Every upgrade, explained for your home
8 ways to cut what your home costs to run. Each guide covers the price, the grants, the running costs and — the part most sites skip — whether it suits a property like yours at all.
- The case against, tooEvery guide says who should skip the measure, or do something else first.
- Prices from real quotesCost bands by property type and region, with grants taken off.
- Nobody pays to be hereInstallers are listed from public certification records, not advertising.
Heating
How the house gets warm, and what it costs to keep it that way.
3 guides
Heat pumps
Will one heat your home, and what will it really cost to run?
Installed cost
£11,128–£15,627
EPC method, heat pump£5,000–£30,000
Read the guide
Boilers
Replacing an old boiler, and whether to move off gas altogether.
Installed cost
£1,800–£3,500
EPC method, condensing boiler£2,200–£3,500
Read the guide
Heating controls
Low-cost changes that cut bills in almost any home.
Typical spend
£0–£400
EPC method, heating controls£220–£250
Read the guide
Energy
Making, storing and using your own electricity.
3 guides
Solar panels
Expected generation and payback for your roof and region.
Installed cost
£8,000–£10,000
Read the guide
Home batteries
How much you could store, and save, on your tariff.
Installed cost
£3,500–£8,000
EPC method, battery£500–£5,000
Read the guide
EV chargers
Home charging costs, installation and smart tariffs.
Installed cost
£800–£1,400
Read the guide
Insulation
Keeping the heat you have already paid for.
2 guides
Insulation
Loft, cavity and solid wall options for how your home was built.
Loft top-up
£400–£900
EPC method, cavity wall insulation£900–£1,500
Read the guide
Windows & doors
When new glazing is worth it, and when your money goes further elsewhere.
Whole-house double glazing
£6,000–£15,000
EPC method, double glazing£4,500–£6,000
Read the guide
Illustrative. A headline figure without a note under it is a placeholder showing what the guide will hold; real ranges arrive with the quote data behind them.
The EPC method's figure is real: the indicative range the energy certificate method puts on that measure, from certificates lodged in the year to 9 September 2026. It is the same for every home, so it is a guide rather than a quote.
Not sure where to start?
The right order depends on the property. Start with your postcode and we'll work from what is already known about it.