Top-rated septic tank pros.

Get matched with top septic tank pros in Windham, CT

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

TRUSTED BY WINDHAM, CT HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon53
    Verified septic tank services reviews

Verified Reviews for Septic Tank Service pros in Windham, CT

*The Angi rating for Septic Tank Service companies in Windham, 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 Windham, 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 May 21, 2026

Find Septic tank pros in Windham

Avatar for A.D.B. Construction & Septic Corp.
A.D.B. Construction & Septic Corp.
4.6(
217
)

Serving Windham, 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

Response time8 hrs
10 neighbors recently requested a quote
Recommended by97%of homeowners
Request Quote
Avatar for Benjamin Franklin Plumbing
Benjamin Franklin Plumbing
3.6(
183
)

Serving Windham, CT and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"The service technician was 2 hours late and his price was $1900, I decided to get a second quote and I am so glad I did. I got the same job done with better tank and filter for $1100. My advice is get a second quote if you have time, I saved $800 by using another company."
Dry Well
BOCK WATER HEATER INSTALL
AO SMITH WATER HEATER INSTALL
HAPPY CUSTOMERS ARE WHAT WE WANT!
TANKLESS INSTALL

+16

Response time1 day
Response rate85%
34 neighbors recently requested a quote
Request Quote
Avatar for Kelley Septic & Drain
Kelley Septic & Drain
4.8(
39
)

Serving Windham, CT and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"Great experience! Very nice gentleman who came to pump the septic and made sure he addressed all our questions and concerns. Would recommend!!"
Response time3 hrs
Recommended by97%of homeowners
Request Quote
Avatar for Drainworks Plumbing & Septic, LLC
Drainworks Plumbing & Septic, LLC
4.7(
236
)

Serving Windham, CT and surrounding areas

In business since 2017

Emergency services offered

Credit card accepted

"I hired them because they said they could pump my septic AND snake my drain. They did pump my tank very nicely, they were available when I needed them, and they were able to identify a problem immediately. However, what they meant by snaking the drain is that they could send another person out for an additional fee to snake the drain. I was also only quoted for the pumping and not the snaking so I ended up paying double what I thought I was going to pay. I also found out AFTER the first payment/job that they had a military discount so that was a little disappointing, but I am very grateful that it was applied to the second payment/job."
Broken footing drain pipe
new PVC Footing drain
Trench
septic system repair
Response time7 hrs
Recommended by96%of homeowners
Request Quote
Avatar for Flushaway Septic Tank Cleaning, Inc.
Flushaway Septic Tank Cleaning, Inc.
4.7(
78
)

Serving Windham, CT and surrounding areas

In business since 2015

Free estimates

Credit card accepted

"Bill and Skye cleaned out my septic tank. Excellent customer service, very professional, timely and very knowledgeable. Totally recommend Flushaway"
OUR WORK
OUR WORK
OUR WORK
OUR WORK
OUR WORK

+1

Response time3 hrs
Response rate93%
Recommended by97%of homeowners
Request Quote
Showing 1-10 of 26
Septic Tanks questions, answered by experts

Most septic tanks can handle two to three loads of laundry per day, or a weekly total of between seven and 10 loads. Although septic systems do require homeowners to be somewhat careful with their plumbing systems—for instance, it’s not a good idea to flush a bunch of toilet paper all at once—they can still handle fairly heavy use.

How do you set your well’s pressure tank? All you need to do is first drain the tank of water and find the pressure switch. Remove the switch cover and adjust the switch with a wrench—clockwise to increase water pressure, and counter-clockwise to reduce it. Each complete turn of the nut on the switch should equal 2.5 psi. Once this is done, replace the switch cover. All that’s left is to adjust the pressure of the tank itself using an air compressor and a tire gauge to support the new setting.

A septic tank riser features a base ring that you need to install flush to the opening of the septic tank. After thoroughly cleaning the opening of the tank, fit the base ring over the opening and use a butyl sealant rope to create an airtight seal with the tank’s rim. Cut the riser rings to the appropriate height and stack them on the base ring. Then, install the riser lid. This task might be taken on by an experienced DIYer, but you should always call a septic tank professional if you are unsure of your skills.

The price you’ll pay for service from a septic tank company will depend on the specific service you need. Here are some common services, along with average pricing:

  • Anaerobic septic system installation: $3,000–$8,000

  • Aerobic septic system installation: $10,000–$20,000

  • Septic tank pumping: $250–$550

  • Percolation test: $700–$2,000

  • Leach field installation: $2,000–$10,000

These numbers vary based on your septic system size, property layout, and more, so the best way to get an accurate estimate is to contact a septic tank professional for a custom quote.

Septic tanks can clog if they aren’t pumped every few years since solid waste accumulates inside of them. Your tank might also clog if you have a habit of flushing anything other than human waste or toilet paper. Items like diapers, baby wipes, paper towels, cat litter, and personal hygiene products should never go down your pipes.

The Windham, CT homeowners’ guide to septic tank services

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

See all articles