Plumbing Installation and Maintenance

Exothermic Installations Ltd professionally installing and maintaining all types and aspects of plumbing in the Swindon, Newbury and surrounding areas.


As experienced professional Plumbers of over 34 years, along with being Registered Plumbers (RP) with the Chartered Institute of Plumbing and Heating Engineers (CIPHE). We are fully Insured and guarantee all our work, parts and labour for 12 months. We provide a complete plumbing installation and maintenance service from start to finish including consultation, specification, design, installation and maintenance of all types of plumbing systems that best suit your individual situation and requirements.
Call us for plumbing maintenance or installation (no job too small), an estimate, a full quotation, or a consultation. You will be visited by an experienced and qualified plumbing installer who will carry out a repair, give friendly advise or may survey accordingly.

Plumbing Services We Carry Out

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Bathrooms and Wetrooms


We are experienced bathroom and wetroom installers. From the everyday bathroom suite to more bespoke arrangements, working with our friendly interior design colleagues - such as the creation of a wet room, with the installation of the drainage, heating or underfloor heating, lighting, ventilation and decoration. With the tiling or installation of stone or granite work tops and surfaces, or even stone baths or shower trays.

Cylinders,Thermal Stores, Buffers and Roof tanks


If it's Copper, Stainless Steel, Enamelled steel, Direct or Indirect, Vented or Unvented, Single coil, Twin coil, Multi coil, Single fuelled or Multi fuelled, with or without immersion heaters, a Cylinder, a Thermal store or a buffer that your after - We can do it!



If its Copper, Mildsteel, Polybutylene, Polyethylene, MDPE, Pex or MLCP(Alupex). Wether its threaded, soldered, push-fit, compression fit, machine expansion fit or machine press fit - We can do it!

Pressure Boosting


If you suffer from low mains pressure - and more people are, as the cheapest way to solve the water leakage problem in the mains supply network is to reduce the pressure. Then pressure boosting may help. There are various methods of doing this. Direct and Indirect methods involving booster pumps, Accumulators, break tanks (cisterns) or combinations of these. For the latter you do require some space to accommodate the equipment, but for a larger domestic or any commercial property, the improvement in performance and customer comfort levels can be enormous.



The ancient art and craft of Leadwork. With sustainability high on the agenda these days, Lead is 100% recyclable and correctly installed will last a lifetime - so its incredibly durable too. We have extensive Leadworking skills having spent time working on listed as well as Crown Estate and Heritage buildings over the years. We can do the everyday flashing of roof and wall abutments, to the more specialist Leadwork of dormers, valleys, flat roofs, spires or even hand made rainwater hoppers and pipework.



We have extensive guttering skills having spent time working on Listed as well as Crown Estate and Heritage buildings over the years. We have installed literally miles of guttering. Whether its deep, shallow, full flow, half round, square-line or ogee. Whether its made from plastic, galvanised steel, powder coated, cast iron, aluminium, zinc, copper or lead, - complete with all down pipes and hoppers - We can do it!

Above-ground Drainage


Above ground drainage generally refers to the soil and rain water removal from a building.

We have extensive plumbing skills having spent time working on new build, refurbishment as well as Listed, Crown Estate and Heritage buildings over the years. We have installed literally miles of soil and vent pipes. Whether its made from plastic - solvent weld or push fit, cast iron - mechanically jointed or lead caulked. Copper or lead with wiped joints.

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