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Thread: Replacement gas boiler time - cost?

  1. #1
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    Replacement gas boiler time - cost?

    It looks like my 25 year old gas boiler is on its way out. The British Gas engineer is coming on monday to hopefully sort it out this time (pilot light refuses to stay on). In the event that parts aren't available I'm mentally preparing myself to stump up for a new one.

    Anybody replaced a bolier recently and how much did it cost?

    If I went with British Gas to supply and install a new one, would they be totally uncompetitive compared to a local business? At least with BG there should be some comeback if things go wrong.

    Trouble is, my record in finding competent tradesmen is pretty abysmal - recent examples being a roofer who failed to fix a leak and then did a runner; and a local glazier who bodged up a replacement pane so badly that the complete window had to be replaced by someone else. Both these tradesmen were recommended by friends and both had good reviews on websites, so I am now very reluctant to believe sites like these. Many years ago in a previous house (which we had only just moved into), I had a gas engineer (not british gas) condemn a boiler, however in hindsight I suspect there wasn't anything wrong with it (they also made a real mess of installing the new one).

    I don't mind paying a premium for peace of mind, but I don't want to feel like I've been mugged !

  2. #2
    Master village's Avatar
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    We had one done earlier this year by British Gas. We have a 5/6 bed house...had a powerflush,magnetic filter thing and some extra pipe work done. It was all carried out in a day very efficiently and cleanly. Boiler is a Valiant Ecofit Pure. Oh,and also a hive controller/thermostat and box.
    All in £3.2k give or take a couple of quid plus BG give you the homecare cover for a year so that saved me about £350 which makes the actual figure just under £3k

  3. #3
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    Iíd personally always try and use local people - probably a lot cheaper and if you get the right one far more reliable. Just ask a few people than you know who they would recommend. Even ask on local Facebook pages as that gets a good response. I noticed on a local one near to me the other day (Westward ho page) so,some asked for a reliable window fitter. There were about 20 recommendations and as it happens the guy I always use probably had about 10 people putting his name forward. Another couple of people had 3 or 4 each.

    Also a point to consider, my boiler (oil) was 25 years old and whilst still chugging along was coughing and spluttering and I made the decision to get a new one. As well as working far better, my oil bills dropped considerably as it was far more efficient so keeping it could prove to be a false economy long term.

  4. #4
    Quote Originally Posted by Devonian View Post
    Iíd personally always try and use local people - probably a lot cheaper and if you get the right one far more reliable. Just ask a few people than you know who they would recommend. Even ask on local Facebook pages as that gets a good response. I noticed on a local one near to me the other day (Westward ho page) so,some asked for a reliable window fitter. There were about 20 recommendations and as it happens the guy I always use probably had about 10 people putting his name forward. Another couple of people had 3 or 4 each.
    To be fair, the OP has had bad experiences with friend's recommendations!

  5. #5
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    Quote Originally Posted by JerryTDM View Post
    It looks like my 25 year old gas boiler is on its way out. The British Gas engineer is coming on monday to hopefully sort it out this time (pilot light refuses to stay on). In the event that parts aren't available I'm mentally preparing myself to stump up for a new one.

    Anybody replaced a bolier recently and how much did it cost?

    If I went with British Gas to supply and install a new one, would they be totally uncompetitive compared to a local business? At least with BG there should be some comeback if things go wrong.

    Trouble is, my record in finding competent tradesmen is pretty abysmal - recent examples being a roofer who failed to fix a leak and then did a runner; and a local glazier who bodged up a replacement pane so badly that the complete window had to be replaced by someone else. Both these tradesmen were recommended by friends and both had good reviews on websites, so I am now very reluctant to believe sites like these. Many years ago in a previous house (which we had only just moved into), I had a gas engineer (not british gas) condemn a boiler, however in hindsight I suspect there wasn't anything wrong with it (they also made a real mess of installing the new one).

    I don't mind paying a premium for peace of mind, but I don't want to feel like I've been mugged !
    Send me a pm and I'll see if there's any discounts I can get hold of if your getting a quote from British gas.

  6. #6
    Friend of mine had a combo put in last week

    Four bed detached house £1500 fitted all in


    Thatís all I know
    Thatís what my mate at British Gas said was about right too when he fixed mine

  7. #7
    I recently replaced my combi boiler and was surprised that BG quote was actually very competitive. However, they spec'd a lesser model of boiler that was more suitable for a larger property. I don't know who does their installation but I would imagine it's sub-contracted to a local installer. The good thing about BG quote was that if additional work was required, it would be done with no additional cost. In the end I went with a local installer and whilst I'm happy with their work, there was additional work mentioned during the installation that wasn't mentioned in their quote (it was in other quotes) which was optional (earth between meter and boiler).

    I arranged the quotes via the Worcester Bosch website and most of the local installers got back to me. I too haven't had much luck with local tradesman. I believe these days they can pick and choose their jobs and some don't even bother quoting. Good luck!!

    If the boiler that BG quote you for is suitable, I would seriously consider them providing their quote is competitive.

  8. #8
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    You will usually pay a substantial premium if you use British Gas but it cannot hurt to get them to quote as a starting point. Like you I have had difficulty finding decent local tradesmen but I do echo the local Facebook suggestion. See if there is group for your locality & if there is join it & ask on there. Ask for personal recommendations & don't just go for traders putting themselves forward.

    If you are having a new boiler you will almost certainly need a powerflush to comply with the manufacturer's guarantee terms. If it's done properly this alone could take most of a day, depending on how many radiators you have.

    I now avoid Checkatrade & the like as I have had nothing but bad experiences with trades that advertise on there.

  9. #9
    Administrator swanbourne's Avatar
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    We had a new Worcester Bosch fitted in May this year. BG were offering an £800 discount at the time so it ended up costing £2400 but I also save almost £300 on not having to pay Homecare for the first year. We had to call them back twice in the first month because the motorised valve stuck and they replaced it at no cost.

    I wanted to use a local guy but he couldn't fit us in for 3 weeks and I didn't fancy going 3 weeks without hot water.

    Eddie
    Whole chunks of my life come under the heading "it seemed like a good idea at the time".

  10. #10
    Why would you need homecare in the first year if the boiler is under warranty and doesn't require to be serviced?

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  11. #11
    Craftsman Arcam's Avatar
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    Quote Originally Posted by doubledee View Post
    Why would you need homecare in the first year if the boiler is under warranty and doesn't require to be serviced?

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    Guess it covers the radiators and pipe work which may not have been changed.

    Sent from my SM-N960F using Tapatalk

  12. #12
    Master
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    My old boiler is 22 years old and 9 years ago my pilot light kept going out.

    All it was was a thermocouple and £50 and 9 years later still going strong.

  13. #13
    Craftsman Incredible Sulk's Avatar
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    We had a Worcester Bosch 30cdi installed in December of last year, together with a WB unvented cylinder. The installation has a ten year guarantee, provided it's serviced annually. That's no biggie, as the unvented cylinder needs to be looked at annually anyway. Total cost was £5.5k, but that included ripping out the two boilers we had before and changing the location of the cylinder and a load of other pipework changes, new TRV's and probably a load of other stuff I've forgotten. In case that seems high we had three plumbers on site all day for 4 days. Well, two plus an apprentice, who spent all his time in the loft taking the cold water and CH expansion tanks out which involved them being chopped up into small pieces. The big advantage of having the unvented cylinder is that all the plumbing, hot and cold now runs at 3 bar instead of mains cold pressure (4 bar) and a 10 foot head on the hot. Showers are now brilliant and flow a huge volume of water. They were pretty crap before.

    I got the names of all the local WB accredited installers off their website, and had 3 of them quote. I was very happy with the firm we eventually decided on.

  14. #14
    Personally, after several tries over the years, we will never use British Gas ever again.
    The last BG engineer we had asked me how to wire in the thermostat so after that the contract was not renewed.

  15. #15
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    Thanks for all the replies so far.

    Hopefully, as mjc1216 has mentioned, the problem might be trivial. If it's going to die I would much rather it did it in summer, rather than approaching winter :)

    I have BG homecare (or whatever it's called) so would save a years on that, which would be useful. The BG engineers who have done the yearly service have been pretty good and there has been no hard sell in the past to get me to upgrade the boiler, apart from the warning that some parts might be hard to get hold of in the future.

    I am a member of a local Facebook group so will ask for recommendations on there (maybe on who not to use !).

    Thanks all.

  16. #16
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    Quote Originally Posted by mjc1216 View Post
    My old boiler is 22 years old and 9 years ago my pilot light kept going out.

    All it was was a thermocouple and £50 and 9 years later still going strong.
    Ditto & we were told 9 years ago by BG our boiler was on the way out !
    Yes I am aware it is not a combi or probably as efficient as the new boilers , however we have had this boiler for 25 years , our independent boiler engineer says as long as the parts available we would be foolish to change it .
    Enough said .
    As a previous TZer had suggested sounds like a possible thermos coupling issue ... explore this first before giving a BG fitter a lovely Xmas bonus and for you ....a boiler with a 10 year life span . CAVEAT ... my experience only , not professionally qualified for expert opinion .


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  17. #17
    Craftsman bomberman's Avatar
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    BG quoted for a 3 bed house just under £8k for complete new system including a pressurised cylinder.

    The current system is working but BG have stated when they serviced it that they canít support the boiler anymore!

    Get a few quotes.

    B

  18. #18
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    Quote Originally Posted by Kingstepper View Post
    To be fair, the OP has had bad experiences with friend's recommendations!
    Yes I realise that but big companies can give just as bad experiences as small ones. Hence why I,said Facebook groups, if you get multiple recommendations thatís about as good as you can get.

  19. #19
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    Quote Originally Posted by village View Post
    We had one done earlier this year by British Gas. We have a 5/6 bed house...had a powerflush,magnetic filter thing and some extra pipe work done. It was all carried out in a day very efficiently and cleanly. Boiler is a Valiant Ecofit Pure. Oh,and also a hive controller/thermostat and box.
    All in £3.2k give or take a couple of quid plus BG give you the homecare cover for a year so that saved me about £350 which makes the actual figure just under £3k
    I had BG round to give me a quote earlier this year. They quoted me £3,600 to fit a 15kw Vaillant Ecotec pure and that quote included their standard fee of £600 for either scaffolding or a tower to slip a finishing trim on the boiler flue that was coming out of the existing hole in the wall. I had fitted my own magnetic filter so I got a local firm to quote, and they quoted £2400 to fit an 18kw Vaillant Ecotec Plus (next grade of boiler up from the pure). In the end I got a Vaillant approved installer to supply and fit the 18Kw Ecotec plus for £1,560 all in. Because he was an approved installer, I got a 7 year guarantee on it (provided it is serviced annually by a Gas Safe registered engineer).

    Shop around and donít discount small, independant fitters but make sure they are on the Gas Safe Register and they are able to notify your local building control department to get the all important certificate of installation issued.

  20. #20
    Master Thewatchbloke's Avatar
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    My 25 year old boiler had the same problem on Thursday. Yesterday the engineer came out, changed the thermocouple and itís as good as gold once again.

  21. #21
    Quote Originally Posted by Arcam View Post
    Guess it covers the radiators and pipe work which may not have been changed.

    Sent from my SM-N960F using Tapatalk
    I know people here love 'peace of mind' but what's the chance of pipes or a radiator going wrong?

  22. #22
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    a boiler with a 10 year life span
    My next door neighbour who has the same aged boiler as me also said this last year. He reckoned, although a new boiler was more efficient it probably wouldn't last as long (he also said 10 years) and so we were better off running our existing ones as long as possible.

    Talking about dodgy tradesmen, here is my roofer. I only found out this information about him when he went radio silent and never turned up last month to rectify his less than perfect repair job. Life is too short however to start legal proceedings against him for the sake of a few hundred quid.

    Funnily enough, this information wasn't on his reviews !

    https://www.dailyecho.co.uk/news/105...o_blow_up_bank
    Last edited by JerryTDM; 10th November 2018 at 21:16.

  23. #23
    Quote Originally Posted by Kingstepper View Post
    I know people here love 'peace of mind' but what's the chance of pipes or a radiator going wrong?
    If my house is anything to go by quite high. Have had two leaks in 2 years . Annoying cowboy owners before me who fancied themselves as developers , redeveloped the property poorly. Changed the boiler kept the ancient pipes and radiators too.

  24. #24
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    Quote Originally Posted by Incredible Sulk View Post
    We had a Worcester Bosch 30cdi installed in December of last year,
    I had that installed a couple of years ago, an excellent boiler. Our bills dropped considerably over the Potterton we had.

  25. #25
    Master Brian's Avatar
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    Quote Originally Posted by Thewatchbloke View Post
    My 25 year old boiler had the same problem on Thursday. Yesterday the engineer came out, changed the thermocouple and itís as good as gold once again.

    Old boilers - throw a new thermocouple in every two or three years; they'll go forever.


    B

  26. #26
    My boiler is about 20 yrs old.
    Remember my uncle fitting it. Been excellent but over the last few yrs Iíve had to have bit done to it cost me a couple hundred quid. Maybe time to get a newer more efficient one. Vokera have beeen recommended to me
    Most have a long warranty nowadays I think 5 or 7 years

  27. #27
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    Quote Originally Posted by lenlec View Post
    My boiler is about 20 yrs old.
    Remember my uncle fitting it. Been excellent but over the last few yrs Iíve had to have bit done to it cost me a couple hundred quid. Maybe time to get a newer more efficient one. Vokera have beeen recommended to me
    Most have a long warranty nowadays I think 5 or 7 years
    please don't install a vokera.

  28. #28

    Replacement gas boiler time - cost?

    Quote Originally Posted by mjc1216 View Post
    My old boiler is 22 years old and 9 years ago my pilot light kept going out.

    All it was was a thermocouple and £50 and 9 years later still going strong.
    If it lights but wonít stay on when you turn the knob round then it is likely the thermocouple which is a cheap (universal) part and can be fitted in a few minutes.


    Sent from my iPhone using TZ-UK mobile app

  29. #29
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    Yes ! I have heat :)

    Now fixed by British Gas Engineer for free under my care plan.

    As others had guessed, it was the thermo-couple thingamejig.

    His parting words were 'Keep this nice simple boiler going as long as possible'.

    Hopefully get a good few more years out of it yet.

  30. #30
    Master
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    The thermocouple would normally get changed as part of the annual service.

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