Corcoran Precast Tanks provides septic tank services, wastewater treatment, rainwater harvesting, oil intercepters, and more for domestic & commercial customers.

Welcome to Corcoran Precast Tanks

Corcoran Precast Tanks is an Irish owned family-run business with over 40 years’ experience in the Septic Tank and Waste Water services sector, offering a range of services and products suitable for wastewater treatment, rainwater harvesting, percolation, and more. Our team offers a full design, supply, installation and maintenance services for both domestic and commercial applications. We work with customers throughout Ireland, offering an extensive range of solutions to meet the needs of a diverse range of clientele.

Whether we supply and commission your domestic/commercial Waste Water Treatment system or provide you with a total turnkey package, you can rest assured that we will provide an efficient and professional service from start to finish. We have a diverse product range available, and we are equipped to meet the needs of a variety of small or large scale operations.

We pride ourselves in knowing that all of our customer’s unique specifications, however big or small, are not only met but surpassed. Our water waste 

management systems are the most efficient and most cost effective on the market, saving you time and money while keeping your home or office

safe, clean, and functional.

Why Choose Us?

  • Helpful and friendly highly skilled team.

  • 2 years warranty as standard on our waste water treatment systems

  • Extended warranty available

  • Supporting Irish jobs and Irish industry

  • Fully insured

  • Complete aftercare service

  • No hidden charges

  • Range of Percolation Products & Services

  • Experts in Domestic & Commercial Wastewater Systems

Corcoran Precast Tanks offers the most efficient and most cost effective water waste management systems on the market. Call us to discuss your requirements.

about us

About Us

Corcoran Precast Tanks is an Irish owned family-run business with over 40 years’ experience in the Septic Tank and Waste Water services sector. We work with domestic and commercial customers to install professional products & systems to meet all requirements.

Septic Tank Upgrades


We offer a massive range of rainwater harvesting, waste water treatment systems, percolation systems and more for clients. As well as offering design and installation services, we will provide you with all necessary products & equipment needed for these new domestic and commercial systems.



We manufacture and supply a variety of septic tank sizes, including  shallow tank design, which allows for placement in areas where bedrock may be a problem. As well as our range of septic tanks, we supply oil interceptors, pump systems, rainwater harvesting systems, and more.

about us

Septic Tank Upgrades

Experience a seamless septic tank upgrade process with Corcoran Precast Tanks as we adhere to a straightforward four-step system. Our team ensures a swift, effortless, and trouble-free experience when you opt to enhance your septic tank.

Septic Tank Upgrades


Corcoran Precast Tanks offers comprehensive wastewater servicing and maintenance solutions tailored to your specific needs. Our packages cover a range of systems, including wastewater treatment systems, pumping stations, and rainwater harvesting systems.


Domestic Rainwater Harvesting

Discover the diverse selection of domestic Rainwater Harvesting systems available at Corcoran Precast Tanks, highly favoured by our customers due to their cost-effectiveness and environmentally conscious nature.

about us

Commercial Rainwater Harvesting

Corcoran Precast Tanks presents a diverse collection of commercial Rainwater Harvesting systems designed to meet the unique needs of businesses. We recognise the significance of proper sizing for optimal operation and improved cost-effectiveness.

Septic Tank Upgrades

Precast Tanks

At Corcoran Precast Tanks, we take pride in our diverse septic tank sizes, manufactured and supplied to meet your specific requirements. Our innovative shallow tank design offers a unique advantage by enabling installation in areas where bedrock poses a challenge.


Wastewater Treatment

In collaboration with Batchpur, we proudly offer our customers access to cutting-edge and highly efficient wastewater treatment systems. The Batchpur system uses the Sequential Batch Reactor (SBR) process, representing the pinnacle of technical advancement in wastewater treatment.

about us

Oil Interceptors

Implementing full retention oil interceptors is crucial in environments where the risk of oil spills or contamination is medium to high. These interceptors find application in various settings, such as maintenance garages, goods vehicle parks, and refuse recycling facilities.

Septic Tank Upgrades

Pump Stations

Corcoran Precast Tanks offers precast pump stations to efficiently manage sewage effluents, surface water, and other effluents. These comprehensive packages are equipped with all the essential components already pre-fitted within the tank.


Water Harvesting Systems

Please take advantage of the abundant and cost-free natural resource of rainwater by harnessing its potential for your household, whether it's an existing structure or a new construction. You can effortlessly capture rainwater by utilising the roof, gutter system, and downpipes already in place on your house and/or garage.



A Percolation test is conducted to assess the soil's soakage rate, which is crucial for determining the size of the percolation area. The outcomes of this test play a significant role in designing your sewage system. If a site exhibits inadequate soakage, it will be unsuitable for a septic tank and require the utilization of a sewage treatment unit.

For more information on our full range of Carlow septic tanks, oil percolators, water harvesting systems & more, contact the team at Corcoran Precast Tanks today.

Our Products & Services

Here at Corcoran Precast Tanks, we have years of experience providing a range of professional services for domestic and commercial clients. Alongside our Carlow precast tanks and wastewater treatment systems, we provide full installation, maintenance, and repair services for rainwater harvesting systems, septic tanks, oil interceptors, pump stations, and more.

  • Septic Tank Upgrades

  • Carlow Precast Tanks

  • Septic Tank Servicing

  • Septic Tank Maintenance

  • Domestic Rainwater Harvesting Systems

  • Commercial Rainwater Harvesting Systems

  • Wastewater Treatment Systems

  • Oil Interceptors

  • Water Harvesting Systems

  • Oil Percolation Systems