Crawl Space Encapsulation in Winston-Salem, NC
HydroHelp911 does crawl space encapsulation in Winston-Salem and Forsyth County, from our nearby Greensboro office. If you're looking for a reliable contractor for crawl space encapsulation, you're in the right place: we'll help you understand what is going on with your crawl space and recommend repairs built to last. Start with a free inspection, or read on to learn more. Homes in Winston-Salem mostly sit on clay with a low USDA rating for swelling and shrinking.
Get a Free Inspection
Two ways to start. Both are free, with no obligation.
Pick your own day in our calendar. You save $250 if you go ahead with the work.
Send a short form, and our office will call to book a time that suits you.
For new customers who book online through our website and then sign a contract.
Greensboro office
1515 W Cornwallis Dr Suite 201-B
Greensboro, NC 27408
Phone
(336) 914-5532Hours
Monday to Friday, 8:00 AM to 9:00 PM. Saturday, 8:00 AM to 4:00 PM
Crawl Space Encapsulation in Winston-Salem
Who Handles Crawl Space Encapsulation Near You in Winston-Salem?
Crawl space encapsulation in Winston-Salem is handled by our Greensboro office, 25 miles away and about 30 minutes on the road.
Soil: clay
Expansion risk: low
Housing: U.S. Census Bureau, American Community Survey.
Crawl spaces in Winston-Salem
When Were Most Winston-Salem Homes Built?
Based on U.S. Census Bureau survey data, the median Winston-Salem home was built in 1979, and about 51 percent of all 112,191 housing units counted, apartments and attached homes included, were built before 1980. More of them went up in the 1970s than in any other decade, 17,471 homes.
Based on NOAA 1991 to 2020 climate normals for Piedmont Triad International Airport, about 18 miles away, the average July dew point near Winston-Salem is about 67 degrees. Dew point is the temperature at which water condenses out of the air, so in a vented crawl space, July air can leave water on a pipe, duct or joist that is cooler than about 67 degrees.
| Built | Homes | Share |
|---|---|---|
| Before 1940 | 8,701 | 8% |
| 1940s | 5,103 | 5% |
| 1950s | 13,619 | 12% |
| 1960s | 12,818 | 11% |
| 1970s | 17,471 | 16% |
| 1980s | 16,060 | 14% |
| 1990s | 14,148 | 13% |
| 2000s | 15,114 | 13% |
| 2010s | 8,657 | 8% |
| 2020 on | 500 | under 1% |
Housing: U.S. Census Bureau, American Community Survey, year structure built, for Winston-Salem. Counts are housing units. Climate: NOAA U.S. Climate Normals 1991 to 2020, WINSTON SALEM RYNLDS AP (USW00093807); July dew point averaged from the 744 hourly normals at PIEDMONT TRIAD INTL AP (USW00013723), retrieved October 9, 2026.
The ground in Winston-Salem
How Does Winston-Salem Soil Affect Crawl Spaces?
The USDA sample inside Winston-Salem is mostly Fairview soil, a deep red clay. Of the five points the USDA sampled inside Winston-Salem, four are Fairview and one is Codorus. Across Forsyth County, Fairview covers more than a quarter of the land, with Clifford, Tomlin and Poplar Forest the next most common. The USDA rates the sample inside Winston-Salem low for swelling and shrinking.
Fairview is a deep soil that formed in place as pale rock such as granite and gneiss beneath it weathered, usually found on ridges and hillsides. Its top layer is sandy clay loam, and under that is red clay. Loam is soil with a mix of sand, silt and clay. It drains well, and the USDA rates it low for swelling and shrinking, which means it changes size very little as it gets wet and dries out.
Codorus is a deep soil that formed from sediment laid down by streams, usually found on stream flood plains. Its top layer is silt loam, and under that is brown loam. It drains somewhat slowly, and it can stay wet near the surface for part of the year.
What It Means for Your Home
- What works in your favorFairview drains well, so rain usually soaks away instead of collecting on the crawl space floor. It also changes size very little as it wets and dries, so the piers and footings under a crawl space sit on steady ground.
- What to watchEven soil that drains well can stay wet where roof runoff collects beside a house, and the ground under a crawl space still gives off moisture into the air. Open vents let in humid summer air on top of that, and humid air there can lead to musty odors, mold and wood rot over time.
- Signs you might noticeLook for cold floors, high humidity under the house, and musty odors.
- How we address itOur usual recommendation is full encapsulation: a sealed vapor barrier over the ground, walls and piers, a crawl space dehumidifier, and sealed vents, which stay closed once the space is encapsulated. Where water reaches the floor, a drainage system is part of the job.
Soil survey: USDA NRCS Soil Data Access (SSURGO), sdmdataaccess.nrcs.usda.gov. Inside Winston-Salem, the survey maps Fairview and Codorus series. USDA rates the soil low for swelling and shrinking (weighted linear extensibility 1.5 percent). Across Forsyth County, it maps Fairview, Clifford, Tomlin and Poplar Forest series. Series descriptions: USDA NRCS Official Series Descriptions for Fairview and Codorus.
Our approach
How Do We Approach Crawl Space Encapsulation in Winston-Salem?
Most crawl space problems in Winston-Salem come down to one thing: moisture. A vented crawl space in our climate is exposed to bare soil below and warm, humid outside air flowing in through the vents, and that combination keeps the space damp for much of the year.
Crawl space encapsulation is the process of sealing the crawl space into a clean, dry, controlled environment.
It usually combines a heavy liner across the floor, up the foundation walls and around the piers, sealed foundation vents that stop humid air from entering, insulation where it belongs, and humidity control with a dehumidifier installed in the crawl space, plus interior drainage where water gets in.
The result is a crawl space that no longer feeds moisture into the framing, ductwork, and insulation above it. Homeowners often notice lower humidity in the rooms above and less of a musty smell.
Our process is simple:
- A free inspection to find where the moisture is coming from
- A plain explanation of what we see
- A recommendation built around your crawl space
Some homes need full encapsulation with a dehumidifier and interior drainage; others need only a vapor barrier and sealed vents. The crawl space encapsulation warning signs and the crawl space encapsulation solutions explain each one in plain terms.
Warranty terms, with their conditions, are on our warranties page.
How Much Rain and Humidity Does Winston-Salem Get?
Based on NOAA 1991 to 2020 climate normals for Winston Salem Reynolds Airport, about 3 miles away, Winston-Salem averages 43.2 inches of precipitation a year and a July dew point of about 67 degrees, with about 64 days a year when the low reaches 32 degrees or colder.
Climate: NOAA 1991 to 2020 normals, Winston Salem Reynolds Airport and Piedmont Triad International Airport.
What we install
Which Crawl Space Encapsulation Solutions Do We Install in Winston-Salem?
-
Vapor Barrier Installation in Winston-Salem
Installing a sealed liner across the crawl space floor, foundation walls and piers to block ground moisture from rising into the home. -
Dehumidifier Installation in Winston-Salem
Installing a crawl space dehumidifier to hold humidity at a stable, safe level and keep an encapsulated space dry year round. -
Crawl Space Insulation in Winston-Salem
Adding or replacing crawl space insulation to reduce heat loss, warm the floors above, and protect the sealed space from temperature swings. -
Crawl Space Vent Sealing in Winston-Salem
Sealing open crawl space vents to stop humid outside air from entering and undermining the rest of the encapsulation. -
Drainage System Installation in Winston-Salem
Installing an interior crawl space drainage system and sump pump to collect and remove water that reaches the crawl space floor.
Cost and scope
What Does Crawl Space Encapsulation Cost in Winston-Salem?
The price of crawl space encapsulation depends on what the inspection finds. The free inspection ends with a written estimate that spells out the method, scope, and price.
What Moves the Price?
- What the inspection finds
- The method that fits your home
- The size of the area involved
When Is Crawl Space Encapsulation Not the Right Fix?
If your crawl space only needs a vapor barrier and sealed vents, we will tell you that and recommend only what your crawl space needs.
Where we work
Which ZIP Codes in Winston-Salem Do We Serve?
We work addresses in ZIP codes 27012, 27023, 27040, 27045, 27101, 27103, 27104, 27105, 27106, 27127, 27284.
Problem signs
What Are the Signs You May Need Crawl Space Encapsulation in Winston-Salem?
- High Humidity LevelsHigh humidity in a crawl space is moisture held in the air beneath your home, a separate condition from standing water, though the two often occur together.
- Musty OdorsA musty odor is a stale, earthy smell like a damp basement, usually strongest in lower rooms, near floor vents, and on humid days.
- Standing Water in Crawl SpaceStanding water in a crawl space is liquid water collected on the floor, on the vapor barrier, or in low spots over the soil.
- Condensation on HVAC VentsCondensation on HVAC vents and ducts is water that forms on cooler registers, supply boots, and ductwork when the surrounding air is warm and humid enough to reach its dew point, the same way a cold glass sweats in summer.
- Cold Floors Above Crawl SpaceCold floors above a crawl space feel noticeably cooler than the room air, often across a whole room or hallway, and most of all in a Carolina winter.
The crew
Some of the Team Members Who Work in Your Area
Winston-Salem is served from our Greensboro office. The same company schedules the inspection, runs the install, and answers a warranty call later.
Google reviews
What Do Homeowners Say?
The Team with HydroHelp911 was amazing to deal with. Timely, great communication and overall top notch work with our crawl space encapsulation. Jeremiah and the team were a pleasure to deal with and I highly recommend them.
Great experience. The guys at hydrohelp encapsulated my crawlspace recently and their professionalism shown through. They got the job done quickly. Once under my house they noticed some insulation issues that they did not previously catch and Justus came back out and fixed the issues himself. They were honest and hardworking and I would highly recommend this company to others.
What Do Winston-Salem Homeowners Ask About Crawl Space Encapsulation?
Don't see your question here? Call or fill out our quick online form, and our team will help.
There is no single price for crawl space encapsulation, because the cost depends on the size of the crawl space, the condition it starts in, and which components it needs. Your free inspection gives you a written estimate for your home, at no cost. For a rough figure before the visit, the cost calculator on our website gives a starting estimate. Financing is available, and your inspector can go over the options with you when you get your written estimate.
Nearby Towns
Which Towns Near Winston-Salem Do We Also Serve?
Schedule a Free Inspection for Crawl Space Encapsulation in Winston-Salem
Two ways to start. Both are free, with no obligation.
Pick your own day in our calendar. You save $250 if you go ahead with the work.
Send a short form, and our office will call to book a time that suits you.
For new customers who book online through our website and then sign a contract.
- Warranty terms and conditions
- 1,300+ verified Google reviews (4.9 stars)
- BBB A+ Accredited
- Financing options
Locally owned, headquartered in Dallas, NC, and serving the Carolinas since 2017. All service areas
Get the Free Crawl Space Guide
A free guide for homes in North and South Carolina: where crawl space moisture comes from, the signs worth writing down, and how crawl space repair and encapsulation work, in plain language.
- A crawl space checklist to walk your home with
- Where crawl space moisture comes from, from the mountains to the coast
- How a vapor barrier and full encapsulation differ
- Questions to ask about a crawl space estimate