Insulation in Redwood, TX
Crawl space encapsulation and vapor barrier installation in Redwood, TX typically runs $2,800-$6,500 for most pier-and-beam homes, with jobs completed in one to two days. Most Redwood homes were built when cross-ventilation passed for climate control, leaving crawl spaces open to the humid South-Central Texas air that rises through floors and rots joists. We’re Envelope Insulation Co., and we treat air sealing as a hard prerequisite before any insulation goes in. Call (737) 337-8049 for a written price before any work starts.
Why Redwood Homes Are Different
Redwood sits in Gonzales County’s semi-rural stretch, where farmhouses and modest ranch-style homes from the mid-20th century or earlier still dominate the housing stock. Many were built with little to no original attic insulation, and pier-and-beam foundations leave crawl spaces fully exposed to ground moisture. After Winter Storm Uri in 2021, homeowners here discovered what decades of mild winters had hidden: walls and floors with zero insulation, not just inadequate insulation. Summer attic temperatures regularly exceed 150°F, while the humid subtropical climate degrades fiberglass batts and invites mold. The terrain is flat, the soil is clay-heavy, and the building codes that applied when these homes went up barely addressed envelope performance. We dispatch crews from our Dallas-Fort Worth office and serve Redwood directly.
Our Main Redwood Services
Redwood homeowners call us most often about attic heat gain and crawl space moisture. These three services address both:
Attic Insulation in Redwood
Unconditioned attics in Redwood reach temperatures that cook the rooms below. We start with a blower-door test to measure air leakage, seal top plates and penetrations, then install insulation that performs against both summer radiant heat and winter cold snaps. Every job gets before-and-after pressurization numbers. Attic Insulation in Redwood covers full scope and pricing.
Spray Foam Insulation in Redwood
Spray foam creates an air barrier and insulation layer in one pass, which matters in older Redwood homes where framing gaps are common. We use open-cell and closed-cell products from Icynene and Demilec, selected for the application, not proprietary lock-in. The Haven Standard requires a written price before anyone lifts a tool. Spray Foam Insulation in Redwood details material options and costs.
Blown-In Insulation in Redwood
Blown-in cellulose or fiberglass fills irregular joist bays and covers over existing compressed batts without full removal. In Redwood’s older attics with mixed framing depths, blown-in provides consistent coverage where batts leave gaps. We air seal first, then blow. Blown-In Insulation in Redwood explains coverage depths and blower-door targets.
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 Redwood
Most Redwood homes sit on pier-and-beam foundations with belly boards or open crawl spaces that breathe humid South-Central Texas air straight into the floor system. Ground moisture wicks into joists, insulation sags and molds, and the crawl space becomes a reservoir for the humidity that degrades indoor air quality. Crawl Space Encapsulation & Vapor Barrier is often the first step toward a conditioned, dry envelope in this area.
Crawl Space Vapor Barrier
Signs you need it
Your crawl space has standing water after rain, joist ends are darkening, or fiberglass batts hang wet and compressed from the floor above.
What it costs in Redwood
A 6-mil to 20-mil vapor barrier installed over bare earth in a typical Redwood crawl space runs $1,200-$2,800.
How we do it
We rake and level the ground, seam-tape a reinforced polyethylene sheet up piers and walls, and seal all penetrations before any insulation goes back in.
Crawl Space Encapsulation
Signs you need it
Your floors feel cold in winter despite the heat running, humidity readings in the crawl space stay above 70% year-round, or you smell mustiness that worsens in summer.
What it costs in Redwood
Full encapsulation with sealed vapor barrier, conditioned-air supply, and dehumidification for a typical Redwood home runs $4,500-$8,500.
How we do it
We seal all vents, install a reinforced liner on floors and walls, add a dedicated dehumidifier, and bring in a small conditioned-air supply to maintain positive pressure.
What Crawl Space Encapsulation & Vapor Barrier Costs in Redwood
| Item | Typical range in Redwood |
|---|---|
| Vapor barrier (6-20 mil, earth only) | $1,200-$2,800 |
| Partial encapsulation (walls + floor, no conditioning) | $3,200-$5,500 |
| Full encapsulation with dehumidifier | $4,500-$8,500 |
How long does crawl space encapsulation take in Redwood?
Most vapor barrier jobs finish in one day; full encapsulation with dehumidification takes two to three days. We deliver a written scope and warranty before starting, and you receive a Documented Photo Record when we leave. Call (737) 337-8049 for a written price.
Will encapsulation stop my floors from feeling cold?
Yes, by blocking ground moisture and reducing conductive heat loss through the floor assembly. We measure before-and-after conditions and include the readings in your project record. Call (737) 337-8049 for a free second opinion on any written estimate.
Radiant Barrier Installation in Redwood
Redwood attics become solar ovens from June through September, with roof decks radiating heat downward into living spaces that original builders never intended to cool mechanically. A radiant barrier reflects that infrared energy back toward the roof deck rather than letting it absorb into insulation and framing. In homes with minimal existing attic insulation, radiant barrier often delivers the fastest comfort improvement per dollar spent.
Attic Radiant Barrier
Signs you need it
Your attic insulation is adequate but rooms below still heat up rapidly after noon, or your AC runs continuously on sunny days despite recent service.
What it costs in Redwood
Radiant barrier foil stapled to rafters or laid over attic floor insulation in a typical Redwood home runs $1,500-$3,200.
How we do it
We install perforated aluminum foil across rafter bays or drape it over existing insulation, maintaining ventilation paths and avoiding compression that would reduce its reflective performance.
Radiant Barrier Roof Deck
Signs you need it
You’re re-roofing a Redwood home with dark shingles and want to reduce cooling load without adding attic insulation depth.
What it costs in Redwood
Radiant barrier applied directly to roof decking during re-roof or new construction runs $2,000-$4,500 depending on roof complexity.
How we do it
We apply a foil-faced sheathing or spray-applied radiant coating to the roof deck underside, integrated with ridge and soffit ventilation for proper airflow.
What Radiant Barrier Installation Costs in Redwood
| Item | Typical range in Redwood |
|---|---|
| Attic radiant barrier (foil, existing attic) | $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 insulation?
Yes, it complements rather than replaces insulation by addressing radiant heat transfer that fiberglass or cellulose cannot block. We air seal first, then install barrier, then verify with a blower-door test. Call (737) 337-8049 for a written price.
How much will my cooling bill drop?
Most Redwood homeowners see attic heat gain reductions of 20-35% after proper radiant barrier installation, though actual savings depend on duct location and existing insulation depth. We document before-and-after attic temperature readings on every job. Call (737) 337-8049 for a free estimate.
Insulation Removal & Replacement in Redwood
Decades of humid subtropical summers have degraded fiberglass batts in many Redwood attics, compressing them into mold-stained mats that perform at a fraction of their original R-value. After Winter Storm Uri, homeowners also discovered water-damaged insulation in walls and crawl spaces that had been hiding behind finishes for years. Insulation Removal & Replacement starts with safe extraction and ends with documented new installation.
Contaminated Insulation Removal
Signs you need it
Your attic insulation smells musty, shows dark staining, or tested positive for mold after a roof leak or plumbing failure.
What it costs in Redwood
Removal and disposal of contaminated attic insulation in a typical Redwood home runs $1,800-$3,500, with replacement quoted separately.
How we do it
We contain the work zone, use HEPA-filtered extraction equipment, bag all material on-site, and treat exposed framing with antimicrobial before any new insulation goes in.
Insulation Replacement
Signs you need it
Your insulation is compressed below joist tops, has settled unevenly, or was installed before 1990 and may contain vermiculite or other outdated materials.
What it costs in Redwood
New insulation replacement after removal, with air sealing, in a typical Redwood attic runs $3,500-$7,000 depending on material and depth.
How we do it
We air seal the attic floor completely, then install new Knauf or Owens Corning fiberglass, Rockwool mineral wool, or cellulose to the depth specified in your written scope.
What Insulation Removal & Replacement Costs in Redwood
| Item | Typical range in Redwood |
|---|---|
| Contaminated insulation removal only | $1,800-$3,500 |
| Insulation replacement with air sealing | $3,500-$7,000 |
| Full removal, treatment, and replacement | $5,000-$9,500 |
Is it cheaper to remove and replace or just add on top?
Adding over wet, moldy, or compressed insulation traps problems and reduces new material performance; removal is the only correct path when contamination or severe compression exists. We photograph the condition and show you before quoting. Call (737) 337-8049 for a written price.
How do I know if my old insulation is hazardous?
Vermiculite installed before 1990 may contain asbestos and requires lab testing; we do not disturb suspected material until results confirm safe handling. We arrange testing and include documentation in your project record. Call (737) 337-8049 for a free second opinion.
Attic Air Sealing in Redwood
Redwood’s older farmhouses and ranch homes were built with top plates, electrical penetrations, and can lights that leak conditioned air directly into vented attics. A blower-door test - a pressurization reading that shows, in one number, how much air your building envelope is losing - often reveals 3,000 to 5,000 CFM50 in these homes before any sealing begins. Attic Air Sealing is the foundation of every insulation job we perform; we will not blow insulation over an unsealed attic floor.
Top Plate & Penetration Sealing
Signs you need it
Your blower-door test shows excessive leakage at the attic floor, or you feel drafts at exterior wall outlets and switch plates during winter.
What it costs in Redwood
Sealing top plates, wire penetrations, and plumbing stacks in a typical Redwood attic runs $1,200-$2,500.
How we do it
We access the attic perimeter, apply fire-rated foam and caulk to all top plate gaps and penetrations, and verify with a mid-job blower-door test to confirm reduction.
Can Light & Duct Boot Sealing
Signs you need it
Your recessed can lights are not IC-rated, or you feel conditioned air blowing from duct boots into the attic space.
What it costs in Redwood
Sealing non-IC can lights with rated covers and mastic-sealing duct boots runs $800-$1,800 in most Redwood homes.
How we do it
We install pre-formed fire-rated covers over each can light, seal with fire-resistant caulk, and apply mastic - not duct tape - to all duct connections and boots.
What Attic Air Sealing Costs in Redwood
| Item | Typical range in Redwood |
|---|---|
| Top plate and penetration sealing | $1,200-$2,500 |
| Can light and duct boot sealing | $800-$1,800 |
| Full attic air sealing package | $2,000-$4,200 |
Can air sealing alone lower my energy bills?
Yes, many Redwood homeowners see 15-25% heating and cooling reductions after attic air sealing before any insulation is added, because the conditioned air they already pay for stops escaping. We document the blower-door reduction and include it in your project record. Call (737) 337-8049 for a written price.
Do you seal before or after insulation?
We seal first, always; blowing insulation over unsealed leaks buries them and makes future access nearly impossible. This is Haven Standard procedure, not optional. Call (737) 337-8049 for a free estimate.
Wall Insulation in Redwood
After Winter Storm Uri, insulation contractors across Gonzales County found homes with literally zero insulation in exterior walls - not compressed, not degraded, but absent entirely. Redwood’s older wood-frame construction, built when heating meant a fireplace and cooling meant a shade tree, often has empty stud cavities that hemorrhage energy in both directions. Wall Insulation retrofitted from the interior or exterior closes this gap without full demolition.
Drill & Fill Wall Insulation
Signs you need it
Your walls feel cold to the touch in winter, or a thermal imaging camera shows stud cavities reading the same as outdoor temperature.
What it costs in Redwood
Drilling and dense-packing cellulose or fiberglass into existing wall cavities runs $2,500-$5,500 for a typical Redwood home.
How we do it
We drill 2-inch holes at stud-bay spacing, blow material to calculated density, plug with matching wall material, and texture-blend the repair.
Injection Foam Wall Insulation
Signs you need it
Your walls have no insulation and you want an air barrier plus thermal resistance without removing drywall.
What it costs in Redwood
Injection foam installed through exterior siding or interior drywall in a typical Redwood home runs $3,500-$7,500.
How we do it
We access cavities through minimal exterior or interior ports, inject slow-rise foam to full fill, trim excess, and seal all access points.
What Wall Insulation Costs in Redwood
| Item | Typical range in Redwood |
|---|---|
| Drill and fill (cellulose or fiberglass) | $2,500-$5,500 |
| Injection foam wall insulation | $3,500-$7,500 |
| Exterior wall insulation with air sealing | $4,500-$9,000 |
Will drill and fill damage my walls?
We drill discrete holes, typically behind baseboards or in inconspicuous locations, and match texture and paint; most repairs are invisible after completion. We photograph every access point and include images in your Documented Photo Record. Call (737) 337-8049 for a written price.
Can you insulate walls without removing drywall?
Yes, both drill-and-fill and injection foam methods require only small access ports, not full drywall removal. We evaluate framing, electrical, and plumbing locations before quoting to ensure safe installation. Call (737) 337-8049 for a free second opinion.
Attic Cleaning & Rodent Proofing in Redwood
Redwood’s rural setting and mature tree canopy put homes in regular contact with squirrels, raccoons, and roof rats that exploit rotted fascia and unscreened vents to nest in attics. Once inside, they compress insulation, contaminate it with urine and feces, and create entry points for moisture and insects. Attic Cleaning & Rodent Proofing removes the contamination and seals the access so the problem does not repeat.
Attic Sanitizing & Decontamination
Signs you need it
You smell ammonia in the attic, see droppings concentrated around HVAC equipment, or find stained and compressed insulation near roof penetrations.
What it costs in Redwood
Removal of contaminated material, HEPA vacuuming, and antimicrobial treatment in a typical Redwood attic runs $2,000-$4,500.
How we do it
We remove all contaminated insulation, HEPA-vacuum every surface, apply enzyme-based sanitizer, and treat for mites and fleas before any new material goes in.
Rodent Proofing & Exclusion
Signs you need it
You hear scratching at dawn or dusk, find gnawed fascia boards, or see daylight through gaps at roof junctions and vent screens.
What it costs in Redwood
Comprehensive rodent exclusion with metal flashing, hardware cloth, and sealant for a typical Redwood home runs $1,500-$3,500.
How we do it
We inspect every roof penetration, vent, and soffit joint, install metal barriers that rodents cannot chew, and guarantee the work under our 365-Day Done Right Promise.
What Attic Cleaning & Rodent Proofing Costs in Redwood
| Item | Typical range in Redwood |
|---|---|
| Attic sanitizing and decontamination | $2,000-$4,500 |
| Rodent proofing and exclusion | $1,500-$3,500 |
| Full attic restoration with new insulation | $5,500-$11,000 |
How do I know if rodents are in my attic?
Listen for scratching at dawn and dusk, inspect insulation for tunneling and compression, and check soffits and fascia for gnaw marks and staining. We include a full inspection photo set with every evaluation. Call (737) 337-8049 for a written price.
Will they come back after you seal?
Not through the same openings; our exclusion work uses rodent-proof materials and is backed by the 365-Day Done Right Promise. We document every sealed point with photos. Call (737) 337-8049 for a free estimate.
Home Energy Audit in Redwood
A home energy audit in Redwood identifies where conditioned air escapes and where unconditioned air enters, prioritizing repairs by cost-effectiveness in a climate with both extreme summer heat and occasional severe freeze events. The audit produces a written scope with blower-door numbers, thermal images, and prioritized recommendations that let homeowners phase work logically. Home Energy Audit is the starting point for every major envelope project we undertake.
Blower Door Test
Signs you need it
Your energy bills are high despite recent HVAC service, or rooms have uneven temperatures and you suspect envelope leakage.
What it costs in Redwood
A standalone blower-door test with written report for a typical Redwood 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 - the single number that quantifies total envelope leakage.
Thermal Imaging Inspection
Signs you need it
You suspect missing wall insulation, want to locate attic air leaks, or need documentation of envelope defects for repair prioritization.
What it costs in Redwood
Thermal imaging included with a full energy audit runs $450-$850; standalone imaging starts at $300.
How we do it
We scan all envelope surfaces with an infrared camera during blower-door depressurization, capturing images that reveal insulation gaps, moisture intrusion, and air leakage paths.
What Home Energy Audit Costs in Redwood
| Item | Typical range in Redwood |
|---|---|
| Blower-door test with written report | $350-$650 |
| Full energy audit with thermal imaging | $450-$850 |
| Audit with prioritized repair scope | $600-$1,200 |
What does a home energy audit include?
A blower-door test, thermal imaging, insulation inspection, and written scope with prioritized recommendations and cost estimates. You receive all images, readings, and the written report before any work is discussed. Call (737) 337-8049 to schedule.
Can I use audit results to phase repairs over time?
Yes, the written scope ranks repairs by impact and cost so you can address critical air sealing first and defer insulation upgrades if budget requires. We quote each phase separately with no pressure to commit to all at once. Call (737) 337-8049 for a written price.
Brands We Service in Redwood
We install Owens Corning, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber products - no proprietary lock-in means we specify material for your condition, not our inventory. Our crews carry common stock for Redwood-area jobs, and most materials arrive next-day if not on the truck. See our brands for full specifications.
Pricing for Insulation in Redwood, TX
| Service | Typical range in Redwood |
|---|---|
| Crawl space vapor barrier | $1,200-$2,800 |
| Full crawl space encapsulation | $4,500-$8,500 |
| Attic radiant barrier | $1,500-$3,200 |
| Radiant barrier roof deck | $2,000-$4,500 |
| Contaminated insulation removal | $1,800-$3,500 |
| Insulation replacement with air sealing | $3,500-$7,000 |
| Attic air sealing (full package) | $2,000-$4,200 |
| Drill and fill wall insulation | $2,500-$5,500 |
| Injection foam wall insulation | $3,500-$7,500 |
| Attic sanitizing and decontamination | $2,000-$4,500 |
| Rodent proofing and exclusion | $1,500-$3,500 |
| Home energy audit (full) | $450-$850 |
Prices in Redwood run toward the higher end when crawl spaces require extensive drainage prep, when wall cavities contain obsolete wiring that must be routed around, or when attic access is limited by low headroom. Under Haven Standard Clause 1, every job begins with a flat written price, a written scope, and a written warranty before anyone lifts a tool.
Neighborhoods We Serve in Redwood
We work throughout Redwood and surrounding Gonzales County communities, from established farmsteads along the Guadalupe River valley to newer ranch-style homes on acreage. Most Redwood-area appointments are scheduled within 48 hours, with emergency response available for post-storm envelope damage.
- Redwood proper and Old Redwood Road corridor
- Guadalupe River valley farmsteads
- County Road 143 and surrounding acreage
- Nearby unincorporated Gonzales County communities
Service Area - Cities Near Redwood
Envelope Insulation Co. serves Redwood from our Dallas-Fort Worth dispatch office, with crews working throughout South-Central Texas. We also take appointments in San Marcos, TX, Kyle, TX, Lockhart, TX, and Buda, TX. Travel time from these cities to Redwood varies; call for scheduling specifics.
Serving Redwood, TX - Our Local Coverage Area
We’re based in the Redwood 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 Redwood
Redwood is unincorporated Gonzales County, so no city permit is required for most insulation retrofits; county building codes apply to new construction and substantial remodels. We verify requirements before starting and include any needed documentation in your project record.
Most Redwood homeowners receive a scheduled appointment within 48 hours, and emergency calls for post-storm envelope damage are answered by a live person 24/7. You’ll get a text when your technician is en route with a named arrival window.
We regularly serve unincorporated Gonzales County and schedule travel into our flat written price; there are no mileage surprise charges. Call (737) 337-8049 to confirm coverage for your specific location and receive a written estimate.
Ready to fix your home’s envelope? Call (737) 337-8049 for a free estimate with a written price before any work starts. We’re Envelope Insulation Co., independently owned and operated under The Haven Standard since 2016, and we’ve sealed and insulated more than 9,000 homes with documented records on every one. Wes Okafor leads our team, and a live person answers calls 24/7.
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 60-minute.
- 4You approve before work beginsNothing starts until you say go.
What Redwood Customers Say
"They air-sealed the attic floor before insulating and showed me the blower-door number before and after. The upstairs is finally the same temperature as downstairs."
- Marisol D."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."The winter gas bill dropped by about a third. They had estimated a quarter, so they under-promised."
- Genevieve R.