Basement Waterproofing in Towson, MD
Rain falling on Towson, MD heads two ways: east down Herring Run toward the Back River, or west down Towson Run toward the Jones Falls. When some of it reaches your basement floor instead, describe what you see in a short request, and one independent local contractor will get in touch about a visit and a written estimate.
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Towson, MD Basement Waterproofing, Explained
Towson is an unincorporated community in Baltimore County, about 7 miles north of downtown Baltimore, and voters made it the county seat on February 13, 1854, after the city broke away from the county. The 2020 Census counted 59,553 residents. County offices answer every permit and sewer question.
What this site is: a free referral and advertising service. It holds no Maryland Home Improvement Commission (MHIC) license, is neither a contractor nor a salesperson, and never inspects, bids on or performs basement work. One independent contractor receives your request and may pay a flat advertising fee (waived during a trial). You pay and receive nothing.
How Old Are Towson, MD Basements?
William and Thomas Towson settled here in 1752, and Ezekiel Towson's hotel, a stop for farmers hauling crops to the port, turned the crossroads into "Towsontown." The university began as the Maryland State Normal School in 1866, moved here in 1915 and became Towson University in 1997.
Census survey data put the typical home at about 1966; roughly 22% date from the 1950s and 11% from 1939 or earlier, about 42% before 1960 in all. Of 24,871 homes, about 34% are detached and 22% attached, in neighborhoods such as Rodgers Forge and Anneslie. In this university town only about 56% of homes are owner-occupied, yet the median value, $469,000, tops the five communities covered here.

The Five Services in Towson, MD
- Full basement waterproofing. Interior drain tile feeding a sump suits many finished mid-century basements, since the digging stays indoors.
- Leak repair. Single wet spots tend to start at pipe openings, window wells or the floor-wall joint.
- Foundation crack repair. Injection for poured walls; a stair-step crack in block or a wall bowing inward is worth having looked at soon.
- Sump pump installation. A new pit or pump that discharges well away from the walls; tying it into any drain or sewer pipe is a Maryland-licensed plumber's job.
- Basement drainage. Downspout extensions, regrading and footing drains for sloped yards.
Details sit on the full waterproofing and sump pump pages.
Herring Run Starts Here
Herring Run has its headwaters in Towson and travels 11.1 miles to the Back River, draining 31 square miles. To the west, Towson Run meets the Jones Falls at Lake Roland. A June 2021 downpour flooded roads in Towson (CBS Baltimore; WMAR), and in September 2023 WMAR reported Anneslie neighbors facing washed-out yards and flooded basements after heavy rain.
The Maryland Geological Survey notes gneiss domes in Baltimore County, and slow-draining clay can hold water against a wall when summer thunderstorms or a snowmelt thaw add pressure.
A floor drain pushing water up points to the sewer rather than the walls. County lines, more than 3,000 miles with 110 pumping stations (U.S. Justice Department, 2005), carry sewage to plants run by Baltimore City. Report a backup to Baltimore County DPWT's Emergency Sewer Service at 410-887-7415 (listed hours 6 a.m. to 1:30 a.m.).

Permits for Towson, MD Are Issued in Towson
Every Baltimore County permit runs through Permits, Approvals and Inspections (PAI), based right here at the County Office Building, 111 West Chesapeake Avenue, Room 100 (410-887-3900). Structural work and alterations need a permit, and a private contractor's permit carries its MHIC number. Only Baltimore County licensed plumbing contractors may apply for plumbing permits. Whether interior drain tile alone needs one is unsettled, so ask PAI. Inspections: building 410-887-3953, plumbing 410-887-3620.
What Basement Work Costs Near Towson, MD
No Maryland source publishes basement prices, so these rows are national; a finished basement can add drywall and flooring work.
| Cost row | Figure | Source (year) |
|---|---|---|
| Typical basement waterproofing project | about $3,000 to $10,000 (average about $5,000) | Fixr national (2026) |
| Interior perimeter drain, per linear foot | $40 to $120 | Fixr national (2026) |
| Sump pump installation | $600 to $2,500 | Fixr national (2026) |
| Epoxy crack injection, per crack | $250 to $1,000 | Fixr national (2026) |
| Waterproof paint or sealant, per sq ft | $1 to $8 | Fixr national (2026) |
Try your own basement size in the cost calculator.
Why Towson, MD Residents Reach Out
- Someone nearby. Your request goes to a single independent contractor working in the area.
- An estimate worth studying. Ask for drain footage, the pump, its discharge point and each payment stage in writing.
- No charge for asking. Homeowners never pay to send a request.
Before anything is signed, look the company up on MHIC's online license lookup (labor.maryland.gov/license/mhic) or at 410-230-6231. Work by an MHIC license holder can open the state Guaranty Fund to you, up to $30,000 for a resulting loss (eligibility limits apply). Maryland bars payment before the contract is signed and caps the deposit at one-third of the price.
Run Two Checks for Your Towson, MD Home
First confirm that a contractor serves your address, then use the wet basement checker to tell seepage from a backup.
Towson, MD FAQ
Can I visit the County permit office in Towson about my project?
Yes, PAI is at 111 West Chesapeake Avenue, Room 100 (410-887-3900), though the contractor usually applies and the permit must show its MHIC number. If the job is only interior drain tile or a sump draining to the yard, ask PAI whether a permit applies.
My yard washes out in heavy rain. Will the basement leak too?
Not necessarily. Yard runoff is a surface problem that gutters, downspout extensions and grading sloped away from the house often handle. If water still seeps through the walls or the floor joint afterward, interior drainage may be the next thing a contractor discusses.
Is a 1960s house too new for water problems?
No. With the typical home dating to about 1966, many basements here are near 60 years old. Aging drain tile and sump systems clog or wear out, poured walls develop shrinkage cracks, and block joints loosen. Drainage around the house matters as much as age.
Does inviting a contractor over commit me to anything?
No. When a purchase of $25 or more is agreed away from the seller's business, even at a visit you requested, Maryland law generally lets you cancel until midnight of the third business day. The seller must give you written notice of that right and a cancellation form.
More Local Pages
Neighbors to the northeast and northwest have guides of their own: see Parkville, MD and Pikesville, MD.
Talk to a Contractor Near Towson, MD
Jot down which wall gets wet and how long after a storm it shows, then send the short form. The contractor who receives it gets in touch to arrange a look; whether you sign anything afterward is up to you.