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Gastech Heating & Plumbing
Reliable plumbers serving Blackwood and the whole of South Wales

Here at Gastech, we pride ourselves on being one of the most reliable heating and plumbing companies in South Wales. Established since 1986, we have decades of experience and expertise behind us.

Reduce costs
Latest technology
Fully insured

Providing the plumbing services you need, when you need them

We provide a wide range of services to our clients, making sure that all plumbing requirements are taken care of quickly, efficiently, and affordably. We take huge in our work as well as our reputation, and we'll never offer less than our absolute best. 

Welcome to Gastech Heating & Plumbing!

Expert plumbers based in Blackwood

We are very happy to say that we are a Worcester Bosch Accredited Installer and Which? Trusted Trader. What this means for you is that we have been recognised as a reputable and trusted company and can assure you that the work we carry out is of a high standard.


When you use Gastech, we make sure that you get a fully insured and professional service. Our team is highly experienced, proactive and efficient in the work that they carry out, leaving your property in top condition.


Based in Blackwood, Gastech Heating & Plumbing are incredibly proud to offer a reliable and consistent service throughout South Wales, including Cardiff, Newport, and the surrounding locations. If you are seeking a plumber near me - we can help. 

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Boiler installations

We can install an efficient new boiler at a great price, helping you keep your property warm.

Plumbing repairs

Plumbing services

With a range of plumbing services available, our team are always on hand when you need them.

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Heating services

Make sure your heating is working properly and efficiently with servicing and more from our team.

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The plumbing expertise you need

Procedure from initial enquiry

When you call Gastech Heating & Plumbing, we will arrange for one of our experts to come out to you as quickly as possible and assess the situation. They will then return to the office in order to prepare a quotation, which will be sent via email / post and with no call out charge. When you approve the quotation, we will arrange an appropriate start date, providing you with an expected timescale for the work, ensuring you know what to expect.


All work, including any electrical work that needs to be carried out as part of the project, will be undertaken by a trained, qualified professional. All work will be registered with building control and backed up with essentially required certification. We always ensure that everything is safe for both you and our team - correct PPE will be worn at all times. We will respect your property and ensure that we leave the site clean and tidy.

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"Jason and his team recently replaced my Nan’s twenty-year-old oil fired central heating system. Right from the outset it was clear Jason is an expert and I had every confidence in his work, which was proven by the thoroughly professional installation he did. Jason replaced the oil tank, which involved making a new concrete base, buried the oil line under the patio and fitted an external Worcester-Bosch oil condensing boiler. Inside the property, Jason replaced every radiator and all of the pipework, there’s no visible damage to décor and all pipework is covered. Aside from it being clear the radiators, boiler and oil tank are new you’d have no idea so much work had just been undertaken. Dealing with Jason and seeing his work you can just tell you’re dealing with someone who does things properly. My Nan now has a completely new heating system that she’s really pleased with. Previously one room in the house was always colder, not anymore and each room now reaches the temperature it should. Jason thought of everything and I wouldn’t hesitate to use Jason in the future and cannot recommend him enough."

Nathan in Caerphilly - Which? Trusted Trader review

Contact a reliable plumbing and heating company in Blackwood

Let us know what you need, and we'll take care of it.

01495 222792