I had a 4m extension built on to the front of my existing shed. This new extension was built by Coastline Sheds of Armadale. From the get go, Rene and his staff were extremely easy to deal with. Their professionalism, openness, friendliness and their service was second to none.
The existing shed was built in 1967 with asbestos panels walls screwed to wood purlins (which I had removed professionally). The issue of marrying a new build structure to an existing shed was not going to be easy. However, I took detailed photographs and provided accurate measurements of the existing shed which provided information on how Coastline Sheds would have to marry the new shed extension.
Coastline Sheds staff constructed the new shed and within their documentation, provided a list of recommended companies that assemble sheds, one of which was Shed Build WA who did a great job, marrying the new shed to the old. I was very pleased with the result.

Approximate cost: $6000