For Builders

We provide specialist timber inspections, timber testing and weathertightness inspections.

Expert Timber Inspections and Testing

Visual, microbiological, timber treatment and weathertightness inspections

Call on the experts when the council or your clients demand weathertightness or timber inspections

Moisture Detection Company can help.

  • When the council demands an independent timber inspection
  • When you need to know the treatment (if any) that was used in the framing of the house
  • When you want to know if, or where a house is leaking without cutting open the cladding or the gib
  • When you don’t have the tools to measure moisture levels inside the framing
  • When you have done a Builder’s Report, but couldn’t answer the questions about whether or where the house actually has leaks or decay.
  • When you want to know whether the repairs that you have done have actually stopped the leaks.

When the framing timber on your site has been exposed for too long, and the council requires an expert inspection.

Long term exposure to rain leaches out boron and allows moulds and fungi to establish.

NZS 3640:2003 provides for boron treated H1.2 timber to be left open to the weather for up to 90 days.

Council inspectors frequently require an expert inspection if the 90 days is exceeded, especially if the timber is obviously affected by moulds.

We inspect the timber condition, take samples and test them for treatment levels.  Our report includes recommended remedial actions.

Microbiological testing of core samples can be arranged if the timber condition is suspect.

Look after your clients by giving them professional, evidence-based advice.

Moisture Detection come to your site, gather samples, test and inspect them, then issue a report certifying the treatment used in the house – or you can send the samples to us for testing.

Timber Treatment Testing

Accurate, Fast and Inexpensive Treatment Testing

We use the latest laboratory grade reagents to test for the most common timber treatments used in New Zealand; boron, CCA, and LOSP Tin.

All samples are tested alongside known treated control samples.  The results show what treatment is present and indicates the treatment strength relative to the known control sample, which meet the required strength.

Photographs of all samples and the controls are included on the Timber Treatment Test Certificate.  If MDC take the samples, we certify where the samples were taken from.

Some laboratories required large pieces of timber.  We only require some shavings from a drill hole, which can be extracted with no visual impact on the house.

Before councils will allow closing in, they want to be certain the exposure has caused no damage or loss of treatment to the framing.

If we discover damaged timber we can arrange for microbiological testing to satisfy council.

Contact us for more information on our timber treatment testing.

Weathertightness and Leak Inspections

Whether you need help just locating a leak without tearing the house apart, or want a comprehensive invasive moisture and decay inspection, we have the solutions.

Please visit our Pre-Purchase Weathertightness Inspections page for information on the levels of inspection that we offer.

We can invasively inspect just one location, or quickly and inexpensively check all potential leak points for moisture and decay – stop ends, high ground lines, windows, gutters, showers, parapets, deck connections, pergolas – we all know that they can leak.  We find out if they are leaking and if this has actually caused any damage.

We will work with you to diagnose the problems and offer the best solutions for you to present to your client.

Contact us for more information on how we help you to provide the best service and results for your client.

Selling a plaster clad house after moisture probes and weathertightness repairs

If your client has a house with monolithic cladding, this is the best advice that you can give them.

Install Mdu Moisture Probe System, Measure Timber Treatment and Assess Decay. Our patented moisture probe system has been measuring and monitoring for leaks in over two thousand New Zealand homes going back over fifteen years. 

A full description of our probe system is available here.

Target repairs to managing the leaks – we can provide advice on how to best repair leaks – we have been doing this for 16 years.

Treat timber that is vulnerable to decay with our unique treat-in-place RotStop system.

Modify or remove high risk features on the house that can cause leaks and score black marks from pre-purchase inspectors when your client wants to sell, for example high ground lines. We have proven repair systems for many of these risk features.

Monitor the moisture probes to ensure that the leaks are repaired. 

Call Now on  (09) 271 – 0522