Gas boiler prices

Gas is the most common method used to fuel boilers and heat homes in the UK. There is a wide range of gas boilers available to choose from, it can be hard to determine what the best gas boiler for your home may be but we’re here to help.

There are three types of gas boilers; combi (combination), system and heat-only. The most popular boiler type is the combi boiler because of their compact size and energy efficiency.

Compare gas boiler brands

Out of all the brands we’ve researched, the choice of brand for oil boilers is limited to just Worcester Bosch. That’s not necessarily limiting though, as Worcester Bosch offer fantastic products which are endorsed by Which? Best Buy for eight years and have a Trustpilot rating of 9.3/10 as of 30/10/17.

The Worcester Bosch oil boilers are all within the Greenstar range but include the models Danesmoor, Utility and Heatslave. There is a total of 18 different boilers to choose from which are suitable for a range of homes.

Here are just some of the market leading brands that we offer which produce gas boilers:

New gas boiler price range (£475 - £2,710*)

Gas boilers are powered by natural gas which is piped into homes using an underground network of pipes. Gas being as widely available in the UK as it is, make gas fuelled boilers a common choice for a new boiler installation. Gas could also be the cheapest fuel option. If you have a gas boiler you will have a gas meter in your home.

Here is a guide to the price range of each boiler type when fuelled gas:

Combi: £470.45 - £2,386.68

Heat-Only: £480.70 - £2,707.48

System: £575 - £1,453.62

The kW outputs of the gas boiler range generally start at 12kW and increase up to 40kW for domestic properties, so there should be a boiler for every home. Warranties on gas boiler can range from 1 year up to 10 years depending on the manufacturer and specific model.

Why choose a gas boiler

Heating your home with a gas boiler could be cheaper than using another fuel type such as electricity or oil which are typically expensive methods to power a boiler. Here are some of the advantages to installing a gas boiler:

New gas boilers are typically very energy efficient and condensing

As it’s the most common fuel type, gas boiler products are competitively priced

Gas is usually the cheapest and most accessible type of fuel

Natural gas is one of the cleanest fossil fuels and produces less CO2 than coal or oil

Compare gas boiler prices

BrandModel NameTypeFuelKWWarrantyTypical Price*
(Including VAT)
VokeraEasi-Heat 18VHeat-OnlyGas20kW5£399.17
BiasiRiva Plus ERP 24CombiGas24kW2£478.80
VokeraMyNute 15VHEHeat-OnlyGas15kW2£442.00
VokeraCompact 25ACombiGas25kw2£499.00
VokeraMyNute 20VHEHeat-OnlyGas20kW2£492.00
BiasiRiva Plus ERP 28CombiGas28kW2£526.80
AristonCLAS HE 24Heat-OnlyGas24kW2£585.00
Baxi212 Heat 12Heat-OnlyGas12kW3£630.00
Baxi412 Heat 12Heat-OnlyGas12kW5£650.00
VokeraMynute i20SystemGas20kw2£521.00
AlphaE-TEC 28CombiGas28kw5£538.80
Baxi215 Heat 15Heat-OnlyGas15kW3£660.00
VokeraCompact 29ACombiGas29kw2£539.00
Worcester-BoschGreenstar 12RiHeat-OnlyGas12kW5£807.76
Ferrolii29CombiGas27kW2£549.60
PottertonGold 24CombiGas24kW2£571.00
Baxi124CombiGas24kW2£574.80
Glow-WormEasicom 24cCombiGas24kW4£575.00
Baxi415 Heat 15Heat-OnlyGas15kW5£675.00
AlphaEco2 PlusCombiGas28kw6£580.00
Worcester-BoschGreenstar 15RiHeat-OnlyGas15kW5£836.08
PottertonPromax SL Heat 12Heat-OnlyGas12kW2£695.88
AlphaE-TEC 33CombiGas33kw5£586.80
VokeraVision 25cCombiGas25kw5£602.00
Baxi418 Heat 18Heat-OnlyGas18kW5£705.00
BiasiRiva Plus ERP 28SystemGas28kW2£526.80
Glow-WormEnergy 15Heat-OnlyGas15kW2£708.76
Worcester-BoschGreenstar 18RiHeat-OnlyGas18kW5£899.16
BiasiRiva Plus ERP 24SystemGas24kW2£539.99
FerroliModena 32c HECombiGas32kW5£611.18
Baxi224 Heat 24Heat-OnlyGas24kW3£714.00
Glow-WormEnergy 12Heat-OnlyGas12kW2£718.76
FerroliModena 27c HECombiGas27kw5£612.75
VokeraVision 20sSystemGas20kw5£545.00
Glow-WormEasicom 28cCombiGas28kW4£615.00
Worcester-BoschGreenstar 24RiHeat-OnlyGas24kW5£954.62
Baxi128CombiGas28kW2£622.80
VaillantecoTEC plus 412Heat-OnlyGas12kW8£734.39
AlphaEVOKE 28CombiGas28kw5£625.00
AlphaInTec2 28XECombiGas28kw3£634.80
BaxiEcoBlue Heat 12Heat-OnlyGas12kW2£736.66
PottertonGold 18SystemGas18kW2£566.00
Baxi230 Heat 30Heat-OnlyGas30kW3£750.00
Baxi424 Heat 24Heat-OnlyGas24kW5£755.00
Glow-WormEnergy 18Heat-OnlyGas18kW2£771.26
Glow-WormEnergy 25Heat-OnlyGas25kW2£773.75
VokeraVision 30cCombiGas30kw5£635.00
BiasiInovia ERP 25CombiGas25kW5£636.00
BaxiEcoBlue Advance Heat 13Heat-OnlyGas13kW7£780.16
BiasiAdvance Plus ERP 25CombiGas25kW5£639.99
AlphaEVOKE 33CombiGas33kw5£655.00
Worcester-BoschGreenstar 25iCombiGas25kW5£988.32
BiasiInovia ERP 30CombiGas30kW5£660.00
BaxiEcoBlue Heat 15Heat-OnlyGas15kW2£783.10
Glow-WormUltimate2 30CombiGas30kW5£668.40
IdealLogic ESP1 24CombiGas24kW2£668.98
BiasiAdvance Plus ERP 30CombiGas30kW5£674.99
IdealLogic Heat 24Heat-OnlyGas24kW2£792.51
Worcester-BoschGreenstar 28CDi CompactCombiGas28kW5 £1,041.88
BiasiInovia ERP 35CombiGas35kW5£684.00
BiasiAdvance Plus ERP 35CombiGas35kW5£699.99
Glow-WormEnergy 25CombiGas25kW2£700.00
AristonCLAS HE SYSTEM evo 18SystemGas18kW5£575.00
IdealLogic Heat 15Heat-OnlyGas15kW2£810.18
FerroliModena 18s HESystemGas18kw5£578.39
Baxi224CombiGas24kW3£714.00
AristonCLAS HE evo 38CombiGas38kW2£715.00
VokeraUnica i28CombiGas28kw5£717.00
VokeraVision 25sSystemGas25kw5£581.00
Baxi428CombiGas28kW5£720.00
PottertonTitanium 24CombiGas24kW7£738.00
IdealLogic Heat 12Heat-OnlyGas12kW2£817.50
BiasiAdvance Plus ERP 16SystemGas16kW5£582.00
PottertonGold 24SystemGas24kW2£589.00
Baxi228CombiGas28kW3£754.80
Baxi424CombiGas24kW5£755.00
IdealLogic ESP1 30CombiGas30kW2£760.79
AlphaInTec2 25XECombiGas25kw2£774.09
IdealLogic Plus 24CombiGas24kW7£777.60
VokeraMynute i30SystemGas30kw2£596.00
Glow-WormUltimate2 35CombiGas35kW2£786.00
Glow-WormEnergy 30CombiGas30kW2£787.50
BaxiEcoBlue+ 24CombiGas24kW7£790.80
FerroliModena 25s HESystemGas25kw5£596.13
PottertonGold 28SystemGas28kW2£609.00
BiasiAdvance Plus ERP 25SystemGas25kW5£609.99
FerroliModena 38c HECombiGas38kw5£791.87
BiasiInovia System ERP 25SystemGas25kW5£624.00
BiasiAdvance Plus ERP 30SystemGas30kW5£629.99
FerroliModena 32s HESystemGas32kw5£659.55
BaxiDuo-tec 28 LPGCombiGas28kW7£795.93
PottertonTitanium 28CombiGas28kW7£798.00
VaillantecoTEC plus 415 15Heat-OnlyGas15kW8£825.27
AristonCLAS HE evo 24CombiGas24kW5£799.00
Baxi430 Heat 30Heat-OnlyGas30kW5£830.00
AristonCLAS HE SYSTEM evo 30SystemGas30kW5£675.00
VokeraUnica i32CombiGas32kw5£799.99
ViessmannWB1B Vitodens 100-W 19Heat-OnlyGas19kW3£832.65
AristonE-SYSTEM evo 24SystemGas24kW5£687.22
Glow-WormEnergy 12SystemGas12kW2£727.50
ViessmannBPJD Vitodens 050-W 29CombiGas29kW5£827.99
IdealLogic 24CombiGas24kW2£829.07
PottertonPromax Ultra 24CombiGas24kW2£833.61
VokeraEvolve C 24CombiGas24kw7£834.00
Glow-WormEnergy 15SystemGas15kW2£746.26
AristonE-SYSTEM evo 30SystemGas30kW5£751.60
Worcester-BoschGreenstar 27RiHeat-OnlyGas27kW5 £1,053.53
AlphaInTec2 30CECombiGas30kw5£835.20
PottertonPromax System 12SystemGas12kW2£768.68
Glow-WormEnergy 18SystemGas18kW2£773.75
AristonCLAS HE evo 30CombiGas30kW5£839.00
BaxiPlatinum 24CombiGas24kW10£849.47
AristonCLAS HE SYSTEM evo 24SystemGas24kW5£799.00
ViessmannWB1B Vitodens 100-W 13Heat-OnlyGas13kW3£836.13
Worcester-BoschGreenstar 25Si CompactCombiGas25kW5 £1,088.00
AlphaCD13RHeat-OnlyGas13kw3£840.28
BaxiDuo-tec 24CombiGas24kW7£849.60
PottertonTitanium 33CombiGas33kW7£858.00
BaxiMegaflo System 15SystemGas15kW7£808.30
VaillantecoFIT pure 612SystemGas12kW7£821.20
AristonE-evo 38CombiGas38kW5£858.08
Worcester-BoschGreenstar 30iCombiGas30kW5 £1,089.41
VaillantEcoFIT pure 825CombiGas25kW7£868.74
VokeraEvolve C 28CombiGas28kw7£870.00
IdealLogic Plus 30CombiGas24kW7£870.00
IdealLogic System 15SystemGas15kW2£825.88
Glow-WormEnergy 25SystemGas25kW2£826.25
Glow-WormEnergy 30Heat-OnlyGas30kW2£843.76
ViessmannWB1B Vitodens 100-W 16Heat-OnlyGas16kW5£847.14
IdealLogic ESP1 35CombiGas35kW2£872.08
BaxiEcoBlue Heat 18Heat-OnlyGas18kW2£856.59
VokeraMynute i35SystemGas35kW2£837.59
VaillantecoTec plus 612SystemGas12kW8£850.34
VaillantHome 25CombiGas25kW2£882.00
Glow-WormEnergy 30SystemGas30kW2£851.26
VokeraUnica i36CombiGas36kw5£885.00
BaxiEcoBlue+ 28CombiGas28kW7£886.80
BaxiEcoBlue Advance Heat 16Heat-OnlyGas16kW7£868.27
BaxiDuo-tec 28CombiGas28kW7£886.80
VokeraEvolve C 32CombiGas32kw7£894.00
Worcester-BoschGreenstar 29CDi ClassicCombiGas29kW5 £1,102.77
IdealLogic System 18SystemGas18kW2£863.15
Worcester-BoschGreenstar 9iSystemGas9kW5£873.04
AlphaInTec2 35CECombiGas35kw5£901.20
PottertonPromax System 24SystemGas24kW1£882.28
ViessmannWB1B Vitodens 100-W 26Heat-OnlyGas26kW3£886.38
VaillantecoFIT pure 615SystemGas15kW7£884.30
VaillantecoTEC Pro 24CombiGas24kW6£902.12
BaxiEcoBlue Heat 21Heat-OnlyGas21kW2£887.44
BaxiEcoBlue System 12SystemGas12kW5£896.58
VaillantecoTec plus 615SystemGas15kW8£898.35
ViessmannBPJD Vitodens 050-W 35CombiGas35kW3£906.45
AlphaInTec2 26CECombiGas26kw5£908.28
BaxiDuo-tec 33CombiGas33kW7£914.73
BaxiEcoBlue Advance 24CombiGas24kW10£918.48
IdealLogic 30CombiGas30kW2£929.89
PottertonTitanium 40CombiGas40kW7£930.00
PottertonPromax 28CombiGas28kW2£930.86
Glow-WormEnergy 35CombiGas35kW2£931.25
VaillantecoTEC plus 418Heat-OnlyGas18kW8£888.09
Worcester-BoschGreenstar 30RiHeat-OnlyGas30kW5 £1,109.18
IdealLogic System 24SystemGas24kW2£900.23
BaxiPlatinum 28CombiGas28kW10£944.79
BaxiMegaflo System 18SystemGas18kW7£908.74
VokeraMynute 35HEHeat-OnlyGas35kw2£894.71
BaxiEcoBlue System 15SystemGas15kW5£917.91
BaxiEcoBlue Heat 24Heat-OnlyGas24kW2£898.35
BaxiMegaflo System 24SystemGas24kW7£918.98
Worcester-BoschGreenstar 12iSystemGas12kW5£926.32
IdealLogic Heat 30Heat-OnlyGas30kW2£900.56
BaxiDuo-tec 40CombiGas40kW7£982.05
IdealLogic Heat 18Heat-OnlyGas18kW2£902.51
IdealVogue 15SystemGas15kW8£931.45
VaillantecoFIT pure 618SystemGas18kW7£936.38
IdealLogic System 30SystemGas30kW2£937.39
VaillantHome 30CombiGas30kW2£984.00
Worcester-BoschGreenstar 30CDi ClassicHeat-OnlyGas30kW5 £1,124.40
VaillantEcoFIT pure 830CombiGas30kW7£988.97
VaillantEcoFIt sustain 830CombiGas30kW5£988.97
BaxiMegaflo System 28SystemGas28kW7£950.49
BaxiEcoBlue System 18SystemGas18kW5£957.51
VaillantecoTEC Pro 28CombiGas28kW6£989.72
BaxiMegaflo System 32SystemGas32kW7£974.32
IdealLogic Plus Heat 15Heat-OnlyGas15kW5£906.25
VokeraEvolve C 36CombiGas36kw7£990.00
BaxiEcoBlue Advance Heat 19Heat-OnlyGas19kW7£910.22
AlphaInTec2 20SESystemGas20kw5£974.82
IdealVogue S15 Gen2SystemGas15kW8£979.04
IdealLogic Plus 35CombiGas35kW7£996.00
BaxiEcoBlue Advance Heat 25Heat-OnlyGas25kW7£917.70
IdealLogic Plus Heat 12Heat-OnlyGas12kW5£937.99
BaxiEcoBlue+ 33CombiGas33kW7 £1,006.02
Worcester-BoschGreenstar 15iSystemGas15kW5£980.69
VaillantecoTEC plus 424 24Heat-OnlyGas24kW8£948.51
VaillantecoTec plus 618SystemGas18kW8£997.24
BaxiEcoBlue Advance Heat 30Heat-OnlyGas30kW7£950.74
Worcester-BoschGreenstar 30Si CompactCombiGas30kW5 £1,134.99
IdealLogic Plus 15SystemGas15kW7 £1,001.88
IdealVogue 18SystemGas18kW8 £1,014.30
AlphaCD18RHeat-OnlyGas18kw3£962.67
Worcester-BoschGreenstar 32CDi CompactCombiGas32kW5 £1,138.72
IdealLogic Plus Heat 24Heat-OnlyGas24kW5£981.16
VaillantecoTEC plus 430Heat-OnlyGas30kW8 £1,005.15
ViessmannB1KC Vitodens 100-W 26CombiGas26kW5 £1,051.62
BaxiEcoBlue Advance 28CombiGas28kW10 £1,056.48
IdealLogic Plus Heat 18Heat-OnlyGas18kW5 £1,024.75
IdealVogue GEN2 C26CombiGas26kW8 £1,056.66
ViessmannB1HC Vitodens 100-W 19SystemGas19kW5 £1,027.48
IdealLogic Plus 18SystemGas18kW7 £1,042.33
IdealLogic 35CombiGas35kW2 £1,058.40
BaxiEcoBlue System 24SystemGas24kW5 £1,047.46
VokeraLinea One 38CombiGas38kw5 £1,069.99
Worcester-BoschGreenstar 34CDi ClassicCombiGas34kW5 £1,226.33
BaxiPlatinum 33CombiGas33kW10 £1,088.31
Worcester-BoschGreenstar 36CDi CompactCombiGas36kW5 £1,282.40
Worcester-BoschGreenstar 18iSystemGas18kW5 £1,050.63
VaillantecoTEC Pro 30CombiGas30kW6 £1,090.01
ViessmannB1KC Vitodens 100-W 30CombiGas30kW5 £1,099.05
IdealMexico HE 15Heat-OnlyGas15kW2 £1,068.17
AlphaInTec2 30SESystemGas30kw5 £1,052.46
Worcester-BoschGreenstar 21iSystemGas21kW5 £1,057.88
Worcester-BoschGreenstar 38CDi ClassicCombiGas38kW5 £1,387.45
VaillantecoTEC plus 825CombiGas25kW8 £1,120.04
PottertonPromax SL Heat 15Heat-OnlyGas15kW2 £1,071.60
AlphaCD24RHeat-OnlyGas24kw3 £1,075.92
Worcester-BoschGreenstar FS 30CDiHeat-OnlyGas30kW5 £1,522.14
VaillantEcoFIt sustain 825CombiGas25kW5 £1,120.04
ViessmannB1HC Vitodens 100-W 26SystemGas26kW5 £1,063.44
PottertonPromax SL Heat 18Heat-OnlyGas18kW2 £1,111.20
Worcester-BoschGreenstar 40CDi ClassicHeat-OnlyGas40kW5 £1,556.78
AlphaInTec 30CCombiGas30kw5 £1,124.54
IdealVogue S18 Gen2SystemGas18kW8 £1,067.56
AristonE-evo 30CombiGas30kW5 £1,137.94
IdealMexico HE 18Heat-OnlyGas18kW2 £1,155.10
IdealLogic Plus Heat 30Heat-OnlyGas30kW5 £1,161.86
Worcester-BoschGreenstar 42CDi ClassicCombiGas42kW5 £1,663.77
VaillantEcoFIT pure 835CombiGas35kW7 £1,140.00
BaxiEcoBlue System 28SystemGas28kW5 £1,081.19
IdealLogic Plus 24SystemGas24kW7 £1,082.53
PottertonPromax SL Heat 24Heat-OnlyGas24kW2 £1,171.20
Worcester-BoschGreenstar 30iSystemGas30kW5 £1,089.41
ViessmannWB1B Vitodens 100-W 35Heat-OnlyGas35kW5 £1,424.94
ViessmannB1HC Vitodens 100-W 30SystemGas30kW5 £1,094.19
ViessmannB1KC Vitodens 100-W 35CombiGas35kW5 £1,159.06
BaxiEcoBlue Advance 33CombiGas33kW10 £1,170.66
Worcester-BoschGreenstar 27iSystemGas27kW5 £1,097.04
PottertonPromax 24CombiGas24kW1 £1,182.00
VaillantHome 35CombiGas35kW2 £1,182.00
BaxiPlatinum 40CombiGas40kW10 £1,214.79
VaillantecoTEC plus 832CombiGas32kW8 £1,222.41
IdealLogic Code ES 26CombiGas26kW2 £1,224.26
IdealMexico HE 24Heat-OnlyGas24kW2 £1,597.20
Worcester-BoschGreenstar 24iSystemGas24kW5 £1,110.02
BaxiEcoBlue Advance 40CombiGas40kW10 £1,233.71
IdealVogue Gen2 C32CombiGas32kW8 £1,245.95
Worcester-BoschGreenstar Highflow 440CDiCombiGas29kW5 £2,000.60
VaillantecoFIT pure 625SystemGas25kW7 £1,111.43
IdealLogic Plus 30SystemGas30kW7 £1,122.98
Worcester-BoschGreenstar 30CDi ClassicSystemGas30kW5 £1,125.26
AlphaInTec 34CCombiGas34kw7 £1,246.53
Worcester-BoschGreenstar 42CDi FsHeat-OnlyGas42kW5 £2,213.79
VaillantEcoFIt sustain 835CombiGas35kW5 £1,294.72
VaillantecoTec plus 624SystemGas24kW8 £1,130.34
PottertonPromax Store 90LHeat-OnlyGas24kW2 £1,862.63
BaxiEcoBlue System 32SystemGas32kW5 £1,131.03
IdealVogue 40CombiGas26kW7 £1,347.40
IdealMexico HE 30Heat-OnlyGas30kW2 £1,962.82
PottertonPromax Store 150LHeat-OnlyGas24kW2 £2,064.34
ViessmannB1HC Vitodens 100-W 35SystemGas35kW5 £1,146.94
IdealLogic Code ES 33CombiGas33kW2 £1,361.97
VaillantecoTEC plus 835 35CombiGas35kW8 £1,372.25
IdealVogue 26SystemGas26kW8 £1,151.32
PottertonPromax System 15SystemGas15kW2 £1,161.60
IdealVogue GEN2 C40CombiGas40kW8 £1,387.48
IdealEvoMax 30Heat-OnlyGas30kW2 £2,279.61
PottertonPromax System 18SystemGas18kW2 £1,185.60
PottertonPromax Ultra 28CombiGas28kW2 £1,454.40
PottertonPromax 33CombiGas33kW1 £1,480.80
VaillantecoTEC plus 438 38Heat-OnlyGas38kW8 £2,370.00
VaillantecoFIT pure 630SystemGas30kW7 £1,206.08
IdealLogic Code ES 38CombiGas38kW2 £1,481.76
IdealVogue S26 Gen2SystemGas26kW8 £1,210.67
IdealEvoMax 40Heat-OnlyGas40kW2 £2,532.02
VaillantEcoTEC plus 938CombiGas38kW8 £1,557.08
Glow-WormEnergy 35 Store 35CombiGas35kW5 £1,579.18
ViessmannB1LD Vitodens 111-W 26CombiGas26kW5 £1,593.14
IdealMexico HE 36Heat-OnlyGas36kW2 £2,707.48
PottertonPromax Ultra 33CombiGas33kW2 £1,617.60
VaillantecoTec plus 630SystemGas30kW8 £1,215.63
VaillantEcoTEC Exclusive Green IQ 835CombiGas35kW2 £1,651.55
IdealEvoMax 60Heat-OnlyGas60kW2 £2,911.76
PottertonPromax Ultra 40CombiGas40kW2 £1,708.80
ViessmannB1LD Vitodens 111-W 35CombiGas35kW5 £1,712.64
ViessmannB2HB Vitodens 200-W 19SystemGas19kW3 £1,217.52
FerroliEnergy Top W125Heat-OnlyGas116kW1 £3,178.84
Worcester-BoschGreenstar 35CDi ClassicSystemGas35kW5 £1,221.45
VaillantEcoTEC Exclusive Green IQ 843CombiGas43kW2 £1,979.39
IdealVogue 32SystemGas32kW8 £1,229.90
AlphaInTec Gs 30CombiGas30kw5 £2,106.02
VaillantecoTEC plus 838CombiGas38kW8 £2,179.20
IdealVogue S32 Gen2SystemGas32kW8 £1,296.65
VaillantecoTec plus 637SystemGas37kW8 £1,341.96
PottertonPromax System 32SystemGas32kW2 £1,363.20
Worcester-BoschGreenstar Highflow 550CDiCombiGas30kW5 £2,436.93
ViessmannB2HB Vitodens 200-W 26SystemGas26kW3 £1,424.49
VaillantecoTEC exclusive Green iQ 627SystemGas27kW2 £1,453.62
Worcester-BoschGB162 50SystemGas50kW2 £1,926.14
IdealEvoMax 80Heat-OnlyGas80kW2 £3,230.69
AlphaProTec Plus 50SystemGas54kw3 £2,136.00
VaillantEcoTEC 46SystemGas46kW2 £2,177.69
AlphaInTec Gs 40CombiGas40kw5 £2,334.47
Worcester-BoschGB162 65SystemGas65kW2 £2,377.78
VaillantEcoTEC 65SystemGas65kW2 £2,799.16
AlphaProTec Plus 70SystemGas74kw3 £3,342.56
ViessmannB2TB Vitodens 222-F 19 StorageCombiGas19kW5 £2,621.52
AlphaProTec Plus 90SystemGas98kw3 £3,959.17
AlphaProTec Plus 115SystemGas121kw3 £4,437.16
ViessmannB2TB Vitodens 222-F 26 StorageCombiGas26kW5 £2,700.72
IdealEvoMax 100Heat-OnlyGas100kW2 £3,925.94
ViessmannB2TB Vitodens 222-F 35 StorageCombiGas35kW5 £2,762.10
IdealEvoMax 120Heat-OnlyGas120kW2 £4,178.34
IdealEvoMax 150Heat-OnlyGas150kW2 £4,685.43

Gas boiler installation costs

Gas boiler installation prices widely vary depending on a variety of factors relating to your home, and your heat and hot water demands. The cost of a boiler will likely depend on the size of the house it needs to supply. The bigger the house, the more power your boiler will need, and those can be more expensive than a boiler that supplies a smaller house. The cost of labour will also vary depending on the intensity of the work involved to remove the old boiler and install the new one.

Additional cost to your new boiler installation may occur if:

• Extra parts are required

• Extra pipework or brickwork is needed

• The position of the boiler is moved

• Scaffolding is required

• There is asbestos or artex at the property

• The boiler type is changed e.g. combi to conventional swap*

* the above list of factors is not exhaustive and other factors not considered above may effect the price of the overall supply and install costs.

What gas boiler do I need in my home?

Suited for most homes which have a mains gas supply or access to LPG, gas boilers are available in 3 types including combi, heat-only and system. The size of your home and your demands for heat and hot water will depend on the type of boiler you need. Generally, we recommend small to medium sized homes are best suited to combi boilers; whereas large homes with a high demand for heat and hot water are usually well suited to a system or heat-only boiler. However, all boiler types have models available which vary in size and output to suit a range of properties.

One of the most important considerations when choosing a boiler for your home is the kW output, as this determines the boilers ability to cope with your hot water demand. The number of bathrooms and radiators are key influences on what kW output you need.

Here’s a guide to the kW output you may require based on the size of your property:

24-27kW28-34kW35-42kW
1-2 bedroom3-4 bedroom4+ bedrooms
10 radiators15 radiators20 radiators
1 bathroom1-2 bathrooms2+ bathrooms

(This information has been supplied by Help-Link UK limited and has been produced for information purposes only and should not be used or relied upon as a substitute for professional advice by a suitably qualified engineer.)

* Prices correct as of December 2017 from our list of suppliers