Why this matters
Heat escapes through roofs, walls, floors, windows and doors which leaves rooms colder and pushes up bills. In an uninsulated home the biggest losses typically come from the walls and the roof. The good news is you can make a big difference with a few sensible upgrades that are affordable, simple to fit and effective straight away.
1) Insulate the loft
Warm air rises so the loft is usually the best first move.
- Mineral wool rolls are cost-effective and DIY friendly for between-and-over joists.
- PIR boards (e.g. Celotex) suit warm roof or tight-depth build-ups.
- Multifoil products help where space is limited and can be part of a layered system.
Tip: do not squash insulation and keep eaves ventilation clear.
2) Upgrade the walls
Poorly insulated walls lose a significant share of heat. The best option depends on construction.
- Cavity walls: blown mineral wool, beads or foam are injected into the gap for a quick win.
- Solid walls: add internal insulated boards or external insulation with render or cladding.
Professional assessment is recommended to check suitability and moisture control.
3) Improve the floors
Ground floors and suspended timber floors can feel chilly.
- Fit rigid boards or mineral wool between joists on suspended floors.
- Use insulation boards or an insulated overlay on solid slabs where height allows.
Seal gaps at skirtings to cut draughts.
4) Draught-proof key gaps
Air leakage is cheap to fix and pays back quickly. Use perimeter seals, brush strips, letterbox covers and decorators’ caulk around windows, doors, skirting and service penetrations. Even small gaps add up to noticeable heat loss.
5) Wrap pipes and ducts
Insulating hot-water pipes and ductwork with nitrile or foam sleeves reduces standing losses and can help prevent freezing in cold snaps.
6) Make windows work harder
If full replacement is not on the cards, you still have options.
- Secondary glazing film or panels
- Thermal curtains and well-fitting blinds
These measures reduce cold downdraughts and improve comfort in older homes.
7) Do not forget the loft hatch
Insulate the hatch itself and add a compressible seal around the frame so warm air does not pour into the roof space.
The pay-offs
- Lower energy bills each year
- More even temperatures across rooms and floors
- Quieter spaces with less outside noise
- Smaller carbon footprint from reduced energy use
- Buyer appeal thanks to better energy performance
Where to get what you need
At Buy Insulation you will find products for every area of the home, plus advice when you need it.
- Loft insulation rolls
- Celotex PIR boards for tight spaces and warm roofs
- Multifoil insulation for slim build-ups
- Pipe and duct insulation, sealants and tapes
Fast, reliable UK delivery with friendly support on quantities, specifications and product comparisons.
Need help deciding? Our team can talk you through options and put together a simple plan for your house. Speak to our team.
Stop the heat slipping away
Start with the loft, tackle the walls and floors, seal the draughts, then wrap services. Each step lifts comfort and trims bills. Whether you are going DIY or want trade-grade solutions, Buy Insulation has the materials and guidance to keep the warmth in and the costs down.
