Based in Geelong and formed in 1995, Management Maintenance and Development (MMD) specialise in responsive and preventative home & commercial maintenance, disability upgrades, pre-sale repairs,maintenance and renovations. MMD is Geelong’s most experienced disability renovation and modifications provider. We work on home modifications for a variety of reasons: Old age Motor accident Work place accident Physical impairment NDIS Wheel chair access There are any number of reasons why renovations and modifications may be required. Bathroom and kitchen access and mobility solutions, ramp access.