Top-rated septic tank pros.

Get matched with top septic tank pros in Rockville, MD

There are 5 highly-rated local septic tank pros.

Need a pro for your septic tank service project in Rockville, MD?

Select your specific project to find the pro for you.

TRUSTED BY ROCKVILLE, MD HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon52
    Verified septic tank services reviews

Find Septic tank pros in Rockville

Avatar for Douglas & Son Services

Douglas & Son Services

4.78(
18
)
Approved Pro

Douglas & Son Services

4.78(
18
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
31 local quotes requested

Douglas Plumbing, Heating & Air Conditioning, LLC, a Maryland limited liability company, trading as Douglas & Son Services (hereinafter referred to as “Douglas & Son Services”) specializes in, but is not limited to, providing residential and light commercial plumbing, gas, heating and air conditioning services in Washington, D.C., Maryland and Virginia

"They are very informed about systems throughout the house and are active educators for their clients for MAINTENANCE and saving money! The family owned business is impressive, as their son is ALREADY a JOURNEYMAN in both plumbing and I believe soon to be HVAC expert as well. They are serious about their knowledge and offerings. - Erin Fussell"

Erin L on January 2025

Douglas Plumbing, Heating & Air Conditioning, LLC, a Maryland limited liability company, trading as Douglas & Son Services (hereinafter referred to as “Douglas & Son Services”) specializes in, but is not limited to, providing residential and light commercial plumbing, gas, heating and air conditioning services in Washington, D.C., Maryland and Virginia

"They are very informed about systems throughout the house and are active educators for their clients for MAINTENANCE and saving money! The family owned business is impressive, as their son is ALREADY a JOURNEYMAN in both plumbing and I believe soon to be HVAC expert as well. They are serious about their knowledge and offerings. - Erin Fussell"

Erin L on January 2025


Avatar for Len The Plumber Heating & Air, LLC

Len The Plumber Heating & Air, LLC

3.90(
650
)
Approved Pro

Len The Plumber Heating & Air, LLC

3.90(
650
)
Approved Pro
Customers say: Super punctual
574 local quotes requested
29 years of experience

Len The Plumber, LLC. is a leading plumbing and drain company serving Maryland and Washington D.C. Our certified professional plumbers are available same day to assist residential customers in Charles County, Montgomery County, Prince George’s County, and Washington D.C. Our knowledgeable plumbers have years of experience dealing with a wide variety of plumbing issues including plumbing repairs, drain cleaning, water heaters, well systems, heating systems, sewer, water, and gas lines. We’re open 7 days a week with no extra charge on evenings or weekends!

"Tried to schedule a routine maintenance appointment available to customers who signed up for service plans, but Len could not follow through with their commitment three failed/rescheduled appointments in a row!! Each required four hour commitments from the customer. I tried to communicate with dispatch and customer service but unfortunately I don’t think these two departments have an open line of communication between them. I would not recommend for anyone to work with or engage with this company. Len did not follow through on their half of the commitment and disrespected my time as an in office working professional."

Kayla B on July 2025

Len The Plumber, LLC. is a leading plumbing and drain company serving Maryland and Washington D.C. Our certified professional plumbers are available same day to assist residential customers in Charles County, Montgomery County, Prince George’s County, and Washington D.C. Our knowledgeable plumbers have years of experience dealing with a wide variety of plumbing issues including plumbing repairs, drain cleaning, water heaters, well systems, heating systems, sewer, water, and gas lines. We’re open 7 days a week with no extra charge on evenings or weekends!

"Tried to schedule a routine maintenance appointment available to customers who signed up for service plans, but Len could not follow through with their commitment three failed/rescheduled appointments in a row!! Each required four hour commitments from the customer. I tried to communicate with dispatch and customer service but unfortunately I don’t think these two departments have an open line of communication between them. I would not recommend for anyone to work with or engage with this company. Len did not follow through on their half of the commitment and disrespected my time as an in office working professional."

Kayla B on July 2025


Avatar for Sila Heating, Cooling and Plumbing

Sila Heating, Cooling and Plumbing

4.64(
2,119
)
Approved Pro

Sila Heating, Cooling and Plumbing

4.64(
2,119
)
Approved Pro
Customers say: Super punctual
624 local quotes requested
36 years of experience

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"They charged $98 to come give me an estimate for swapping our a shower valve cartridge, which was fine, but the pricing they provided was completely unreasonable, $1,000. They were unwilling to provide any detail for the price. I ended up buy the part myself for $30 and replaced it in 30 minutes."

Tom A on October 2024

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"They charged $98 to come give me an estimate for swapping our a shower valve cartridge, which was fine, but the pricing they provided was completely unreasonable, $1,000. They were unwilling to provide any detail for the price. I ended up buy the part myself for $30 and replaced it in 30 minutes."

Tom A on October 2024


Avatar for Roto-Rooter Plumbing & Water Cleanup

Roto-Rooter Plumbing & Water Cleanup

4.24(
639
)
Approved Pro

Roto-Rooter Plumbing & Water Cleanup

4.24(
639
)
Approved Pro
Customers say: Quick response
356 local quotes requested
90 years of experience

When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

"They wanted $542 just to install a basic kitchen faucet! Ridiculous!"

Stephen T on November 2024

When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

"They wanted $542 just to install a basic kitchen faucet! Ridiculous!"

Stephen T on November 2024


Avatar for Pohlman Plumbing Inc

Pohlman Plumbing Inc

4.63(
38
)
Approved Pro

Pohlman Plumbing Inc

4.63(
38
)
Approved Pro
Customers say: Quick response
17 years of experience
Free onsite estimate

Pohlman Plumbing is a local, family-owned and -operated full-service plumbing and HVAC company serving the Baltimore metro area. Founded in 2008, our professional and friendly customer service plus our top-notch skills have made us one of the most trusted local plumbers in Baltimore. When you choose to work with Pohlman Plumbing, you can have peace of mind knowing we always stand by the Pohlman Promise: fast service, at a fair price, and done right the first time.

"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."

Georgette T on January 2024

Pohlman Plumbing is a local, family-owned and -operated full-service plumbing and HVAC company serving the Baltimore metro area. Founded in 2008, our professional and friendly customer service plus our top-notch skills have made us one of the most trusted local plumbers in Baltimore. When you choose to work with Pohlman Plumbing, you can have peace of mind knowing we always stand by the Pohlman Promise: fast service, at a fair price, and done right the first time.

"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."

Georgette T on January 2024


Harley Drilling & Hydrofrac

5.00(
1
)
Approved Pro

Harley Drilling & Hydrofrac

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 years of experience

Harley Drilling & Hydrofrac is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"For all the years we have used him he has been excellent, very responsive, and I've never had any issues with him!"

ASM B on April 2020

Harley Drilling & Hydrofrac is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"For all the years we have used him he has been excellent, very responsive, and I've never had any issues with him!"

ASM B on April 2020


Able Well & Pump Service

4.46(
151
)
Approved Pro

Able Well & Pump Service

4.46(
151
)
Approved Pro
Customers say: Quality work
57 local quotes requested
34 years of experience

About Us: We are locally owned/operated professionals providing dependable service. Able Well & Pump Service (AWPS) (formerly Artesian Well & Pump Service) has A Cell Number Also At 410 458 7171

"Able Well helped me perform a chemical treatment of my home well after it failed a bacteria test. They also replaced and rewired the well cap. They were knowledgeable about the system and taught me a lot of great info about my home system. The reason for 1-star is the complete lack of punctuality. They were 5 hours late on the first day and 4 hours late on the second date. No one ever reached out to me to let me know they would be late or communicated a need to change the time of the appointment. For how expensive the service was, I would expect better communication and ability to keep an appointment. I'd recommend shocking your well yourself, it isn't hard, and spending almost 10 hours waiting on arrival was a hard way to spend my day."

Colleen W on June 2025

About Us: We are locally owned/operated professionals providing dependable service. Able Well & Pump Service (AWPS) (formerly Artesian Well & Pump Service) has A Cell Number Also At 410 458 7171

"Able Well helped me perform a chemical treatment of my home well after it failed a bacteria test. They also replaced and rewired the well cap. They were knowledgeable about the system and taught me a lot of great info about my home system. The reason for 1-star is the complete lack of punctuality. They were 5 hours late on the first day and 4 hours late on the second date. No one ever reached out to me to let me know they would be late or communicated a need to change the time of the appointment. For how expensive the service was, I would expect better communication and ability to keep an appointment. I'd recommend shocking your well yourself, it isn't hard, and spending almost 10 hours waiting on arrival was a hard way to spend my day."

Colleen W on June 2025


Avatar for Mr. Rooter of Maryland

Mr. Rooter of Maryland

4.47(
911
)
Approved Pro

Mr. Rooter of Maryland

4.47(
911
)
Approved Pro
Customers say: Super punctual
1214 local quotes requested
57 years of experience

Dealing with a busted toilet? Can't seem to unclog that drain? It's time to call on your local Mr. Rooter® Plumbing. Since 1968 our full service residential and commercial plumbers have been available around-the-clock to tackle your plumbing service needs! We never charge extra, always stand behind our work, and provide upfront pricing so you know exactly what you are paying for ahead of time. You can count on our plumbers to deliver fast, affordable, and reliable plumbing services throughout the state of Maryland. Call us today, we look forward to serving you for years to come!

"Came out same day and was able to fix the pipe very quickly and explained everything clearly"

Matt W on November 2025

Dealing with a busted toilet? Can't seem to unclog that drain? It's time to call on your local Mr. Rooter® Plumbing. Since 1968 our full service residential and commercial plumbers have been available around-the-clock to tackle your plumbing service needs! We never charge extra, always stand behind our work, and provide upfront pricing so you know exactly what you are paying for ahead of time. You can count on our plumbers to deliver fast, affordable, and reliable plumbing services throughout the state of Maryland. Call us today, we look forward to serving you for years to come!

"Came out same day and was able to fix the pipe very quickly and explained everything clearly"

Matt W on November 2025


Avatar for Beacon Home Services, Inc.

Beacon Home Services, Inc.

4.65(
837
)
Approved Pro

Beacon Home Services, Inc.

4.65(
837
)
Approved Pro
Customers say: True professional
1822 local quotes requested
23 years of experience

Beacon Home Services is a family owned and operated electrical & plumbing contractor. Our experienced plumbers & electricians have been providing superior services to the Northern Virginia Area since 2002. Our Master technicians are fully licensed and have more than enough experience to insure your satisfaction with our services. We have proven our ability to satisfy customers by reinventing the service industry and putting customer service at the top of our list! Customer safety is also very important to Beacon Home Services. That's why all our employees have gone through background checks so you can be sure that you're in good hands with Beacon Home Services.

"Beacon Hone Services repairman patiently dealt with the stubborn shower valve. They provided options to solve the leaky shower valve and identified other possible issues with the plumbing of the shower. In summary they properly got the job done."

Rafael Z on November 2025

Beacon Home Services is a family owned and operated electrical & plumbing contractor. Our experienced plumbers & electricians have been providing superior services to the Northern Virginia Area since 2002. Our Master technicians are fully licensed and have more than enough experience to insure your satisfaction with our services. We have proven our ability to satisfy customers by reinventing the service industry and putting customer service at the top of our list! Customer safety is also very important to Beacon Home Services. That's why all our employees have gone through background checks so you can be sure that you're in good hands with Beacon Home Services.

"Beacon Hone Services repairman patiently dealt with the stubborn shower valve. They provided options to solve the leaky shower valve and identified other possible issues with the plumbing of the shower. In summary they properly got the job done."

Rafael Z on November 2025


Avatar for Atlantic Blue Water Services

Atlantic Blue Water Services

4.88(
4
)
Approved Pro

Atlantic Blue Water Services

4.88(
4
)
Approved Pro
Customers say: Quick response
303 local quotes requested
4 years of experience

Averaging a 4.8-star rating across all review platforms, client satisfaction is our #1 priority! Atlantic Blue Water Services provides the highest quality and most specialized home water treatment systems in today's market. We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Don't settle for anything less than the best for your home or business. Experience the difference with Atlantic Blue Water Services. Contact us now for a free, no-obligation water test and discover why we are the preferred choice for clean water solutions in Maryland. Our experienced team is ready to answer your questions and guide you toward the best water solution for your home or business. We invite you to trust us with your water needs! Water Testing - Water Treatment - Water Softening - Well Water - City Water - Well Pumps - Tanks

"Very punctual and upfront - came and left was very pleased"

Sean G on November 2024

Averaging a 4.8-star rating across all review platforms, client satisfaction is our #1 priority! Atlantic Blue Water Services provides the highest quality and most specialized home water treatment systems in today's market. We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Don't settle for anything less than the best for your home or business. Experience the difference with Atlantic Blue Water Services. Contact us now for a free, no-obligation water test and discover why we are the preferred choice for clean water solutions in Maryland. Our experienced team is ready to answer your questions and guide you toward the best water solution for your home or business. We invite you to trust us with your water needs! Water Testing - Water Treatment - Water Softening - Well Water - City Water - Well Pumps - Tanks

"Very punctual and upfront - came and left was very pleased"

Sean G on November 2024

...
Showing 1-10 of 87
Septic Tanks questions, answered by experts

With so much available information about the ecological effects of cesspools (and their general unpleasantness), it begs the question: Are cesspools legal? In short, sort of. Large-capacity cesspools that serve more than 20 people are completely illegal countrywide. Existing, smaller cesspools are generally allowed as long as they’re not actively polluting. However, new cesspools are illegal to build in all 50 states and Puerto Rico, and many states offer programs to help homeowners with the costs of updating cesspools to modern septic systems.

Septic tank lids may or may not be buried in a yard. Most lids are buried at least 4 inches deep unless you have an aerobic septic system. Aerobic septic systems need frequent cleanings, about every four months, so it’s best to leave these lids aboveground for easier access. For buried lids, homeowners can use risers that make it easier to locate and access a buried septic tank lid.

Cesspools can last up to 40 years. Their lifespan depends on the materials used, soil conditions, and maintenance of the pit. In many areas, cesspools are no longer permitted, so it’s often a good idea to get rid of a cesspool that’s at the end of its lifespan.

How often you need to pump your tank depends on the size of your tank and how many people live in your home. The average recommended frequency is every three to five years. However, your tank may need more or less frequent pumpings than that. For example, a single person with a 1,000-gallon septic tank may only need to pump it every nine to 12 years, while a five-person family with the same sized tank may need to pump it every two to four years.

Baking soda can help neutralize a septic smell. If the pH balance inside your tank is off, it can emit a sulfurous odor that resembles rotten eggs. Pour one cup of baking soda down your toilet once a week to help neutralize your septic tank. If you want to increase the bacteria in your septic tank, add three rotten tomatoes to your septic tank through your garbage disposal. You can do this once every three months.

The Rockville, MD homeowners’ guide to septic tank services

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

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"