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TRUSTED BY KILLINGWORTH, CT HOMEOWNERS
4.7 Average homeowner rating
105 Verified septic tank services reviews
Verified Reviews for Septic Tank Service pros in Killingworth, CT
*The Angi rating for Septic Tank Service companies in Killingworth, 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 Killingworth, 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 November 25, 2025
Find Septic tank pros in Killingworth
Mosman Wellworks, LLC
Mosman Wellworks, LLC
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience
Mosman Wellworks, LLC, provides safe water and quality service to both residential and commercial customers throughout Connecticut. When you hire Mosman Wellworks, LLC, expect superior service, honesty, and dependability. We stand by our work. No job is too challenging. Mosman Wellworks, LLC, are experts that you can trust. We serve Greater Waterbury and all throughout CT.
"Really fast response and a professional with a strong base of knowledge and his work and ability to put into layman s terms. Polite, trustworthy and capable"
Jason H on May 2020
Mosman Wellworks, LLC, provides safe water and quality service to both residential and commercial customers throughout Connecticut. When you hire Mosman Wellworks, LLC, expect superior service, honesty, and dependability. We stand by our work. No job is too challenging. Mosman Wellworks, LLC, are experts that you can trust. We serve Greater Waterbury and all throughout CT.
"Really fast response and a professional with a strong base of knowledge and his work and ability to put into layman s terms. Polite, trustworthy and capable"
Jason H on May 2020
Hazelwood Excavating, Inc.
Hazelwood Excavating, Inc.
75 years of experience
Free onsite estimate
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.
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.
Mad River Well Services, LLC
Mad River Well Services, LLC
Customers say: Quick response
23 local quotes requested
4 years of experience
Welcome to Mad River Well Services, LLC! In business since 2021, We bring over twenty years of experience to the well-water industry. We pride ourselves on affordability with quality work. Our goal is to provide you and your family with a well running system that you can rely on for safe water and dependability for many years to come. Be sure give us call today!
"Outstanding analysis and advice, timely service fairly priced, and outstanding workmanship--Who could ask for anything more from a Well Service company? Over the years I've spent nearly two decades in property management and maintenance, and in construction, and have seen the quality of workmanship decline. Mad River is a throwback to when craftsmen took pride in their work."
John V on August 2025
Welcome to Mad River Well Services, LLC! In business since 2021, We bring over twenty years of experience to the well-water industry. We pride ourselves on affordability with quality work. Our goal is to provide you and your family with a well running system that you can rely on for safe water and dependability for many years to come. Be sure give us call today!
"Outstanding analysis and advice, timely service fairly priced, and outstanding workmanship--Who could ask for anything more from a Well Service company? Over the years I've spent nearly two decades in property management and maintenance, and in construction, and have seen the quality of workmanship decline. Mad River is a throwback to when craftsmen took pride in their work."
John V on August 2025
John H. Bensavage, LLC
John H. Bensavage, LLC
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
44 local quotes requested
John H. Bensavage Septic, LLC, is a locally owned and operated septic cleaning company. We value honesty and integrity in all aspects of our business and offer a variety of services that are customizable to each individual project. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!
"John Bensavage is AMAZING! He's experienced and cares about doing the best job possible. Additionally, he leaves the job site in better condition than when he started the job. If I could give John a higher rating than 5 stars, I would. If you're looking for the right company to install or repair your septic system, hire John Bensavage, I can't imagine any other septic system installer doing a better job. Elizabeth Martin "
Elizabeth M on November 2025
John H. Bensavage Septic, LLC, is a locally owned and operated septic cleaning company. We value honesty and integrity in all aspects of our business and offer a variety of services that are customizable to each individual project. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!
"John Bensavage is AMAZING! He's experienced and cares about doing the best job possible. Additionally, he leaves the job site in better condition than when he started the job. If I could give John a higher rating than 5 stars, I would. If you're looking for the right company to install or repair your septic system, hire John Bensavage, I can't imagine any other septic system installer doing a better job. Elizabeth Martin "
Elizabeth M on November 2025
CT Radon & Well Water Solutions
CT Radon & Well Water Solutions
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
67 local quotes requested
Our team has over 90 years of combined experience providing reliable radon mitigation, water filtration, and well pump services and solutions to the Fairfield, New Haven, Hartford and Litchfield Counties of CT. Want to create a healthier and safer home environment? Call CT Radon and Well Water Solutions to schedule a no-cost radon mitigation or well water treatment estimate. We also offer cost effective well pump repairs throughout Fairfield, New Haven, Litchfield, and portions of Hartford and Middlesex counties. Schedule yours today!
"I would not recommend. I am a real estate agent and contracted this company to install a radon mitigation system in a home prior to closing based on a high radon level test during inspection. I met the company rep at the property and he quoted a system later that day after inspecting the home. The system was installed two weeks later and a retest came back more than double the level of the initial test. This company claims they have a warranty to cover any system modification to get the levels below 2.0. The company sent a crew back out twice and yesterday said the slab is too thick for the system they installed, the hole the installers drilled is too narrow and the home is in a flood zone. We knew the home was in a flood zone, but this company never asked about that and did not do any due diligence prior to installation. They are refusing to honor their warranty and are now quoting a different system that is much more costly. Can?t recommend."
Brian F on October 2025
Our team has over 90 years of combined experience providing reliable radon mitigation, water filtration, and well pump services and solutions to the Fairfield, New Haven, Hartford and Litchfield Counties of CT. Want to create a healthier and safer home environment? Call CT Radon and Well Water Solutions to schedule a no-cost radon mitigation or well water treatment estimate. We also offer cost effective well pump repairs throughout Fairfield, New Haven, Litchfield, and portions of Hartford and Middlesex counties. Schedule yours today!
"I would not recommend. I am a real estate agent and contracted this company to install a radon mitigation system in a home prior to closing based on a high radon level test during inspection. I met the company rep at the property and he quoted a system later that day after inspecting the home. The system was installed two weeks later and a retest came back more than double the level of the initial test. This company claims they have a warranty to cover any system modification to get the levels below 2.0. The company sent a crew back out twice and yesterday said the slab is too thick for the system they installed, the hole the installers drilled is too narrow and the home is in a flood zone. We knew the home was in a flood zone, but this company never asked about that and did not do any due diligence prior to installation. They are refusing to honor their warranty and are now quoting a different system that is much more costly. Can?t recommend."
Brian F on October 2025
Advanced Well and Home Solutions
Advanced Well and Home Solutions
Customers say: Quick response
41 local quotes requested
10 years of experience
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' 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.
"Justin was very helpful with my well point problem. He arrived on time and was able to fix the problem. "
John S on November 2025
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' 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.
"Justin was very helpful with my well point problem. He arrived on time and was able to fix the problem. "
John S on November 2025
Roto-Rooter Plumbing & Water Cleanup
Roto-Rooter Plumbing & Water Cleanup
Customers say: Quick response
286 local quotes requested
90 years of experience
When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.
"They were a day late"
Tina D on August 2025
When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.
"They were a day late"
Tina D on August 2025
All Odds Services LLC
All Odds Services LLC
Free onsite estimate
Offering Septic Repairs, Installation, and Inspections as well as any other Excavating or Drainage needs. Ask about our "Earthbuster", a machine that could potentially save you thousands on leaching field repairs! Small owner-operated company based out of CT, I look forward to helping you out!
Offering Septic Repairs, Installation, and Inspections as well as any other Excavating or Drainage needs. Ask about our "Earthbuster", a machine that could potentially save you thousands on leaching field repairs! Small owner-operated company based out of CT, I look forward to helping you out!
A-Team Plumbing and Drain LLC
A-Team Plumbing and Drain LLC
Customers say: Super punctual
8 years of experience
24/7-Plumbing-Drain Cleaning-Water Heaters with Discounts for Angie's List Members in New Haven county! We offer 24hr emergency service! We also offer Saturday service at no extra charge between the hours of 8am-5pm. Call us today or see our offers to claim your savings right here on our profile. Full project financing available.
"SCAM!!!!!!SCAM!!!!!!!!!!SCAM!!!!!!!!they had the nerve to add the overflow and waste and they know that was not y I am unhappy and disgusted!!!! Taylor knew she wasn’t going to be able to work on my furnace and still continued to install the thermostat and then charged me and said the company and herself didn’t feel comfortable working on it because it was too old …I mean it was the same furnace she looked at to begin with …she should have known then that it was too old 429.00 for a thermostat. I did not sign the completed paperwork. I called the receptionist wouldn’t give me her name or the owners name she refused I threatened to write an honest review and she hung up on me and would not take my calls She had promised to adjust the price until I threatened to write a review and she hung up and have not contacted me back Taylor was not transparent and I didn’t appreciate that She also quoted me 6500.00 to replace a water heater of course with all the bells and whistles. Home Depot quoted me 1550.00 with all bells and whistles with a 12 year warranty!!!! Have a great holiday A-Team"
Lola S on November 2024
24/7-Plumbing-Drain Cleaning-Water Heaters with Discounts for Angie's List Members in New Haven county! We offer 24hr emergency service! We also offer Saturday service at no extra charge between the hours of 8am-5pm. Call us today or see our offers to claim your savings right here on our profile. Full project financing available.
"SCAM!!!!!!SCAM!!!!!!!!!!SCAM!!!!!!!!they had the nerve to add the overflow and waste and they know that was not y I am unhappy and disgusted!!!! Taylor knew she wasn’t going to be able to work on my furnace and still continued to install the thermostat and then charged me and said the company and herself didn’t feel comfortable working on it because it was too old …I mean it was the same furnace she looked at to begin with …she should have known then that it was too old 429.00 for a thermostat. I did not sign the completed paperwork. I called the receptionist wouldn’t give me her name or the owners name she refused I threatened to write an honest review and she hung up on me and would not take my calls She had promised to adjust the price until I threatened to write a review and she hung up and have not contacted me back Taylor was not transparent and I didn’t appreciate that She also quoted me 6500.00 to replace a water heater of course with all the bells and whistles. Home Depot quoted me 1550.00 with all bells and whistles with a 12 year warranty!!!! Have a great holiday A-Team"
Lola S on November 2024
J T Collins Plumbing and Heating
J T Collins Plumbing and Heating
Customers say: Quick response
16 years of experience
JT Collins Plumbing has been in business since 2009, we specialize in all types plumbing and hot water heating Installations and repair. Give us a call or text at (203)500-4639 for your free estimate today.
"Horrible. Still working on the project. Three days in he worked a total of 6 hours. Constantly left the job for hours at a time. Never showed up when he said he would. Always I will be there in 10 minutes and an hour an a half later strolling up to have to leve again within an hour of working. Tor up the house and left a mess and the job still is not done. Extremely unhappy. I will NEVER use him again or thissite for refferences again."
Jodi L on February 2021
JT Collins Plumbing has been in business since 2009, we specialize in all types plumbing and hot water heating Installations and repair. Give us a call or text at (203)500-4639 for your free estimate today.
"Horrible. Still working on the project. Three days in he worked a total of 6 hours. Constantly left the job for hours at a time. Never showed up when he said he would. Always I will be there in 10 minutes and an hour an a half later strolling up to have to leve again within an hour of working. Tor up the house and left a mess and the job still is not done. Extremely unhappy. I will NEVER use him again or thissite for refferences again."
Jodi L on February 2021
Septic Tanks questions, answered by experts
The Killingworth, CT homeowners’ guide to septic tank services
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.
Replacing a drain field requires digging up quite a bit of land and involves a decent amount of testing. Using this guide, you’ll learn how much it costs to replace a drain field based on a few key factors such as size and type of septic system.
Roto-Rooter plumbing services can help you unclog drains, fix leaks, or provide remediation services after a flood. Learn the average cost to hire a local specialist and how they can help you.
How long do septic tanks last? It’s a valid question for those who have one. The answer is it varies between 15 and 50 years, depending on several factors.
Odor problems in the laundry room? We discuss why your washing machine smells like sewage and how to fix those stinky plumbing issues.
Your lot might require an alternative septic system based on location and soil conditions. Learn all about alternative septic systems and their costs.
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