
Coastal moisture is working under your Lompoc home whether you can see it or not. Professional vapor barrier installation stops it at the source - before it reaches your floors and framing.

Vapor barrier installation in Lompoc places heavy plastic sheeting across your crawl space floor and up the foundation walls, blocking ground moisture from rising into your home's structure - most standard jobs are completed in a single day with no disruption inside the house. The crew works entirely in the space below your floor, sealing every seam and securing edges so moisture has no gap to sneak through.
Lompoc's proximity to the Pacific Ocean means marine fog moves through the Santa Ynez Valley most mornings and evenings. That persistent dampness raises soil moisture levels under homes even during long dry stretches. Many Lompoc homes built between the 1950s and 1970s were never fitted with a vapor barrier, or had thin plastic installed that has since torn and shifted over decades of use.
If the moisture concern extends beyond the crawl space floor, our crawl space vapor barrier service covers wall sealing and full encapsulation options for homes where standard ground coverage is not enough.
If your home has a damp, earthy odor that does not go away after cleaning or airing out, it is often coming from the crawl space below. In Lompoc, where marine fog keeps outdoor humidity elevated for much of the year, that smell is a common early sign that moisture is building up under your floors.
If certain spots on your floor feel noticeably colder than the rest of the room in winter, or if the floor has any give or bounce when you walk on it, moisture may be weakening the wood underneath. Lompoc's older homes - many built in the 1950s and 1960s - often have wood subfloors that have been exposed to crawl space moisture for decades.
Water stains, bubbling paint, or a white chalky residue on concrete near the base of interior walls are signs that moisture is moving through your foundation. This is especially common in Lompoc homes that sit on older concrete foundations without modern waterproofing measures.
Termites, wood-boring beetles, and rodents are drawn to damp wood and soil. If you have had pest issues in your crawl space or noticed signs of insect activity near your foundation, moisture is often a contributing factor - and addressing it makes the space less hospitable to pests going forward.
We install heavy-duty plastic sheeting across your crawl space floor with overlapping seams that are taped - not just laid on top of each other. Seams that are simply overlapped allow moisture to slip right through the gap, which is one of the most common ways a cheap installation fails within a few years. We also run the sheeting up the foundation walls and secure it there, because moisture does not only come from directly below - it can work in from the sides as well.
If old, deteriorated material is already present, we remove it before installing new sheeting so nothing is trapped underneath. We also work alongside our attic air sealing service for homeowners who want to address moisture and air leakage throughout the home in a coordinated approach. The Building Science Corporation outlines why proper seam sealing and wall coverage are what separate a lasting vapor barrier installation from one that fails early.
Heavy-duty sheeting laid across the full ground area with overlapping, taped seams - the foundation of any quality vapor barrier job.
Sheeting secured up the walls of the crawl space, not just the floor, to block moisture from working in from the sides.
We remove deteriorated plastic before installing new sheeting - so the old failure is not just covered over.
For homes with ongoing moisture problems, full encapsulation adds wall sealing and optional dehumidification beyond a standard barrier.
Lompoc's position in the Santa Ynez Valley, just a few miles from the Pacific coast, means marine fog is a reliable visitor through much of the year - particularly during the late spring and summer months. That fog keeps soil moisture elevated around and under homes even when it has not rained for weeks. Pair that with Lompoc's older housing stock - a large share of homes here were built in the 1950s through 1970s during the Vandenberg Space Force Base expansion, when crawl space moisture protection was rarely prioritized - and you have a city where many homes have been accumulating hidden moisture damage for decades without the owners knowing.
We work throughout the region, including for homeowners in Santa Maria and Solvang, where valley and coastal conditions create the same crawl space moisture challenges that are common across Santa Barbara County's older residential neighborhoods.
Reach out by phone or form and we respond within 1 business day. We ask about your home's age and whether you have noticed any odors or moisture signs, then schedule a free crawl space inspection.
A contractor accesses your crawl space - usually through a floor hatch or exterior vent - and spends 20 to 45 minutes assessing the space. After the inspection, you get a written estimate with a clear breakdown of what is included and what it costs.
The crew arrives with rolls of heavy sheeting and works entirely in the crawl space. They lay the material across the ground, overlap and tape every seam, and run it up the foundation walls. Most standard Lompoc homes are finished in a single day.
When the job is done, we show you the finished crawl space or provide photos, explain what was installed, and answer any questions. The access hatch or vents are closed and secured before we leave, and the work area is left clean.
We respond within 1 business day. Free inspection with every estimate - no pressure to move forward until you are ready.
(805) 291-8906From Lompoc to Paso Robles, Goleta, and Carpinteria, we work throughout the Central Coast. That range means we have seen the full variety of crawl space conditions across Santa Barbara County - not just one soil type or home style.
The single biggest difference between a vapor barrier that lasts and one that fails in a few years is whether the seams are taped. We tape every overlap and run the sheeting up the walls - and we will show you the result before we leave.
Covering deteriorated plastic with new plastic just traps the old failure underneath. We pull out old, torn, or degraded material before installation begins - so the job is actually done rather than just appearing done.
Every contractor on our team holds a valid California Contractors State License Board license. You can look up our license number at the CSLB website in seconds - that verification protects you and means we carry insurance on every job.
Crawl space work is invisible from inside your home, which makes it easy for shortcuts to go unnoticed for years. We document the finished installation with photos so you have a clear record for your own files - and for any future inspector or buyer who wants to know what was done.
Address air leakage in the attic alongside your vapor barrier work for a complete moisture and energy strategy.
Learn moreExtended crawl space protection including foundation wall sealing and encapsulation options for high-moisture situations.
Learn moreEvery month without a vapor barrier is another month of ground moisture working into your floors and framing - call today to schedule your free inspection.