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Damp

Damp Surveys in Banstead

An independent, surveyor-led inspection that identifies the true cause of damp before any work is quoted.

A damp survey is the single most useful thing you can do when a wall, ceiling or floor is showing moisture. Damp is a symptom, not a diagnosis, and the same tide mark can be caused by a bridged cavity, a leaking downpipe, a failed damp proof course or simply cold surfaces attracting condensation. Treating the wrong cause is the most common reason homeowners in Banstead end up paying twice.

Our survey work is diagnostic rather than sales-led. We record calibrated moisture readings across affected and unaffected areas, measure air temperature and relative humidity, use thermal imaging to trace cold bridges and hidden water paths, and where necessary take deep-wall samples for salt and hygroscopic moisture analysis. You receive a written report that explains what we found, what caused it, and precisely which repairs are needed — including the option that no remedial damp proofing is required at all.

Common signs

  • Tide marks or a horizontal staining line above skirting level
  • Blown, bubbling or salty plaster that crumbles when pressed
  • Peeling wallpaper, flaking paint or dark patches on external walls
  • A persistent musty smell in a room, cupboard or cellar
  • Cold, damp-feeling walls and recurring mould in the same corner

Likely causes

  • Failed, bridged or absent damp proof course
  • Raised external ground, paths or flower beds above internal floor level
  • Defective rainwater goods, roof coverings or pointing
  • Plumbing leaks beneath floors and behind boxing
  • Cold surfaces combined with high indoor humidity

Ask about damp surveys

Tell us what you are seeing and we will call you back with honest advice.

Prefer to talk? Call 020 8239 3335 or 07730 982359.

Our method

How we diagnose and resolve the problem

01

Pre-survey discussion

We ask about the property age, the history of the problem, recent building work and whether the damp is seasonal — this narrows the likely cause before we arrive.

02

Instrument survey

Protimeter readings, hygrometry, thermal imaging and where appropriate carbide or gravimetric testing are recorded room by room.

03

External and structural inspection

Ground levels, rainwater goods, pointing, render, thresholds, sub-floor vents and roof details are all checked as potential moisture routes.

04

Written report and costed options

You receive photographs, readings, the diagnosis and a fixed-price schedule of works, along with anything you can do yourself at no cost.

If your property does not need remedial damp proofing we will say so in writing. Our survey fee buys you an answer, not a sales pitch.

Questions

Damp Surveys FAQs

How long does a damp survey take?

Most residential surveys take between one and two hours on site, with the written report issued within two working days.

Do I need a survey before buying a house in Banstead?

If your homebuyer report flagged elevated moisture readings, yes. A specialist survey tells you whether the issue is cosmetic, a maintenance item or a significant cost, which is useful in price negotiation.

Will the report be accepted by my mortgage lender?

Lenders generally accept a written specialist report that identifies the cause, the works required and the cost. We format reports with this in mind.

Need help with damp surveys?

Book an independent survey and get a written answer — including if no damp proofing is needed.

Call now
SBC House, Restmor Way, Wallington, SM6 7AH