Guardian Mechanical Services
5 Maddison St, Redfern, New South Wales, 2016
“Air Conditioning & Fire Services”

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Why Choose Guardian Mechanical Services?
Guardian Mechanical Services is highly regarded in Redfern for professionalism and reliability across domestic and commercial jobs. They're known for turning up on time, keeping clients informed through the work, and leaving sites clean, with particular strength in emergency call-outs and larger HVAC projects.
About Guardian Mechanical Services
Guardian Mechanical Services works out of Redfern, New South Wales, handling split system installation, repairs and servicing, ducted and commercial air conditioning, and emergency breakdowns across homes and larger commercial sites. Founder and director Dan Kostan brings over 40 years in the commercial HVAC industry, and that depth shows in the work: people who've had the team out mention jobs done on time, technicians who keep in touch and explain things clearly, and a crew that leaves the site clean and tidy.
The feeling around Redfern is that this is a team you can trust with a tricky commercial upgrade or a straightforward breakdown alike. Locals point to Dan and the crew being honest and reliable, often sorting the problem on the first visit. Emergency call-outs are part of what they do, so it's a sensible option to check availability for your job.
With a reputation built on careful, professional work, Guardian is a sound choice for air conditioning in this part of Sydney. Contact them and have a chat about what you need.
Location
What Customers Say on Google
“Dan and the team were professional, efficient, and delivered an energy-efficient HVAC system that perfectly fits our needs. The installation was smooth and on time.”
“The technician was professional, arrived on time and quickly resolved my issues while explaining everything clearly.”
Source: Google Reviews
Frequently Asked Questions About Guardian Mechanical Services
Guardian Mechanical Services covers split system installation, repairs and servicing, ducted air conditioning, commercial air conditioning and emergency breakdowns. Their work spans homes and larger commercial sites, from HVAC upgrades in Sydney's CBD to a daycare's air conditioner clean, with director Dan Kostan and the team also taking on building and mechanical contracting jobs beyond standard air con.
Yes, emergency breakdowns are one of their listed services, and one client whose commercial AC broke down noted the team came on time and were honest and reliable in sorting it out. For an emergency job in Redfern or nearby, it's best to contact Guardian Mechanical Services directly and explain the issue so they know what to expect on arrival.
People who have had Dan Kostan and the team out consistently mention jobs completed on time, technicians who keep in touch and explain the work clearly, and a site left clean and tidy afterwards. Several customers also point to issues being fixed first time, whether it's a straightforward split system repair or a larger commercial HVAC upgrade.
Contact Guardian Mechanical Services directly through their website or by phone to discuss the job, whether it's a split system installation, a ducted system, or a commercial breakdown. Having details ready, such as the make or model of the unit, site access information, and photos of the problem, will help them scope the work before confirming a visit.
Yes, alongside residential split system and ducted work, Guardian Mechanical Services has handled commercial projects including a medium-sized HVAC upgrade in Sydney's CBD and repairs at a building in Haymarket. Locals describe Dan Kostan and the team as professional and detail-focused on larger jobs, with customer satisfaction treated as a priority throughout.
Contact Details
- Phone
- 1300 914 880
- [email protected]
- Address
- 5 Maddison St, Redfern, New South Wales, 2016
Opening Hours
- Monday
- 7am-5pm
- Tuesday
- 7am-5pm
- Wednesday
- 7am-5pm
- Thursday
- 7am-5pm
- Friday
- 7am-5pm
- Saturday
- Closed
- Sunday
- Closed
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