4.8 
22 *The Angi rating for Septic Tank Service companies in Cornwall, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.
*The HomeAdvisor rating for Septic Tank Service companies in Cornwall, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.
Last update on March 21, 2026
Serving Cornwall, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Free estimates
Emergency services offered
"seeded damaged lawn where septic tank was uncovered and applied straw to protect the new seed."
Serving Cornwall, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2004
Free estimates
Warranties offered
"Steve is very knowledgeable and efficient on the installation of a new septic with pump. He cares about how he leaves the landscape when he is done and greatly improved how things were before. Not to mention the best price we received."
+97
Serving Cornwall, CT and surrounding areas
Approved
Super Service Award Winner
In business since 1995
Free estimates
Warranties offered
"Total professionals from beginning to end. We had to have our septic tank replaced quickly because we sold our house. They did an awesome job and I would highly recommend them."
Serving Cornwall, CT and surrounding areas
In business since 2012
Free estimates
Emergency services offered
We offer all phases of Sewer & Drain Cleaning for Commercial & Residential Customers.Video inspection & locating service. Free Estimates. We offer a monthy coupons, We except cash, checks and Credit Cards. We can set up a bill out for certain customers. All work comes with a written Guarantee, Same day service,
+3
Serving Cornwall, CT and surrounding areas
In business since 2005
Free estimates
Emergency services offered
"Josh is a professional and has extensive experience in septic install. Our install wasnâ t easy but he got it done. Highly recommend!"
Serving Cornwall, CT and surrounding areas
In business since 2008
Emergency services offered
Credit card accepted
"Well. Only problem was delay in response time after claim was filed online. Water tank started leaking Thanksgiving morning and no reply until I called the Regional Manager."
Serving Cornwall, CT and surrounding areas
In business since 1971
Credit card accepted
"I think their coverage is a little spotty. You have to look at the document very carefully. It seems random to me. I reported a problem once and once I used the word "septic" they wouldn't cover it. Another time I didn't say it and then they covered it. You have to be really careful about how you phrase things."
+2
Serving Cornwall, CT and surrounding areas
In business since 2010
Free estimates
Warranties offered
Sewer and water installation and repair \nSeptic repair and new systems call us we have the best prices and service.. give us a call you will be glad you did., we have installed over 400 septic systems in Ct \nSeptic design..
+10
Serving Cornwall, CT and surrounding areas
In business since 2024
Free estimates
Offers commercial services
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. Call us today.\n
Serving Cornwall, CT and surrounding areas
In business since 1999
Free estimates
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. 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.
From average costs to expert advice, get all the answers you need to get your job done.
A damaged septic system can leak odors and sewage, so repairs are urgent. Find out how much septic tank repair costs based on repair type, tank size, and more.
If it’s been there for a while, it can be hard to find the septic tank in your yard. Learn how much it costs to locate a septic tank with this guide.
It’s crucial to install a septic tank with the right volume to avoid wastewater backups. This guide will help you calculate the right septic tank volume.
Septic tank sizes vary depending on the size of your home, how many people live there, how much water you use, and more. Read on to learn how to determine the right size for you.
If you’ve never lived in a house with a septic system before, you might be wondering: Are septic tanks bad? Here are some of the pros and cons.
Want to learn how to build a septic tank for your rural or off-grid property? First, check your local laws, then dive into these general guidelines.
