4.7 
51 *The Angi rating for Septic Tank Service companies in Cornwall, NY 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, NY 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 February 20, 2026
Serving Cornwall, NY and surrounding areas
Approved
In business since 1986
Free estimates
Customers say: Quality work
"Very professional in what they do explained detail? through detail in how to maintain septic tank"
Serving Cornwall, NY and surrounding areas
Approved
In business since 2013
Free estimates
Credit card accepted
"Excellent service! Called promptly. Arrived at time specified with crew. Pulled old pump and replaced pressure tank by early afternoon. From first contact to completion of project was less than 24 hours. When you have no water time is important. I’d recommend them."
Serving Cornwall, NY and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Pumped out septic tank. Everything from scheduling to the actual pumping went well. The driver/worker was very knowledgeable about keeping a healthy supply of bacteria and enzymes in the tank."
+11
Serving Cornwall, NY and surrounding areas
Approved
In business since 2021
Free estimates
Customers say: True professional
"S&G septic did fine job. They were on time and very professional .Cant Say enough good things about them."
+29
Serving Cornwall, NY and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Bought a faucet at Lowe's. After looking at the connections for a pedestal sink, I decided to have this one professionally installed. It was a two hour procedure for a professional plumber. Though not a difficult job for a plumber, everything about the job was very professional. Appointment was confirmed. A telephone call was provided giving an update of when the plumber would arrive. Kevin was the name of our plumber. He was very courteous. He covered our floor, wore shoe covers, cleaned up afterwards. He checked the plumbing for leaks and drainage. Contracting the way it should be."
+22
Serving Cornwall, NY and surrounding areas
Approved
In business since 2001
Free estimates
Customers say: Quick response
"Joe helped us design an extension and stairs to our existing composite deck. Our house is in a condo community and we were restricted in the amount of space we were allowed to use. He was creative in figuring out how to get the best design. He and his crew are very professional, courteous and neat. Beautiful work. We love our deck. I would definitely recommend this company."
+59
Serving Cornwall, NY and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"Tommy did a great job installing our new septic tank. Everything was perfectly level and done professionally. Job only took a couple hours and system works perfectly."
Serving Cornwall, NY and surrounding areas
Approved
Free estimates
Credit card accepted
"Had a gas leak in my mechanical room next to my boiler and hot water heater and M.L plumbing came and tested the lines and found the leak and fixed the leaking pipe.Thanks M.L plumbing for job well done and at a very reasonable price👍."
Serving Cornwall, NY and surrounding areas
Approved
In business since 2003
Free estimates
Customers say: Quality work
Since 2003, Lawn In Order Excavating and Landscape Design, has been serving the Middletown area. We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
Serving Cornwall, NY and surrounding areas
Approved
In business since 2015
Free estimates
Offers commercial services
We at DeBella Seal Coating, pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
From average costs to expert advice, get all the answers you need to get your job done.
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.
How deep is a septic tank, and why is it buried? Learn where to place your own septic system as well as how to maintain it and how much it costs.
Septic tank risers make it easy to access your septic tank when it’s time for routine inspection, maintenance, and pumping, saving you precious time and labor costs.
