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Question DetailsAsked on 5/5/2017

How much does it typically cost to upgrade a drilled well in a pit to something more modern and safe?

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1 Answer


Not sure why you want to change unless something is wrong with the existing well - surface waters entering (which a surface liner or some grading can commonly solve). In my experience pit-type wells are commonly easier to make major repairs on than pitless ones, and generally are a lot less prone to freezing (if properly insulated) or to expensive pitless adapter connection/piping failures. Also generally easier to pull the pump when needed for repair / replacement, foot valve repair, well cleaning or screen replacement, etc.

I would expect you are looking at $1000 at least and possibly quite a bit more to change to a pitless well - and depending on the depth of the well, if not over about 50-70' deep it might well be cheaper to drill a new one nearby than to modify the existing one, depending on its construction.

I would first have it assessed by several Well and Pump contractors or by a Civil Engineering (no Angies List category for that) firm which does a lot of proeprty development work involving wells for what is wrong with it, and cost to go to a pitless scheme.

If your problem is surface wter inflow, the cheapest solution might well be to install a surface casing around it, installed to typically 10-15' or so below ground level and grouted in, to stop inflow. In larger pits, thjis can be done inside the pit without any "drilling" as such - just installing surface casing and grouting it to the well casing, then typically pouring concrete around it in the interval between the pit and the casing - leaving the pit shell in place in many cases.

Answered 3 years ago by LCD

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