Registered Master Locksmith in Melbourne | MLAA Member.
Private Security Business Registered. Fully Insured and Covered.
Prompt, Reliable & Professional Locksmith Services – Over 35 Years Experience.
The Lock Guy has been providing the highest quality residential locksmith services with their well equipped vans throughout the Diamond Creek suburb, as well as most of the Melbourne region since 2001.
As a trusted member of the Master Locksmiths Association, we are extensively experienced in Commercial, Residential and Automotive locksmith services. Because of this you are guaranteed quality workmanship by a security professional who abides by a strict Code of Ethics with current public liability insurance.

Have you moved into a new home in Diamond Creek? Then getting your keys recoded is a good idea. This also applies if your keys have been stolen. We also repair and service locks when not they are not working correctly or in need of realignment. It best to get this done as soon as you notice an issue, to make sure you are not unexpectedly locked out of your home. If you are looking to upgrade security in your Diamond Creek home we supply and fit new locks. This includes new smart locks.
Getting locked out is always a major disruption to your day. Whether you are locked out of your Diamond Creek home, business, shop or car The Lock Guy will be there to provide you with a quick and reliable solution. We can also help with other locksmith emergencies. These include the replacement of damaged locks after break-ins, re-keying of locks, key replacements and installing deadlocks. If you need a safe, including fire resistant ones, we can also advise on the latest Australian made options.
The Lock Guy provides professional commercial locksmith services throughout Diamond Creek and greater Melbourne. We specialise in practical security solutions designed to protect your business and commercial properties.
Our team can install Restricted Master Key Systems, giving controlled access tailored to your organisation’s needs. We also supply and fit high-quality locks from trusted brands including Lockwood and Borg.
Builders and contractors can take advantage of our construction keying service for easy site access during projects. Once work is completed, master key access is removed, securing the property for new tenants or owners.
Locked out of your car or misplaced your keys in Diamond Creek? The Lock Guy offers trusted automotive locksmith services across Melbourne. Whether your keys are stuck inside, broken in the ignition, or you need a replacement remote, we’re ready to help.
We specialise in Ford, Holden, Nissan, Mitsubishi, and Jeep vehicles. Please note that European makes and models are not serviced.












What locksmith services do you offer in Diamond Creek?
We provide a wide range of locksmith services in Diamond Creek, including lock installations, repairs, and rekeying. Our locksmith services include those for residential, commercial, and automotive needs.
Do you provide emergency locksmith services?
Yes we do. However, we only provide these services during our working hours of 8.30am to 5.00pm Monday to Friday. Outside of these hours, we recommend contacting a 24/7 emergency locksmith service.
We are also closed on the weekends and public holidays.
Are your locksmiths licensed and insured?
All our locksmiths are fully licensed and insured, ensuring you receive professional and reliable service.
Is the Lock Guy a member of a professional locksmith association?
Yes, the Lock Guy is a member of the Master Locksmiths Association.
I have locked myself out of my Diamond Creek home – can you help?
Of course. We provide home lockout services in Diamond Creek, as well as the rest of Melbourne, ensuring you’re back inside your home in no time.
Do you install smart locks in Diamond Creek?
We specialise in installing smart locks for homes and businesses in Diamond Creek to enhance security and convenience.
I’ve just moved into a new property in Diamond Creek. Do I have to replace all my locks?
No, you don’t have to replace all your locks. Instead, we can simply rekey your existing locks to stop the old keys from working and create new keys. This is far more cost effective than replacing your locks.
Do you offer commercial locksmith services for businesses in Diamond Creek?
Yes, we provide a range of commerical locksmith services. This includes master key systems, high security locks, and access control solutions tailored to businesses in Diamond Creek.
Can you install and repair safes for Diamond Creek businesses?
Certainly, we offer safe installation and repair services to keep your valuables secure at your Diamond Creek business.
Do you provide car locksmith services for cars in Diamond Creek?
Yes, we offer a range of car locksmith services. This includes key duplication, ignition repairs, and transponder key programming. However, we do not provide these services for European cars
Can you assist with car lockouts in Diamond Creek?
We provide fast and reliable car lockout assistance for Diamond Creek residents, ensuring you’re back on the road quickly. However, we only provide this service between our business hours of 8.30am to 5.00pm Monday to Friday.
Outside of these hours, we recommend contacting a 24/7 emergency locksmith service.
Do you have a shop I can visit?
No, we are a Mobile Locksmith in Melbourne where we come to you in one of our Fully equipped Mobile Servicing Vans.
WE SERVICE ALL OF DIAMOND CREEK
as well as the following Melbourne suburbs:
Alphington, Arthurs Creek, Ashburton, Ashwood, Attwood, Balwyn, Balwyn North, Bellfield, Bend of Islands, Blackburn, Box Hill,
Briar Hill, Broadmeadows, Brunswick, Bulleen, Bundoora, Camberwell, Campbellfield, Canterbury, Carlton, Chirnside Park, Christmas Hills, Clifton Hill, Coburg, Collingwood, Cottles Bridge, Craigieburn, Croydon, Dandenong, Diamond Creek, Doncaster, Donvale, Doreen, Eaglemont, Eltham, Essendon, Epping, Fairfield, Fawkner, Fitzroy, Glen Iris, Glen Waverley, Greensborough, Hawthorn, Heathmont, Heidelberg, Hurstbridge, Ivanhoe, Kangaroo Ground, Keilor, Kew, Lalor, Lilydale, Lower Plenty, Macleod, Malvern, Melbourne, Mernda, Mickleham, Mill Park, Mitcham, Mont Albert, Montmorency, Mooroolbark, Mount Dandenong, North Melbourne, Northcote, Nutfield, Park Orchards, Pascoe Vale, Panton Hill, Plenty, Preston, Research, Richmond, Ringwood, Rosanna, Rowville, Smiths Gully, Somerton, South Morang, Strathewen, Surrey Hills, Templestowe, Thomastown, Toorak, Tullamarine, Vermont, Viewbank, Warrandyte, Warranwood, Watsonia, Watson Creek, Wattle Glen, Whittlesea, Windsor, Wollert, Wonga Park, Yallambie, Yan Yean, and Yarrambat
Diamond Creek is a picturesque suburb located approximately 25 kilometres northeast of Melbourne’s CBD, within the Shire of Nillumbik. Surrounded by natural beauty, it offers a semi-rural lifestyle with easy access to urban amenities. The suburb features a range of parks, walking trails, and recreational facilities. Diamond Creek is well-served by public transport, including the Diamond Creek railway station. The Lock Guy delivers reliable locksmith services to the Diamond Creek community.