Top-rated septic tank pros.

Get matched with top septic tank pros in Willimantic, CT

Enter your zip and get matched with up to 5 pros

Need a pro for your septic tank service project in Willimantic, CT?

Select your specific project to find the pro for you.

TRUSTED BY WILLIMANTIC, CT HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon94
    Verified septic tank services reviews

Find Septic tank pros in Willimantic

Avatar for A.D.B. Construction & Septic Corp.
A.D.B. Construction & Septic Corp.
4.6(
217
)
Septic System - Install or ReplaceSeptic System - Repair

Serving Willimantic, CT and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Justin answered my telephone messages within 15 minutes each time and was service and cost specific. Chris was professional and committed to resolving and testing our septic tank issue before leaving on a Sunday evening! Exceptional service -- highly recommend! Thank you to Home Advisors."
 Curtain Drain
 Sewer line replacment
 footing drains around an oil tank
 Sewer line repair
 Stone added

+33

11 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Benjamin Franklin Plumbing
Benjamin Franklin Plumbing
3.6(
183
)
Septic System - Install or ReplaceSeptic System - RepairSeptic System - Install or Replace - For Business+3 more

Serving Willimantic, CT and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"Matt, AJ, Scott, Vinnie, Charlie all did a terrific job. They installed a gas water heater, installed a shut off on the water heater where there was one missing, replaced a kitchen sink from an old double sink to a new full size sink and in doing so, moved the garbage disposal and re-piped the whole project. They checked other pipes & plumbing and repaired a broken outside water pipe. Tisha in the office was also wonderful - very accommodating, congenial and they are all very customer service oriented. Respectful, honest, and I would highly recommend this company to anyone."
Dry Well
BOCK WATER HEATER INSTALL
AO SMITH WATER HEATER INSTALL
HAPPY CUSTOMERS ARE WHAT WE WANT!
TANKLESS INSTALL

+16

39 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Jade Construction
Jade Construction
4.4(
45
)
Septic System - Install or ReplaceSeptic System - Repair

Serving Willimantic, CT and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"Jason was prompt and helpful and was very flexible in changing or modifying the nature of some of the work before starting. He did virtually all the grading himself and knew exactly what to do. The work was done on time and as specified. I will surely contact him if I need drainage work for another project."
Septic Install
Septic Install
Foundation
Footing drains
Septic Install

+131

Response time5 hrs
Response rate93%
10 neighbors recently requested a quote
Avatar for Dan Mackin, Jr., Construction
Dan Mackin, Jr., Construction
4.7(
21
)
Septic System - Install or ReplaceSeptic System - Repair

Serving Willimantic, CT and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"When in need of a new septic system to replace an aging cesspool I contacted several advertised septic companies. Site estimates were from $15,000 to $20,000 for a simple installation to $25,000 - $30,000 with difficulties. So, with the information found on Home Advisor we chose Dan Mackin Jr. Construction from Jewett City, CT (860-376-6591 or 860639-7933) whose estimate after examination of the site was $13,200. It turned out the only acceptable area required extensive ledge removal! Mackin Construction removed the ledge at no extra cost. After installation was complete, the area was totally restored to our satisfaction. At no time was there a lack of communication (verbal or digital) between the customer and the contractor. Payoff was $13, 050 because we were credited $150 for parts not needed. BOTTOM LINE: This is one of the last family owned businesses of this kind that deliver a quality product at a fair price!"
 Rock breaking
foundation
septic install
mill machine foundation
 Beach pond retaining wal

+38

Recommended by100%of homeowners
Bond Excavation
5.0(
10
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Willimantic, CT and surrounding areas

In business since 2005

Free estimates

Credit card accepted

"My name is Dan Mastronunzio, I own Brom Homes, LLC. I hire Bond Excavation for the site work on all of our projects. He is so excellent to work with, and does such superb work. I highly recommend Bill, Quinn and their team for all things site work."
Response time8 hrs
Recommended by87%of homeowners
Avatar for Stone Building Systems, LLC
Stone Building Systems, LLC
5.0(
5
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair

Serving Willimantic, CT and surrounding areas

In business since 2008

Free estimates

Offers commercial services

"Paul was very knowledgeable about what needed to be done to replace my whole Septic System. The installation that was completed was amazing and flawless. Paul worked with the town to get the system in and approved. Paul answered every question in a timely matter. I did not have to worry about anything regarding this big project. I recommend Paul 200% and would share his information with all my family and friends. Paul is a master at his work and is priceless in this industry. You will not feel like a number or inconvenience with Paul. Give him a call and let your worries be out to rest with his work."
Septic Repair
Septic Repair
Response time6 hrs
Recommended by100%of homeowners
Showing 1-10 of 25
Septic Tanks questions, answered by experts

Talking with a septic pro before planting trees near your tank is best to ensure the roots won’t interfere with your septic system. However, there is an easy way to figure out where to plant a tree—but you’ll need to know how tall it can get when it’s fully grown. For instance, if the tree can reach 50 feet, plant it at least 50 feet from your septic system.

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. 

There are a few things that can make your drain field fail. These include driving or parking vehicles or heavy machinery on the field, excess sodium in the soil, or having a high water table. You can prevent failure by ensuring your installer checks that your chosen location is suitable for a drain field and properly maintaining your system with the help of a professional.

For the most part, choosing between 30/50 psi and 40/60 psi is based on your water-pressure preference. However, it can also depend a little bit on your house—if you have older plumbing, a lower water pressure can be easier on the pipes (and a bit more gentle on your well pump). 

The lower 30/50 pressure is usually enough for a single-story home, but you may want 40/60 if you have multiple stories, as the extra pressure helps water flow smoothly up to the second floor.

The average cost to replace a septic tank or install a new system is typically around $7,350, with a broader average range of $5,000 to $12,000. However, total project costs can vary widely, from $5,000 to as much as $22,500. Key factors influencing the price include the size and type of the septic system, the tank material, and the size of your house.

It's important to distinguish between the cost of the tank itself and the cost of the entire system installation, which is significantly more. For the tank alone, costs vary by size:

  • A tank for a one-bedroom house typically costs $500 to $900.

  • A 1,000-gallon tank, suitable for most one- to three-bedroom homes, costs between $900 and $1,500.

  • A tank for a five- or six-bedroom home generally costs $1,200 to $1,600.

The Willimantic, CT homeowners’ guide to septic tank services

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