Top-rated septic tank pros.

Best septic tank pros near Madison, CT

Enter your zip and get matched with up to 5 pros

Need a pro for your septic tank service project in Madison, CT?

Select your specific project to find the pro for you.

TRUSTED BY MADISON, CT HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon130
    Verified septic tank services reviews

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

John H. Bensavage, LLC
4.9(
98
)
Septic System - Install or ReplaceSeptic System - RepairSeptic System - Install or Replace - For Business+1 more

Serving Madison, CT and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Warranties offered

"John Bensavage did an excellent job of repairing my septic system which included replacing the septic tank. To gain access to the tank they had to have five trees removed. John coordinated the tree removal subcontractor as well as removing and replacing the septic tank. He also repaired the broken waste pipe leading to the septic tank. Throughout the whole process every phase of the job was performed on in a timely manner and every delivery of material arrived on site exactly when needed. John's crew was excellent as well, performing each phase efficiently and smoothly while while exercising great care to avoid damaging the adjacent structure. I enjoyed watching how smoothly they worked together. When the job was finished, they expertly restored the surrounding landscape to a condition better than it was before. John kept every promised date and time and accomplished the job exactly when he said he would. I highly recommend John H. Bensavage LLC to anyone in need of septic system repair. And John was the lowest bidder."
Poly Septic tank replacement
Poly septic tank replacement
Response time8 hrs
22 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for H L Bowman
H L Bowman
4.6(
429
)
Septic Tank - Clean or Pump OutSeptic System - Install or ReplaceSeptic System - Repair

Serving Madison, CT and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"Replaced a tank water heater, the door was too narrow so first pitched removing framing with no guarantee that it’d be replaced correctly. I suggested using a smaller sized unit based on a quote from another plumber which is the route we went. They also covered the overage for the additional cost of the smaller sized unit which was nice but if I wasn’t aware of the option I’m not sure what I would have done. They also only sent one person initially so I helped bring the old unit down and the new one up in between trying to work. Also the breaker to the hot water heater was never flipped back so I’m waiting to see how the unit performs now."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

488 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Hazelwood Excavating, Inc.
Hazelwood Excavating, Inc.
5.0(
1
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Madison, CT and surrounding areas

Approved

In business since 1950

Free estimates

Emergency services offered

Hazelwood Excavating, Inc., is a family owned company based out of Wallingford, CT. The company was founded in 1950 and has been passed down through generation after generation. We take extreme pride in the 3 P's fundamental to any good business which are Punctuality, Professionalism, and Precision.

New Septic Tank
Leaching
New Leaching
Response time2 days
Finkeldey Septic - Facebook
4.9(
4
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Madison, CT and surrounding areas

In business since 1979

Free estimates

Credit card accepted

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! \n

Response time5 hrs
Recommended by100%of homeowners
Septicology, LLC
5.0(
3
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Madison, CT and surrounding areas

In business since 2017

Free estimates

Small jobs welcome

"We have been using Septicology for our clients' septic system inspections and certifications for about one year now. Daniel presents a professional demeanor and his detailed reports include complete documentation of testing results including photos of all conditions he is seeing. We are very pleased with Daniel's great services and pricing and will continue using Septicology, LLC."
Response time2 days
Recommended by100%of homeowners
Hawksleys plumbing
5.0(
5
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Madison, CT and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Chris was very professional on time as we had scheduled came in & got the job done as good as I would of expected. He worked within my budget! Definitely will hire again for any plumbing needs. I highly recommend Chris for anyone in need of a plumber. Awesome job!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

Recommended by100%of homeowners
Showing 1-10 of 24
Septic Tanks FAQs, answered by experts

Yes, it is possible to pump a septic tank too frequently. The ideal pumping schedule varies based on the tank's capacity, household size, and water usage. Pumping the septic tank more often than recommended can cause the beneficial bacteria to leach into the drain field, leading to an imbalance and a build-up of solid waste.

A septic system can fail for various reasons, and most commonly, excessive water use or sudden surges in wastewater can overwhelm the system's capacity. Neglecting regular maintenance, like tank pumping and inspections, can also lead to clogs, leaks, and eventual breakdowns. Other issues that lead to failure include age-related wear and tear, root infiltration, improper disposal of non-biodegradable materials or chemicals into the system, unsuitable soil conditions, physical damage, and even environmental factors like flooding or soil erosion.

The best way to keep a septic tank clean is to hire a local septic tank cleaner to inspect and pump the septic tank every three to five years. Be sure to only flush human waste and toilet paper down the toilet, and don’t pour grease, oil, fats, coffee grounds, or food scraps into your drains.

Well water is often assumed to be hard because of its high mineral content. Hard water can lead to mineral build-up in your pipes and appliances. You can manage hard water by installing a whole-house filter system. These systems can help extend the life of your water-reliant appliances like your hot water tank and dishwasher. 

A septic tank is an underground container that collects and holds wastewater until it’s sufficiently filtered and broken down. It treats wastewater by separating waste so the leftover liquid can travel into the drainfield where the soil and gravel eventually filter and purify it. This process naturally eliminates bacteria, viruses, and other contaminants.

The Madison, CT homeowners’ guide to septic tank services

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