Crawlspace Encapsulation in Shreveport, LA
Vapor barriers, moisture control, insulation, air sealing, and dehumidifiers — done right by the team you already trust for attic insulation. Serving Shreveport, Bossier City, Blanchard, Benton, and Haughton.
A specialized branch of D & M
Crawlspace services by D & M Insulation
Crawlspace services are a specialized branch of D & M Insulation Solutions, focused on moisture control, encapsulation, and under-home air quality. Same company. Same logo. Same guarantee — now extended below your floors.
Just like we improve energy efficiency in your attic insulation, we now improve the health and performance of your crawlspace. The two systems work together — fix one without the other and you’re leaving comfort and savings on the table.
What we do
Complete crawlspace services
Every crawlspace is different. We tailor the system to your home — whether that’s a full encapsulation or a targeted moisture fix.
Crawlspace Division
Crawlspace Encapsulation
Crawlspace encapsulation seals your home’s underbelly from the ground up — walls, floor, support posts, and vents — using a heavy-duty reinforced liner. In humid Shreveport summers, an open crawlspace acts like a sponge, pulling damp air, mold spores, and musty odors straight up into your living space. Our crawlspace encapsulation in Shreveport stops that cycle. We clean and prep the area, install a 12–20 mil vapor barrier, mechanically fasten it to foundation walls, seal seams and pipe penetrations, and finish with conditioning so the space stays dry year-round. Homeowners across Bossier City, Blanchard, Benton, and Haughton tell us their floors feel warmer, the AC runs less, and that “old house smell” is finally gone. If you’ve been searching for crawlspace repair near me, this is the foundation of every long-term fix.
- Call for free inspection
Crawlspace Division
Vapor Barrier Installation
A vapor barrier is the workhorse of any healthy crawlspace. We use thick, puncture-resistant reinforced liners — not the flimsy plastic big-box stores sell — and overlap and tape every seam so moisture from the ground can’t migrate up into your floor system. Our vapor barrier installation in Shreveport is engineered for our climate: high humidity, clay soils, and seasonal flooding. We mechanically fasten the liner to foundation walls, terminate it cleanly around piers, and seal pipe penetrations so nothing gets bypassed. Whether you need a full encapsulation or a budget-friendly upgrade for an existing crawl, a properly installed vapor barrier is the single biggest moisture defense you can add. We service Shreveport, Bossier City, Benton, Blanchard, and Haughton with same-week appointments.
- Call for free inspection
Crawlspace Division
Crawlspace Moisture Control
Moisture is the root cause of nearly every crawlspace problem — mold, wood rot, sagging floors, musty smells, and high energy bills. We approach it as a system. First we diagnose: standing water, poor drainage, broken vents, plumbing leaks, or condensation on ductwork. Then we fix the source with grading, drainage tie-ins, sump pumps where needed, sealed vents, and pipe insulation. Finally we condition the space with a vapor barrier and dehumidifier. Our crawlspace moisture control plans are tailored to each home, because a 1950s pier-and-beam in Shreveport doesn’t have the same issues as a newer build in Benton. If you smell musty air, see mold on joists, or feel cold spots above the crawl, those are early warnings — and they only get more expensive to ignore.
- Call for free inspection
Crawlspace Division
Crawlspace Air Sealing
Air sealing is the step most contractors skip — and the reason their work fails. Up to 50% of the air you breathe upstairs originated in the crawlspace, thanks to the stack effect. We seal rim joists, sill plates, plumbing and HVAC penetrations, vent openings (when converting to a sealed crawl), and any gaps between the foundation and framing. We use closed-cell spray foam, mastic, and high-quality sealants rated for below-grade use. The result: less dust, fewer allergens, more stable indoor humidity, and a real reduction in your AC runtime. Pair our crawlspace air sealing with vapor barrier installation in Shreveport for the highest-performing system we offer.
- Call for free inspection
Crawlspace Dehumidifier Installation
In a Louisiana climate, sealing the crawlspace is only half the job — you also have to manage the humidity inside it. We install commercial-grade crawlspace dehumidifiers that automatically maintain 50–55% relative humidity year-round. They drain to a condensate line or pump, run quietly, and use a fraction of the energy your AC would burn trying to do the same job. Most homeowners see noticeable comfort improvements within a week and stop chasing musty smells for good. Every dehumidifier install includes proper sizing for your square footage, condensate routing, and a humidity monitor so you can verify it’s working. It’s the finishing touch that makes encapsulation a true long-term investment.
- Call for free inspection
Local crew. Real warranties. Honest quotes.
We’re the same D & M Insulation crew Shreveport homeowners have trusted for years for attic work — now with a dedicated team for crawlspace repair, encapsulation, and moisture control across Northwest Louisiana.
- Free, no-pressure inspections
- Written quotes — no surprises
- 12–20 mil reinforced vapor barriers
- Workmanship guarantee on every job
- Licensed, insured, and local
- Same-week scheduling
Call or text for a free crawlspace inspection
Serving Shreveport, Bossier City, Blanchard, Benton, Haughton. We’ll come out, take a look, and give you a written quote — no pressure.
Crawlspace questions, answered
What is crawlspace encapsulation?
Crawlspace encapsulation is the process of fully sealing the area under your home with a thick reinforced vapor barrier on the floor, walls, and support posts, then conditioning the space with a dehumidifier or sealed vents. It stops ground moisture, mold, and outside humidity from reaching your living space — and it’s the most effective long-term fix for damp, musty, or cold crawlspaces in the Shreveport area.
How much does crawlspace encapsulation cost in Shreveport?
Most full encapsulation projects in Shreveport, Bossier City, and surrounding areas range from $5,000 to $15,000 depending on square footage, accessibility, drainage needs, and whether a dehumidifier is included. A simple vapor barrier upgrade can start much lower. We give free, no-pressure inspections with a written quote so you know exactly what you’re paying for.
Do I really need a vapor barrier?
If your crawlspace has exposed dirt or gravel, yes. Louisiana soil holds a lot of moisture, and without a vapor barrier that moisture evaporates straight into your floor joists, insulation, and ductwork. A properly installed vapor barrier is the single biggest improvement you can make to a crawlspace, and it’s the foundation of every other repair we do.
Will encapsulation help with moisture, allergies, and energy bills?
Yes — and noticeably. Customers report drier air upstairs, fewer allergy and asthma triggers, warmer floors in winter, and AC bills that drop 10–20% in summer. Because so much of the air you breathe upstairs comes from the crawlspace, fixing it fixes a lot of problems at once.
Free Inspection
Looking up too? See our attic insulation services.
Bundle attic and crawlspace work for the biggest comfort and energy improvement.