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Average homeowner rating103
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Verified Reviews for Septic Tank Service pros in Harwinton, CT
*The Angi rating for Septic Tank Service companies in Harwinton, 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 Harwinton, 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 Harwinton

Mosman Wellworks, LLC
Mosman Wellworks, LLC
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

Eastern Water Development Co.
Eastern Water Development Co.
We have been in business since 1966 and have proudly served our community with an unparalleled range of water services. From the installation and maintenance of pump systems to the tap water you drink in your home, we have the expertise and services you need.As a full service water treatment company, we work with residential and commercial applications, providing only the best in water conditioning, treatment, filtration and more. Our certified professionals have years of experience in practicing only the safest and most efficient processes of water treatment.We have helped dozens of customers for over three decades and continue to do so. Our emergency services allow us to tend all of your water maintenance issues, whenever they may occur. The value and appreciation we have for our company is reflected in the work we do in our community.
"Great and quick service"
Kash R on October 2021
We have been in business since 1966 and have proudly served our community with an unparalleled range of water services. From the installation and maintenance of pump systems to the tap water you drink in your home, we have the expertise and services you need.As a full service water treatment company, we work with residential and commercial applications, providing only the best in water conditioning, treatment, filtration and more. Our certified professionals have years of experience in practicing only the safest and most efficient processes of water treatment.We have helped dozens of customers for over three decades and continue to do so. Our emergency services allow us to tend all of your water maintenance issues, whenever they may occur. The value and appreciation we have for our company is reflected in the work we do in our community.
"Great and quick service"
Kash R on October 2021

Mad River Well Services, LLC
Mad River Well Services, LLC
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

E. Garrity Water Solutions, LLC.
E. Garrity Water Solutions, LLC.
E. Garrity Water Solutions, LLC. is a family owned and operated business. We take pride in are work and use the highest quality products. We offer 24 hour service, 365 days a year. We provide 0% financing to qualified buyers.
"Three years later we're still dealing with the fallout from Garrity's shoddy work. We hired them to install a pump and sensor system to supply water from a new dug well. They consistently cut corners and over-charged us. We have had to hire another company to fix the issues they created (for instance, the pump controller shorted for the second time last week, and each replacement has cost > $1,500)."
Laurel L on December 2023
E. Garrity Water Solutions, LLC. is a family owned and operated business. We take pride in are work and use the highest quality products. We offer 24 hour service, 365 days a year. We provide 0% financing to qualified buyers.
"Three years later we're still dealing with the fallout from Garrity's shoddy work. We hired them to install a pump and sensor system to supply water from a new dug well. They consistently cut corners and over-charged us. We have had to hire another company to fix the issues they created (for instance, the pump controller shorted for the second time last week, and each replacement has cost > $1,500)."
Laurel L on December 2023

Elevated Earthwork and Hardscapes LLC
Elevated Earthwork and Hardscapes LLC
Site Excavation, drainage and Hardscapes. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today. ****OUR COMPANY DOES NOT REMOVE OR INSTALL OIL TANKS****
"Great team and work, thorough yet timely, total communication."
Dan R on October 2023
Site Excavation, drainage and Hardscapes. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today. ****OUR COMPANY DOES NOT REMOVE OR INSTALL OIL TANKS****
"Great team and work, thorough yet timely, total communication."
Dan R on October 2023
Dove Site Development, LLC
Dove Site Development, LLC
We are a excavating company based in litchfield county. -New home construction -Grading -Drainage -Driveways
We are a excavating company based in litchfield county. -New home construction -Grading -Drainage -Driveways

Housatonic Valley Well Pump Services
Housatonic Valley Well Pump Services
Housatonic Valley Well Pump Services is committed to providing safe and effective well water for our community. We separate ourselves from the competition with our: Experience-with over 20 years in the industry, we know a thing or two about quality well pump services. Customer service-your trust is our priority. We will never oversell you for things you don't need. Certifications-our owner, Ralph Espinal, is licensed in the states of Connecticut and New York. He also has full J1 licensing in the state of Connecticut. Emergency availability-you can't afford to wait when your system stops working. We're available 24/7 for emergency repairs and testing. We perform a full system check after every service we complete. Ask us about our discounts for military and senior citizens.
"Ralph was our first call once we submitted what we needed. He was professional, happy to answer any questions and head right over to take a look for himself. He sent me a quote for review, and after getting similar prices from other providers we decided on HV Water because Ralph made my husband and I comfortable and as if he was doing this on his own house. The install day was spotless, both installers were professional, meticulous and thorough. Cannot recommend these guys enough. Thanks again for an amazing job."
Anlyn H on February 2021
Housatonic Valley Well Pump Services is committed to providing safe and effective well water for our community. We separate ourselves from the competition with our: Experience-with over 20 years in the industry, we know a thing or two about quality well pump services. Customer service-your trust is our priority. We will never oversell you for things you don't need. Certifications-our owner, Ralph Espinal, is licensed in the states of Connecticut and New York. He also has full J1 licensing in the state of Connecticut. Emergency availability-you can't afford to wait when your system stops working. We're available 24/7 for emergency repairs and testing. We perform a full system check after every service we complete. Ask us about our discounts for military and senior citizens.
"Ralph was our first call once we submitted what we needed. He was professional, happy to answer any questions and head right over to take a look for himself. He sent me a quote for review, and after getting similar prices from other providers we decided on HV Water because Ralph made my husband and I comfortable and as if he was doing this on his own house. The install day was spotless, both installers were professional, meticulous and thorough. Cannot recommend these guys enough. Thanks again for an amazing job."
Anlyn H on February 2021
All Odds Services LLC
All Odds Services LLC
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!

M&M Excavating
M&M Excavating
M&M Excavating is is small excavation company specializing in but not limited to septic system installation and repair, site work, driveway installation and repair, brush clearing, and many others. We are dedicated to providing good quality work at reasonable rates.
"They were very good, very nice to work with. Very professional, did what they said they would do, the equipments were immaculate and the price they quote is the price that you gonna pay, no hidden charges."
Gary H on January 2019
M&M Excavating is is small excavation company specializing in but not limited to septic system installation and repair, site work, driveway installation and repair, brush clearing, and many others. We are dedicated to providing good quality work at reasonable rates.
"They were very good, very nice to work with. Very professional, did what they said they would do, the equipments were immaculate and the price they quote is the price that you gonna pay, no hidden charges."
Gary H on January 2019
P.F.D Tree Removal and Excavation Services
P.F.D Tree Removal and Excavation Services
We are a Fully Licensed and Insured Company for all Residential and Commercial Property.
We are a Fully Licensed and Insured Company for all Residential and Commercial Property.
The Harwinton, CT homeowners’ guide to septic tank services
From average costs to expert advice, get all the answers you need to get your job done.

How much does a septic system cost? Explore impacting factors, important add-ons, and how you can save money on septic system installation right here.
•Get transparent sewer line camera inspection cost info. Learn what impacts pricing and how to budget for this essential home maintenance.

Does your property have poor ground water or soil conditions? Learn about engineered septic system cost, types, and factors for you to consider.

It’s a big job to replace a sewer line, so it’s important to consider all of your options. Learn why it’s important to get a pro to investigate the cause of your sewer line problem, how much a replacement will cost, and if you really need it.

A clogged main sewer line can lead to sewage leaks in your yard or home. Look for these eight signs of a clogged septic line to fix this problem ASAP.

The time it takes to replace a septic tank depends on a few factors. Sometimes the fix is simple, but even if it’s not, here’s how long it takes to replace a septic tank.
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