9 verified septic companies across 7 cities in Montgomery County. Compare ratings, services, and request free quotes from local providers.
Montgomery County, Maryland is home to a mix of dense suburban neighborhoods and quieter rural stretches, and connecting the right homeowner with a qualified septic service provider is what this directory is built to do. This page lists 9 verified septic companies serving 7 cities and towns across the county. Montgomery County sits within the Piedmont region, where clay-heavy soils in some areas can affect drain field performance and drainage rates — making routine maintenance especially relevant for property owners away from public sewer lines. The county's older housing stock in communities like Silver Spring and Gaithersburg means some systems have been in service for decades and may require more frequent inspection. Whether you own a recently constructed home with a modern alternative system or an older property with a conventional gravity-fed tank, this directory can help you locate nearby professionals without sorting through unrelated results.
North Potomac, MD
⭐ 5.0 (4 reviews)
Leigh & Sons Liquid Waste Removal is a family-owned and operated septic service company serving Montgomery, Frederick, Howard, and Prince George's County in Maryland since 1985. With nearly four decades of experience, the company provides a comprehensive range of liquid waste services including septic tank pumping, grease trap pumping, manhole riser installation, and Dekorra Rocks installation. They also offer a used cooking oil buyback program, Pro Pump septic tank treatment, and emergency septic services for urgent situations. Owner-overseen operations ensure quality workmanship on every job, and the team is known for its same-day call-back policy and commitment to honest, transparent communication. Serving both residential and commercial customers throughout the greater Washington and Maryland metro areas, Leigh & Sons has built a lasting reputation for reliability, integrity, and competitive pricing. Homeowners and businesses looking for a trusted, long-established septic service provider in Maryland can reach Leigh & Sons Liquid Waste Removal at 301-963-9399 to schedule a free estimate.
Germantown, MD
⭐ 4.6 (319 reviews)
Gaithersburg, MD
⭐ 5.0 (795 reviews)
# King & Sons Septic Service, LLC King & Sons Septic Service is a family-owned and operated septic company serving central Maryland and surrounding areas since 1980. Based in Gaithersburg, Maryland, the company has built a solid reputation as a full-service septic provider with three generations of the King family involved in day-to-day operations. The company offers comprehensive septic services including septic tank pumping, septic tank cleaning, septic system installation, septic inspections, emergency septic service, drain cleaning, grease trap cleaning, and well and septic inspections. King & Sons also provides plumbing-related services such as leak detection and pipe repair. The team is committed to delivering fast, professional, and courteous service at reasonable prices, with a focus on customer satisfaction. Owner Gary King emphasizes the company's dedication to maintaining high-quality workmanship and a fine reputation within the septic service industry.
Silver Spring, MD
⭐ 5.0 (67 reviews)
Silver Spring, MD
⭐ 5.0 (11 reviews)
Dickerson, MD
⭐ 5.0 (1 reviews)
Ashton, MD
⭐ 4.8 (464 reviews)
Shipley Plumbing Heating Cooling is a trusted home services company serving Maryland residents, reachable at (301) 683-7080. The company offers a comprehensive range of services including plumbing, drain and sewer cleaning, air conditioning, and heating, along with ongoing service plans for added peace of mind. With decades of local experience and hundreds of five-star reviews, Shipley has built a strong reputation for prompt response times, fair pricing, and clean, professional workmanship. Their technicians are known for being courteous, knowledgeable, and thorough, taking the time to explain work before and after each job. The company backs every service with a 100% satisfaction guarantee, giving homeowners confidence that the job will be done right the first time. From emergency water heater replacements to sump pump repairs and full system diagnostics, Shipley delivers reliable results across plumbing and HVAC needs. Customers have relied on Shipley for over 20 years, making them a well-established choice for Maryland homeowners seeking honest, skilled, and affordable home service solutions.
Gaithersburg, MD
⭐ 4.5 (34 reviews)
Laytonsville, MD
⭐ 4.3 (11 reviews)
John Seek Septic Tank Pumping provides septic services in Montgomery, Frederick, and Howard Counties in Maryland. Operating since 1950, the company offers septic tank pumping and maintenance, septic repairs, residential septic inspections, and grease trap services. They are based in Laytonsville, MD and have won the "Best of Laytonsville" Award and been rated the #1 septic company in Montgomery County. The company offers military discounts, free estimates, and same-day service. They operate Mond
Montgomery County, Maryland presents a varied septic landscape shaped by its geography and development patterns. The eastern and central portions of the county are largely served by municipal sewer systems, while the western and northern areas — including parts near Poolesville and Damascus — have a higher concentration of properties relying on on-site septic systems. Homes in these areas often use conventional gravity-fed systems, though pump-up systems are common where site topography requires effluent to be moved uphill to a drain field. Older properties may still have cesspools or systems installed under earlier code standards. Maryland's humid climate, with warm summers and periodic heavy rainfall, can temporarily saturate drain fields, making spring and fall good seasons to schedule inspections or pumping. Soil conditions vary across the county, and a licensed professional familiar with local conditions is well positioned to assess system performance accurately.
Septic system permitting and oversight in Montgomery County, Maryland falls primarily under the Montgomery County Department of Permitting Services in coordination with the Maryland Department of the Environment. Any new septic installation, major repair, or system modification typically requires a permit before work begins. At the point of sale, Maryland state law generally requires a septic system inspection for properties with on-site systems, and results can affect the terms of a real estate transaction. Routine pumping by a licensed pumper does not typically require a permit, but any work that alters the system's components usually does. Homeowners can review applicable rules through the county's permitting office and the Maryland Department of the Environment's water and science administration, which publishes guidance on on-site sewage disposal. Always verify current requirements with your local health department.
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