CRAWLSPACE REPAIR
A Musty Smell in Your House Usually Starts Below It
That smell means moisture has found a way into your home. Our Certified Field Inspector will identify the source of water intrusion in your basement or crawlspace and seal it.
20-Year Labor Guarantee
Lifetime Warranties
Zero-Interest Financing
Military & Senior Discount
Free Inspections
Solutions for a Musty Smell in Your House
Full Crawlspace Encapsulation
Full crawlspace encapsulation converts your crawlspace from an open, vented environment into a sealed, conditioned one. We line the floor and walls with a heavy-duty vapor barrier, seal all existing vents, and close off entry points for outside air, moisture, and pests. The result is a crawlspace that no longer pulls humid outdoor air in, grows mold on structural wood, or lets conditioned air escape through the floor above it. Most homeowners notice the difference in indoor air quality and energy bills within the first month.
Seals walls, floor, and all existing vents
Eliminates ground moisture infiltration and outdoor air intrusion
Addresses musty odors, high humidity, and pest entry points
Lifetime warranties available on qualifying vapor barrier products
Vapor Barrier
A vapor barrier is a polyethylene liner installed across the crawlspace floor to block ground moisture from evaporating upward into the structure above. It’s a targeted solution for crawlspaces where the primary issue is soil moisture rather than air intrusion through the vents. In certain homes where a full encapsulation isn’t required, a properly installed vapor barrier can significantly reduce humidity levels and slow the deterioration of wood and insulation. We assess the best solution for your crawlspace during the inspection and then make a recommendation.
Blocks ground moisture from entering the crawlspace environment
Appropriate for crawlspaces with moderate moisture concerns
infiltration and outdoor air intrusion
Less extensive than full encapsulation but meaningfully more protective than an exposed crawlspace floor
Crawlspace Drainage
& Sump Pump Installation
Some crawlspaces like this deal with standing water from groundwater intrusion, poor exterior drainage, or water that migrates in from the surrounding soil after heavy rain. A vapor barrier or encapsulation alone won’t fix standing water; the water needs somewhere to go first.
We install interior crawlspace drainage systems and sump pumps to collect and remove water before it can damage structural wood, insulation, or your vapor barrier. In many cases, crawlspace drainage and encapsulation are done together as part of a complete moisture control solution.
Removes standing or pooling water from the crawlspace floor
Interior drainage channel routes water to a collection basin
infiltration and outdoor air intrusion
Protects encapsulation and vapor barrier systems from water damage
high humidity, and pest entry points
Mold Remediation
If mold is already present in your crawlspace, address it before encapsulation or any other moisture control work begins. We treat affected structural wood, joists, and subfloor surfaces using EPA-registered products and confirm the area is clear before proceeding with any other crawlspace work. When wood has deteriorated beyond treatment, we coordinate structural repairs alongside remediation, so your crawlspace comes out structurally sound and sealed.
Treat active mold on joists, subfloor, and structural wood
Clear the crawlspace for encapsulation or vapor barrier installation
Can be combined with structural repair where wood damage is present
Crawlspace Structural Repair
When moisture has been present long enough to compromise the structural wood in your crawlspace like your floor joists, support beams, rim joists, or pier blocks, the fix goes beyond sealing out future moisture. We replace or supplement deteriorated structural members and install adjustable steel support columns where existing support has failed, restoring the floor system above without tearing into your finished living space. Structural repairs are almost always done alongside encapsulation or vapor barrier work so the repaired structure is immediately protected from further moisture damage.
Replaces or reinforces deteriorated floor joists, beams, and support posts
Adjustable steel columns restore floor stability and can be fine-tuned over time- Addresses soft, bouncy, or sagging floors caused by moisture-compromised structure
COMMON CRAWLSPACE SIGNS
Why is There a Musty Smell in Your House?
Vented Crawlspace Humidity
Older homes were often built with vented crawlspaces, designed to let outside air circulate underneath the house. In the Triad’s humid climate, that outside air brings moisture in with it, and once it hits the cooler air under your home, it condenses on framing, insulation, and ductwork. What was meant to keep the space dry often does the opposite.
Ground Moisture Evaporation
A bare dirt floor in a crawlspace is constantly releasing moisture into the air above it, even without any visible standing water. Over time, that steady evaporation raises humidity throughout the entire space, creating the damp, musty environment that eventually makes its way into the living areas above.
Visible Mold, Fungal Growth, or Rot
Once moisture has been present long enough, mold begins growing on the wood framing, subfloor, and insulation. That musty smell you’re noticing is very often mold itself, not just dampness, which means it’s already had time to start affecting the structural wood underneath your home.
Related Musty Smell in Your Home Issues
Wet or Flooding Basement
Sagging Floors
Long-term crawl space moisture can weaken the joists and beams supporting the floor above.
Standing Water in Your Yard
Poor drainage around your home frequently pushes excess moisture toward the crawlspace.
OUR PROCESS
Our Step-by-Step Commitment
Contact Us
Call us directly or fill out the form, and we will call you back within 5 minutes to send a Certified Field Inspector to inspect and diagnose what you're noticing at your house.
Your Free Structural Inspection
A Certified Field Inspector will do a full 79-point inspection of your foundations and framing to address your concerns.
Your Engineer Certified Repair Plan
We walk you through what we found, why it's happening, and the best way to protect your home with a permanent solution, guaranteed to last.
Professional Installation
We offer a 20-year labor guarantee on everything our professionally trained crews install, plus lifetime manufacturer warranties on many of the products we use.
TESTIMONIALS
What Homeowners Are Saying
Real reviews from neighbors across the Triad
PROVEN EXPERTISE
Why Property Owners Choose Basement & Foundation Solutions
30+ years experience
Locally owned & operated
20-year labor guarantee
BBB Accredited (A+ Rating)
NFRA Member
Lifetime warranties
Free detailed inspections
Engineer-approved structural repair plans
RECENT ARTICLES
Go Deeper on the Musty Smell in Your Home
4 Early Warning Signs of Crawlspace Foundation Damage
Early warning signs of crawlspace foundation damage could be closer than you think. Identify what to look for and protect your home today.
Protect Your Home Without Putting it Off
Fixing your foundation protects everything built on top of it. We make sure the cost doesn’t get in the way with
discounts and zero-interest financing available.
Military Discount
Active duty, veterans, and spouses. Mention when you schedule.
Senior Discount
Available for homeowners 65 and older. Mention when you schedule.
First Responder
Police, fire, EMS, and emergency personnel.
0% Financing
Zero-interest on approved credit. See if you qualify here.
A foundation problem doesn’t get cheaper the longer you wait.
Zero-interest financing means you can take care of it now and pay over time with no penalty or additional markup. A lot of homeowners are surprised how manageable the monthly number actually is.
Common Questions About Musty Smells in Your Home
Is a musty smell under my house always mold?
Not always, but it’s one of the most common causes. Musty odors can also come from ground moisture evaporation or humid outside air circulating through a vented crawlspace, even without active mold growth. That said, once moisture has been present for a while, mold often does develop, so a persistent smell is worth having inspected rather than assumed to be harmless dampness.
Does crawlspace moisture actually affect the air I breathe inside my home?
Yes, more than most homeowners realize. Air from the crawlspace rises into the living space above through what’s known as the stack effect, meaning a significant portion of the air circulating through your home can originate underneath it. If that air carries mold spores, musty odors, or excess humidity, it affects indoor air quality throughout the house, not just in the crawlspace itself.
What's the difference between a vapor barrier and full encapsulation?
A vapor barrier covers the ground to block moisture evaporation, addressing one major source of crawlspace humidity at a lower cost. Full encapsulation goes further, sealing the entire crawlspace, including walls and vents, and is typically paired with a dehumidifier for complete moisture control. Which one makes sense depends on how much of the humidity problem is coming from the ground versus the outside air.
Can I finance my crawlspace project?
Yes. We offer zero-interest financing on approved credit, so you can move forward with the repair now and pay over time without any added cost. Ask about financing options when you call or fill out the form and someone on our team will walk you through what’s available and how to apply to see if you qualify.
What does the process look like when we are ready to move forward?
When you’re ready to begin your home repair, our production manager will review your project and order the materials needed.
Within 5 business days, our office will reach out to schedule your repairs.
If your project requires an engineer-approved plan, we will arrange the necessary permits and approvals.
Say goodbye to musty smells in your home for good.
We show up, take a thorough look at everything, and tell you exactly what your home needs. The inspection is free and there’s no pressure to move forward until you’re ready.
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