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TRUSTED BY DERBY, CT HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon201
    Verified septic tank services reviews

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

Avatar for Septic Masters of CT
Septic Masters of CT
4.8(
100
)
Septic System - RepairSeptic System - Install or ReplaceSeptic 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

"He did an excellent job replacing our septic tank. He solved a difficult problem with a huge boulder that was blocking the move of the tank. Also was very careful not to damage the rest of the yard during installation. Overall, job well done. Quality job at a fair price."
Septic installations
Septic installations
Demo
Demo
Demo

+97

Response time12 hrs
3 neighbors recently requested a quote
Recommended by92%of homeowners
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

"John replaced our rental septic tank. The project was completed in 1 day & the site was left raked & seeded as promised. We highly recommend his work."
Poly Septic tank replacement
Poly septic tank replacement
Response time8 hrs
22 neighbors recently requested a quote
Recommended by91%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
Avatar for Excavation Plus ll LLC
Excavation Plus ll LLC
3.6(
26
)
Septic System - Install or Replace

Serving Derby, CT and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"He was on time, friendly, and honest. We had a plumber tell us that the pipe was broken at the septic tank so Phil and Mike came out to dig it up and replace it. When he dug it up he found that the pipe was not broken and was totally honest about it and gave us options and help that solved our issue we were having. I would totally use him again for any work I need done in the future."
 finished wall
 Driveway cut in
 propane tank in place
 Before pic heavily wooded
 wall with steps

+61

Response time9 hrs
Recommended by82%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 Derby, 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
Avatar for Advanced Rooter Plumbing, LLC
Advanced Rooter Plumbing, LLC
4.3(
386
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Derby, CT and surrounding areas

In business since 2000

Free estimates

"I would highly recommend Advanced Rooter Plumbing. The prompt response time, scheduled same day service. The Plumber was very professional, courteous, thorough, honest, knowledgeable and experienced. He explained exactly what needed to be done, no surprises. We are very satisfied with the overall customer service and work performed, excellence. Results not excuses! Thank you Advanced Rooter Plumbing and Home Advisor."
 Fixing Gas Heating System
 Checking the outdoor connections
 Unblocking washer waterline
 New Build Roughout
 Industrial Work

+2

Recommended by94%of homeowners
Avatar for Alterio Drain Cleaning & More
Alterio Drain Cleaning & More
4.6(
16
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Derby, 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,

Before
After
Close up
In person
New Hot Water Heater

+3

Recommended by92%of homeowners
Showing 1-10 of 26
Septic Tanks FAQs, answered by experts

Over time, your septic tank can accumulate a buildup of sludge at the bottom of the tank. If left unpumped and uncleaned, the sludge will back up into your pipes and home, causing failure and extensive (and smelly) damage. Repairs to your septic system can be costly, which is why regular maintenance is required. It takes about 30 minutes to pump a septic tank that’s 1,250 gallons or less or 1 hour for larger varieties.

Septic tank locations are sometimes public record, although it depends on local laws and the property age. Older properties may not have the septic tank information on public record. To check, you can talk to local permitting agencies, such as your local health department, the local environmental department, or the county clerk.

Common signs that your well pump is failing include fluctuating or consistently poor water pressure, sputtering water from faucets, or a complete loss of water. Other indicators are unusual noises coming from the pump, the pump running continuously, dirty or cloudy water, or a sudden, unexplained spike in your utility bills. While some issues, especially after a power outage, might be resolved by simply restarting the power or priming the pump, persistent problems suggest a more serious issue. If you notice any of these red flags, it is recommended to call a professional well pump service to inspect the system and determine whether it needs to be repaired or replaced.

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.

It only takes a few days for a septic tank to fill with water after a pro has pumped it. This is completely normal, and the water is a vital part of your septic system’s wastewater treatment process. The water that fills your tank days after pumping is not the same as the tank being filled with waste. You shouldn’t have to pump your septic system more than once every three to five years unless you have a tank that’s too small for your home’s water output or there’s a problem with your leach field. 

The Derby, CT homeowners’ guide to septic tank services

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