153 Google Reviews
Dublin 3 is full of older houses with original pipework. We repair, service and replace it properly, RGI registered and on call around the clock.
No obligation. Fixed quote before any work starts.






Most of Dublin 3 was built before your boiler was invented. Marino went up in the 1920s in concrete, Clontarf and Fairview in Victorian redbrick, and a lot of what runs behind those walls has never been touched since.
Cortech works on these houses every week. RGI registered, fully insured and over 5 years in Dublin, we trace the fault properly before quoting, whether that ends in a repair or a full boiler replacement.
Six jobs account for most of our Dublin 3 call-outs. Tell us which one sounds like yours and we will tell you how urgent it really is.
We find it, stop it and repair the pipework.
Combi, system and oil boiler faults diagnosed and fixed.
RGI-registered leak detection, then the repair.
Blockages cleared and the cause checked properly.
Drips, pressure problems and full bathroom plumbing.
Annex E checks and the certificate you must hold.
We find it, stop it and repair the pipework.
Combi, system and oil boiler faults diagnosed and fixed.
RGI-registered leak detection, then the repair.
Blockages cleared and the cause checked properly.
Drips, pressure problems and full bathroom plumbing.
Annex E checks and the certificate you must hold.
Most Dublin 3 homes are pre-war and have been extended since. The faults follow the age of the build, which is why the first question is always what and when.
Most of these houses have been extended at least once. Knowing where the old plumbing stops and the newer work starts saves hours of lifting floors and opening walls.
1920s Corporation builds where pipe access is rarely simple.
Pre-war Fairview and Clontarf houses often on original pipe.
Gravity systems that lose pressure and waste heat.
Clontarf and Dollymount weather corrodes flues, taps and outside pipe.
Everything on this page is done in-house by RGI-registered plumbers. Tap any service to see the detail, or call and we will tell you what the job needs.
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EXCELLENT
Based on 190 reviews
Posted on Google![]()
michael daltonTrustindex 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 mickPosted on Google![]()
Shane O NeillTrustindex 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![]()
Rachel PhillipsTrustindex 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![]()
Patrick WheatleyTrustindex verifies that the original source of the review is Google.
Prompt,business like boiler service service,practical advice.Posted on Google![]()
Chris MothersillTrustindex verifies that the original source of the review is Google.
Friendly service fast and efficientPosted on Google![]()
Poliah PramilaTrustindex 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.... PramilaPosted on Google![]()
Georgina EastaughTrustindex 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![]()
Sandra CarrTrustindex 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![]()
Marian MillerTrustindex 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![]()
Mark CagneyTrustindex 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 TrustindexTrustindex verified that these reviews were published on Cortech Plumbing's Google Business Profile. Learn more
You hear the full price before a tool comes out, and that number holds. Nothing is added once the job is under way.
We check the job and quote it at no cost.
The quote is the price, agreed before we begin.
Labour, parts and call-out listed, nothing added afterwards.
You hear the cost before anyone gets in the van
We work right across the city. Choose your area to see what we cover there.
Tell us the address and what the house is doing. You get an RGI-registered plumber, a clear diagnosis, and a fixed price before any work starts.
No obligation. Fixed quote before any work starts.