Johnson Bros Hardware first opened in Avalon in 1957, by John and Bob Johnson. In 1989, a second Store was opened at 3 Mona Vale Rd, Mona Vale. This Store went from strength to strength and moved to larger premises in 2003, at 51 Bassett St, Mona Vale, the current location.

In October 2008, Johnson Bros acquired Hardwoods Australia, a timber merchant specialising in Australian Hardwoods. The name was subsequently changed to JBH Timber and in October 2009 moved to the units next door to the hardware store.

Whilst John and Bob still have an interest in Johnson Bros Mitre 10, the day to day running is left to Johns sons and daughters. John has 5 sons, 3 daughters, 1 son-in-law and 2 daughters-in-law involved in the stores, making it a true Family business.

From the outset, Johnson Bros has prided themselves on
offering excellent customer service, and this has carried through to the present. The Avalon store is in a handy position, offering customers basic hardware and household items to the people in the upper peninsula of Sydney's Northern Beaches. The Mona Vale store can, and does, service the Sydney Metropolitan area for all facets of the building industry, from foundation materials through to roofing. They also specialise in offering a great range and service for the DIY and home handyman.