Concise guides, honest product comparisons and local funding information to help you choose and carry out retrofit and renewable energy projects.

The sections

Home Insulation How to choose and install insulation for walls, roofs and floors. 8 guidesExplore Solar & Batteries Roof PV, inverters and battery storage explained for household use. 8 guidesExplore Water & Waste Rainwater, low-flow fittings, greywater and wastewater options. 4 guidesExplore Heating & Heat Pumps Guides to efficient heating systems, controls and heat-pump options. 3 guidesExplore Ventilation & Air Quality MVHR, extractor fans and practical ways to improve indoor air. 3 guidesExplore
kitchen faucet with water flow restricted
Start here · Water & Waste

Low flow faucet fix: 3 tests to find clogs, pressure or freeze damage

Step-by-step tests reveal whether clogs, pressure drops, or winter damage reduce your faucet’s water flow and how to fix each issue.
attic insulation being installed with a measuring tape Home Insulation

Home insulation R-values: when to upgrade and how to check aging loss

Check your home insulation’s R-values to reduce bills and drafts, and learn when and how to upgrade or improve aging materials safely.

13 articles inside heat pump unit installed outside a residential house Heating & Heat Pumps

What size heat pump fits 1500 sq ft and works with radiators or cylinders

Determine the correct heat pump size for a 1500 sq ft house and learn if it works with your radiators and hot water cylinder.

10 articles inside home solar battery bank installed on wall Solar & Batteries

Solar battery size for homes: how to calculate kWh capacity needed

Estimate your home's daily kWh use and pick the right solar battery size to cover it efficiently and cut electricity costs.

10 articles inside rectangular MVHR unit installed in a utility room with visible ducts Ventilation & Air Quality

How does an mvhr unit work

Learn how an MVHR unit works to ventilate homes efficiently while recovering heat and maintaining indoor air quality with practical checks and fault fixes.

5 articles inside