Welcome to TWS Plumbing and Heating Ltd based in Calne, Wiltshire.

A Complete Bespoke Service

TWS Plumbing & Heating Ltd is on a journey to become the South West’s leading mechanical projects contractor known for delivering bespoke domestic heating, plumbing and mechanical ventilation projects with a focus on energy efficiency and the most up to date renewable technologies.

We are located in Calne, Wiltshire and cover all areas of Wiltshire, Bath and the South West.

At TWS Plumbing & Heating Ltd we have decades of knowledge and expertise throughout the Plumbing and Heating sector.

We pride ourselves with our quality of workmanship and are your local fully certified Gas Safe, OFTEC, HETAS & MCS accredited installers.

Heating and Renewable Energy Specialists

Our skill base allows us to cover the whole of the Plumbing & Heating sector from Gas and Oil fired central heating installations and servicing to installing wood burning stoves, bespoke bathrooms and wet rooms, and leadwork.

​We are MCS accredited for the design and installation of Biomass Boilers, Ground & Air Source Heat Pumps. TWS Plumbing & Heating Ltd are also recognised approved installers for many of the leading renewable energy manufacturers.  

Heating Services

• Domestic Oil, Gas & LPG Installations & Servicing
• ​Log Burning Stoves & Solid Fuel
• Specialists in Underfloor Heating

Renewable Energy

• Solid Fuel & Biofuel Heating Systems
• ​Ground Source Heat Pumps
• Air Source Heat Pumps

Government Accreditation

Having gone through the strict assessment process, we are delighted to achieve the Government backed MCS accreditation for MIS 3004 Solid Biofuel Heating Systems and MIS 3005 Air & Ground Source Heat Pumps.

We are therefore able to offer our customers all the Government RHI grants and tariffs associated with the MCS scheme.

Quality Assured National Warranties

Our heat pump and biomass installations come with a deposit and insurance backed guarantee provided by Quality Assured National Warranties. An insurance backed guarantee protects the homeowner should the installing contractor cease to trade and a defect with the installation appears. Our installations are also covered by a 2 year Workmanship Warranty once the work is completed.

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