Severn, MD Basement Waterproofing & Foundation Repair
- Licensed & Insured
- 5-Star Rated
- Local Business
- Transferable Warranty
Waterproofing & Foundation Services in Severn, MD
Best Buy Waterproofing offers basement waterproofing and foundation repair in Severn for a community where much of the housing went up in the 1990s and 2000s. Newer does not always mean dry. Builder-grade drainage, backfill that settles against the walls and a single small sump pit can leave a basement struggling after a few heavy storms. Older homes in the area face their own wear. Whatever the age of your house, we find where the problem starts and fix the cause.
Our Columbia office is close by in neighboring Howard County, and one in-house team handles waterproofing, foundation repair, crawl space repair and spray foam insulation, plus mold remediation and basement finishing. We have served homeowners since 2017, are licensed in Maryland, Virginia, Washington DC, Pennsylvania, Delaware and West Virginia, and are insured. Every project begins with a free inspection, we are available 24/7, and financing is available.
Our Services in Severn
Basement Waterproofing
Foundation Repair
Crawl Space Repair
Mold Remediation
- Mold Inspection
- Containment & Removal
- HEPA Air Filtration
- Moisture Source Repair
Spray Foam Insulation
- Rim Joist Insulation
- Basement Wall Insulation
- Crawl Space Wall Insulation
- Basement Air Sealing
Basement & Foundation Problems We Solve in Severn, MD
Severn sits on the Atlantic Coastal Plain, where layered sandy and clay soils can stay wet for days after a heavy summer storm, and freeze-thaw winters work on every foundation. Much of the town was built in the 1990s and 2000s, so we see plenty of problems that start with how a newer home was graded, backfilled and drained.
Builder-Grade Drainage That Falls Short
Many newer Severn homes came with basic perimeter drainage and one small sump pump. Over time, sediment can slow the drains and a pump can wear out or fall behind in a long storm. We can add interior drainage, upgrade the sump pump with a sealed lid and check valve, and add battery backup and high-water alarms for extra protection. Basement Waterproofing in Severn →
Settling Backfill and Sloping Yards
The soil placed around a new foundation is loose fill, and it keeps settling for years. When it sinks, the yard can start to slope toward the house, sending roof and lawn water straight at the basement walls. We look at grading and downspouts during the inspection and recommend interior or exterior waterproofing where water is already getting in. Foundation Repair in Severn →
Early Cracks in Poured Walls
Hairline cracks in a poured concrete wall are common in younger homes and often come from normal curing. Some stay dry, and some start to leak once the soil outside is saturated. We seal leaking cracks with injection from the inside, and we check for horizontal or widening cracks that point to soil pressure or settlement. Foundation Repair in Severn →
Settling and Bowing Foundations
Fill that compresses under a footing can let a corner drop, leading to stair-step cracks and doors that stick. On older block walls, wet clay can push sideways until a wall bows inward. We stabilize settling foundations with push piers or helical piers, and bowing walls with carbon fiber straps or steel I-beam wall braces. Foundation Repair in Severn →
Damp Crawl Spaces and Cold Rooms
Humid summers load crawl spaces with moisture, and uninsulated rim joists let cold air into basements and townhome lower levels. Encapsulation with a sealed vapor barrier and a commercial-grade dehumidifier keeps a crawl space dry. Closed-cell spray foam on rim joists, basement walls and crawl space walls cuts drafts and condensation. Crawl Space Repair in Severn →
How It Works
Free Inspection
A specialist visits your Severn home and finds the source of the problem.
Your Recommendation
We walk you through what we found and the solution we recommend for your home.
Expert Installation
Our own crew completes the work, including any permits your project needs.
Warranty Protection
Your repair is backed by a transferable warranty.
What Affects the Cost of Waterproofing & Foundation Repair?
No two Severn homes are the same, so we don’t quote from a price list. After a free inspection you get a firm price for your home.
Source of the Problem
Surface water, groundwater pressure and plumbing leaks each call for a different fix.
Size of the Area
How many walls, how many linear feet, and how much of the space is affected.
Foundation Type
Poured concrete, block, brick and stone foundations are repaired differently.
Structural Condition
Cracks, bowing or settling may need stabilization along with waterproofing.
Access & Finished Space
Finished walls, flooring, tight crawl spaces and landscaping affect the work.
Equipment Needed
Sump pumps, battery backups, dehumidifiers and drainage add-ons.
Severn Basement & Foundation FAQs
My Severn home is fairly new. Why is the basement wet?
A newer home still sits in soil that holds water after heavy storms. Builder-grade drainage may be undersized or clogged, the sump pump may be small, and settling backfill can tip the yard toward the house. Any of these can send water into the basement. A free inspection shows where water is entering and why.
Do you work on townhomes?
Yes. Many Severn townhomes have below-grade lower levels that share walls with neighbors. We can waterproof, repair cracks and insulate inside your unit, working from the interior so we do not disturb shared yards. If your community has rules about exterior work, we take those into account in our recommendation.
Are cracks in a newer poured wall a problem?
Not always. Thin vertical cracks often come from concrete curing and may only need sealing if they leak. Horizontal cracks, stair-step patterns in block, or cracks that keep widening point to soil pressure or settlement and deserve a closer look. We explain which kind you have during your free inspection.
Do you also work on older homes in Severn?
Yes. Alongside the newer subdivisions, Severn has older single-family homes with block foundations and crawl spaces. Those homes are more likely to have bowing walls, worn mortar joints or damp crawl spaces. We handle both, so whatever the age of your house, one team covers the whole job.
How much will my project cost?
We do not quote from a price list, because every Severn home is different. The size of the space, the foundation type, the condition of existing drainage and the repair your home needs all affect the price. After a free inspection, we walk you through what we found and what we recommend, and you get a firm price.
Is your warranty transferable?
Yes. Our work comes with a transferable warranty, so if you sell your Severn home, the protection can pass to the next owner. That can be reassuring to buyers looking at a basement or foundation that has been repaired. We review the warranty details with you before any work begins.
Areas We Serve In and Around Severn
We serve homeowners across the 21144 ZIP code in Severn, from newer subdivisions and townhome communities to older streets near Fort Meade, plus neighboring towns in Anne Arundel and Howard counties.
Serving all of Severn
- 21144
Nearby service areas
Get a Free Inspection in Severn
Whether your Severn basement leaks after storms, a wall has started to crack, or your crawl space smells damp, we can help. Request a free inspection, and we will walk you through what we found and what we recommend. Financing is available.
