Moisture control
Basement moisture control
Basement moisture control handles dampness that isn't a flood: high humidity, musty smells, condensation, mold on walls and leaking window wells. Fixes include properly sized dehumidifiers, sealing and drainage at window wells, and addressing the moisture source so mold doesn't return.
By calling, you agree to be connected with an independent waterproofing contractor, who may call or text you back about your request at the number you call from. Calls may be recorded for quality and routing. Consent is not a condition of any purchase; you can opt out at any time, and message and data rates may apply. Privacy policy.
- Typical time
- A few hours to a day.
- Repair or replace
- Control moisture sources and humidity.
Call about basement moisture control
(833) 460-4463By calling, you agree to be connected with an independent waterproofing contractor, who may call or text you back about your request at the number you call from. Calls may be recorded for quality and routing. Consent is not a condition of any purchase; you can opt out at any time, and message and data rates may apply. Privacy policy.
Mention damp basement and your ZIP.
Humid Ohio summers bring moist air into cool basements, where it condenses on walls, pipes and floors even when no water is leaking in.
Window wells without drains or covers fill with water and leak around the window frame.
Basement Moisture Control at a glance
- What it is
- Basement moisture control handles dampness that isn't a flood: high humidity, musty smells, condensation, mold on walls and leaking window wells.
- Service category
- Moisture control
What are the signs you need damp basement help?
- Musty smell
- Condensation on walls or pipes
- Mold spots on walls, stored boxes or wood
- Humidity above about 60%
- Water around basement windows
Quick answers
What should you know about basement moisture control first?
How long basement moisture control takes
A few hours to a day.
When damp basement can wait, and when it can't
Planned.
Fix or replace damp basement?
Control moisture sources and humidity.
Why damp basement happens
Humid summers, condensation, window wells.
Basement Moisture Control
Which basement moisture control services are there?
Each page covers one problem in depth: signs, what the waterproofing contractor does, timing and cost drivers.
- Basement DehumidifiersA basement dehumidifier removes moisture from basement air to keep humidity below about 50–60%, preventing musty odors, mold and condensation.
- Basement Mold PreventionBasement mold prevention removes the moisture that feeds mold (leaks, condensation and humidity), then cleans affected surfaces and keeps humidity low.
- Window Well Leak RepairWindow well leak repair fixes water entering around basement windows by clearing or adding a drain at the bottom of the well, installing covers, regrading, sealing or replacing the window, and connecting the well drain to the drainage system..
The work
How is basement moisture control done, step by step?
- 1
Measure
Humidity readings and moisture sources.
- 2
Fix sources
Window well drains, covers, gutters and cracks.
- 3
Control
Dehumidifier with a drain; mold cleanup where needed.
What affects the cost of basement moisture control?
Driven by dehumidifier and source fixes.
- Dehumidifier size and drainage
- Mold area
- Window well drain and cover work
Is this service available near me?
Location is only used to find the service area nearest you. It stays on your device and isn't stored.
Happening right now? 24-hour emergency service is the faster route than a scheduled visit.
What do homeowners ask about basement moisture control?
What humidity should a basement be?
Generally below about 50–60% to discourage mold and dust mites.
Is basement mold dangerous?
Mold can affect indoor air and health, especially for sensitive people. Remove the moisture source and clean affected areas.
Why does my basement smell musty without visible water?
High humidity and condensation on cool surfaces can feed mold and mildew even without leaks. Measuring humidity is the first step.
How do I measure basement humidity?
An inexpensive digital hygrometer shows relative humidity. Readings consistently above about 60 percent call for moisture control.
Is condensation the same as a leak?
No. Condensation forms when warm, humid air hits cool walls and floors, usually in summer. Leaks come from outside water entering through the structure.
What causes efflorescence on basement walls?
Water moving through masonry carries salts to the surface, where they dry as white deposits. It indicates moisture passing through the wall.
Do vapor barriers help basements?
They can, on floors and in crawl spaces. On finished basement walls, materials that let walls dry, such as rigid foam, are usually preferred over plastic sheeting.
Should I run a dehumidifier all year?
Many basements need it mainly in humid months; a dehumidifier with a humidistat runs only when needed.
Where can I verify this information about your area?
- 1U.S. Environmental Protection Agency: MoldGuidance on moisture control and keeping indoor humidity low to prevent mold.
- 2USDA Natural Resources Conservation Service: Web Soil SurveyLook up soil drainage class and shrink-swell potential for any lot in your area.
- 3FEMA: Flood Map Service CenterCheck whether a property in your area is in a mapped flood zone before finishing a basement.
- 4U.S. Environmental Protection Agency: RadonWhy basements in your area should be tested for radon, and how sealed sumps fit with mitigation.
- 5Federal Trade Commission: Hiring a ContractorWhat to check before hiring: licensing, insurance, written estimates and payment terms.
Service area
Where is basement moisture control available?
Available in every state
Calls are connected with an independent contractor that serves your ZIP code, anywhere in the U.S.
Northeast & Mid-Atlantic
Connecticut · Delaware · Maine · Maryland · Massachusetts · New Hampshire · New Jersey · New York · Pennsylvania · Rhode Island · Vermont · Washington, DC
Midwest & Great Lakes
Illinois · Indiana · Iowa · Michigan · Minnesota · Missouri · Nebraska · North Dakota · Ohio · South Dakota · Wisconsin
Southeast & Gulf Coast
Alabama · Florida · Georgia · Kentucky · Louisiana · Mississippi · North Carolina · South Carolina · Tennessee · Virginia · West Virginia
Mountain West & Southwest
Arizona · Colorado · Idaho · Montana · Nevada · New Mexico · Utah · Wyoming
Pacific Coast & Northwest
Alaska · California · Hawaii · Oregon · Washington
Related
Which services are often paired with basement moisture control?
Basement Dehumidifiers
A basement dehumidifier removes moisture from basement air to keep humidity below about 50–60%, preventing musty odors, mold and condensation.
Learn more
Basement Mold Prevention
Basement mold prevention removes the moisture that feeds mold (leaks, condensation and humidity), then cleans affected surfaces and keeps humidity low.
Learn more
Window Well Leak Repair
Window well leak repair fixes water entering around basement windows by clearing or adding a drain at the bottom of the well, installing covers, regrading, sealing or replacing the window, and connecting the well drain to the drainage system..
Learn moreGuides
What should you read before calling?
Call about a damp basement
Humid summers, condensation, window wells.
By calling, you agree to be connected with an independent waterproofing contractor, who may call or text you back about your request at the number you call from. Calls may be recorded for quality and routing. Consent is not a condition of any purchase; you can opt out at any time, and message and data rates may apply. Privacy policy.