Sump Pump Repair in Maryland
Sump Pump Repair across Maryland: the 511 ZIP codes and 351 cities we route calls in, and who licenses plumbers in the state.

Free to homeowners in Maryland — the contractor pays us for the introduction, you never do.
When it matters
Our sump pump repair coverage in Maryland runs to 511 ZIP codes in 351 cities. A state with both built storm systems and open ground produces two different kinds of pump failure, and which one a house is exposed to is decided by what is under the basement floor rather than by the weather.
Source: coverage area as published by our call partner; place and county names from the US Census Bureau.
We route sump pump repair calls in 511 ZIP codes across 351 Maryland cities, in 22 counties.
What this site is
Pit and Pump is a referral service, not a contractor. We connect homeowners with independent contractors. Contractors are required to hold whatever credential their state or municipality demands, and a discharge connection is usually a permitted alteration — ask to see the permit. We carry out no work, we sell no equipment, we do not set prices, and we never charge homeowners anything — the contractors in our network pay us when we route them a call.Checking a credential in Maryland
Maryland licenses are issued by the Maryland State Board of Plumbing, Department of Labor, which publishes a public search you can use before work begins.
19 of the 21 Maryland counties we cover, a cross-section, largest to smallest
- Anne Arundel County 37 ZIP codes
Annapolis, Glen Burnie, Pasadena, Arnold, Churchton, Crofton, Crownsville, Curtis Bay, Davidsonville, Deale, Edgewater, Fort George G. Meade and 17 more - Baltimore County 44 ZIP codes
Towson, Lutherville Timonium, Pikesville, Baldwin, Butler, Catonsville, Cockeysville, Dundalk, Essex, Fork, Fort Howard, Freeland and 26 more - Baltimore City County 38 ZIP codes
Baltimore, Brooklyn - Caroline County 8 ZIP codes
Denton, Federalsburg, Goldsboro, Greensboro, Henderson, Hillsboro, Preston, Ridgely - Carroll County 11 ZIP codes
Westminster, Finksburg, Hampstead, Keymar, Manchester, Marriottsville, New Windsor, Sykesville, Taneytown, Union Bridge - Cecil County 16 ZIP codes
Elkton, Cecilton, Charlestown, Chesapeake City, Colora, Conowingo, Earleville, Elk Mills, Georgetown, North East, Perry Point, Perryville and 3 more - Charles County 21 ZIP codes
Waldorf, Bel Alton, Benedict, Bryans Road, Bryantown, Charlotte Hall, Cobb Island, Hughesville, Indian Head, Issue, La Plata, Marbury and 7 more - Dorchester County 16 ZIP codes
Cambridge, Church Creek, Crapo, Crocheron, East New Market, Fishing Creek, Hurlock, Linkwood, Madison, Rhodesdale, Secretary, Taylors Island and 4 more - Frederick County 28 ZIP codes
Frederick, Adamstown, Braddock Heights, Brunswick, Buckeystown, Burkittsville, Emmitsburg, Ijamsville, Jefferson, Knoxville, Libertytown, Middletown and 11 more - Harford County 20 ZIP codes
Bel Air, Aberdeen, Aberdeen Proving Ground, Abingdon, Belcamp, Churchville, Darlington, Edgewood, Fallston, Forest Hill, Gunpowder, Havre De Grace and 7 more - Howard County 20 ZIP codes
Columbia, Ellicott City, Annapolis Junction, Clarksville, Cooksville, Dayton, Elkridge, Fulton, Glenelg, Glenwood, Highland, Jessup and 4 more - Kent County 10 ZIP codes
Chestertown, Betterton, Galena, Kennedyville, Massey, Millington, Rock Hall, Still Pond, Worton - Montgomery County 76 ZIP codes
Silver Spring, Bethesda, Gaithersburg, Rockville, Germantown, Chevy Chase, Kensington, Olney, Potomac, Takoma Park, Ashton, Barnesville and 17 more - Prince George's County 63 ZIP codes
Bowie, Hyattsville, Laurel, Capitol Heights, Upper Marlboro, College Park, Greenbelt, Beltsville, District Heights, Fort Washington, Lanham, Oxon Hill and 13 more - Queen Anne's County 12 ZIP codes
Barclay, Centreville, Chester, Church Hill, Crumpton, Grasonville, Ingleside, Marydel, Queen Anne, Queenstown, Stevensville, Sudlersville - Somerset County 5 ZIP codes
Crisfield, Deal Island, Marion Station, Princess Anne, Westover - Talbot County 15 ZIP codes
Bozman, Claiborne, Cordova, Easton, McDaniel, Neavitt, Newcomb, Oxford, Royal Oak, Saint Michaels, Sherwood, Tilghman and 3 more - Washington County 21 ZIP codes
Hagerstown, Big Pool, Boonsboro, Brownsville, Cascade, Clear Spring, Fairplay, Funkstown, Hancock, Keedysville, Maugansville, Rohrersville and 4 more - Worcester County 12 ZIP codes
Ocean City, Berlin, Bishopville, Eden, Girdletree, Newark, Pocomoke City, Showell, Snow Hill, Stockton, Whaleyville
2 more Maryland counties are inside the coverage area and are not listed here. If your ZIP code is in Maryland, the call reaches a contractor.
What that coverage looks like
Of the 511 ZIP codes we cover in Maryland, 81 are in Anne Arundel County and 37 in Baltimore. Storms do not respect that distribution: a single night's rain across 22 counties produces far more pump calls than any contractor can answer at once, which is the argument for testing yours in the dry.
How a sump pump repair job goes
A sump pump is tested by filling the pit, not by listening to it. The float has to lift, the pump has to start, the check valve has to hold and the discharge has to run clear of the house. Any of those four can fail silently and none of them announces itself until the night the pump is needed.
What the call asks about sump pump repair
- Whether the pump runs at all when the float is lifted by hand.
- Where the discharge goes, and whether it is frozen, blocked or running back into the pit.
- Whether there is a battery backup, and when it was last tested.
Every Maryland city we route in
86 cities, ordered by the share of housing built before 1970. Basements, and the groundwater under them, are a function of when and how the housing was built. Each page carries that city’s own numbers and the ZIP codes we route there.
- Dundalk 80%
- Takoma Park 79%
- Baltimore 76%
- Kensington 76%
- Brooklyn 76%
- Halethorpe 72%
- Gwynn Oak 69%
- Riverdale 69%
- Linthicum Heights 68%
- Mount Rainier 66%
- Temple Hills 63%
- Hyattsville 60%
- Chevy Chase 59%
- Parkville 58%
- Essex 57%
- Bladensburg 55%
- Capitol Heights 54%
- Towson 52%
- Cambridge 52%
- Catonsville 51%
- Sparrows Point 51%
- Bethesda 51%
- Pikesville 51%
- Oxon Hill 50%
- District Heights 50%
- Silver Spring 49%
- Williamsport 49%
- Lanham 48%
- College Park 46%
- Pocomoke City 46%
- Hagerstown 46%
- Indian Head 45%
- Lutherville Timonium 44%
- Joppa 44%
- Beltsville 44%
- Suitland 44%
- Smithsburg 43%
- Boonsboro 42%
- Glen Burnie 41%
- Thurmont 40%
- Greenbelt 39%
- Severna Park 38%
- Aberdeen 38%
- Middle River 37%
- Rockville 37%
- Havre De Grace 36%
- Rosedale 36%
- Pasadena 35%
- Randallstown 35%
- Reisterstown 34%
- Chestertown 34%
- Windsor Mill 33%
- Edgewater 33%
- Easton 33%
- Rising Sun 32%
- Salisbury 32%
- Fort Washington 31%
- Westminster 31%
- Annapolis 30%
- Denton 30%
- Taneytown 29%
- Potomac 29%
- Finksburg 28%
- Manchester 27%
- Middletown 26%
- Nottingham 26%
- Hampstead 26%
- Fallston 26%
- Crownsville 26%
- Accokeek 25%
- Elkton 25%
- Clinton 24%
- Bowie 24%
- Cockeysville 24%
- Brandywine 24%
- Centreville 23%
- Damascus 23%
- Laurel 23%
- Frederick 22%
- Walkersville 22%
- Arnold 22%
- Millersville 22%
- Derwood 21%
- Perry Hall 21%
- Edgewood 21%
- Delmar 20%
Before you call
A pump is tested by pouring water into the pit, not by listening for it. The pages above say what to check and how often.

