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estimate

Estimation (or estimating) is the process of finding an estimate, or approximation, which is a value that is usable for some purpose even if input data may be incomplete, uncertain, or unstable. The value is nonetheless usable because it is derived from the best information available. Typically, estimation involves "using the value of a statistic derived from a sample to estimate the value of a corresponding population parameter". The sample provides information that can be projected, through various formal or informal processes, to determine a range most likely to describe the missing information. An estimate that turns out to be incorrect will be an overestimate if the estimate exceeded the actual result, and an underestimate if the estimate fell short of the actual result.

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  1. E

    Taking the mick?

    Hello All, Apologies from a non-plumber for picking your brains, but if you want a question answered, ask the right people! I'm in the early stages of a renovation (four walls stone walls to renovate but nothing else) and an extension - effectively a new build. I've had a couple of prices in...
  2. G

    price estimate

    Looked at a fire install today and dithering on roughly how much to charge labour, The house has had a new combi boiler installed recently but the back boiler is still in place behind fire , so works include removing old backboiler along with existing fire and fire surround.Customer has a new...
  3. E

    estimate too expensive

    comments please. Went to look at fitting thermostatic shower above bath, currently no shower. Customer has unvented system and had already bought unbranded £30 shower so wanted a fit only quote. Being inexperienced I reckon job would take me 3 hours (possibly more but dont think i can base my...
  4. T

    Labour Estimate

    More grief. I need help from you trusted experts please. What would you estimate the labour for the following : 1) attach a bath to a waste 2) attach a thermostat and shower head to a tiled wall 3) hang a wall hung unit 4) reconnect a tap 5) fit a concealed cistern taps to a toilet 6) attach...
  5. S

    stupid customers

    got a phune call from a customer whose first questiom was do i give free estimates yes i said only ive got water running down my wall you dont need an estimate you need a call out oh no she ses i just want you to tell me where its coming from and how much it will cost i explained that i do...
  6. H

    Estimate cost for a new Central heating system

    Hi I need some assistance on a ball-park figure for a new central heating system. I have a 3-bed house and in all there are 10 radiators in the house. The system I have right now is quite old gravity based central heating and water supply. Could anyone please help me what would be about the...
    • hit0062
    • Thread
    • assistance boiler central central heating system cheap condensing cylinder eco estimate gravity head heating system installation loft price radiators sealed supply switch system thermostatic timer water
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
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