About Cortech

Your Registered Dublin Plumbing Since 2021

Cortech Plumbing and Heating is a registered Irish plumbing and heating company based in Dublin 24. RGI-registered and fully insured, we have served homes, landlords and businesses since 2021.

Registered, insured and trusted across Dublin

Our story

From One Local Plumber to a Dublin-Wide Team

Cortech started in 2021 with one aim: give Dublin homes and landlords a plumber they could actually count on, registered, insured and quick to answer the phone. It began with founder Cormac taking on local boiler and emergency work around Tallaght, doing every job properly and charging a fair price. As the calls kept coming, that one-man start grew into the full team we run today.

The reputation grew the right way, on clean work, fair prices and showing up fast when something went wrong. Cortech now runs a 24-hour emergency line and holds more than 153 five-star reviews across Google, Bark and OnlineTradesmen. What drives the work is the same as it was in 2021: do the job properly, price it honestly, and leave every home as tidy as we found it.

Our engineers

Every Engineer Registered, Insured and Trained

You get the same quality whoever we send. Every Cortech engineer is RGI-registered, fully insured and experienced, so the job is done to the same high standard every time.

RGI-registered and gas-safe

Every gas job is carried out by a registered engineer.

Fully insured

Full public liability cover on every visit.

Uniformed and identifiable

You always know exactly who is at your door.

Experienced and tidy

Careful work, and a home left as clean as we found it.

What we stand for

What Every Cortech Job Is Built On

Our credentials

Registered, Insured and Accountable

Every credential that matters for gas and heating work, set out plainly and verifiable.

RGI Registered Gas Installer

Cortech is a Registered Gas Installer of Ireland (RGI), the certification legally required for gas work. Every gas job is carried out by a registered engineer. (RGI registration number to be displayed.)

National Guild of Master Craftsmen

Cortech is a member of the National Guild of Master Craftsmen, an independent mark of quality and standards across the trades.

Fully Insured

Cortech carries full public liability insurance on every job, covering homeowners, landlords and businesses.

A Registered Irish Company

Cortech Plumbing and Heating Limited is a registered company in Ireland (CRO 800557), based in Tallaght, Dublin 24.

Reviews

Trusted by Dublin Homes and Landlords

EXCELLENT
Google star 1Google star 2Google star 3Google star 4Google star 5
Based on 190 reviews
Posted on Google Google
michael dalton profile picture
michael dalton
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great company I needed a radiator installed had two very nice young lads install it Graham and Leon both very polite and good at their job would highly recommend this company mick
Posted on Google Google
Shane O Neill profile picture
Shane O Neill
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Will definitely use again. Extremely professional. The job was arranged quickly after my first call. Very good communication from start to finish.
Posted on Google Google
Rachel Phillips profile picture
Rachel Phillips
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I had an emergency as my heating wouldn't turn on and no hot water,I ran cortech plumbing and they were out to me in half an hour and took them only five minutes to fix the problem,would recommend them to everyone,brilliant service,they also gave me a discount as I am a former customer.
Posted on Google Google
Patrick Wheatley profile picture
Patrick Wheatley
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Prompt,business like boiler service service,practical advice.
Posted on Google Google
Chris Mothersill profile picture
Chris Mothersill
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Friendly service fast and efficient
Posted on Google Google
Poliah Pramila profile picture
Poliah Pramila
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Monday 14th September 2026. I am extremely happy with the service I received from Cortech Plumbing & Heating. My boiler was leaking and there was a strong smell of gas,which was very concerning and worrying as well. They responded quickly...very professional and reassuring...they identified and dealt with the problem efficiently. Honestly I really appreciated their prompt response... knowledgeable and excellent customer service.. They were reliable and friendly...They also make sure that everything was sorted accordingly in a proper way. I would highly recommend Cortech Plumbing & Heating to anyone looking for a trustworthy and professional staff worker... I extremely appreciated their excellent service from start to finish..... Thank you all the great excellent staff worker.... Pramila
Posted on Google Google
Georgina Eastaugh profile picture
Georgina Eastaugh
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Massive thank you to Ben from Cortech who came for an emergency call out to find my wedding ring. Didn’t need any plumbing work thankfully as he found it in about 10 seconds by figuring out what had happened - a very logical approach. Left me feeling silly, but very grateful. Thanks so much!
Posted on Google Google
Sandra Carr profile picture
Sandra Carr
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Thank you so much for your fantastic work!! Ben is exceptional. Always comes out very fast after calling him. I’ve had him out a couple of times now and they are a great company to work with!
Posted on Google Google
Marian Miller profile picture
Marian Miller
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very happy with service. Very Customer friendly. Ben a very pleasant and polite young man. Very happy with service. Diagnosed an issue we were pleased to be made aware of. Definitely would recommend this Company.
Posted on Google Google
Mark Cagney profile picture
Mark Cagney
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I had a shower unit locked open with water flowing for a couple of hours and needed a call out. Found Cortech on Google and rang them about 9.30 am on a Friday morning. The service man, a really helpful guy called Ben was here in 40 mins and sorted the problem immediately. He also helped me find a company who had a replacement unit and parts. From my initial call, to job completed ( including help with finding replacement unit ) took 45 mins. The speed and efficiency of the service, plus the really pleasant manner in which I was dealt with was a breath of fresh air. I would highly recommend Cortech Plumbing.
Verified by Trustindex
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Where we work

Covering Every Part of Dublin from Tallaght

From our base in Tallaght, Dublin 24, we cover the whole city, north and south, for homeowners, landlords and businesses. Find your area below or give us a call.

FAQ

Your Questions, Answered

Is Cortech RGI registered and insured?

Yes. Cortech is a Registered Gas Installer of Ireland and a member of the National Guild of Master Craftsmen, and we carry full public liability insurance on every job.

Every job is handled by Cortech’s own registered, insured engineers, each trained to the same standard. They are the same team our customers name in their Google reviews.

Cortech is based in Tallaght, Dublin 24, and covers the whole of Dublin, north and south. Check the areas we cover or call to confirm.

Cortech has served Dublin homes, landlords and businesses since 2021, and now runs a 24-hour emergency service right across the city.

Yes. Cortech handles Annex E gas safety inspections and certificates for rental compliance, alongside servicing, repairs and emergency callouts for landlords across Dublin.

Call Cortech on (01) 963 6090 or request a quote and we will come back fast with a clear price. For emergencies the line is open 24/7.

Contact us

Talk to a Registered Dublin Plumber Today

Whatever the job, our registered, insured team covers all of Dublin. Tell us what you need and we will come back fast with a clear, upfront price.

Get a Quote

No obligation. Fixed quote before any work starts.