Get quotes to fit an electric combi boiler

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By Emily Rivers
Last updated 4th May 2023

Electric Combi Boiler Cost Guide for 2023

Electric combi boilers are a great option for small homes, especially those that aren't on the gas grid. They work in a similar way to gas boilers, but use electricity to generate heat rather than gas. An electric combi boiler costs anywhere between £1,400-£6,000 to install, so what factors make up this cost?

How much is an electric heating boiler?

How much an electric boiler costs depends on the type of boiler you choose and its power output. Installation costs vary based on whether you’re replacing or getting a new electric combi boiler for the first time and where you live.

HaMuch has a large database of hourly rates for heating engineers across the country, but these are the average costs to expect:

Item

Average cost including installation

12kW boiler with no cylinder

£1,400-£3,500

12kW boiler with integrated cylinder

£2,000-£4,000

10-18kW floor-standing boiler

£2,700-£6,000

Cost to install an electric boiler

What affects the cost of installing an electric combi boiler?

There are a few factors that affect the cost of installing an electric boiler:

Type of boiler

An electric combi boiler with a built-in cylinder will cost more than one that supplies water from the mains. This is generally due to the amount of working parts inside the boiler. Electric combined primary storage units, or CPSUs, are large electric boilers that are suitable for larger households or commercial properties, and these will cost much more.

Electric boiler brand

The brand and model of electric boiler you choose will affect the cost. Well-known brands will be more expensive, but they could be more reliable and they often come with longer warranties.

Electric boiler brand/model

Price range

Heatrae Sadia Amptec

£600-£1,550

Heatrae Sadia Electromax

£2,000-£5,800

EHC Comet

£2,400-£3,900

Advance Appliances

£350-£2,500

Whether the boiler is solar-compatible

Electric boilers that are compatible with solar panels may cost more, but in the long term they may save you money. As of March 2023, electricity is around 3.5 times more expensive than gas per unit, so electric boilers aren’t cheap to run. But if you power your electric combi boiler with solar panels that generate free electricity from the sun, your only costs will be the installation of the boiler and the panels.

If you get a solar battery storage system installed alongside your solar panels, you can store unused electricity generated in the day to use at night, which is ideal if you’re not home in the day to use the heating.

Whether it’s a new installation or replacement

Replacing an electric boiler will always be easier than installing a new electric central heating system, so expect your heating engineer to be around longer if they’re fitting a new electric boiler from scratch. That means you’ll spend more on labour.

Whether you want to move your boiler

If you want or need to move your boiler to another location, you’ll probably need new pipework and wiring. Installing new pipework and wiring will take the engineer longer, so again, you’ll pay more in labour.

Whether you choose a local or national engineer

While national boiler installation companies may have more availability and have lots of glossy brochures to show you, they generally charge more to install an electric combi boiler. Local heating engineers generally have fewer overheads than national companies, so it’s best to stick with a trusted tradesperson in your area.

Electric boiler running costs

Electric boilers do cost more to run than gas boilers, but you might be surprised to learn that it’s not as bad as it seems.

While electricity rates are around 3.5 times higher than gas per unit, electric boilers don’t use as much energy as gas boilers. On average, an electric combi boiler will use less than half the energy of a gas or oil boiler of the same size.

For example, a gas boiler in an average detached house will use around 23,000kW (kilowatts) of gas per year, while the equivalent electric boiler will use just 9,100kW. That means that a gas boiler will cost approximately £2,300 per year to run, while an electric boiler will cost £3,094 to run.

The electric boiler may still cost more to run, but if you don’t have a mains gas supply it’s certainly worth considering installing one. Electric radiators or night storage heaters will cost even more, and you’ll still need to consider how you’ll heat your hot water.

Can you run radiators off an electric boiler?

Yes, you can run radiators off an electric boiler – and this is one of the main benefits of electric combi boilers. You can have a ‘wet’ central heating system, the same system used by gas boilers, even if you’re not connected to mains gas.

The number of radiators you’ll need affects how powerful you’ll need your boiler to be. It’s best to speak to a heating engineer so they can recommend the best electric boiler to be, but the general rule is to add 1.5kW of power for each radiator. For example, if you have 8 radiators your electric boiler will need to be 12kW.

Should I replace gas central heating with electric?

If you have gas central heating already, it’s probably not worth replacing it with electric central heating. That’s because while not as expensive as some people think, it still costs more to run an electric combi boiler than a gas one.

However, if you have solar panels, it’s well worth considering replacing your gas central heating with electric. Choose an electric boiler that’s compatible with solar and you can power it using free solar electricity, meaning you’ll save on monthly heating costs and reduce your reliance on the National Grid.

If you’re not connected to mains gas and have a small home, an electric combi boiler is a great option. If you’re ready to compare prices, post your job on HaMuch to get quotes from qualified heating engineers in your area.


Estimates for common electrician jobs;

Rates for other trades

Install an electric boiler cost in the UK
Install an electric boiler cost in the UK (excluding VAT or callout charges)
Location in UKInstall an electric boiler cost
Install an electric boiler near Aberdeen£1310
Install an electric boiler near Amber Valley£1075
Install an electric boiler near Angus£1115
Install an electric boiler near Arun£1140
Install an electric boiler near Ashfield£1085
Install an electric boiler near Aylesbury Vale£1275
Install an electric boiler near Barnsley£1155
Install an electric boiler near Basildon£1315
Install an electric boiler near Basingstoke & Deane£1310
Install an electric boiler near Bassetlaw£1205
Install an electric boiler near Bath & North East Somerset£1250
Install an electric boiler near Bedford£1285
Install an electric boiler near Belfast£895
Install an electric boiler near Birmingham£1135
Install an electric boiler near Blackburn£1110
Install an electric boiler near Blackpool£1180
Install an electric boiler near Bolton£1115
Install an electric boiler near Bournemouth£1190
Install an electric boiler near Bracknell Forest£1360
Install an electric boiler near Bradford£1140
Install an electric boiler near Braintree£1235
Install an electric boiler near Breckland£1240
Install an electric boiler near Bridgend£1080
Install an electric boiler near Brighton£1170
Install an electric boiler near Bristol£1220
Install an electric boiler near Broadland£1300
Install an electric boiler near Broxtowe£1090
Install an electric boiler near Bury£1115
Install an electric boiler near Caerphilly£1055
Install an electric boiler near Calderdale£1110
Install an electric boiler near Cambridge£1250
Install an electric boiler near Canterbury£1145
Install an electric boiler near Cardiff£1070
Install an electric boiler near Carmarthenshire£1065
Install an electric boiler near Charnwood£1130
Install an electric boiler near Chelmsford£1300
Install an electric boiler near Cheltenham£1235
Install an electric boiler near Cherwell£1250
Install an electric boiler near Chester£1095
Install an electric boiler near Colchester£1195
Install an electric boiler near Conway£1535
Install an electric boiler near Coventry£1155
Install an electric boiler near Crewe & Nantwich£1035
Install an electric boiler near Dacorum£1315
Install an electric boiler near Derby£1070
Install an electric boiler near Doncaster£1210
Install an electric boiler near Dover£1105
Install an electric boiler near Dudley£1125
Install an electric boiler near Dumfries & Galloway£1160
Install an electric boiler near Dundee£1255
Install an electric boiler near East Ayrshire£1170
Install an electric boiler near East Devon£1115
Install an electric boiler near East Dunbartonshire£1335
Install an electric boiler near East Hampshire£1250
Install an electric boiler near East Hertfordshire£1315
Install an electric boiler near East Lindsey£950
Install an electric boiler near East Riding£1110
Install an electric boiler near Eastleigh£1280
Install an electric boiler near Edinburgh£1220
Install an electric boiler near Elmbridge£1385
Install an electric boiler near Epping Forest£1365
Install an electric boiler near Erewash£1085
Install an electric boiler near Exeter£1105
Install an electric boiler near Falkirk£1280
Install an electric boiler near Fife£1140
Install an electric boiler near Flintshire£1090
Install an electric boiler near Gateshead£1150
Install an electric boiler near Gedling£1090
Install an electric boiler near Glasgow£1320
Install an electric boiler near Gloucester£1185
Install an electric boiler near Guildford£1360
Install an electric boiler near Gwynedd£1225
Install an electric boiler near Halton£1105
Install an electric boiler near Harrogate£1125
Install an electric boiler near Havant & Waterloo£1255
Install an electric boiler near Horsham£1275
Install an electric boiler near Huntingdonshire£1255
Install an electric boiler near Ipswich£1170
Install an electric boiler near Isle of Wight£1255
Install an electric boiler near Kings Lynn & West Norfolk£1190
Install an electric boiler near Kingston-upon-Hull£1105
Install an electric boiler near Kirklees£1110
Install an electric boiler near Knowsley£1120
Install an electric boiler near Lancaster£1140
Install an electric boiler near Leeds£1155
Install an electric boiler near Leicester£1180
Install an electric boiler near Lisburn£895
Install an electric boiler near Liverpool£1125
Install an electric boiler near London£1370
Install an electric boiler near Luton£1300
Install an electric boiler near Macclesfield£1120
Install an electric boiler near Maidstone£1280
Install an electric boiler near Manchester£1115
Install an electric boiler near Mid Bedfordshire£1275
Install an electric boiler near Mid Sussex£1245
Install an electric boiler near Middlesbrough£1160
Install an electric boiler near Milton Keynes£1265
Install an electric boiler near Neath Port Talbot£1100
Install an electric boiler near New Forest£1250
Install an electric boiler near Newbury£1305
Install an electric boiler near Newcastle-under-Lyme£1040
Install an electric boiler near Newcastle-upon-Tyne£1145
Install an electric boiler near Newport£1075
Install an electric boiler near North Ayrshire£1260
Install an electric boiler near North East Lincolnshire£1070
Install an electric boiler near North Hertfordshire£1295
Install an electric boiler near North Lanarkshire£1325
Install an electric boiler near North Lincolnshire£1165
Install an electric boiler near North Somerset£1205
Install an electric boiler near North Tyneside£1145
Install an electric boiler near North Wiltshire£1305
Install an electric boiler near Northampton£1280
Install an electric boiler near Norwich£1305
Install an electric boiler near Nottingham£1085
Install an electric boiler near Nuneaton & Bedworth£1165
Install an electric boiler near Oldham£1110
Install an electric boiler near Oxford£1255
Install an electric boiler near Pembrokeshire£985
Install an electric boiler near Perth & Kinross£1220
Install an electric boiler near Peterborough£1245
Install an electric boiler near Plymouth£1140
Install an electric boiler near Poole£1200
Install an electric boiler near Portsmouth£1260
Install an electric boiler near Powys£1090
Install an electric boiler near Preston£1150
Install an electric boiler near Reading£1320
Install an electric boiler near Redcar & Cleveland£1200
Install an electric boiler near Reigate & Banstead£1380
Install an electric boiler near Renfrewshire£1320
Install an electric boiler near Rhondda, Cynon, Taff£1080
Install an electric boiler near Rochdale£1120
Install an electric boiler near Rotherham£1115
Install an electric boiler near Salford£1115
Install an electric boiler near Salisbury£1170
Install an electric boiler near Sandwell£1135
Install an electric boiler near Scarborough£1125
Install an electric boiler near Sefton£1135
Install an electric boiler near Sevenoaks£1325
Install an electric boiler near Sheffield£1100
Install an electric boiler near Slough£1350
Install an electric boiler near Solihull£1145
Install an electric boiler near South Ayrshire£1240
Install an electric boiler near South Bedfordshire£1285
Install an electric boiler near South Cambridgeshire£1260
Install an electric boiler near South Gloucestershire£1235
Install an electric boiler near South Kesteven£1155
Install an electric boiler near South Lanarkshire£1275
Install an electric boiler near South Oxfordshire£1270
Install an electric boiler near South Somerset£1125
Install an electric boiler near South Tyneside£1145
Install an electric boiler near Southampton£1280
Install an electric boiler near Southend-on-Sea£1275
Install an electric boiler near St Albans£1325
Install an electric boiler near St Helens£1095
Install an electric boiler near Stafford£1120
Install an electric boiler near Stockport£1120
Install an electric boiler near Stockton-on-Tees£1155
Install an electric boiler near Stoke-on-Trent£1045
Install an electric boiler near Stratford-on-Avon£1170
Install an electric boiler near Stroud£1185
Install an electric boiler near Suffolk Coastal£1185
Install an electric boiler near Sunderland£1150
Install an electric boiler near Swale£1230
Install an electric boiler near Swansea£1095
Install an electric boiler near Tameside£1125
Install an electric boiler near Teignbridge£1075
Install an electric boiler near Tendring£1165
Install an electric boiler near Test Valley£1235
Install an electric boiler near Thamesdown£1300
Install an electric boiler near Thanet£1115
Install an electric boiler near The Wrekin£1035
Install an electric boiler near Thurrock£1325
Install an electric boiler near Torbay£1100
Install an electric boiler near Trafford£1110
Install an electric boiler near Vale of Glamorgan£1080
Install an electric boiler near Vale of White Horse£1230
Install an electric boiler near Vale Royal£1105
Install an electric boiler near Wakefield£1145
Install an electric boiler near Walsall£1130
Install an electric boiler near Warrington£1080
Install an electric boiler near Warwick£1175
Install an electric boiler near Waveney£1275
Install an electric boiler near Waverley£1350
Install an electric boiler near Wealden£1255
Install an electric boiler near West Lancashire£1120
Install an electric boiler near West Lothian£1205
Install an electric boiler near West Wiltshire£1305
Install an electric boiler near Wigan£1085
Install an electric boiler near Windsor & Maidenhead£1355
Install an electric boiler near Wirral£1145
Install an electric boiler near Wokingham£1345
Install an electric boiler near Wolverhampton£1130
Install an electric boiler near Wrexham Maelor£1070
Install an electric boiler near Wychavon£1170
Install an electric boiler near Wycombe£1305
Install an electric boiler near York£1140