Looking for a basement waterproofing contractor in New Carrollton, MD? Describe your project once and up to three waterproofing contractors who work in New Carrollton and Prince George's County get back to you with a quote. It's free and there is no obligation.
New Carrollton is home to about 13,645 people (2024 Census Bureau estimate), a stable community (−0.3% since 2020). With 8,715 people per sq mi, it is a densely built-up area. Heavy rains, high water tables and older foundations are the usual causes of wet basements here.
New Carrollton at a glance
- Population (Census Bureau estimate, 2024)
- 13,645 (−0.3% since 2020)
- Rank in Maryland
- 20th of 157 cities and towns
- Land area
- 1.6 sq mi
- Population density
- 8,715 people per sq mi (densely built-up)
- Type
- City (New Carrollton city)
- Main county
- Prince George's County
What to check before hiring in New Carrollton
- Outside first: check gutters, downspouts and grading before paying for a system.
- License and permit: in Maryland, check the contractor's license and whether a permit is needed.
- Warranty: ask what it covers, whether it is transferable and who backs it.
- Price drivers: wall length, system type, sump pumps and excavation.
Useful official resources
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EPA: mold
Official information and guidance.
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ICC: International Code Council
Official information and guidance.
Services available in New Carrollton
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Interior drain tile and sump pump
Interior perimeter drain, sump pump and vapor barrier to keep water out of the basement.
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Exterior waterproofing
Excavation, membrane and footing drain on the outside of foundation walls.
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Basement crack sealing
Injection or sealing of leaking cracks in poured or block foundation walls.
Frequently asked questions in New Carrollton
How much does basement waterproofing cost in New Carrollton, MD?
It depends on the system and the size of the basement. Describe the problem: contractors who serve New Carrollton reply with a quote.
How long does it take?
Interior systems often take a few days; exterior work takes longer.
Will waterproofing stop mold?
It removes the main cause. Existing mold should be cleaned up separately.
Which waterproofing contractors will contact me?
Up to three independent waterproofing contractors who serve New Carrollton and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.