Insulation, audits and smart controls.
How to choose · Energy efficiency
Start with measures that stop the largest and cheapest losses: draught-proofing, loft or roof insulation, and cavity or wall insulation where suitable, followed by floors and glazing. Order depends on construction, moisture risk and ventilation. A home energy audit or heat-loss assessment will show where heat escapes, and building type determines which techniques are safe.
Comparison · Energy efficiency
A professional audit uses diagnostic tools such as blower-door tests, thermal imaging and combustion safety checks to quantify losses and hazards, and may be required for some support schemes. A do-it-yourself walkthrough can find obvious gaps and appliance waste at no charge. Combine both: start with a self-check, then commission a professional audit for larger investments.
Problems & fixes · Energy efficiency
Condensation arises when warm, moist indoor air meets cold surfaces. Tighter buildings retain moisture unless ventilation is adequate, and insulation can move the cold point to new places. Distinguish condensation from rising damp or leaks, measure humidity, improve extraction in kitchens and bathrooms, keep trickle vents open, and seek professional diagnosis when patterns suggest a defect rather than lifestyle moisture.
Requirements · Energy efficiency
Energy labels summarise a product's consumption under standard test conditions and let you compare similar products. Check the rating class, the annual energy figure, capacity, programme used for testing and extra data such as noise and water use. Label systems differ by region and are periodically rescaled, so compare only products rated under the same scheme, and match capacity to household size.