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Company Profile

Over the past 30 years, Stephen Koelewyn has conducted over 10,000 inspections on properties delivering quality reports to assist purchasers and property owners in making an informed decisions about the their property. 

In June 2004 Stephen Koelewyn chose to alter the business name to AUSINSPECT which is essentially an abbreviation of Australian Pre-Purchase Inspections

AUSINSPECT has some of the most advanced technology for the detection of termites currently available in the Australian market. Many of the techniques and equipment that are used were personally developed by Stephen Koelewyn.

In late 1994, Stephen Koelewyn was the first in the world to develop the technique of using Thermal Imaging to detect concealed termite activity.  Competitors only started using this system in 1999.

AUSINSPECT replaces older Thermal Imaging camera (July 2002) with the latest generation Thermal Camera, we now carry out a thermal scan while performing most of our day to day inspections.

AUSINSPECT also provides a service to other builders and pest controllers whom need an additional expert opinion and verification of best industry practice.

All inspections carried out by AUSINSPECT are performed by Stephen Koelewyn, AUSINSPECT does not employ other inspectors nor do we employ sub-contractors to carry out inspections. Stephen Koelewyn personally writes all reports provided by AUSINSPECT.

Tammy takes care of administration, bookings and the office to enable Stephen to concentrate on what he knows best, inspecting properties, termite management and providing building services.

We are members of the following associations:-

  • The Institute of Building Consultants
  • AEPMA - Australian Environmental Pest Managers Association

We take pride in our work therefore we have many satisfied customers, our main source of business has always been referral by our satisfied customers.

Our Motto



AUSINSPECT is owned and run by Stephen Koelewyn

Stephen Koelewyn has been in the building industry since 1977.

Stephen Koelewyn has been affiliated with pest control since childhood and carries on a family tradition of over 40 years.    Stephens father Lucas Koelewyn, born 12th October 1919 died 20th October 2004

 His qualifications and affiliations include:

  • Qualified- Builder, NSW. AUSTRALIA       Builders License 45109c

  • Qualified Building Consultant, NSW. AUSTRALIA                BC213

  • Qualified- Urban Pest Control                               - PCO Lic 2025   

  • Certificate IV in Asset Maintenance & Pest Management

  • Qualified- Tree Surgery/Arboriculture

  • Accredited Building Consultant

  • Accredited Timber Pest Consultant

  • Accredited Infra-Red Consultant

  • Accredited Termite Specialist

  • Damp Specialist

To order an Inspection please print a Pre Inspection Agreement form and fax it to our office or, preferably, fill in the electronic form & submit online.

I would love to hear from you. Call Steve

Stephen Koelewyn

Telephone: - 0418 274 099

Postal address

63 Tivoli Esplanade, COMO 2226

Electronic mail -

General Information:

NSW Fair Traiding Check your tradiece licence before you hire

Member of Institute of Building Consultants

This site has been designed & created by Stephen Koelewyn

Stephen Koelewyn - NSW Builders Licence 45109c - Building Consultant Licence BC213 (Now Obsolete in NSW) - Pest Management Technician Licence 5067195
Send mail to with questions or comments about this web site Links to my site are permitted and would be appreciated. Copyright 1992-2021 AUSINSPECT - Site Content by Stephen Koelewyn
Last modified: 15 January, 2022

AUSINSPECT is well equipped to carry out specialised building works, termite treatments, termite nest location, termite nest eradication, effective repairs to buildings and property maintenance. We own our own machinery and truck for efficient, cost effective undertaking of works, our specialty is the repair of termite damaged and decayed structures.


Please visit my other web site, PESTY