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TRUSTED BY DURHAM, CT HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon74
    Verified septic tank services reviews

Top-Rated Septic tank pros in Durham - Updated Nov 2026

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 Durham, 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
9 neighbors recently requested a quote
Recommended by97%of homeowners
John H. Bensavage, LLC
4.9(
98
)
Septic System - Install or ReplaceSeptic System - RepairSeptic System - Install or Replace - For Business+1 more

Serving Durham, CT and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Warranties offered

"Total professionals from beginning to end. We had to have our septic tank replaced quickly because we sold our house. They did an awesome job and I would highly recommend them."
Poly Septic tank replacement
Poly septic tank replacement
Response time8 hrs
22 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Hazelwood Excavating, Inc.
Hazelwood Excavating, Inc.
5.0(
1
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Durham, CT and surrounding areas

Approved

In business since 1950

Free estimates

Emergency services offered

Hazelwood Excavating, Inc., is a family owned company based out of Wallingford, CT. The company was founded in 1950 and has been passed down through generation after generation. We take extreme pride in the 3 P's fundamental to any good business which are Punctuality, Professionalism, and Precision.

New Septic Tank
Leaching
New Leaching
Response time2 days
Avatar for O'Hala Sanitation & Environmental
O'Hala Sanitation & Environmental
4.7(
17
)
Septic Tank - Clean or Pump Out

Serving Durham, CT and surrounding areas

In business since 2016

Free estimates

Emergency services offered

"Ryan was professional, extremely knowledgeable, and thorough. He utilized a camera and quickly identified the source of the blockage and pumped the tank. We will definitely use OHala Sanitation to address any future problems and for our annual septic pump service."
Response time3 hrs
Recommended by100%of homeowners
Finkeldey Septic - Facebook
4.9(
4
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Durham, CT and surrounding areas

In business since 1979

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! \n

Response time5 hrs
Recommended by100%of homeowners
Showing 1-10 of 30
Septic Tanks FAQs, answered by experts

You can add three rotten tomatoes or 1/4 ounce of yeast to your septic tank to speed up the decomposition of sludge. You can add the tomatoes by way of your garbage disposal and the yeast by way of your toilet. You can do either of these additives once every three months as needed.

With so much available information about the ecological effects of cesspools (and their general unpleasantness), it begs the question: Are cesspools legal? In short, sort of. Large-capacity cesspools that serve more than 20 people are completely illegal countrywide. Existing, smaller cesspools are generally allowed as long as they’re not actively polluting. However, new cesspools are illegal to build in all 50 states and Puerto Rico, and many states offer programs to help homeowners with the costs of updating cesspools to modern septic systems.

Consider site conditions, soil type, required capacity, and system designs compatible with environmental protection regulations.

French drains, sump pumps, and exterior waterproofing systems are common options. Choose one that best suits your property’s needs.

Start by finding the septic tank, marked by an access lid near your home. From there, the drain field extends outward in a series of trenches. Look for greener, lusher grass, as drain fields promote plant growth due to moisture and fertilizer. You can also check property records, use a soil probe to detect damp soil, or hire a septic professional with ground-penetrating radar equipment to map the drain field’s location.

The Durham, CT homeowners’ guide to septic tank services

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