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Find Septic system installers and replacers in Gaithersburg

Nando Fire Protection & Plumbing
New to Angi

Angi Approved

In business since 2013

Free estimates

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

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Avatar for Pohlman Plumbing Inc
Pohlman Plumbing Inc
4.6(
38
)

Angi Approved

In business since 2008

Free estimates

Emergency services offered

"The gentleman that work this business go above and beyond to make the best suggestions for they work required. This is the second time I have hired them. My sub pump went after and more rain was coming they came out with 2 hours to fix the problem. Extremely professional man. I will be er use any other plumbing business other than Pohlman. I highly recommend if you have a plumping issue."
Recommended by86%of homeowners
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CROWN PLUMBING HEATING DRAIN CLEANING & GAS-FIT
4.5(
11
)

In business since 1995

Emergency services offered

Warranties offered

4 EMPLOYEES. NO SUBS. COST DETERMINED BY THE JOB. NO TRAVEL CHARGES. EXTRA CHARGE FOR AFTER-HOURS SERVICE MAY APPLY. LICENSE NUMBER: 41104. MAY CONTACT THROUGH EMAIL.

Recommended by81%of homeowners
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M² BUILDING AND DESIGN
New to Angi

Free estimates

Emergency services offered

Warranties offered

MASTER BUILDER, FINISH CARPENTER

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Avatar for ALL CLEAR PLUMBING
ALL CLEAR PLUMBING
4.4(
15
)

In business since 2000

Emergency services offered

"Two-person crew arrived on time Tuesday, June 28. Attempted to clear the obstruction for 15 minutes, but they failed. Crew said they would contact my home warranty company to see if my coverage allowed a replacement. Crew said they'd get back to me in 3-4 hours. Didn't happen. Tuesday afternoon and evening, no call. Wednesday, no call. Thursday, no call. Friday, I left a message in the early morning -- no return call. I called again Friday afternoon at 3:30 p.m. Dispatcher said all technicians were unavailable until NEXT Tuesday (July 5). One week with the problem unresolved is not optimal."
Recommended by93%of homeowners
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Avatar for Chamberlin-Washington Inc.
Chamberlin-Washington Inc.
5.0(
12
)

In business since 1898

Free estimates

CHAMBERLIN-WASHINGTON INC., Your CAULKING & WATERPROOFING SPECIALISTS. Serving you since 1898, Chamberlin-Washington Inc. has grown into an established company, Accredited with BBB (Better Business Bureau), Licensed, Bonded, and Insured. Our Mission is: To provided high quality services and complete satisfaction to our valued customers and business partners.

Recommended by100%of homeowners
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FAQs for septic system installation and replacement projects in Gaithersburg, MD

The smallest standard septic system uses a 500-gallon tank, which costs between $875 and $1,150 installed. This size works well for single-occupant dwellings with minimal wastewater production. However, many local regulations specify minimum tank sizes, so check with your building department before committing to this compact option. Some jurisdictions require at least 750 gallons regardless of home size to ensure adequate waste processing capacity.

The installation timeline varies based on site conditions, permit processing, and contractor schedules. The process includes obtaining permits, conducting soil tests, excavation, tank placement, leach field construction, and final connections. Weather conditions, soil challenges, and inspection scheduling can all affect the overall timeline. It's wise to begin planning well in advance of when you need the system operational.

The most economical approach is to install a conventional anaerobic system with a plastic tank. To minimize costs while maintaining legality, obtain multiple quotes from licensed installers, consider scheduling during their slower seasons, and handle basic site preparation yourself. Never skip permits or required testing to save money—illegal installations can result in significant fines and mandatory removal, ultimately costing far more than doing it right initially.

Regular pumping helps prevent system failures and extends operational life. Most small systems require pumping every three to five years, though frequency depends on household size and usage patterns. Pumping services cost between $290 and $530, making this maintenance expense relatively minor compared to potential repair costs ranging from $500 to $2,600 for neglected systems. Establishing a regular maintenance schedule based on your installer's recommendations helps avoid costly emergency services.

The Gaithersburg, MD homeowners’ guide to septic system installations and replacements

From average costs to expert advice, get all the answers you need to get your job done.

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