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TRUSTED BY LAWRENCE, MA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon32
    Verified septic tank services reviews

Top-Rated Septic tank pros in Lawrence - Updated Nov 2026

Avatar for Schofield Environmental
Schofield Environmental
4.2(
9
)
Septic System - Install or Replace

Serving Lawrence, MA and surrounding areas

Approved

In business since 1999

Free estimates

Credit card accepted

"By Andrew v. Engineer Dave Schofield of Capstone displayed professionalism by turning a flawed design for our Sudbury septic system into one highly adaptive and functional. He was purposeful about doing the right thing even when not winning installation contract, execution of which he in in fact supervised. In a business which includes its share of uneven performers, Schofield’s competence is a stand-out."
Response time4 hrs
Response rate100%
Recommended by55%of homeowners
Roadway Excavators Inc.
5.0(
2
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Lawrence, MA and surrounding areas

Approved

In business since 1996

Free estimates

Offers commercial services

Roadway Excavators Inc. 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

Response time6 hrs
11 neighbors recently requested a quote
Recommended by100%of homeowners
TDM Plumbing, Corp.
New to Angi
Septic System - Repair

Serving Lawrence, MA and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order 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.

Avatar for Holliston Sewer Service Inc
Holliston Sewer Service Inc
4.9(
68
)
Septic Tank - Clean or Pump Out

Serving Lawrence, MA and surrounding areas

In business since 1954

Emergency services offered

Credit card accepted

"Matt from Holliston Sewer Service was right on time. Located and dug out our tank, pumped it out, oriented me to the system (first time we've had the system pumped since moving to house), restored ground above tank hatch neatly, and provided helpful guidance about how often to have it pumped in the future. Good service - we'll use them again."
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+1

Recommended by96%of homeowners
Avatar for Primos LLC
Primos LLC
5.0(
8
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Lawrence, MA and surrounding areas

In business since 2010

Free estimates

Emergency services offered

Primos offers Commercial/Residential Concrete patios/driveways/stamped and decorative, Asphalt Paving/Sealcoating, Paver Patios and Retaining Walls. We also offer excavating and drainage, plus sewer line replacements. \nWe will offer the best price with fast, reliable, and professional service. Our customers are our number 1 priority. We listen to exactly what you looking for and we will make sure you are happy before we leave.\n

Recommended by100%of homeowners
Papken Mechanical Services, LLC
4.8(
5
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair

Serving Lawrence, MA and surrounding areas

In business since 2021

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order 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.

Tankless water heater
High Efficiency HVAC unit
Electric WH Installation
Recommended by100%of homeowners
SJ GORDON INC
4.6(
9
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Lawrence, MA and surrounding areas

In business since 1983

Free estimates

Emergency services offered

We are experienced, dedicated professionals for all of your plumbing, water and sewer line replacements, and more. SJ Gordon's Inc guarantees your satisfaction! We won’t leave until the job is done right. Call or message us to schedule a free estimate today! COST IS DETERMINED BY THE JOB.

Recommended by100%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Lawrence, MA and surrounding areas

In business since 1971

Credit card accepted

"I just pay $75 you never know who's going to come out. They do everything electrical. Just about everything is covered except the septic tank. I had an air conditioner replaced. It went great, all I had to do was pay for the freon. He didn't charge e more than what was needed."
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+2

Recommended by65%of homeowners
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Septic Tanks FAQs, answered by experts

With proper maintenance, most types of septic systems—including mound, evapotranspiration, and constructed wetland systems—can last up to 40 years. To keep your system running as long as possible, follow basic septic tank upkeep guidelines, like pumping your septic tank every three to five years and only flushing human waste and toilet paper.

Yes, you can adjust your well pump pressure relatively easily by yourself. You’ll need to remove the cover from your pressure switch and adjust a nut that controls cut-in pressure. Learn more about how to adjust a well pump pressure switch with a step-by-step guide to setting your water pressure.

You should pump your septic tank once every two to four years for a family of four, depending on your septic tank size. You should pump a 1,000-gallon septic tank every two years, while a 1,500-gallon tank should be pumped every four years. Water usage also affects how often you should pump your septic tank. If you notice slow drains, foul smells, or gurgling sounds from your drains, you should pump your septic tank as soon as possible.

Septic tanks naturally have bacteria that break down some of the solid waste in the septic tank. However, sludge buildup is just part of owning a septic system. While liquid wastewater can be filtered and treated through the system, a septic tank company has to pump the septic tank out at least every few years.

The pressure in a well pressure tank should be set 2 to 3 PSI below the pump's cut-on pressure. The cut-on pressure is the lower number in the pressure setting (e.g., the '30' in 30/50 PSI) and is the point at which the pump starts. The cut-out pressure is the higher number, where the pump stops.

For example:

  • If your pressure switch is set to 30/50 PSI, the tank pressure should be 27-28 PSI.

  • If your pressure switch is set to 40/60 PSI, the tank pressure should be 38 PSI.

Common pressure settings for household applications include 20/40, 30/50, and 40/60 PSI. The difference between the cut-on and cut-out pressure is typically 20 PSI.

The Lawrence, MA homeowners’ guide to septic tank services

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