I prepare specifications and get quotes ( well tenders) based on my specification, my requirements, and not on what the contractors want or want to caveat.Have you ever had a quote from Bullivants?
I have. And there are lots of caveats.
By the way, I have NEVER seen a ground conditions report accompanying a domestic extension drawings package, at the quoting stage.
EVER. It just does not happen.
They are the contractor. The survey would normally be done by those specifying, then provided to the contractor as part of the quoting process. If the piling firm are designing, then they survey to.I agree, I've never known a piling company do a ground investigation
as I said DOMESTIC EXTENSIONS don't come with ground surveys. You are lucky if they've even identified the existing.I prepare specifications and get quotes ( well tenders) based on my specification, my requirements, and not on what the contractors want or want to caveat.
I would expect them to price according to the specification and to make such allowances in their bid as they see fit. No caveats, no one-sided terms and conditions, no get out clauses, just a single joint agreement.
BTW, no one can put unfair caveats into a contract. Terms which benefit only one party are unfair and unenforceable. I know firms do it, and state that by you signing you are in agreement to their terms, but its actually BS.
As to ground surveys. That should be part of any piled foundation survey, so the conditions are known beforehand. Services, pockets, sand seams etc are all relevant to the design.
IME builders are given a building regs drawing to quote against - and those almost never show any detail on ground conditions.Have you ever had a quote from Bullivants?
I have. And there are lots of caveats.
By the way, I have NEVER seen a ground conditions report accompanying a domestic extension drawings package, at the quoting stage.
EVER. It just does not happen.
Then how does a contractor know the ground needs piling?IME builders are given a building regs drawing to quote against - and those almost never show any detail on ground conditions.
How does this contractor who is quoting for a domestic extension, or the client, know that piles are required?as I said DOMESTIC EXTENSIONS don't come with ground surveys. You are lucky if they've even identified the existing.
Typo, 6.5m meant not 8.5mHe quoted for 8 piles at 6.5m deep and he gave you 8 piles at 8.5m deep? End of storey, he may had got his costings wrong but thats his risk.
Domestic clients are not expected to ensure any adherence to CDM any more than they would be expected to take on the role as Planning Supervisor as it would be completely outside their knowledge and understanding, in such a situation it is the contractor who will be required to take the lead role.They are the contractor. The survey would normally be done by those specifying, then provided to the contractor as part of the quoting process. If the piling firm are designing, then they survey to.
However, CDM requires a survey, albeit for safety purposes, but it's essentially the same survey as for design. Contractors should follow CDM, and clients should ensure they do.
Because that's what the neighbour did...or that's what the site agent told the architect....or the bloke over the road said so....or the archirtect prefers to spec piles over raft.How does this contractor who is quoting for a domestic extension, or the client, know that piles are required?
Correct.IME builders are given a building regs drawing to quote against - and those almost never show any detail on ground conditions.
CDM applies to domestic work. The client is required to ensure that the contractor (or designer if he agrees) carries out their responsibilities under CDMDomestic clients are not expected to ensure any adherence to CDM any more than they would be expected to take on the role as Planning Supervisor as it would be completely outside their knowledge and understanding, in such a situation it is the contractor who will be required to take the lead role.
Never had this for an extension. Most of the time they quote off of drawings and google earth. For houses and above I have had ground testing done prior to quotation, but even then it depends on the area and the reason for the piling.They are the contractor. The survey would normally be done by those specifying, then provided to the contractor as part of the quoting process. If the piling firm are designing, then they survey to.
However, CDM requires a survey, albeit for safety purposes, but it's essentially the same survey as for design. Contractors should follow CDM, and clients should ensure they do.
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