Honest Inspections
We document what we see and explain which conditions need attention.
I’m Nathan Johnson, owner of JHS Crawlspace Specialist. I inspect your crawl space, show you what I find, and explain the repair or moisture-control work your home needs.
Serving Spartanburg, Greenville, and surrounding areas.
Musty smell or moisture problems? Call today.
Your inspection time is confirmed when you contact JHS
Local crawlspace work, clear photos from under your home, honest recommendations, and no scare tactics.
Clear information, practical solutions, and careful work from a local crawl space team.
We document what we see and explain which conditions need attention.
You get room to ask questions and make the right decision for your home.
Your home is handled by a professional team that takes the work seriously.
Local homeowners recommend JHS for clear communication and dependable results.
We understand Upstate South Carolina homes, humidity, and crawl space conditions.
Recommendations address the source of moisture, not just the visible symptoms.
If your home smells musty, the floors feel damp, or the crawlspace liner is torn or missing, start with an inspection. We identify the moisture source, show you photos, and recommend only the work your home needs.
Our complete crawl space repair service for Spartanburg County — encapsulation, sealed vapor barriers, dehumidifiers, moisture control, waterproofing, sump pumps, drainage, vent sealing and odor removal. If your crawl space is wet, musty, or damaged, this is where to start.
Explore Crawl Space RepairSeal the ground, walls, vents, and air leaks so humid Upstate air stops feeding mold, odors, and wood moisture.
Learn moreInstall a clean, sealed liner over the soil to block ground moisture before it reaches your floor system.
Learn moreCrawlspace-rated dehumidifiers sized for the space, drained correctly, and set to control humidity year-round.
Learn moreFind the source of damp, musty air and treat the crawlspace after the moisture problem is corrected.
Learn moreClose off outdoor air infiltration for stable humidity year-round.
Learn moreWeather-tight access doors that help reduce outdoor moisture and pest entry at the access opening.
Learn moreRecurring semi-annual inspections and moisture checks to protect your crawlspace — $139 per visit.
Learn moreInterior trench drains, sump pumps and yard drainage that stop water intrusion, flooding and standing water.
Learn moreWondering what it costs? Read our guide to crawlspace encapsulation cost in Spartanburg, SC.
Homeowners across Spartanburg, Greenville and the Upstate find us by searching for help nearby. Start with the service that matches what your crawl space needs.
Wood rot, damp or fallen insulation, a torn vapor barrier or a musty smell? Start here for crawl space repair across the Upstate.
Crawl Space Repair Near Me →Find out whether sealing your crawl space with a liner, vent sealing and humidity control fits your home — or whether a smaller fix will do.
Crawl Space Encapsulation Near Me →Standing water or damp soil after rain? Find where the water is entering and whether drainage or a sump pump is needed.
Crawl Space Waterproofing Near Me →When you schedule an inspection with JHS, I, Nathan Johnson, the owner of JHS Crawlspace Specialist, will be the one who comes to your home.
I am not a salesman, and I do not send a salesperson to inspect your crawlspace.
My job is to go under your house, figure out what is actually happening, show you what I find, and tell you what I believe your crawlspace actually needs.
“If you already knew which solution your crawlspace needed, you wouldn’t need an expert. My job is to inspect it, explain what I found, and recommend what actually makes sense for your home.”
— Nathan Johnson, Owner
No scare tactics. No high-pressure sales presentation. No salesperson coming back later to close the deal.
You deal directly with me, Nathan Johnson, from the inspection forward.
Know what to expect before anyone enters your crawl space.
Choose a convenient time to tell us what you have noticed.
We inspect moisture, drainage, insulation, vents, and visible damage.
I show you the findings and photos, explain what is causing the problem, and recommend exactly what your crawlspace needs.
Our team completes the agreed work with care and attention to detail.
Before-and-after transformations from homes across the Upstate.
Meet Musty Mike, our fictional crawlspace tenant. He likes damp crawlspaces. We help homeowners find out what’s actually causing the moisture.
Musty smells deserve a real answer. We’ll inspect your crawlspace, show you what we find, and recommend only what your home needs. No pressure. No scare tactics.
Honest work, clear communication, and results homeowners actually notice.
Clear warranty terms and a long-term commitment to the quality of our work.
Warranty coverage depends on the service and materials selected. Before work begins, we explain the applicable workmanship and manufacturer warranty details so you know what is covered and how to care for the completed system.
Simple answers for Spartanburg and Upstate homeowners dealing with crawlspace moisture.
Cost depends on the crawlspace size, moisture level, access, drainage needs, liner type, and whether a dehumidifier is needed. JHS gives a free inspection and a clear recommendation before quoting the work.
Many crawlspace encapsulation jobs take one to three days. Larger crawlspaces, drainage work, cleanup, or repairs can add time, and JHS explains the schedule before the job starts.
No. Some crawlspaces only need a sealed vapor barrier, vent sealing, or drainage correction. A dehumidifier is recommended when humidity still needs active control after the moisture sources are addressed.
Musty smells, wet insulation, standing water, condensation, soft floors, high indoor humidity, pests, mold concerns, or a torn vapor barrier are signs the crawlspace should be checked.
Yes. JHS serves Spartanburg, Greenville, Greer, Boiling Springs, Inman, Duncan, Lyman, Moore, Simpsonville, Taylors, Mauldin, Travelers Rest, Fountain Inn, and nearby Upstate communities.
JHS is a local Spartanburg company. We give free inspections, show you what we find, and make clear, no-fluff recommendations for fixing crawlspace moisture problems.
Book your free crawlspace inspection today — no pressure, no scare tactics.
JHS Crawlspace Specialist seals and protects crawl spaces throughout Greenville County. Explore our local encapsulation and moisture-control work in these communities: