Crawl Space FAQs in MD

Crawl Space Repair
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How do I know if there is mold in my crawl space?

Even if mold colonies are still not visible, they might just well be there. A strong indicator of a mold infestation in its early stages is the musty smell these fungi produce. Additionally, if your basement is damp, it could be ridden with mold for a long time at this point.

How to kill crawl space mold?

To get rid of existing mold in your crawl space, applying fungicide and replacement of moldy structures may be required. However, for a definitive solution, one must keep Relative Humidity levels under control. Lowering RH levels under 60% in a crawl space makes it unsustainable for mold to live, causing it to dry and die. This also prevents new occurrences of mold colonies, as long as humidity is kept at safe levels.

Why is my crawlspace wet?

Water infiltration in crawl spaces can happen due to a multitude of reasons, among which are evaporation through dirt floor, influx of humid external air through vents, condensation in ducts and pipes and leaks in plumbing. In every case, water in crawl space is bad news and should be addressed properly.

Maryland Mold and Waterproofing can adequately seal your basement against every source of humidity, turning your home into a safer and healthier living space.

Why is my crawl space moldy?

Mold occurs when Relative Humidity levels are too high. In crawl spaces, this happens when water finds its way in through evaporation, humid air currents and condensation. Properly encapsulation and continuous dehumidification are enough to uproot the causes of mold in a crawl space.

Why is the floor above the crawl space sagging, bouncy or creaking?

If your floors are making strange noises or sagging, chances are they have become weak due to excessive humidity coming from the crawl space. In such case, we strongly recommend you to call Maryland Mold and Waterproofing to address the sources of moisture coming from below, and then fix or replace the compromised structures.

How to get rid of bad smells coming from the crawl space?

Sources of bad smell coming from crawl spaces include mold, bacteria and even feces left behind by critters that find their way into the foundation. In order to permanently rid your crawl space from these pests, you should keep it dry. Maryland Mold and Waterproofing provide excellent crawl space encapsulation services, along with installation of powerful dehumidifiers, to add an extra layer of protection against humidity, year-round.

Can a moldy crawl space make my family sick?

All species of mold release spores in the air, which flow up from the crawl space into your family’s living grounds. These spores, when breathed, can cause mild to severe allergies. Additionally, a few mold species, such as black mold, release dangerous mycotoxins, which can cause very serious illnesses and should be dealt with immediately.

Can my vented crawl space be the cause of my high energy bills?

Vented crawl spaces allow external air in. During winter, that is undesirable, because you want to keep heated air in and cold air out of your home. This can be accomplished by sealing the vents. This way, your heating systems will require less energy to keep temperatures at comfortable levels.

Why are the floors above the crawl so cold during the winter?

If your crawl space has unsealed vents, cold air flows in and moves upwards, making your floors cold and your living spaces uncomfortable and harder to heat.

What is the best way to insulate the crawl space?

Even if your crawl space is already insulated, the technique employed may not have been ideal. Fiberglass batts or lining does not adequately seal the floor, because air can still pass through. Additionally, batts can become soaked with moisture and end up moldy or collapse due to the water weight.

The encapsulation techniques employed by the specialists at Maryland Mold and Waterproofing are on par with recommendations by modern building science.

What is the best type of insulation for a crawl space?

Choice of material for insulation is paramount. Fiberglass, for example, would constitute a terrible choice.

That’s why, at Maryland Mold and Waterproofing, we use rigid foam board or closed-cell spray foam, both of which are impervious to moisture and mold. 

How do I keep pests and wildlife away from my crawl space?

Having your crawl space encapsulated puts a physical barrier between it and the outside, making it much harder for critters to get in. Additionally, encapsulation keeps your crawl space dry, which makes it impossible for mold to survive down there.

Do crawl space vent fans work?

Crawl space vents, once thought to help with keeping crawl spaces dry, are now known to make things much worse. Vents allow humid air from outside in, which is a major source of moisture.

Sealing these vents, encapsulating the crawl space and running a good dehumidifier are excellent measures to prevent hazards caused by humidity in the foundation.

Does crawl space encapsulation help mitigate radon?

Crawl space encapsulation helps with keeping radon gas out as a physical barrier, but significant volumes of radon would require a proper radon mitigation system.

Is crawl space encapsulation safe when your home has high radon levels?

If your home has been tested for high concentrations of radon gas, both encapsulation and a radon mitigation system should be placed. These measures, when combined, are much more effective than one or the other alone.

Healthy Basement & Healthy Crawl Space Certificate

The Healthy Basement and Crawl Space Certificates were created using specific sets of criteria to provide a healthy indoor living environment. Air pollutants and excessive moisture levels in the basement or crawl space can negatively impact the odors in the home as well as cause health problems with those who live there year-round - including yourself!

We offer 6 levels of Healthy Basement Certificate, and 5 levels Healthy Crawl Space Certificate, each designed to solve specific problems and protect your home, family, and property value on the long run.

Steps towards a healthy basement and a Nationally Backed Warranty.

All of our Healthy Basement / Crawl Space Contractors are trained and certified.

Steps towards a healthy crawl space and a Nationally Backed Warranty.

All of our Healthy Basement / Crawl Space Contractors are trained and certified.

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Service Area

Maryland Mold & Waterproofing offers a variety of services from waterproofing to foundation repairs. We offer the following services in your area, basement waterproofing, crawl space encapsulation, sump pump installation and service, basement crack repair, vapor barriers and moisture control.

  • Aberdeen Proving Ground, MD
  • Aberdeen, MD
  • Abingdon, MD
  • Accident, MD
  • Accokeek, MD
  • Andrews Air Force Base, MD
  • Annapolis Junction, MD
  • Annapolis, MD
  • Aquasco, MD
  • Arnold, MD
  • Ashton, MD
  • Baldwin, MD
  • Baltimore, MD
  • Barclay, MD
  • Barnesville, MD
  • Beallsville, MD
  • Bel Air, MD
  • Belcamp, MD
  • Beltsville, MD
  • Benson, MD
  • Berlin, MD
  • Bethesda, MD
  • Bethlehem, MD
  • Betterton, MD
  • Bishopville, MD
  • Bladensburg, MD
  • Boring, MD
  • Bowie, MD
  • Boyds, MD
  • Bozman, MD
  • Brandywine, MD
  • Brentwood, MD
  • Brinklow, MD
  • Brookeville, MD
  • Brooklandville, MD
  • Burtonsville, MD
  • Butler, MD
  • Cabin John, MD
  • Capitol Heights, MD
  • Catonsville, MD
  • Centreville, MD
  • Chase, MD
  • Cheltenham, MD
  • Chester, MD
  • Chestertown, MD
  • Chevy Chase, MD
  • Church Hill, MD
  • Churchton, MD
  • Churchville, MD
  • Claiborne, MD
  • Clarksburg, MD
  • Clarksville, MD
  • Clinton, MD
  • Cockeysville, MD
  • College Park, MD
  • Columbia, MD
  • Cooksville, MD
  • Cordova, MD
  • Crofton, MD
  • Crownsville, MD
  • Crumpton, MD
  • Curtis Bay, MD
  • Damascus, MD
  • Darlington, MD
  • Davidsonville, MD
  • Dayton, MD
  • Deale, MD
  • Denton, MD
  • Derwood, MD
  • Dhs, MD
  • Dickerson, MD
  • District Heights, MD
  • Dundalk, MD
  • Easton, MD
  • Eden, MD
  • Edgewater, MD
  • Edgewood, MD
  • Elkridge, MD
  • Ellicott City, MD
  • Essex, MD
  • Fallston, MD
  • Federalsburg, MD
  • Forest Hill, MD
  • Fork, MD
  • Fort George G Meade, MD
  • Fort Howard, MD
  • Fort Washington, MD
  • Freeland, MD
  • Friendship, MD
  • Fulton, MD
  • Gaithersburg, MD
  • Galena, MD
  • Galesville, MD
  • Gambrills, MD
  • Garrett Park, MD
  • Germantown, MD
  • Gibson Island, MD
  • Girdletree, MD
  • Glen Arm, MD
  • Glen Burnie, MD
  • Glen Echo, MD
  • Glenelg, MD
  • Glenn Dale, MD
  • Glenwood, MD
  • Glyndon, MD
  • Goldsboro, MD
  • Grasonville, MD
  • Greenbelt, MD
  • Greensboro, MD
  • Gunpowder, MD
  • Gwynn Oak, MD
  • Halethorpe, MD
  • Hanover, MD
  • Harmans, MD
  • Harwood, MD
  • Havre De Grace, MD
  • Henderson, MD
  • Highland, MD
  • Hillsboro, MD
  • Hunt Valley, MD
  • Hyattsville, MD
  • Hydes, MD
  • Ingleside, MD
  • Jarrettsville, MD
  • Jessup, MD
  • Joppa, MD
  • Kennedyville, MD
  • Kensington, MD
  • Kingsville, MD
  • Lanham, MD
  • Laurel, MD
  • Linthicum Heights, MD
  • Lisbon, MD
  • Long Green, MD
  • Lothian, MD
  • Lutherville Timonium, MD
  • Marydel, MD
  • Maryland Line, MD
  • Massey, MD
  • Mayo, MD
  • Mcdaniel, MD
  • Middle River, MD
  • Millersville, MD
  • Millington, MD
  • Mitchellville, MD
  • Monkton, MD
  • Montgomery Village, MD
  • Mount Rainier, MD
  • Neavitt, MD
  • Newark, MD
  • Newcomb, MD
  • Nottingham, MD
  • Ocean City, MD
  • Odenton, MD
  • Olney, MD
  • Owings Mills, MD
  • Oxford, MD
  • Oxon Hill, MD
  • Parkton, MD
  • Parkville, MD
  • Pasadena, MD
  • Perry Hall, MD
  • Perryman, MD
  • Phoenix, MD
  • Pikesville, MD
  • Pocomoke City, MD
  • Poolesville, MD
  • Potomac, MD
  • Preston, MD
  • Price, MD
  • Pylesville, MD
  • Queen Anne, MD
  • Queenstown, MD
  • Randallstown, MD
  • Reisterstown, MD
  • Riderwood, MD
  • Ridgely, MD
  • Riva, MD
  • Riverdale, MD
  • Rock Hall, MD
  • Rockville, MD
  • Rosedale, MD
  • Royal Oak, MD
  • Saint Michaels, MD
  • Sandy Spring, MD
  • Savage, MD
  • Severn, MD
  • Severna Park, MD
  • Shady Side, MD
  • Sherwood, MD
  • Showell, MD
  • Silver Spring, MD
  • Simpsonville, MD
  • Snow Hill, MD
  • Southern Md Facility, MD
  • Sparks Glencoe, MD
  • Sparrows Point, MD
  • Spencerville, MD
  • Stevenson, MD
  • Stevensville, MD
  • Still Pond, MD
  • Stockton, MD
  • Street, MD
  • Suburb Maryland Fac, MD
  • Sudlersville, MD
  • Suitland, MD
  • Takoma Park, MD
  • Temple Hills, MD
  • Templeville, MD
  • Tilghman, MD
  • Towson, MD
  • Tracys Landing, MD
  • Trappe, MD
  • Upper Falls, MD
  • Upper Marlboro, MD
  • Upperco, MD
  • Washington Grove, MD
  • West Friendship, MD
  • West River, MD
  • Whaleyville, MD
  • White Hall, MD
  • White Marsh, MD
  • Whiteford, MD
  • Windsor Mill, MD
  • Wittman, MD
  • Woodbine, MD
  • Woodstock, MD
  • Worton, MD
  • Wye Mills, MD