Insulation & Heat Loss

Compare the best carpet underlay for cold floors in the UK by tog rating, thickness, comfort, durability and underfloor-heating compatibility.

Practical UK guidance for cold floors, including draughts between floorboards, rugs, suspended timber floor insulation, solid floors, ventilation and realistic energy savings.

Is secondary glazing worth it in the UK? Learn how much heat loss it can reduce, the main system types, condensation risks and how it compares with film and double glazing.

Compare the best window insulation film kits in the UK for single glazing, renters and larger windows, with current coverage, fitting method and retailer availability.

Does window insulation film work in the UK? Learn the difference between shrink film and low-E film, when it can reduce heat loss, condensation limits and whether it suits renters.

Compare the best thermal curtains in the UK for warmer rooms, blackout, pencil pleat and large windows, with current size, lining and fit guidance.

Do thermal curtains work in the UK? Learn when they reduce window heat loss, how to fit them correctly, what savings claims to avoid and when other upgrades matter more.

A practical UK guide to draught-proofing doors and windows safely, including the right seals for common gaps, ventilation warnings and when DIY fixes make sense.