Domestic & General Insulation Ltd offers a range of home improvement solutions including a variety of insulation installations, gas and oil boiler installations, home heating solutions, solar installations and heat pump installations. The company has become one of the most trusted names in the insulation industry, having been in operation since 1986. DGI has a stellar track record of providing top quality insulation solutions and is also a pioneer in the cavity wall insulation sector, having produced the Thermabead insulation material.