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    Average homeowner rating
  • Verified reviews icon109
    Verified septic tank services reviews

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

Avatar for S.H. Dunford Construction & Excavation
S.H. Dunford Construction & Excavation
4.9(
12
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Mashpee, MA and surrounding areas

Approved

In business since 2012

Free estimates

Offers commercial services

We are a locally owned cape cod business, owned and operated by native cape codder Sam Dunford. We have been in business since 2012 providing quality work at a competitive price. From septic systems and excavation, to landscape construction and hardscapes, S.H. Dunford is your one stop shop. Follow us on Facebook! Facebook.com/shdunford

Projects
Projects
Recommended by100%of homeowners
Ruberti Construction, LLC
5.0(
1
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Mashpee, MA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Ruberti Construction LLC 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 time7 hrs
Shay Environmental Services
New to Angi
Septic Tank - Clean or Pump Out

Serving Mashpee, MA and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

We are a locally owned and operated Septic Systems contracting company that values honesty and integrity and treats your home as if it were our own. We offer a vacant and occupied home staging services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

Avatar for A + D CONNECTIONS, LLC
A + D CONNECTIONS, LLC
New to Angi
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Mashpee, MA and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

**With nearly a decade of hands-on experience, A&D Connections has earned a reputation across Massachusetts for reliable, precision-driven excavation work. Proudly veteran-owned and operated, we bring discipline, integrity, and craftsmanship to every project — from septic system swaps and water main connections to full-scale excavation and site prep. Our team is dedicated to doing the job right the first time, with safety and efficiency at the core of everything we do. Whether it’s a residential or light commercial project, we deliver clean, professional results that stand the test of time. At A&D Connections, we’re not just moving earth — we’re building strong foundations for our clients and our community. Reliable. Honest. Mission-ready — that’s the A&D difference.** \n

Septic Install
Response time40 mins
Response rate100%
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Septic Tanks FAQs, answered by experts

The lifespan of your well casing depends mainly on the material it’s made from. Stainless steel and galvanized steel casings are designed to withstand the pressures and environment of deep-water wells but are susceptible to corrosion. Most steel casings last from 20 to 35 years, on average. PVC casing is highly durable and, if used correctly, can last up to 50 years.

Leach lines are commonly made of PVC pipe, and they’re placed into trenches filled with gravel and sand, which help treat the wastewater. The PVC pipes are perforated, or drilled with small holes, so the wastewater can drain out of the pipes and into the surrounding material, which eventually leads to the aquifer.

A household of four can easily fill a 1,000-gallon septic tank within a week. It may be 10 to 14 days for smaller households. But the reason why you don't need weekly pumping is because the tank's contents eventually reach the overflow pipe. They flow down this pipe to the absorption area whenever water is used in your home. The tank keeps working at this full level until it's pumped again.

The water refills in a well through gravity that draws water from the water table to fill the vertical hole. The pump brings the fresh water through a pressure tank and to the pipes in your house. The well continues to refill indefinitely as long as you don’t use more water than the well is producing.

Yes, septic tank companies must be licensed in most states and municipalities to perform services like installation, alteration, repair, and pumping. Since laws vary by location, it's crucial to check local requirements.

Hiring an unlicensed professional can lead to poor work, code violations, and significant fines. Always verify that your chosen company is properly licensed and fully insured to avoid liability. You can use tools like Angi’s contractor licensing search to check a pro's credentials.

It's also helpful to understand the difference between licensing and certification. A license is a legal requirement to operate, while certifications are voluntary. Credentials like the “Angi Approved” badge indicate that a business meets extra standards, such as passing a background check and maintaining a high rating.

The Mashpee, MA homeowners’ guide to septic tank services

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