Internal Wall Insulation (IWI)

Internal wall insulation is a practical alternative where external insulation is not suitable.

It involves installing insulation boards or a stud wall system on the internal face of external walls.

• Lower installation cost compared to EWI
• Can be installed room by room
• Improves thermal performance of solid walls

We use advanced systems such as the SWIP Internal Wall Insulation System, which minimises thermal bridging and delivers high performance with a slimmer profile.

External Wall Insulation (EWI)

External wall insulation is ideal for solid-wall properties, particularly homes built before the 1920s.

A layer of insulation is fixed to the outside of your property and finished with a protective render or cladding.

• Significant reduction in heat loss
• Improved weatherproofing and sound resistance
• Reduced draughts by sealing cracks and gaps
• Enhanced external appearance
• Increased wall lifespan

External wall insulation does not reduce internal floor space and can dramatically improve comfort and efficiency.

Loft Insulation

Loft insulation is one of the most cost-effective energy efficiency upgrades available.

Insulation is installed between joists or rafters to create a thermal barrier that reduces heat loss through the roof.

• Lower heating bills
• Improved home energy efficiency
• Reduced carbon emissions
• Long lifespan of over 40 years

Room-in-Roof Insulation

Room-in-roof insulation is designed for properties with converted loft spaces or sloped ceilings.

By insulating sloping ceilings, dormer walls, and stud walls, a continuous thermal envelope is created.

• Keeps loft rooms warm in winter and cool in summer
• Reduces heat loss from the entire property
• Improves comfort and usability year-round

This measure is particularly effective for bungalows and loft-converted homes.

Flat Roof Insulation

Flat roof insulation improves thermal performance and reduces condensation risk.

Depending on the structure, insulation can be installed as:

• Warm deck insulation (above the roof structure)
• Cold deck insulation (below the roof structure)

All installations comply with Building Regulations Approved Document L, achieving required U-values.

Flat roof insulation is often installed during roof replacement but can be added independently where suitable.

Suspended Floor Insulation

Suspended floor insulation is ideal for older properties with timber floors and crawl spaces underneath.

Insulation is installed between joists or beneath the floor to reduce draughts and heat loss.

• Warmer floors and reduced cold draughts
• Improved energy efficiency
• Reduced carbon emissions
• Increased comfort in living areas