Drainworks mini excavator digging to reach a septic tank

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Septic · West CT branch

Septic tank repair in Plymouth, CT

Baffles, risers, covers, distribution boxes and the pipes in and out of the tank, repaired to the Connecticut public health code.

4.8★★★★★1,386 Google reviews

West CT · call or text(860) 248-6262

Common repairs

Septic repair prices

Starting prices

Outlet baffle, under 24"From $850
Inlet baffle, under 24"From $1,069
Access riser, lid dugFrom $699
Concrete coverFrom $348

Get a quote

Members save 5% on septic repairs and installs.

From$348Replacement concrete cover

5YRSWarranty on inlet baffles

3YRSWarranty on inlet pipes

5%OFFFor plan members

What is included

Fixed to code.

Inlet and outlet bafflesCracked or missing baffles let solids into the leach field. We rebuild them and seal the pipe with hydraulic cement.
Access risersCode-compliant ribbed risers with new concrete covers bring buried lids to the surface for good.
Covers and safety screensCracked covers replaced, and safety screens installed in existing risers.
Distribution boxesTipped or broken boxes replaced with new code-compliant PVC or concrete boxes so the field loads evenly.
Inlet and outlet pipesCollapsed pipes between the house, the tank and the field replaced, with a cleanout for future access.
Seed and hayEvery dig is backfilled, graded and covered with seed and hay before we leave.

Drainworks crew repairing a septic system next to a house — Septic repair · eastern Connecticut

Starting prices

Septic repair prices.

Starting prices for the most common tank repairs. Depth sets the price, because deeper parts need a machine instead of a shovel.

Riser safety screen: From $226
Effluent filter, at a pump-out: From $100
Clear an inlet baffle clog: From $55

Septic repair starting prices · Drainworks 2026 pricebook
Service	What it covers	Starting at
Outlet baffle repair Under 24 inches deep	Rebuild the outlet baffle and replace up to 2 feet of pipe, sealed with hydraulic cement.	From$850 Members from $775 Get a quote →
Outlet baffle repair Over 24 inches deep	Machine excavation to reach a deep outlet baffle.	From$1,187 Members from $1,087 Get a quote →
Inlet baffle repair 4 or 6 inch, under 24 inches	Rebuild the inlet baffle. Carries a 5-year parts and labor warranty.	From$1,069 Estimate Get a quote →
Inlet baffle repair 4 or 6 inch, over 24 inches	Machine excavation to reach a deep inlet baffle.	From$1,399 Estimate Get a quote →
Access riser Lid already dug	Code-compliant riser and new concrete cover, up to 24 inches.	From$699 Members from $664 Get a quote →
Access riser Dig included	Hand digging, riser, cover, backfill and seed, up to 24 inches.	From$817 Members from $777 Get a quote →
Replacement concrete cover 18 to 36 inch	New cover over a tank access less than 24 inches deep.	From$348 Estimate Get a quote →
Distribution box Under 2 feet deep	Excavate and replace with a new code-compliant PVC box.	From$750 Members from $712 Get a quote →
Septic inlet pipe Up to 25 feet	New PVC inlet with a cleanout, up to 4 feet deep. 3-year warranty.	From$3,729 Members from $3,542 Get a quote →

Prices assume grass or dirt. Repairs under asphalt, concrete or ledge are priced on site. Member prices are for Septic Plan and Family Plan members. Starting prices from our 2026 pricebook. A real person confirms your price before anything is scheduled.

How it works

Find it. Fix it. Seed it.

Most tank repairs are done in a day.

01
Find
A pump-out or inspection shows what failed and how deep it is.
02
Price
You get a written price before we dig.
03
Fix
We repair it to code and test it before backfilling.
04
Restore
The area is backfilled, graded, seeded and hayed.

4.8★★★★★Google · 1,386 reviews 4.8★★★★★HomeAdvisor · 216 reviews · 88% five-star

Plumbing PLM.0288824-P7 · Septic installer #6174 · Home improvement HIC.0650272

Questions

Septic tank repair, answered.

Answers from licensed plumbers and septic installers. Still unsure? Call West CT at (860) 248-6262.

How much does a septic baffle repair cost?

Outlet baffle repairs start from $850 when the baffle is less than 24 inches deep. Inlet baffles start from $1,069. Deeper baffles need a machine and cost more.

Why do septic baffles fail?

Older concrete baffles corrode from the gases inside the tank. Once a baffle breaks, solids can flow into the leach field and shorten its life.

Is a riser worth it?

Yes, if your lids are buried. A riser brings the lid to the surface, so every pump-out skips the digging.

Do septic repairs need a permit?

Some repairs, like replacing pipes or distribution boxes, may need a permit from your health district. We pull it when it is required.

Do you warranty septic repairs?

Inlet baffle repairs carry a 5-year parts and labor warranty, and inlet pipe replacements carry 3 years.

Membership

Out of sight, out of mind.

Like automatic oil delivery for your septic system. We inspect the tank every year and pump it every other year, without you keeping track.

Compare all three plans →

Septic Protection Plan

Septic only

Worry-free, automatic septic maintenance

$24.16per month · 24 months

Or $579.76 paid up front for the full term.

Automatic pump-out every two years
Yearly inspection and filter cleaning
Priority emergency service, no overtime charges
12 inches of digging included
5% off future septic installs

Join the Septic Plan Everything it covers →

Related services

The same crew handles every pipe on the property, from the well to the leach field.

Something failed? Get it fixed right.

Starting-price septic repairs across western Connecticut, priced before we dig.

West CT · call or text (860) 248-6262

Get a quote Text us

Septic tank repair in Plymouth, CT

Fixed to code.

Septic repair prices.

Find it. Fix it. Seed it.

Find

Price

Fix

Restore

Septic tank repair, answered.

Out of sight, out of mind.

Septic Protection Plan

The rest of the system.

Something failed? Get it fixed right.