alamo Heights?
Most vapor barriers install in one day; full encapsulations with foam and dehumidification take two to three days, depending on crawl space height and access. Call (830) 243-6352 for an exact quote - estimates are free.
Radiant Barrier Installation in Alamo Heights
Attic temperatures in Alamo Heights regularly hit 150-160°F from May through September, and homes with dark shingle roofs or poor ventilation suffer the most. A Radiant Barrier Installation reflects that infrared heat back toward the roof deck rather than letting it radiate into conditioned space, reducing attic heat gain by 20-35% in typical local installations. For 1940s and 1950s homes with minimal existing insulation, this is often the fastest-payback upgrade we offer.
Attic Radiant Barrier
Signs you need it
Second-floor rooms that stay 10-15°F hotter than downstairs, or ductwork in the attic that feels hot to the touch even when the AC is running.
What it costs in Alamo Heights
Radiant barrier foil stapled to rafters or laid over attic floor insulation in a typical Alamo Heights home runs $1,500-$3,200.
How we do it
We install perforated foil across rafter bays or drape it over existing insulation, maintaining ventilation pathways and ensuring electrical clearances per Alamo Heights permit requirements.
Radiant Barrier Roof Deck
Signs you need it
New roof installation planned, or existing roof deck visible from inside the attic with no radiant barrier present.
What it costs in Alamo Heights
Spray-applied radiant barrier coating or foil-backed sheathing during re-roofing runs $2,000-$4,500 depending on roof pitch and square footage.
How we do it
We coordinate with the roofing contractor to apply low-emissivity coating or install foil-faced OSB during tear-off, documenting the application with photos for the homeowner’s record.
What Radiant Barrier Installation Costs in Alamo Heights
| Item | Typical range in Alamo Heights |
|---|---|
| Foil radiant barrier, attic install | $1,500 - $3,200 |
| Radiant barrier roof deck application | $2,000 - $4,500 |
| Radiant barrier with attic air sealing package | $2,800 - $5,500 |
Does radiant barrier work with existing attic insulation?
Yes - it complements rather than replaces insulation; we often pair it with air sealing and blown-in fiberglass from Johns Manville for a complete attic upgrade. Call (830) 243-6352 for an exact quote - estimates are free.
Will radiant barrier affect my roof warranty?
Perforated foil installed with proper ventilation clearances does not void warranties; we document the installation method and materials for your roofer’s review. Call (830) 243-6352 for an exact quote - estimates are free.
Insulation Removal & Replacement in Alamo Heights
Homes in Alamo Heights built from the 1920s through 1950s often contain original rock wool, vermiculite, or degraded fiberglass batts that have settled, compressed, or been compromised by roof leaks or rodent activity. Insulation Removal & Replacement is the first step before any new insulation can perform as rated - we never install over contaminated or water-damaged material. The plaster-over-lath construction common here means interior access is limited, so we often remove from the attic side or through selective exterior openings.
Contaminated Insulation Removal
Signs you need it
Visible droppings, urine staining, or a strong ammonia smell in the attic of a 1930s Tudor Revival near the Broadway corridor.
What it costs in Alamo Heights
Contaminated insulation removal with HEPA containment and disposal in Alamo Heights runs $2,500-$5,000 depending on attic square footage and contamination level.
How we do it
We establish negative air pressure, remove material in sealed bags, apply antimicrobial treatment to exposed surfaces, and provide photos of the cleaned cavity before any new insulation is specified.
Vermiculite & Old Insulation Removal
Signs you need it
Gray-brown granular material that resembles small pebbles, installed before 1990, particularly in homes with original knob-and-tube wiring.
What it costs in Alamo Heights
Vermiculite removal with asbestos testing, abatement coordination, and disposal runs $4,000-$8,500 depending on volume and test results.
How we do it
We collect samples for laboratory analysis, coordinate licensed abatement if asbestos is present, and document the cleared attic with photos before designing the replacement system.
What Insulation Removal & Replacement Costs in Alamo Heights
| Item | Typical range in Alamo Heights |
|---|---|
| Standard insulation removal (fiberglass/cellulose) | $1,500 - $3,500 |
| Contaminated insulation removal | $2,500 - $5,000 |
| Vermiculite removal with abatement | $4,000 - $8,500 |
Can you remove insulation without damaging plaster ceilings?
Yes - we access from the attic side or through exterior wall openings; we do not cut into plaster ceilings unless structural repair is already planned. Call (830) 243-6352 for an exact quote - estimates are free.
How do I know if my old insulation contains asbestos?
Vermiculite and some early fiberglass products may contain asbestos; we collect samples for certified lab analysis before disturbing any material that appears pre-1990. Call (830) 243-6352 for an exact quote - estimates are free.
Attic Air Sealing in Alamo Heights
The balloon framing and irregular top plates common in Alamo Heights homes built before 1950 create direct air pathways from crawl space or wall cavities into the attic, bypassing any insulation present. Attic Air Sealing closes these pathways at the ceiling plane - the single most cost-effective envelope improvement for most local homes, and a hard prerequisite before we add any insulation. We publish before-and-after blower-door numbers on every job so homeowners see the measured reduction in air leakage.
Top Plate & Penetration Sealing
Signs you need it
Dust streaks on insulation around wall top plates, or rooms that feel drafty despite closed windows in 1940s ranch-style homes.
What it costs in Alamo Heights
Sealing top plates, wire penetrations, and plumbing stacks in a typical Alamo Heights attic runs $1,800-$3,500.
How we do it
We remove existing insulation to expose the ceiling plane, seal all gaps with fire-rated caulk and foam, install baffles at eaves, and provide blower-door readings before and after.
Can Light & Duct Boot Sealing
Signs you need it
Recessed can lights that leak attic air into living space, or supply registers that blow dust when the HVAC first cycles on.
What it costs in Alamo Heights
Sealing can lights with pre-approved covers and mastic-sealing duct boots runs $800-$2,200 depending on fixture count and duct configuration.
How we do it
We install fire-rated covers over IC and non-IC cans, seal with fire-stop caulk, and apply mastic to all duct connections before replacing insulation.
What Attic Air Sealing Costs in Alamo Heights
| Item | Typical range in Alamo Heights |
|---|---|
| Top plate and penetration sealing | $1,800 - $3,500 |
| Can light and duct boot sealing | $800 - $2,200 |
| Full attic air sealing (comprehensive) | $2,500 - $5,000 |
What is a blower-door test and why do you publish the numbers?
A blower-door test pressurizes the house to measure total air leakage in CFM50; we publish before-and-after readings so you can verify the actual performance change, not just take our word for it. Call (830) 243-6352 for an exact quote - estimates are free.
Can air sealing be done without removing all attic insulation?
Partial removal is usually necessary to access top plates and penetrations; we section the work to minimize exposure and reinstall or replace insulation as part of the scope. Call (830) 243-6352 for an exact quote - estimates are free.
Wall Insulation in Alamo Heights
Many Alamo Heights homes - particularly the two-story brick residences along Broadway and in the Ogden/Tuxedo area - were built with no wall insulation whatsoever, just brick veneer, wood sheathing, lath, and plaster. Wall Insulation retrofit here requires methods that preserve historic interiors, which homeowners in this market strongly resist disturbing. Dense-pack blown-in through small exterior drill holes is often the only viable option that maintains the original plaster finishes.
Drill & Fill Wall Insulation
Signs you need it
Exterior walls that are cold to the touch in winter, or rooms with south-facing windows that overheat despite closed blinds in summer.
What it costs in Alamo Heights
Dense-pack cellulose or fiberglass injected through exterior drill holes in a typical Alamo Heights home runs $3,500-$7,000 depending on wall area and accessibility.
How we do it
We drill 2-inch holes at stud-bay spacing, blow material to calculated density, plug with color-matched mortar or siding plugs, and provide a density log for each bay filled.
Injection Foam Wall Insulation
Signs you need it
Irregular stud bays in balloon-framed homes, or walls with blocking and fire stops that prevent top-down dense-pack filling.
What it costs in Alamo Heights
Slow-cure injection foam for irregular cavities in older Alamo Heights homes runs $4,500-$9,000 depending on wall area and foam type.
How we do it
We inject slow-rise foam at multiple points per bay, monitor expansion to prevent distortion of lath or plaster, and trim excess after full cure before sealing access points.
What Wall Insulation Costs in Alamo Heights
| Item | Typical range in Alamo Heights |
|---|---|
| Dense-pack drill & fill (cellulose/fiberglass) | $3,500 - $7,000 |
| Injection foam wall insulation | $4,500 - $9,000 |
| Exterior wall insulation with air sealing | $5,000 - $10,000 |
Will drill-and-fill damage my brick exterior?
We match mortar plugs to existing mortar color and profile; holes are drilled in mortar joints where possible, and we photograph every plug location for your record. Call (830) 243-6352 for an exact quote - estimates are free.
Can you insulate walls from the inside to preserve exterior appearance?
Interior access requires cutting plaster, which we avoid in Alamo Heights historic homes unless restoration work is already planned; exterior drill-and-fill is our standard recommendation. Call (830) 243-6352 for an exact quote - estimates are free.
Attic Cleaning & Rodent Proofing in Alamo Heights
The mature oak canopy and established neighborhoods of Alamo Heights support active squirrel, rat, and raccoon populations that frequently access attics through deteriorated fascia, unscreened vents, or gaps in older rooflines. Attic Cleaning & Rodent Proofing addresses both the contamination present and the access points that allow re-entry - we do not clean without also proofing, or the problem returns within a season. Every job includes a Documented Photo Record of contamination found, removal completed, and exclusion work installed.
Rodent Proofing & Exclusion
Signs you need it
Scratching sounds in walls at dawn or dusk, or visible chew marks on soffit vents and fascia boards in 1940s-era homes with original wood trim.
What it costs in Alamo Heights
Comprehensive rodent proofing with metal screening, hardware cloth, and sealant for a typical Alamo Heights home runs $1,500-$3,500.
How we do it
We inspect the roofline, soffits, vents, and foundation, install metal flashing and hardware cloth at all entry points, and provide photos of each sealed location.
Attic Sanitizing & Decontamination
Signs you need it
Visible droppings, stained insulation, or a persistent organic odor detectable from the attic hatch in homes with confirmed or suspected rodent activity.
What it costs in Alamo Heights
HEPA vacuuming, antimicrobial application, and odor treatment for a typical contaminated Alamo Heights attic runs $2,000-$4,500.
How we do it
We remove contaminated material under negative pressure, HEPA-vacuum all surfaces, apply enzyme-based sanitizer, and run an ozone or hydroxyl treatment before installing new insulation.
What Attic Cleaning & Rodent Proofing Costs in Alamo Heights
| Item | Typical range in Alamo Heights |
|---|---|
| Rodent proofing and exclusion | $1,500 - $3,500 |
| Attic sanitizing and decontamination | $2,000 - $4,500 |
| Full attic restoration (cleaning + proofing + insulation) | $4,500 - $9,000 |
How do I know if rodents are currently in my attic?
Fresh droppings, tracks in dust, or noises during quiet hours are reliable indicators; we inspect during daylight when animals are typically inactive to identify active entry points. Call (830) 243-6352 for an exact quote - estimates are free.
Does homeowners insurance cover rodent damage to insulation?
Most policies exclude rodent damage as a maintenance issue; we provide detailed photo documentation of damage found, which some carriers accept for supplemental claims depending on your policy terms. Call (830) 243-6352 for an exact quote - estimates are free.
Home Energy Audit in Alamo Heights
A Home Energy Audit is the starting point for every major envelope project we undertake in Alamo Heights, particularly for 1920s-1950s homes where the interaction of air leakage, insulation gaps, and HVAC distribution is complex and non-obvious. The audit identifies priority sequences - seal first, then insulate - so homeowners don’t spend money on insulation that gets undermined by unaddressed air leakage. We dispatch from our San Antonio office, with crews serving Alamo Heights locally.
Blower Door Test
Signs you need it
High utility bills despite recent HVAC replacement, or rooms that never reach set temperature in homes with original windows and doors.
What it costs in Alamo Heights
A standalone blower-door test with written report for an Alamo Heights home runs $350-$650.
How we do it
We install a calibrated fan in an exterior door, depressurize the house to 50 Pascals, and measure CFM50 while tracing leakage paths with smoke pencils and thermal imaging.
Thermal Imaging Inspection
Signs you need it
Visible temperature variations on walls or ceilings, or suspicion of missing insulation behind plaster in homes with no construction documentation.
What it costs in Alamo Heights
Thermal imaging as part of a comprehensive audit runs $200-$400; standalone inspection for specific concern areas runs $150-$300.
How we do it
We scan the building envelope with a calibrated infrared camera during heating or cooling season, identifying thermal bridges, air leakage patterns, and insulation voids for documentation.
What Home Energy Audit Costs in Alamo Heights
| Item | Typical range in Alamo Heights |
|---|---|
| Blower-door test with written report | $350 - $650 |
| Comprehensive home energy audit | $500 - $900 |
| Thermal imaging inspection (standalone) | $150 - $300 |
Does an energy audit include insulation recommendations?
Yes - the written report prioritizes air sealing and insulation measures by cost-effectiveness, with estimated savings and payback periods based on local utility rates. Call (830) 243-6352 for an exact quote - estimates are free.
Can I use audit results for CPS Energy rebates?
Our audit documentation meets CPS Energy program requirements; we note rebate-eligible measures in the report and can coordinate with your program timeline. Call (830) 243-6352 for an exact quote - estimates are free.
Brands We Service in Alamo Heights
We source materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber - no proprietary product lock-in means we specify what performs best for your specific assembly and budget. Common batts, blown-in, and spray foam products are stocked regionally with typical next-day availability for Alamo Heights jobs. our brands
Pricing for Insulation in Alamo Heights, TX
| Service | Typical range in Alamo Heights |
|---|---|
| Crawl space vapor barrier | $1,200 - $2,800 |
| Full crawl space encapsulation | $4,500 - $8,500 |
| Radiant barrier (attic install) | $1,500 - $3,200 |
| Insulation removal (standard) | $1,500 - $3,500 |
| Contaminated insulation removal | $2,500 - $5,000 |
| Vermiculite removal with abatement | $4,000 - $8,500 |
| Attic air sealing (comprehensive) | $2,500 - $5,000 |
| Dense-pack wall insulation | $3,500 - $7,000 |
| Injection foam wall insulation | $4,500 - $9,000 |
| Rodent proofing and exclusion | $1,500 - $3,500 |
| Home energy audit | $500 - $900 |
Prices in Alamo Heights trend toward the upper end of these ranges for homes with plaster-over-lath walls, balloon framing, or limited attic access that require specialized techniques. Every job begins with a written price - no work starts without it - under Haven Standard Clause 1.
Neighborhoods We Serve in Alamo Heights
We work throughout Alamo Heights, from the Broadway corridor to the residential streets north and south. Most calls receive same-day or next-day response.
- Broadway corridor
- Ogden/Tuxedo neighborhood
- Olmos Park Terrace vicinity
- Alamo Heights historic district
- Montclair neighborhood
Service Area - Cities Near Alamo Heights
Envelope Insulation Co. serves Alamo Heights and surrounding communities from our San Antonio office. We also work in New Braunfels, TX, Cibolo, TX, Seguin, TX, and Schertz, TX. Scheduling is coordinated locally; crews are dispatched to each market with materials and equipment for same-day starts on approved projects.
Serving Alamo Heights, TX - Our Local Coverage Area
We’re based in the Alamo Heights 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 Alamo Heights
Alamo Heights is an independent municipality with its own building department; we pull Alamo Heights city permits for all work requiring inspection, even for properties adjacent to San Antonio city limits. The permit fee and inspection schedule are included in your written price.
Most inquiries receive same-day phone response from a live person; site visits for estimates typically schedule within 48 hours, with emergency calls for active leaks or post-storm damage prioritized same-day when possible.
Yes - we document exterior work with before-and-after photos for HOA submission, and we use low-impact methods like exterior drill-and-fill that preserve visible facades and interior plaster finishes common in Alamo Heights historic properties.
Ready to improve your home’s envelope? Call (830) 243-6352 for a free estimate. We’ll provide a written price before any work starts, and you’ll receive a Documented Photo Record and, on applicable jobs, before-and-after blower-door numbers when the crew leaves. That’s the Haven Standard.
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 same-day.
- 4You approve before work beginsNothing starts until you say go.
What Alamo Heights Customers Say
"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."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.