Top-rated septic tank pros.

Best septic tank pros near Denmark, NY

Enter your zip and get matched with up to 5 pros

Need a pro for your septic tank service project in Denmark, NY?

Select your specific project to find the pro for you.

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

Over the Top Unlimited, Inc.
New to Angi
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Denmark, NY and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

Over The Top Unlimited Inc. is a fully incorporated, licensed and insured excavation and proudly serving Parish, NY and the surrounding areas. Owned and operated by Michael Peters, the company brings over 20 years of hands-on industry experience to every residential and commercial project. \n \nWith a full fleet of heavy equipment and the expertise to handle projects of all sizes, Over The Top Unlimited Inc. specializes in excavation, septic system installation and replacement, foundations, basement and crawl space work, waterproofing, and encapsulation services. Whether preparing a site for new construction, replacing aging infrastructure, or solving drainage and foundation issues, Michael and his team deliver dependable workmanship built to last. \n \nFrom start to finish, clients can expect professionalism, efficiency, and quality results backed by decades of experience in the field. \n

5 neighbors recently requested a quote
Avatar for JReid Farms Contracting
JReid Farms Contracting
4.9(
23
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair

Serving Denmark, NY and surrounding areas

In business since 2020

Free estimates

Small jobs welcome

"Excellent value. Superior work. We had multiple stumps removed, an old 16â x32â raised bed garden removed. One of the stumps was right next to our septic tank. JReid was able to remove this stump without harming our tank at all. This stump was within 1ft of the tank, and it was carefully removed with expertise. I would definitely recommend them!"
Response time6 days
Recommended by100%of homeowners
Drain Cleaners Sewer & Septic Professionals of Canton, Syracuse and Utica
3.5(
36
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+2 more

Serving Denmark, NY and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"This company called me as I clicked yes to help. Very knowledgeable, he asked me questions, figured out my problem and told me where to get part and pretty much how to install it and test it! He had prices, options and I will call him anytime I have water issues! The rest of the day I answered calls and was told I needed them to come and charge me tons of money.. I am up and running with a phone call! Almost nobody does that anymore. Satisfaction went through the roof with Drain Cleaners Sewer and Septic Professionals, they knew all about wells, pumps, tanks and control boxes! Love these guys! thank you again, Dean R. Hubbel"
Response time7 hrs
Recommended by92%of homeowners
Northern heating and cooling - Ana Sayfa Facebook
4.5(
9
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Denmark, NY and surrounding areas

In business since 2015

Free estimates

Credit card accepted

Northern Heating & Cooling, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business. \n

Response time30 mins
Recommended by85%of homeowners
C-Way Sanitation
5.0(
1
)
Septic System - Install or ReplaceSeptic System - RepairSeptic Tank - Clean or Pump Out

Serving Denmark, NY and surrounding areas

In business since 1970

Free estimates

Credit card accepted

With over 50 years of experience, our locally owned and operated company will make your septic installation look easy. Don't trust other less experienced companies for your job. C-Way Sanitation experts are the only inspectors in the North County who are licensed by the National Association of Wastewater Technicians. We can also provide certified septic inspections for all of your real estate transactions. C-Way Sanitation, can tend to all of your septic installation needs.

Response time1 day
Recommended by100%of homeowners
Avatar for DeComm, LLC
DeComm, LLC
5.0(
3
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair

Serving Denmark, NY and surrounding areas

In business since 2016

Free estimates

Credit card accepted

Personable, good work, connect easily timely and prompt, stays on budget and schedule. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time30 mins
Recommended by100%of homeowners
Whitcher Plumbing and Heating
New to Angi
Septic System - Install or ReplaceSeptic System - Repair

Serving Denmark, NY and surrounding areas

In business since 1970

Free estimates

Credit card accepted

Whitcher Plumbing and Heating is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.

Response time10 mins
Avatar for Nohle's Plumbing and Drain
Nohle's Plumbing and Drain
New to Angi
Septic System - Install or ReplaceSeptic System - Repair

Serving Denmark, NY and surrounding areas

In business since 2025

Free estimates

Credit card accepted

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. \n \nCall us today you'll be pleased you did. Thank you

Showing 1-10 of 17
Septic Tanks FAQs, answered by experts

While mound septic systems can provide cost-effective wastewater treatment in many instances, they do come at a significant initial installation cost and require a lot of space on your property for the mound and its replacement field. The installation cost is so high because this is a project that requires an exceptional level of skills and expertise to execute properly.

How to size a well pressure tank is determined by three factors: flow rate, or how many gallons per minute your well pump produces; minimum runtime; and pressure switch setting. Most pressure tanks have a pressure switch operating at 20/40, 30/50, and 40/60—the first number is the pressure needed for the pump to turn on, and the second number is the pressure needed for the pump to switch off. Most homeowners relying on well water require a water pressure tank ranging from 20 to 80 gallons. 

Recognizing signs of a failing septic system is crucial to prevent costly damage and health hazards. Foul odors in and around your home, slow drainage in sinks and toilets, or gurgling noises in plumbing fixtures can indicate problems with drainage. Lush, green patches of grass near the drain field or wastewater pooling on the ground are alarming signs that may indicate a leak in the system. If you notice any of these symptoms, it's vital to address them promptly to avoid more extensive and expensive issues.

Beyond the type of well pump, there are a few other factors to consider when selecting a well pump. Keep in mind the depth of your well, your average water usage, and the PSI of your water-consuming appliances to determine the appropriate motor horsepower and size of your well pump.

An outdoor water valve typically has a round or oval handle that you can turn to control the water flow. It may be located in a protective box or pit near the property line, where the main water line connects to your house.

The Denmark, NY homeowners’ guide to septic tank services

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