For homeowners, tenants and HOAs

Moisture and leak inspection: finding the cause

Independent diagnosis with a moisture meter and a thermal imaging camera, throughout the Netherlands. We do not sell injections or ventilation systems, only the facts. Fixed price, report within 5 working days.

Fixed price €544.50 incl. VAT
Moisture meter and thermal imaging camera
Report within 5 working days

Nederlandstalig? Offerte aanvragen in het Nederlands.

See a sample report first (pdf, in Dutch, fictitious home)

Moisture is a symptom, not the cause

Painting over it solves nothing

A damp patch on the wall, mould in the corner of the bedroom, a musty smell in the basement: these are symptoms. The cause is somewhere else. A leaking gutter, a broken pipe, rising ground moisture, a thermal bridge or simply too little ventilation. As long as that cause is not found, the moisture comes back, however often you repaint.

The cause is established with a moisture meter and a thermal imaging camera, non-destructively. You receive a report with the cause per damp spot, the causes ruled out and a step-by-step repair plan. With that you request targeted quotes, without depending on the judgement of the company that wants to do the work.

Independent: we do not sell damp-proofing
Moisture meter and thermal imaging camera, non-destructive
Cause analysis per damp spot with repair advice
Fixed price €544.50 incl. VAT, report within 5 working days
Ventilation grille and drainpipe on a facade, typical points when tracing the cause of damp
When you need it

Four situations in which people call us

Home owners, tenants, buyers and boards of homeowners associations throughout the Netherlands.

💧 Recurring damp patches

After repairs or repainting the moisture keeps coming back and nobody knows why.

🏢 Leak in an apartment

Unclear whether the cause is in your home, at the neighbours or in the common parts of the VvE.

🏠 Before or after buying

You saw traces of moisture at the viewing, or found them after the transfer and want to know what is going on. Often combined with a pre-purchase inspection.

📄 Insurer or counterparty asks for evidence

You need an independent report to substantiate a claim or a liability notice.

What we investigate

All forms of moisture, with moisture meter and thermal imaging camera

Measurements instead of guesswork. The thermal imaging camera shows temperature differences that indicate moisture and leaks; the moisture meter establishes the moisture content of walls, floors and ceilings. No drilling or opening up.

⬆️

Rising damp

Ground moisture that rises through the foundation and brickwork, recognisable by a tide mark and salt efflorescence at the bottom of the wall.

🌧️

Penetrating damp

Rainwater that penetrates the facade through porous brickwork, poor pointing or cracks.

🔧

Leaks

From the roof, the gutter, pipes, window frames or the bathroom of the upstairs neighbours. We locate the source.

❄️

Condensation and thermal bridges

Moisture that settles on cold surfaces due to insufficient insulation or ventilation. Often the cause of mould.

🔦

Crawl space

Water in the crawl space, a wet floor, damp beams and the consequences for the floor above.

📷

Thermal images and readings

Thermograms and measured values per location, so the diagnosis is reproducible and substantiated.

What you receive

A diagnosis you can act on

Within 5 working days after the inspection, with a phone explanation in English.

01

Measurement results

Moisture values per measuring point, with an explanation of what is normal and what is not

02

Thermograms and photos

Thermal images and photos per damp spot, so the findings are visible and verifiable

03

Cause per damp spot, causes ruled out

What the cause is, where it is, which causes have been excluded and who is responsible: you, the neighbours, the landlord or the VvE

04

Step-by-step repair plan

What to do first and what can wait, in the order that avoids paying for the interior finish twice. Usable for insurer, VvE, landlord or contractor

The report is written in Dutch. Open the sample report (pdf) for a fictitious apartment in The Hague to see the structure; we explain your own report to you by phone in English.

How it works

From request to report in 4 steps

One inspector, one point of contact, English throughout.

1

Request

By phone on 085 902 7577 or via the form. Describe briefly where you see the moisture and since when.

2

Reply within 24 hours

We confirm the fixed price and plan a date, preferably after a period of rain if a leak is suspected.

3

Inspection on site

1 to 2 hours with a moisture meter and a thermal imaging camera. Non-destructive.

4

Report within 5 working days

Cause, measurement results, thermograms and repair advice in one digital report.

Transparent pricing

What does a moisture inspection cost?

Moisture and leak inspection

€544.50
fixed
incl. VAT, up to 2 hours on site including the report

One fixed price for the inspection on site (up to 2 hours) including the report. Travel costs in the Randstad are included; outside it we charge travel costs by distance, stated in the quote in advance. Private clients cannot reclaim VAT, so our price already includes 21 percent VAT.

Additional work: €114.95 per hour incl. VATOnly in complex situations that require more than 2 hours on site. Always agreed in advance, never afterwards.
Follow-up in case of a disputeIf the cause lies with the neighbours or the VvE, we can extend the investigation into a legally usable damage report.

✓ Inspection on site (up to 2 hours), English-speaking inspector

✓ Thermal images and measurements per location

✓ Cause analysis per damp spot, causes ruled out and a step-by-step repair plan

✓ Digital report (PDF) with phone explanation in English

✓ Travel costs included within the Randstad; outside it by distance, stated in the quote

Our quote form is in Dutch, but you can fill it in with your details in English; we reply in English within 24 hours. Prefer to talk first? Call 085 902 7577 or email info@acvastgoedadvies.nl.
FAQ

Questions about the moisture inspection

A free damp survey is offered by companies that sell damp-proofing: injections, basement tanking, ventilation systems. The survey is the sales pitch. We do not sell any of that and have no interest in the outcome. You pay for an independent diagnosis and receive repair advice with which you can request quotes from whoever you choose.
No. The investigation is non-destructive. The thermal imaging camera reveals temperature differences that indicate moisture, leaks and thermal bridges, and the moisture meter establishes the moisture content of walls, floors and ceilings without damage. Only if the cause cannot be established this way do we advise destructive investigation, always agreed in advance.
This is common in apartments: a leaking roof, a shared pipe or the balcony of the upstairs neighbour. Our report states where the cause is and who is responsible: you, the neighbours or the VvE. If it comes to a dispute, we can extend the investigation into a damage report that holds up with lawyers, insurers and the court.
That depends on the cause and your policy. In case of a sudden leak, such as a burst pipe, many building and contents insurances cover the cost of tracing the cause. Rising damp, condensation and overdue maintenance are usually not covered. Our report is suitable as supporting evidence for your claim; check the cover with your insurer beforehand.
The report is written in Dutch, so that it can be used with Dutch insurers, contractors, the VvE and, if needed, in court. All communication is in English, and we explain the findings and the repair advice to you by phone in English.

Find the cause, then fix it once

Fixed price €544.50 incl. VAT, reply within 24 hours, report within 5 working days. Independent, throughout the Netherlands.