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Odessa Crawl Space crew at work

Odessa Crawl Space

  • Thousands of satisfied customers
  • Local and family owned
  • +15 years in business
  • Licensed and insured
  • Always FREE Quotes
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Trusted Crawl Space Encapsulation in Welch, TX

For 15+ years, we’ve helped West Texas homeowners stop moisture, odors, and sagging floors at the source. As a local, family‑owned team, we’re fully insured and trained to install code‑compliant systems that last. From vapor barriers and drainage to dehumidifiers and insulation, we deliver safe, clean, sealed crawl spaces.

If your pier‑and‑beam home shows musty smells, high humidity, or mold, we can help. Our crews follow ASTM and IRC standards and use professional‑grade materials - so you get durable results, lower utility bills, and healthier air. We’re the local pros for Crawl Space Encapsulation Welch TX homeowners trust. Call us today for a free, no‑pressure estimate.

Expert Crawl Space Services for Dry, Healthy Homes in Welch

We focus on long‑term moisture control and structural protection. Our installations follow best practices and meet building codes, ensuring a clean, sealed crawl space that stands up to West Texas conditions.

Crawl Space Repair

Uneven floors, wood rot, or soft spots signal structural issues beneath your home. We inspect joists, beams, and piers with a laser level and borescope, then repair damaged members and add support jacks if needed. Our team addresses the cause - water, humidity, or pests - before we fix the symptoms. Expect straight floors, improved stability, and a safer home.

Learn more about our Crawl Space Repair services.

Crawl Space Vapor Barrier Installation

Moist soil drives humidity, odors, and mold into your living space. We install a 12–20 mil reinforced polyethylene liner (ASTM E1745 Class I) with dimpled drainage matting where needed. Seams are overlapped 6–12 inches and sealed with butyl tape and mastic, then terminated on the wall with bars and fasteners. The result is a sealed crawl space that reduces moisture, improves air quality, and protects insulation and framing.

Learn more about our Crawl Space Vapor Barrier Installation services.

Crawl Space Dehumidifier Installation

Even sealed crawl spaces need controlled humidity. We size a high‑capacity unit (like Santa Fe Compact70 or Aprilaire E100) based on cubic footage and leakage, then install a dedicated condensate drain/pump and, if required, a new electrical circuit by a Texas‑licensed electrician. Maintaining 50–60% RH helps prevent mold, odors, and wood decay while keeping your home more comfortable.

Learn more about our Crawl Space Dehumidifier Installation services.

Crawl Space Waterproofing

Standing water demands drainage before encapsulation. We install perimeter French drains with perforated pipe to a sump basin with check valve, then test the pump to verify discharge. This keeps bulk water out so the vapor barrier and dehumidifier can do their job. Proper waterproofing reduces flooding risk and protects your foundation and indoor air.

Learn more about our Crawl Space Waterproofing services.

Crawl Space Insulation Installation

We insulate crawl space walls with rigid foam (EPS/XPS, borate‑treated where applicable) or closed‑cell spray foam, following IRC R316.5.4 ignition‑barrier rules. We maintain a 3–6 inch termite inspection gap at the top of the wall per Texas guidance. Proper insulation lowers energy bills, reduces drafts, and pairs well with a sealed crawl space for a more comfortable home.

Learn more about our Crawl Space Insulation Installation services.

Other Services We Offer

Get a fast, free crawl space estimate

Same‑day inspections in Dawson County. We’ll assess moisture, drainage, and humidity - and give you a clear, written quote on the spot.

432-999-5660

Why Homeowners Choose Us for Crawl Space Encapsulation in Welch, TX

Odessa Crawl Space brings 15+ years of local expertise and thousands of successful projects across the South Plains and Permian Basin. We combine building‑science training with safe, clean work practices to deliver airtight, durable systems. From ASTM‑rated liners to code‑compliant unvented crawl spaces, we do it right the first time. When you need Crawl Space Encapsulation Welch TX homeowners recommend, we’re ready to help.

Certified Expertise and Code Compliance

Our team is trained in IICRC WRT/AMRT and NORMI practices for moisture and mold, plus BPI Building Analyst for air‑sealing and energy efficiency. For spray foam projects, we follow SPFA guidelines and the IRC R316.5.4 ignition‑barrier requirement. Every encapsulation is designed to comply with IRC R408.3 for unvented crawl spaces, including options for mechanical exhaust, small supply air, or dehumidification.

We document materials and methods - ASTM E1745 Class I vapor retarder, seam details, termination bars, and dehumidifier sizing - so you have a clear record for insurance or real estate transactions. This documentation often speeds closings and reduces re‑inspection delays.

Safety, Licensing, and Warranty

We follow OSHA PPE and confined‑space entry protocols, using respirators, gloves, Tyvek, and negative air machines as needed. If mold over 25 sq ft is present, we perform work under TDLR mold remediation rules. Electrical circuits for dehumidifiers are installed by a Texas‑licensed electrician, and supply‑air adjustments are coordinated with a licensed HVAC contractor.

You get a written warranty on our encapsulation system and components, along with a simple maintenance plan that includes annual RH checks. We can add remote humidity monitoring for continuous peace of mind.

Proven Materials and Installation Standards

We use professional‑grade products: 12–20 mil reinforced polyethylene liners, butyl seam tape and mastic, termination bars and fasteners, dimpled drainage matting, perforated French drain pipe, and sump basins with check valves. For insulation, we recommend rigid foam (EPS/XPS, borate‑treated where appropriate) or closed‑cell spray foam - always maintaining a 3–6 inch termite inspection gap at the top of the wall.

Dehumidifiers are matched to crawl volume and leakage. Popular models include Santa Fe Compact70/Advance90 and Aprilaire E100/E130, installed with a reliable condensate pump and dedicated drain line. We verify performance with hygrometers and provide target RH settings (50–60%).

Local Knowledge and Case Results

West Texas wind, dust, and wide temperature swings challenge crawl spaces. In 2024, we encapsulated a 1,400 sq ft pier‑and‑beam home near 79377 with seasonal water entry. We installed a perimeter French drain to a sump, a Class I 20‑mil liner with 8‑inch wall termination, and an Aprilaire E100 set to 55% RH. Post‑install readings dropped from 78% to 52% RH within 48 hours.

We also understand Dawson County needs - like coordinating permits in nearby Lamesa when required - and how to protect homes on the Llano Estacado plateau. Expect straight talk, transparent pricing, and results you can measure.

Experience-backed work, documented to code

Get a proposal that spells out materials, methods, and IRC R408.3 compliance - plus a solid warranty. Request your free inspection today.

432-999-5660

Crawl Space Services Across the Permian Basin and South Plains

Odessa Crawl Space proudly serves Midland‑Odessa and the surrounding Permian Basin area, plus communities across the South Plains. If you’re within about 30 miles of a major hub like Midland, Odessa, or Lamesa, we’ve likely worked in your neighborhood. We’re local, fast to respond, and equipped for dusty, semi‑arid West Texas conditions.

Serving All Neighborhoods in Welch

We help homeowners throughout Welch and Dawson County, including the 79377 zip code. Our team understands pier‑and‑beam construction common to the area, and we’re familiar with nearby permitting through the City of Lamesa when electrical hookups are needed. From sealed crawl spaces to drainage and dehumidifiers, we tailor each system to the South Plains climate.

Whether you’re near farm and ranch properties or in town, we provide Crawl Space Encapsulation Welch TX families count on - built for wind, dust, and big temperature swings.

Other locations we serve near Welch

Yes - we serve your neighborhood

From Welch to Midland‑Odessa, our crews provide fast local response and code‑compliant installations. Tell us about your crawl space and get a free quote.

432-999-5660

Frequently Asked Questions

What is crawl space encapsulation?
Encapsulation seals the ground and walls with a reinforced vapor barrier, air‑seals vents and penetrations, adds drainage as needed, and controls humidity with a dehumidifier or conditioned air. In Welch and Dawson County, this approach blocks soil moisture, reduces odors and mold risk, and helps stabilize floors and utilities. When done to IRC R408.3 and ASTM E1745 standards, a sealed crawl space improves air quality and energy efficiency year‑round.
How much does crawl space encapsulation cost in Texas?
Costs vary by size, access, drainage needs, and liner thickness. In West Texas, many projects for 1,000–1,500 sq ft homes fall between $5,500 and $12,000, including a Class I liner, wall termination, and a high‑capacity dehumidifier. Additions like French drains, a sump pump, or heavy mold remediation will increase price. We provide free crawl space inspections in 79377 and a written, line‑item quote.
Do I need a dehumidifier after encapsulation?
Yes, in most Texas homes. Even with a vapor barrier, ambient humidity and minor air leakage can elevate RH. We aim for 50–60% RH using a right‑sized crawl space dehumidifier (e.g., Santa Fe or Aprilaire) with dedicated drainage. In some cases, small supply air per IRC R408.3 is an option, but we verify results with hygrometers and can add remote monitoring for peace of mind.
Signs your Welch home needs crawl space encapsulation
Common indicators include musty odors, cupped hardwoods, sweating ductwork, visible mold on joists, high indoor humidity, cold floors in winter, and recurring puddles after rain. In the South Plains wind and dust, you might also notice insulation falling or pests. If you see any of these issues in Welch, TX, schedule an inspection so we can check moisture, structure, and ventilation.
Is crawl space encapsulation worth it in West Texas?
Yes. Encapsulation reduces moisture‑related damage, helps control allergens and odors, and can lower energy bills by insulating walls and air‑sealing leaks. In the semi‑arid but variable West Texas climate, keeping the crawl space sealed and dehumidified also protects plumbing, ductwork, and framing - adding value for resale and reducing surprise repairs.
Do you offer free inspections in Welch 79377?
We do. Our team provides a free crawl space inspection in Welch 79377, including moisture meter readings, photos, and a written plan. You’ll know whether you need drainage, a vapor barrier, insulation, vent sealing, or a dehumidifier - and we’ll include options that fit your budget and timeline.
Will Dawson County or the City of Lamesa require a permit for encapsulation or electrical hookups for dehumidifiers?
Encapsulation itself may not require a building permit in some county areas, but electrical work typically does when adding a dedicated circuit. For homes within Lamesa city limits, permits and inspections are often required. We coordinate with local officials and use a Texas‑licensed electrician to ensure the installation meets code and passes inspection.
Which dehumidifier models work best for large West Texas crawl spaces and why?
We commonly install Santa Fe Compact70/Advance90 and Aprilaire E100/E130. They’re efficient, built for crawl spaces, and reliable in dusty environments when properly filtered. We size the unit to your crawl’s cubic footage and leakage, set the target RH to ~55%, and include a condensate pump with a dedicated drain line for low‑maintenance operation.
How do you maintain the required termite inspection gap when insulating crawl space walls in Texas?
We leave a 3–6 inch inspection gap at the top of the foundation wall. Rigid foam or spray foam stops below that line, and the vapor barrier terminates under a bar without blocking the gap. This allows pest professionals to inspect the sill plate and top of the wall for termites while still delivering a sealed, insulated crawl space.
How do you document IRC R408.3 compliance for an unvented, sealed crawl space during real estate transactions?
We provide a packet with the liner spec (ASTM E1745 Class I), seam and termination details, dehumidifier model and settings, drainage components, and photos. We also include a statement of compliance with IRC R408.3 (unvented crawl space), humidity readings before/after, and maintenance guidance. This documentation helps satisfy appraisers, inspectors, and buyers quickly.

Still comparing options? Let’s talk.

Get expert answers and a clear plan - no pressure, no jargon. We’ll evaluate your crawl space and provide a detailed quote today.

432-999-5660