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Top-Rated Septic tank and well pros in Derby - Updated Nov 2026

Avatar for Septic Masters of CT
Septic Masters of CT
4.8(
100
)
Septic System - Install or ReplaceSeptic System - RepairSeptic System - Install or Replace - For Business+1 more

Serving Derby, 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."
Septic installations
Septic installations
Demo
Demo
Demo

+97

Response time12 hrs
2 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Luis Septic Services, LLC
Luis Septic Services, LLC
4.9(
48
)
Septic Tank - Clean or Pump Out

Serving Derby, CT and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Emergency services offered

Warranties offered

"Luis Septic Service agreed to replace our septic ejection pump and tank alarm with the pump and alarm switch I had purchased. As we tested together we agreed that the Alarm switch or circuitry was the reason the alarm had triggered and not because the tank had overflowed. I elected to replace the pump as the old one was 7 yrs old. We worked together and completed the project successfully ... $500"
Response time4 hrs
Response rate90%
14 neighbors recently requested a quote
John H. Bensavage, LLC
4.9(
98
)
Septic System - Install or ReplaceSeptic System - RepairSeptic System - Install or Replace - For Business+1 more

Serving Derby, 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."
Poly Septic tank replacement
Poly septic tank replacement
Response time8 hrs
22 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Superior Water and Radon Systems, LLC
Superior Water and Radon Systems, LLC
4.6(
75
)
Well Pump - Repair or Service

Serving Derby, CT and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Tom arrived within an hour of my early morning "no water" emergency. He immediately assessed the job and began the repair. All of the parts needed were on his truck. He explained everything that he was doing as he inspected and repaired/replaced each item. The old tank and any garbage were removed from my property, and the work area cleaned up within three hours of his arrival. I had potable hot water for my family that same morning. I wish that I could give this company more than five stars. They were prompt, professional, and reasonably priced. Superior gets my highest recommendation and I would call them again should I have any future problems with my well system."
New Sump Pump Job.
Bubble Up Radon Water System
VIQUA ARROS 9 GPM Ultraviolet Light
VIQUA ARROS UV, Double Tank Water Softener, PH
NEW 119 Gallon WELL RITE TANK

+63

Response time11 hrs
Recommended by97%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+2 more

Serving Derby, CT and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"They were very fast to respond to my call and were able to send someone within two hours. The replacement of the hot water heater went well. For the water pipes they use copper crimp fittings instead of soldering so it will be interesting to see how that holds up over the years. My only concern is how they ran the gas line. They use Gastite CSST which is fine, but the CSST is run so it goes downward then back up and then downward again before it enters black pipe that has a moisture trap. It seems to me that if there is any moisture it will end up in the CSST instead of the trap. In addition, there is a pretty good bend in the CSST right before it goes into the trap section. Also, Teflon tape was used on the all the joints instead of joint compound. I think I will get someone from a different company to come in and take a look at it."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

488 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Eastern Water Development Co.
Eastern Water Development Co.
4.3(
64
)
Well Pump - Repair or ServiceWell Pump - Install or Replace

Serving Derby, CT and surrounding areas

Approved

In business since 1966

Free estimates

Emergency services offered

"They were quick, efficient, friendly and they did a great job. Terry, our service tech was a pleasure to work with. I wish I would get away with paying less for plumbing disasters but at least they didn't clean me out like some plumbers have! Thanks!"
Hydraulic Fracturing
Effects of Low pH
Casing extension
Casing extension
Casing extension

+6

Response time2 days
20 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for CT Radon & Well Water Solutions
CT Radon & Well Water Solutions
4.7(
82
)
Well Pump - Install or ReplaceWell Pump - Repair or Service

Serving Derby, CT and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Connecticut Basement installed our Radon System 5 years ago and did a fantastic job so we hired them to install our new water softner. During the install it was discovered and verified by me that the well pump was defective (19 years old) and they managed to do all the work plus the well pump in the same day. Without the well pump we could have gone days without water. They were here at our house for 9 hours. Super service!!"
Radon Mitigation
water softening system
Working in well pit
Old pump vs new pump
Close up of old pump

+3

Response time8 hrs
Response rate93%
39 neighbors recently requested a quote
Avatar for Mosman Wellworks, LLC
Mosman Wellworks, LLC
4.8(
11
)
Well Pump - Repair or Service

Serving Derby, CT and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"Mosman Wellworks responded very quickly to my call. My well pump went out in the middle of the night in a huge snow storm. I had no water so this was an emergency situation. No other company I called answered their phone except for Eric. He came out right away and did an excellent job servicing my well pump. Even in an emergency situation his prices were very affordable. Nice guy, excellent customer service."
Response time4 hrs
Recommended by100%of homeowners
Avatar for JP Martin Building Co, Inc.
JP Martin Building Co, Inc.
5.0(
9
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Derby, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"DEFINITELY RECOMMEND! Joe and Denise are very nice and easy to talk to. They listen to what you need and made sure you understand the plan before they do anything. We asked for extra work and are very accommodating. With regards to work itself, they took their time to do it right. With us, we had a last minute change of septic tank size and Joe was so nice to accomodate us. They did an excellent job with our septic system and will definitely recommend them. We also feel like we gain a friend!"
Patio on Hudson (AFTER)
Rock Garden (After)
Backyard Oasis in Stamford (After)
Rain Wall
Rain Wall

+39

Response time3 hrs
Recommended by100%of homeowners
...
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