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Find Septic system installers and replacers in Washington DC

Avatar for R&E CHIEF SEPTIC LLC
R&E CHIEF SEPTIC LLC
4.94(
104
)

Angi Approved

In business since 2002

Free estimates

Emergency services offered

"I got a call from R & E Chief Septic llc after contacting Angi’s List, they asked if I knew the location of the tank and I said yes but it was buried, the woman on the line said they would get the drawings from the county, that same day I got a call from Juan one of the employees and he said he was going to stop buy and mark the location, I was not home but when I got home I could see white flags in the yard. They also recommended installing an above ground cover for the next pump out. I got 2 more estimates and they were all higher and neither company offered to come out and mark the tank. We went with R & E Chief because of the great up front customer service. Need to give a shout out to Juan, Fredy and Paco they did an excellent job. And also the woman who answered the phone. So if you need septic work done, put this company at the top of your list. Ron Welch"
Recommended by96%of homeowners
CROWN PLUMBING HEATING DRAIN CLEANING & GAS-FIT
4.55(
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
M² BUILDING AND DESIGN
New to Angi

Free estimates

Emergency services offered

Warranties offered

MASTER BUILDER, FINISH CARPENTER

Avatar for Chamberlin-Washington Inc.
Chamberlin-Washington Inc.
5.00(
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
Avatar for National Water Service Corp
National Water Service Corp
4.61(
104
)

In business since 1979

Free estimates

Emergency services offered

"Pitless adapter replacement."
Recommended by92%of homeowners
S. M. Fenlon Plumbing & Heating Inc
4.70(
10
)

In business since 1981

Free estimates

We are a family-owned, licensed, insured, and bonded plumbing business serving the D.C. and Maryland areas for over 30 years. We specialize in residential and commercial remodeling as well as boiler servicing.

Recommended by90%of homeowners
Avatar for Deska Foundation Repair and Basement Waterproofing
Deska Foundation Repair and Basement Waterproofing
4.84(
37
)

In business since 2012

Free estimates

"My wife and I reached out to several waterproofing/foundation repair companies and ultimately went with Deska as Dave, the on-site estimator, was the most knowledgeable, honest, and efficient when assessing our basement’s water damage. We were NOT disappointed with the quality of work. Ronald and Andy showed up on time the morning of the project after giving a heads up call ~30 minutes out. They introduced themselves and explained the project scope confirming everything Dave had itemized on the project invoice before starting any work. I poked my head in the backyard a couple of times throughout the day to see if either of them needed anything, and Ronald always took a break to explain how the work was going. He took progress pictures and answered the exhaustive questions I threw his way as this was the first waterproofing project for me. The second/last day of the project prior to finishing up, Ronald and Andy gave my wife and I an overview of everything they had done and even insisted on returning the paver stones back to their original positions since we had those dug out when calling various contractors over for their estimates. A nice little personable touch! Thank you Dave and especially Ronald and Andy for your exceptional work and professionalism during the two days. Although it’s unfortunately a premium to find trustworthy contractors especially in the waterproofing/foundation repair space, I would HIGHLY RECOMMEND these gentlemen to take care of any of your waterproofing/foundation repair needs."
Recommended by97%of homeowners
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FAQs for septic system installation and replacement projects in Washington DC, DC

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 Washington DC, DC 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.