KNW Heating, Insulation & Renewable Energy click for Home page Home About us What we do Our linksContact us

Get a new boiler
 from £19 a month 

Freephone on 0800 378 493  


Heating services

Heating systems

KNW carries out installations and repair of Gas, LPG and oil central heating systems. All our work is carried out by GAS SAFE and OFTEC registered engineers.

Boiler servicing

Having gas appliances (such as your boiler or gas fire) serviced on an annual basis will ensure that they are operating safely and efficiently, saving you money on the operating cost.

Landlord CP12

KNW offers a service to Landlords to ensure that all gas installation pipework, gas appliances and flue systems in rental properties are maintained in a safe condition and meet regulations


KNW employs highly skilled and qualified Electrical Engineers for the installation and repair of electrical appliances. Electrical work is fully compliant with current building regulations.

Our links
Gas Safe Logo CIGA - Cavity Insulation Guarantee Agency National Installers Association Logo British Board of Agrément (BBA) Logo Rockwool Logo
NICEIC Logo SIG Insulation Logo The Department of Energy & Climate Change Logo National Energy Action Loho Energy Savings Trust Logo
Sustainable Sunderland Logo - Sunshine