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DIY to reduce cost of an extension

Discussion in 'Your Projects' started by Beenshute, 11 Jul 2019.

  1. Beenshute

    Beenshute

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    I have planning approved for a two storey extension 9.6m x 6.5m but having received quotes from builders has resulted in a heart attack, with prices much higher than expected. I am a DIY novice but willing to take on anything that I could be capable of doing. Does anyone have any ideas of where I could look to cut costs? Any advice appreciated!

    upload_2019-7-11_21-4-6.png upload_2019-7-11_21-4-6.png
     
  2. paulrockliffe

    paulrockliffe

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    Everywhere. Those numbers are insane.

    You could start by not having the roof gilded, I presume that's how you've ended up at over £60k for the roof? And nearly £20k insulation. WTF.
     
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  3. Harry Bloomfield

    Harry Bloomfield

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    Have you got the decimal points in the wrong places? That is ridiculous.
     
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  4. Notch7

    Notch7

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    what sort of builder? -is that a big firm with offices, contracts managers etc?

    a quick add up makes it around £275k.....

    A high spec job could be that, but a 2 storey extension could also be £100k to £150k

    the figures dont make sense -why is there £47k for PC sums -is that for kitchen and bathrooms or something?

    To cut costs:
    Get a trusted local 1 man band builder with subbies that does 1 job at a time.

    Simplify the job -get the builder to do the shell, electrics plastering you sort out tiling, fittings, maybe windows and doors
     
  5. jonbey

    jonbey

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    Get some more quotes.

    I saved with cheap kitchen (bought units, builder's chippy fitted them - cost was about £2k)
    Did all the decorating myself.

    But that quote is silly.
     
  6. Brigadier

    Brigadier

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    I agree that the figures are stupid, even to my DIY eye, but....

    ...when pricing extensions / loft convertions etc, do builders look at what it would cost you to move into the finished article, then come in just enough below to make the work just about worth it, compared to moving house?
    Could that be what's going on here?
     
  7. pilsbury

    pilsbury

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    Sounds like that builder doesn’t want the job.
     
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  8. garyo

    garyo

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    I'd be fascinated to see how a realistic quote breaks down, having never seen one.
     
  9. geraldthehamster

    geraldthehamster

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    How can a roof covering cost 55k?
     
  10. jonbey

    jonbey

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    Maybe those Tesla solar panel tiles?
    Helipad?
     
  11. jonbey

    jonbey

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    That builder is missing a trick actually. He has External Cavity Walls. £27,300.

    What he should do is quote:
    Outer Wall £12,000
    Inner Wall £12,000
    Cavity £9,000

    And he'll get another £6k
     
  12. Londoner2

    Londoner2

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    You need to get 3 more quotes.
     
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