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TRUSTED BY HARWINTON, CT HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon103
    Verified septic tank services reviews

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

Avatar for Mosman Wellworks, LLC

Mosman Wellworks, LLC

4.95(
10
)
•Approved Pro

Mosman Wellworks, LLC

4.95(
10
)
•Approved Pro
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

Avatar for Eastern Water Development Co.

Eastern Water Development Co.

4.76(
52
)
•Approved Pro

Eastern Water Development Co.

4.76(
52
)
•Approved Pro
Customers say: Quality work
17 local quotes requested
59 years of experience

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

Avatar for Mad River Well Services, LLC

Mad River Well Services, LLC

4.97(
19
)
•Approved Pro

Mad River Well Services, LLC

4.97(
19
)
•Approved Pro
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

Avatar for E. Garrity Water Solutions, LLC.

E. Garrity Water Solutions, LLC.

4.33(
6
)
•Approved Pro

E. Garrity Water Solutions, LLC.

4.33(
6
)
•Approved Pro
Customers say: Quick response
27 local quotes requested
79 years of experience

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

Avatar for Elevated Earthwork and Hardscapes LLC

Elevated Earthwork and Hardscapes LLC

4.33(
12
)

Elevated Earthwork and Hardscapes LLC

4.33(
12
)
Emergency services offered

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

Avatar for Housatonic Valley Well Pump Services

Housatonic Valley Well Pump Services

5.00(
5
)

Housatonic Valley Well Pump Services

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

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

No reviews yet

All Odds Services LLC

No reviews yet
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!

Avatar for M&M Excavating

M&M Excavating

5.00(
5
)

M&M Excavating

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

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

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Septic Tanks questions, answered by experts

Yes, you can adjust your well pump pressure relatively easily by yourself. You’ll need to remove the cover from your pressure switch and adjust a nut that controls cut-in pressure. Learn more about how to adjust a well pump pressure switch with a step-by-step guide to setting your water pressure.

The size of your septic tank plays a role in determining the proper size of the drain or leach field. As a general rule, you should have 1 square foot of drain field size per gallon of septic tank capacity. However, you could install a leach field that’s as much as 2.5 square feet per gallon of septic tank capacity. Most professionals determine the right septic tank size and drain field size by the number of bedrooms in the house. A three-bedroom house needs a minimum 1,000-gallon septic tank, for example.

Anaerobic septic tanks are the most cost-effective type of septic system, with an average cost of $3,000 to $8,000. Sand filter septic systems are the next most affordable, ranging from $7,000 to $18,000. Mound systems have the highest price tags of the bunch, coming in at $10,000 to $20,000 per installation.

While dry wells are helpful for dispersing excess rainwater from the roof or around the house, there are some downsides. For example, if you install a gravity flow dry well, it can take a long time to release the water depending on the dry well’s depth and the permeability of the soil. 

There’s also a risk of overflowing the dry well if you don’t have one large enough to handle the amount of rain in your area. The biggest disadvantage is that it’s hard to clean out a dry well, and sediment buildup can make the dry well less effective.

The average life span of a well pump is between 15 and 25 years, but a few factors can influence how long your well pump lasts. Excessive water demand and cycle frequency are the main causes of premature wear and tear. The well pump’s motor size as well as material and installation quality can also affect its life span.

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.

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