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Deep Well SamuiDeep well drilling & water supply on Koh Samui

Service · Koh Samui

Well Inspection on Koh Samui

A well is the least visible and most expensive-to-fix part of a property. We inspect wells the way a surveyor inspects a building: measured yield, water levels, casing condition and an equipment audit — delivered as a written report you can act on or negotiate with.

Useful to send: what the well is doing and what has changed, plus any records you have. Buying a property? Tell us the date you need the report by.

Who this service is for

  • Buyers doing due diligence on a property that comes with a well
  • Owners of older wells with no documentation
  • Managers taking over a villa with an unknown water system
  • Anyone planning upgrades who needs to know what's actually down there

How it fits together

From measurements to a decision

An inspection is only useful if it ends in a decision you can act on.

  1. Measure today's behaviour

    Water levels before, during and after pumping, sustained flow, and how the pump draws current.

  2. Compare with records and season

    Against whatever drilling or service records exist, and against the time of year.

  3. Find the weak link

    Well, pump, controls, wellhead or storage: which one limits the supply, or puts the water at risk.

  4. Report with priorities

    Measured findings, photos and what to do first, in plain language.

  5. Your decision

    Keep and monitor, repair, rehabilitate, or price it into a purchase.

Technician checking the wellhead of an existing well at a villa on Koh Samui
Illustrative image, not a photo of a specific client project.

Service · Koh Samui

Common symptoms & problems

Buying blind

A property with an undocumented well is a property with an unknown liability. An inspection prices it.

Yield that declined quietly

Wells lose capacity gradually — clogged screens, dropping water tables. Measurement catches what habit hides.

Contamination paths

Failed surface seals let runoff into the aquifer. Invisible from above, findable in an inspection.

A pump at end-of-life

Pumps rarely announce retirement. Electrical and performance checks estimate remaining life before it fails during high season.

Service · Koh Samui

What we check on an existing well

Flow-rate & yield

What the well delivers today — measured, not recalled.

Static & drawdown levels

How the water level behaves under pumping.

Casing & wellhead

Sealing, corrosion and damage checks.

Installed equipment

Pump, controls, tank and wiring — condition and sizing.

Documentation

Whatever drilling or service records exist, reviewed.

Optional water test

Laboratory analysis when the use case calls for it.

Service · Koh Samui

What the service includes

Flow-rate & yield test

What the well actually delivers today — measured, not recalled from memory.

Static & drawdown water levels

How the water level behaves under pumping — the health indicator most owners have never seen.

Casing & wellhead condition

Sealing, corrosion and damage checks on the parts that protect the aquifer.

Equipment audit

Pump, controls, tank and wiring reviewed for condition, sizing and safety.

Optional laboratory water test

Water quality analysis when the use case calls for it.

Written report

Findings, photos and prioritised recommendations — in plain language.

How it works

  1. Document review

    Whatever records exist — drilling logs, invoices, previous repairs. Partial is fine; none is common.

  2. On-site testing

    Yield, water levels and wellhead condition measured at the property.

  3. Equipment audit

    The installed pump, controls and storage assessed against the well's measurements.

  4. Report & walkthrough

    You get the written report and a conversation about what it means — and what it doesn't.

Service · Koh Samui

Important technical considerations

  • Measurements are a snapshot; yield can vary with the season and over the years.
  • Some casing and downhole issues can't be seen directly and are inferred from behaviour.
  • An inspection reports condition and risk — it is not a guarantee of future performance.
  • Equipment age and installation quality weigh as heavily as the well itself.
  • Every well is different, especially older or undocumented ones.

Service · Koh Samui

What affects cost & timeline

  • Well depth and site access.
  • Whether a laboratory water test is added.
  • The scope and turnaround of the written report.

Site conditions vary from plot to plot, so we quote a fixed, itemised price after the site assessment — never a fixed figure beforehand.

Frequently asked questions

How long does an inspection take?

Usually a few hours on site, depending on well depth and access; the written report follows within days. We confirm scheduling when you book.

Can you inspect a well you didn't drill?

Yes — most wells we inspect were built by others, often with no surviving records. The inspection is designed exactly for that situation.

Does the inspection include water quality?

Yield and construction are standard; laboratory water analysis is an optional add-on we recommend when the water is used for drinking or the property will host guests.

What happens if you find problems?

The report lists findings with prioritised recommendations and realistic options. What you do with it — repair, renegotiate a purchase, or monitor — is your call, with no obligation to us.

Can an inspection tell me how the well will behave in the dry season?

It measures how the well behaves on the day and compares that with the season and any older records, which is usually enough to say whether the dry months will be tight. A well tested at the end of the rains will look better than it does in April; the report says so and, where it matters, we recommend a second measurement in the dry season.

What should I check before buying a villa with a well?

Ask for the drilling and service records, then have the well measured rather than described: water levels, sustained flow, the pump's condition and current, the wellhead and, if the water is drunk, a laboratory test. Findings that need money spent are easier to agree on before signing than after.

Tell us what the well is doing

What has changed, how old the system is if you know, and any records you have. Buying a property? Tell us your deadline and we plan the inspection and the report around it.

Describe the well