Insulation Scotland: Loft Insulation Installation

Loft insulation

Loft insulation is usually the simplest upgrade. Many older lofts have far less than today's recommended depth. Ventilation must be maintained to avoid condensation, and boarding for storage should be raised so insulation is not squashed.

Walls

Cavity walls on post-war homes can often be filled. Solid stone walls in tenements, cottages and villas need internal or external wall insulation, which must be breathable to avoid damp. Harled and rendered walls need careful detailing.

Floors and draughts

Suspended timber floors in older homes can be insulated from below. Draught-proofing doors, windows, loft hatches and floorboards is low-cost and makes a noticeable difference to comfort.

Insulation before a heat pump means a smaller, more efficient unit can do the job.

Scottish housing and heat loss

Scotland's homes include solid sandstone and granite tenements, rubble-built cottages, interwar cavity-wall houses, post-war no-fines concrete and timber-framed homes, and modern estates. Each loses heat differently. Solid stone walls need breathable approaches, often internal insulation with care around damp. Cavity walls can often be filled, though driving rain on exposed west-facing elevations needs to be considered. Timber kit homes usually benefit most from loft top-ups and draught-proofing.

Windows and doors are a large share of heat loss in older homes, especially original single-glazed sash and case windows. Conservation areas and listed buildings in places such as Edinburgh New Town, Stirling and many town centres have rules about what can be changed, so check with your council before ordering replacements.

How our survey works

Every project starts with a no-obligation survey. We look at your roof orientation, pitch, shading and condition, your fuse board and meter position, where a battery or inverter could go, and how your household uses electricity through the day and across the Scottish seasons. You then receive a written quote showing the equipment, the expected generation for your roof and the full price, so you can compare it fairly. We handle the network connection paperwork with your local distribution network operator, which is SP Energy Networks in central and southern Scotland and SSEN in the north, Highlands and islands. We install through MCS-certified partners. Solar panels and batteries are 0% VAT until March 2027. Finance available, subject to status.

Related guides

• Loft Insulation Scotland
• Where Scottish Homes Lose Heat
• Windows and Thermal Efficiency Scotland
• Which Energy Upgrade First?