Mark Group

Cavity Wall Insulation

Cavity Wall Insulation is one of the simplest ways to reduce your heating bills – by up to £90 per year *. You’ll also save 750kgs of CO₂ per year when it’s installed. Find out more »

Loft Insulation

Insulating your loft is one of the most effective ways to save energy. You could save up to £110 a year on bills and around 1 tonne of CO₂ per year*. Find out more »

Solar Hot Water

A Mark Group installed Solar Hot Water system aims to provide 50-70% of your water heating virtually FREE each year. And you could reduce your carbon emissions by up to 750kgs a year. Find out more »

Solar Electricity

Using state of the art technology to generate electricity from the sun’s rays – Solar Electricity is an easily maintainable source of renewable energy. Find out more »

Heat Pumps

An exciting technology providing heat to underfloor heating systems, without the need for groundworks – suitable for both new build properties and retrofit installations. Find out more »

Wind Turbines

Mark Group is the largest installer of domestic wind turbines in the UK.

We are reviewing our product offerings in this area. Our newest product should be available to market in mid 2008. Find out more »

Timber Frame Insulation

Timber frame construction is becoming increasingly popular in new homes. As an environmentally friendly building method – quality insulation installed by professionals is a must. Find out more »

External Wall Insulation

The Mark Group are currently researching new external wall insulation technology which will provide excellent thermal insulation properties. Find out more »