Ph 9341 5337
Home   ›   About Us   ›   The Team

The Team

Ralph BrewerRalph Brewer, Managing Director and Builder

A qualified builder and carpenter, Ralph Brewer has managed a breadth of home constructions over his two decades in the building industry. These range from period home renovations to superior, tri-level riverfront luxury properties.

Ralph personally ensures that his high standard of quality is maintained across every aspect of the construction process.



“I love living and working in this community. While choosing to renovate is a big decision, all of my clients are so glad they finally made those long-awaited improvements. Call me old fashioned, but I think that being hands-on in every project is the only way to ensure absolute quality, value for money and client satisfaction. I also make sure we leave a clean site at the end of each day – it usually gets me another cup of tea!” – Ralph Brewer, Managing Director of Exactus Homes



Gus, EstimatorGus Martyn, Senior Estimator

Our latest addition to the team, Gus is a highly capable estimator with 5 years of Estimating experience in WA. His history in the structural steel industry and site management experience have contributed to his practical and efficient approach to his work at Exactus.

Gus delivers estimates and quotes that are as comprehensive and accurate as possible, so our clients have the best indication of costs and timings prior to signing up with us.




Sandra Brewer

Sandra Brewer, Marketing Manager

Sandra is joint Founder of Exactus with her husband, Ralph. She is an experienced brand consultant, and leads the Exactus team to manage all aspects of the business, including financial management, HR, legal and, of course, marketing efforts.

Sandra also works hard to develop the second generation of the Exactus team, with three sons poised to take over the business on the occasion of their parent’s retirement (although as they are all at primary school, that might be some years away). Sandra is also a member of the HIA Legal and Industrial Relations Committee.

Glengariff Drive kitchen

Testimonial from Mark & Gina, Floreat

Rated Exactus 10/10 “Being a first time renovator, I wasn’t sure what to expect given…


Skipton Way entry

Testimonial from Julia & Simon, City Beach

Rated Exactus 10/10 “For our first renovation, we have had a great experience with Exactus…