Paddy Hagan

Q&A with our General Manager Paddy Hagan at the Anglo Celt Newspaper

A concrete future at O’Reilly Oakstown The Anglo Celt Newspaper spoke to our General Manager Paddy Hagan recently about our products, how we have diversified and an exciting future at O’Reilly Oakstown. AC: What products does your company offer? PH: O’Reilly Oakstown is part of the O’Reilly Concrete Group, which provides quality concrete products throughout […]

Septic Tanks Grants – Update 2021

Did you know that you could be entitled to a grant towards an upgrade of your old septic tank? Since 2013 the EPA launched its National Inspection Plan aimed at inspecting domestic Septic Tanks/Waste Water Treatment Systems to improve the impact on the environment by protecting ground and surface water quality, particularly drinking water sources, […]

Recruitment at O’Reilly Oakstown

Updated May 2021                   If interested please send your CV & Cover Letter to

Precast Concrete Holding Tank at St James Gate, Dublin

O’Reilly Oakstown installed a large commercial Precast Concrete Holding Tank at St James Gate, Dublin. The installation was challenging for our Technical Team as the areas for preparation and installation were very confined. This is as opposed to the large commercial sites we would regularly be installing our commercial holding precast tanks on. However, as […]

Environmental Protection all under control at Dublin Airport by O’Reilly Oakstown.

O’Reilly Oakstown installed our Oil/Water Separator under the new control tower at Dublin Airport this week. This system is a 6 litre per second class 1 full retention Oil/Water Separator. Our high-efficiency coalescence Oil Separators are fitted to surface water drainage systems for protection of the environment from oil pollution. They conform to the European […]

image of graph from re Domestic waste water treatment systems

Half of all septic tanks in Ireland failed inspections last year

Over a quarter of waste water systems inspected last year ‘posed risk to human health’. The EPA’s annual report shows that half of all septic tanks in Ireland (1,160) failed inspection last year. The Environmental Protection Agency (EPA) National Inspection Plan for 2019 found that 26% of systems were a risk to human health or […]

Super BAF system installed for Co Meath Wedding Venue

We are delighted to have worked with our client, a wedding venue in Co Meath, where we installed a Super BAF system. Our client needed a wastewater treatment system that is going to stand the test of time. As an award winning wedding venue they don’t want to be replacing their tank in a few […]

Good News for Rural Homeowners – Septic Tanks Grant

Minister Murphy announces new three-year investment programme for water services in rural areas Mr. Eoghan Murphy, T.D., Minister for Housing, Planning and Local Government today, Friday 8 February 2019, announced a new investment programme for water services in rural areas.  The Multi-Annual Rural Water Programme is to run from 2019 to 2021. The announcement follows […]

O’Reilly Oakstown Supply WWTS to Belvelly Tower House

O’Reilly Oakstown are pleased to be associated with Belvelly Tower House which was featured in RTE’s Great House Revival last Sunday Night O’Reilly Oakstown Environmental installed a wastewater treatment system for the castle during the course of the build.The transformation of the 800 year old building was a credit to all involved in it’s restoration.

Improving Sewage Treatment

Improving Sewage Treatment and existing tanks

Peter Varley discusses the options available for upgrading existing sewage treatment systems and installing new ones. Original Article appeared in Irish Farmers Journal on 04 Jul 2018 The fine weather offers an ideal opportunity to carry out works with faulty septic tanks and sewage treatment systems. Every homeowner with a private sewage treatment system is obliged […]

Ecoflo Coco Filter - Tertiary Treatment Unit

Introducing ECOFLO

We are delighted to add Ecoflo Tertiary Treatment Filter – domestic and commercial applications – to our range of products. Highest Performing A reliable wastewater treatment system well adapted to all site conditions. Proven performances surpassing the strictest standards. Sustainable A permanent and ecological solution – no energy needed for the treatment. Pre-assembled, easy-to-handle units […]

Barleystone Paving Brochure 2017

Our sister company, Barleystone Paving, manufacture a large range of concrete block paving suited to any project, from domestic gardens and driveways, to commercial car parks and public areas. Click on the image to download our latest Brochure here We also manufacture airtight/paint grade masonry blocks for commercial applications. Barleystone Paving specialise in the manufacture and […]

Completing a Septic Tank System Check – How & Why

Have you completed a septic tank system check? Maintaining your wastewater system will help to protect your health and the local environment. Read below information on SystemSafe from the Environmental Health Agency How a septic tank system treats your wastewater 1. Everything you flush down the toilet and send down the sinks, showers and washing machine […]

Sewage Treatment - New Homes

Make your Sewage Treatment System a Priority for New Homes!

Are you building a new home? If you are building your dream home it’s natural that Sewage Treatment may not be a priority! However it is now vital more than ever before to consider the status of your septic tank. It is important that you pick a wastewater treatment system that will last the lifetime of […]


Fundraising for Straight Ahead

Paula from O’Reilly Oakstown and her little 2 year old daughter Ciara presenting the cheque of €1,000 to Dr. Pat O’Toole in Crumlin Children’s Hospital. This was raised by the O’Reilly Group participating in the Christmas Charity Day 2016. Straight Ahead is a medical support group affiliated to the CMRF, which provides surgery, support and medical […]


Service & Maintenance Contracts

O’Reilly Oakstown Service & Maintenance Contracts  In order to ensure your system is working at its best and ensure no damage to the system, Waste Water Treatments should be serviced and inspected on a regular basis throughout the year by qualified technicians.  Once a problem arises the call out charges and inspections can cost much […]

O’Reilly Concrete Company Profile Video

Find out more about what we do! The O’Reilly Concrete Group are one of the largest Precast Concrete manufacturers in Ireland and the UK. Take a few moments to watch our newly released video which gives a great overview of our company, and find out what makes us unique. Wholly owned and manufactured by the O’Reilly family, […]


Installing New Sewage Treatment Systems & the Cost Involved

Peter Varley talks to Diarmuid O’Reilly of O’Reilly Oakstown Environmental about installing new sewage treatment systems and the cost involved. After the flooding this year it has become apparent that many septic tanks in rural areas are not working efficiently and may need upgrading. A septic tank is traditionally used for the primary treatment of […]


Rainwater Harvesting Systems

Water charges may have been shelved for now but there are still many farmers involved in local water schemes where water charges remain high. For farmers involved on local water schemes, installing a rainwater harvesting system is a viable option to reduce water bills. It would be preferable to install a system that would provide […] Survey

Engagement Strategy under the National Inspection Plan: Domestic Wastewater Treatment Systems The EPA have just launched a new website which will make it easier for people to get information about the quality of their local river, lake, estuary or the hidden waters below ground. It will also provide information about what people can do to help […]

O’Reilly Oakstown on RTE

Ear to the Ground with O’Reilly Oakstown demonstrating how a Septic Tank Upgrade is installed. O’Reilly Oakstown manufacture the BAF Sewage Treatment System, Septic Tanks, Oil Water Separators, Rainwater Harvesting and Oil Theft Solutions. They are an award winning company providing Environmentally Friendly Sewage and Water treatment Products

O’Reilly Oakstown Eco Eye

O’Reilly Oakstown on Eco Eye featured once again on RTE television Last time they took part in a programme filmed by the Ear to the Ground crew on upgrading an existing septic tank in Wilkinstown Co Meath. This time they are shown replacing a septic tank with their Oakstown BAF secondary treatment System in Rathfeigh, also […]

Braveheart Trim Castle

O’Reilly Oakstown are proud to be associated with the 20th anniversary celebration of the Filming of Braveheart in the historic town of Trim “If you have never visited Trim with its magnificent castle and surroundings before, do yourself a favour and see it this year. It’s a fascinating tour and a great day out.”


Map of Product Locations

Locations throughout Ireland where O’Reilly Oakstown have installed products e.g. BAF Sewage Treatment Systems, Septic Tanks, Rainwater Harvesting, Oil Water Separators etc. We deliver the following products throughout Ireland North & South: Septic Tanks, Wastewater Treatment Systems, BAF Sewage Treatment Systems, Rainwater Harvesting Systems, Concrete Tanks, Concrete Fencing, Pumps for Septic Tanks, and more. Contact […]

Farmers Journal

Inspections no longer making the headlines

Septic Tank Inspections no longer making the headlines – Farmers Journal 12 July 2014 The septic tank inspection regime is in place for almost a year now – but faded from the headlines! Here’s an industry view on what has happened. Diarmuid O’Reilly, managing director of O’Reilly Oakstown, which manufactures the award winning BAF range […]

Mobile Flood Protection

Mobile Flood Protection

Mobile Flood Protection Barrier System from Steinhardt In recent years Ireland has experienced localised flooding costing millions of euro in damage. With the risk of flooding and subsequent damage to property likely to increase, cost effective systems for flood protection are required for private and commercial property owners. The Steinhardt Flood Barrier System was developed […]

Desludging a septic tank

Does my Septic Tank need Desludging

Septic Tank Desludging? How do you know the tank needs desludging? To find out insert a 2” x 1” wooden pole or similar into the first chamber, through the “crust”. Mark on the 2×1 when you feel some solids at the bottom of the tank. Push the 2×1 further to the bottom. Mark this also. Compare […]

Maintenance of a septic tank

Maintenance of a Septic Tank

The most important element in the effective maintenance of a septic tank is desludging of the primary chamber periodically. Contrary to what some people believe, ALL humans produce sludge. How much? Roughly 90 litres per year. This the equivalent of a grown man. Given time this will compact to 60 litres. Once this more than […]

Prevent Oil Theft

Prevent Oil Theft Oil tank theft has risen approximately 153% since 2011, with more than 1,200 thefts in heating oil nationwide. As the black market for oil increases, the rewards for offenders do also. The incidents have not been confined to residential oil tanks, with schools, businesses, play groups and churches also being targeted. According […]


Inspection of Septic Tanks

Inspection of Septic Tanks THE EPA has drawn up a seven-page checklist for inspection of septic tanks and treatment systems by trained local authority staff. It spells out what an inspector will look for during inspections and the information entered will determine whether or not the septic tank is deemed compliant with standards or is […]

Farming Independent July 13

O’Reilly Oakstown Septic Tanks have been featured in the Farming Independent Article 23 July 13! Septic Tank advice from Diarmuid O’Reilly in an article on watercourses, poor percolation areas and sludge warnings. Diarmuid explains that some older septic tanks were built with little or no regard for the environment or health risks to humans. Diarmuid explains […]

upgrade my septic tank

Do I need to Replace my Septic Tank?

Do I need to Replace my Septic Tank? The good news is you may not need to! Some tanks will perform to the required standard with some adjustments. If you are unsure about whether you need to replace your tank or not, then call us today on Lo-Call 1850 200 702 and we will assist you. We offer […]

Upgrade your Septic Tank

Time to Upgrade your Septic Tank?

Do we need to upgrade our septic tank? Not all septic tanks need to be upgraded. If a septic tank is structurally sound and the percolation area is fit-for-purpose and there are no pollution issues then happy days. Sometimes a poor percolation area might just need a pump chamber and pump, which we often supply […]

Bead Test

Bead Test O’Reilly Oakstown are delighted to announce that, after testing at the Institute for Wastewater Technology, Aachen, The Oakstown Septic tank has been certified to En 12566 part 1. Our septic tank passed the hydraulic efficiency test with a result of 99.68%. The Oakstown BAF wastewater Treatment System has, of course, been certified to En12566 part […]

Oakstown Award

Meath Business Awards 2011

O’Reilly Oakstown have won an award under the Meath Business & Tourism Awards for the Environmental Responsibility Category. The Award ceremony took place on November 17th 2011, Trim Castle Hotel, Trim, Co. Meath. Read the Press Release Here Meath was the first county in Ireland to host this type of marketing awards event that acknowledges […]