or contact Crest today on 13 000 CREST

Crest has a team of qualified Mechanical Engineers and drafters with a wealth of experience in mechanical design and specialising across a diverse range of industries including Commercial, Retail, Industrial, Residential, Hotels, Education, Health and Aged Care. Our Estimating team has additional Engineers with Design and Construction experience, which allows development of the most appropriate engineering solutions for our clients.

Our wealth of expertise enables us to provide a high level of engineering involvement with all projects we undertake.

The engineering division’s scope can include the following as required for a project or maintenance agreement:

  • Thorough final equipment selection and detailed design development
  • Design and Construct roles
  • Investigation and review of existing systems
  • HVAC options reports
  • Complete design solutions
  • Assistance to other engineering consultancies with existing system reviews
  • Review of existing systems for code compliance and performance
  • Development of testing procedures and processes for Annual Certification and documentation

Our Engineering team is familiar with the latest advances in mechanical design and is experienced with current technology equipment and control systems.  In addition, our Engineers regularly develop designs to suit energy accreditation systems such as Greenstar and NABERS.  These designs compliment those achieving pure energy efficiency or peak load reduction.

Having inhouse engineering expertise provides various benefits to our clients, with the following capabilities:

  • Inhouse designs for replacement and new HVAC installations
  • Dilapidation Reporting
  • Lifecycle Cost Reporting
  • Essential Services Audits
  • Producing Baseline Data
  • Overseeing annual testing and providing certification

Our Engineers are fully conversant with the relevant Building Codes, Australian Standards and design specifications and work closely with our inhouse accredited Competent Fire Safety Professionals (CFSP’s) to provide engineering advice on compliance to these. Our senior Engineers are affiliated with various industry bodies and are recognised as Chartered Professionals by Engineers Australia and listed on the National Engineering Register.

Together with our Engineering team, Crest provides the complete solution to our clients by ensuring our work is compliant and exceeds their requirements.

Hear from our customers

Very professional from quote to installation. Great install team, good problem solving, cleaned up after themselves and great price. Can't recommend them highly enough.
Jason Wong
Jason Wong
03:38 23 Dec 15
I would just like to acknowledge the professionalism of the install team headed by Tyrone. The guys were punctual, polite and respectful of the work they were doing in and around the house whilst I continued to conduct my business from home. They were a friendly bunch of guys to talk to, and from my perspective, probably the best tradies I’ve had working around here for a long time.My experience in dealing with he Crest team has been very positive and you guys have always kept me informed of progress.The system is running beautifully, and I want to thank you all for the professional and positive transaction.
Robert Mollee
Robert Mollee
23:49 17 Jan 18
Outstanding . With same day response and solution within 24 hours during what must be the busiest time of the year Crest were wonderful. The technician was speedy, on time and professional. Thank you.
Simon Johnson
Simon Johnson
10:06 28 Dec 17
5 stars…. They deserve much more.Timely action - 10 out of 5Understanding our problem - 10 out of 5Sending a professional we can trust - 10 out of 5Sept 2021 - Our Actron Aircon unit compressor stopped working. They acted fast and got the replacement done in a quick timeframe (pls remember it was peak of lockdowns and getting things done quickly was a rare dreamDec 2021 15th Dec, we found an issue that the 2 zones are not working (upstairs bedrooms). This happening just few days prior to holidays was a nightmare. Called them. They said they can fix it on 17th. When I told the lady on phone that kids had a sleepless night. She said give me some time. Then Tahlia called me and organised the repair person Travis for same afternoon. He came early and diagnosed the issue. The issue seemed to be with the zone motors initially, so repair couldn’t be done same day, but he kept trying and left the zones open so that we can have a proper sleep. Then it looked like the panel had some issue. Next afternoon he came up and fixed the entire system. All fault fixed, job without even the need to replace any part. Very very reasonable money charged. Great professional Travis & a great team member Tahlia. 👏🏻👏🏻👏🏻
22:20 20 Dec 21
Always fantastic and friendly service. We had ducted air conditioning installed in the past by Crest Air and this time we got a split system installed. With our recent split system installation, from quotation to getting it installed, it was very quick and professional. We have been with Crest Air for the past 5 years and will continue to turn to them for their services.
23:46 14 Jun 20
We always have a regular service of our air conditioning. Their advice and thoroughness in the servicing keeps the long Jevity and also working efficiently, we will always have regular servicing of the air conditioning recommended by Crest as to professionalism that they display.
Garry Cripps
Garry Cripps
00:21 02 Oct 23
These guys know their business and I'm very happy that I chose Crest. They sized the system perfectly and advised me to opt for a bigger unit and I'm glad I listened. They gave me the best price in the market. The installation team were equally good, came in as promised, were meticulous and completed the job, cleaned up any waste before leaving. To get an early installation date was a challenge as it was right in the middle of summer but it was well worth the wait. Overall a very pleasant experience.
Boben Varghese
Boben Varghese
12:15 06 Mar 18
First class service from start to finish. From the initial telephone call with Kristina, a visit by Ed and then the crack instillation team of Paul, Nick, Grant, Josh & Mitch. The instillation team worked tirelessly and faultlessly to complete the removal and instillation of a new 20kw Daikin ducted system into our two storey home. What was discussed and promised was delivered..... not often that you can engage a company that every member of their team is on the same page. I'm a very happy customer, thank you Crest.
Tom Vesperman
Tom Vesperman
22:32 19 Dec 17
Great service, lovely guys, the install was very professional without any issues at all.Thanks again.
Nick MM
Nick MM
04:44 27 Aug 14
Very happy with the ducted aircon & a split system installed by Crest Air (Mitsubishi Electric 16.5kw/20.0KW) last month. Guys did a fantastic job. Special thanks to ED, Bobbi & Devan. From quoting to final installation the team acted professionally. The install team also removed the old ducted air for me.Crest air installed a large split system (Mitsubishi Electric) in my previous residence 10 years ago and it still runs perfectly. This is probably the reason I went with Crest air as I know you are dealing with a reputable company. The install service is as important as brand name aircon you choose.
Xiao Ming Wu
Xiao Ming Wu
10:25 20 Dec 22
Wonderful service, would recommend Crest to everyone.
Catherine Jupp
Catherine Jupp
02:16 15 Feb 21
Extremely nice office, kept very clean and the people are lovely and welcoming.
Amelia Straub (Amie)
Amelia Straub (Amie)
13:29 02 Jun 22

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Taylor Construction Group would like to take this opportunity to thank everyone involved from your company for their efforts in completing the Law Court project. We appreciate the hard work put in by all and understand that if it wasn’t for the collective effort, we wouldn’t have achieved such a fantastic result for the client, which allowed them to open each stage on their desired date. We have enjoyed working with you on this project and I hope we can continue the good working relationship we have formed on any projects that we may work on in the future.
Tom Keller
Project Manager | Fitout & Refurbishment / Taylor Construction Group
Hi Andrew, as you may be aware, we have recently completed the project at Waterloo Rd. Its pleasing to have Goodman respond so positively to the final product that we delivered. In particular, that we delivered a quality product that finished on time and within budget. As a Principal Contractor, we understand that we are only as good as our Subcontractors. Its only with the help of skilled and collaborative businesses like yours that we are able to deliver projects in the manner that we do. On behalf of Lipman I want to thank you and your team for their effort on this project. I hope to see you on the next one.
Scott Gleeson
Project Manager / Lipman
Congratulations to receive recognition from the Green Building Council of Australia as member of the month. We also acknowledge Crest as one of the most experienced mechanical contractors with regard to VRV technology.
Gary Knox
Engineering Manager / Daikin Australia Pty Limited
On behalf of Taylors and our project team I would like to thank you and your team for all your effort, co-operation and commitment to ensuring a high standard of quality and safety on the project and successfully delivering the trade works on time and within cost. We look forward to the opportunity to work with you on future projects.
Wayne Bass
Project Manager / Taylor Construction Group Pty Ltd
Most of us would have to admit that we’ve had our share of mediocre service from companies in the past. However, some companies are starting to "get it". They realise that in today's global marketplace, consumers have a greater number of choices than ever, therefore they are providing better buying experiences for customers to inspire loyalty, rather than depending on fancy schmancy ad campaigns. So on behalf of Virgin Active Norwest I just wanted to pass on a big thanks to our air conditioning service provider CREST. You have been instrumental in providing quality service at all times and as operations manager for this proud health club, I could not ask for more from your entire team, whether it is your service technician Prav being pro-active in all his work or the service team and yourself responding to all of our issues in a timely problem free manor. Thank you for your support, it is greatly appreciated.
Zaac Schembri
Operations Manager / Virgin Active Norwest
We write to express our appreciation to yourself and your colleagues at Crest Air Conditioning following the recent successful completion of the Heart Research Institute. Ichor Constructions have noted the quality of workmanship, the standard of finishes and the work methods employed by Crest Air Conditioning in completing this project. We believe that the success of this project was due to the effects and cooperative approach taken by all the project team, including Crest Air Conditioning as the Mechanical Services Contractor. We thank you again for your support and cooperation during the Heart Research Institute project and look forward to continuing our working relationship on future projects.
George Kandylas
Director / Ichor Constructions Pty Ltd
Engineering Partners have had a long and successful working relationship with Crest Air Conditioning. This relationship began in 1989 with the construction of a new 12 storey office building in Clarence Street Sydney. Crest Air Conditioning applied themselves very well throughout this project much to the client's satisfaction and to our knowledge still maintain the building to this day. Since that time we have been continually impressed with Crest Air Conditioning's professional attitude and dedication to providing quality air conditioning and mechanical services across a broad range of projects. We have been proud of our success with Crest Air Conditioning to this day. Some of the many projects worked on include: Data Centre - involving a major chilled water system Citywest Office Buildings, Pyrmont 55 Clarence Street, Sydney Parramatta Road, Strathfield Cancer Council 210 Clarence Street, Sydney Waverley College - Performing Arts Centre Blakehurst Aged Care Centre Engineering Partners have no hesitation in recommending Crest Air Conditioning to any prospective client.
Robert Weiss
Director / Engineering Partners
Five D is proud to announce that the Penrith Government Office Building which it manages on behalf of the State Property Authority has received the NABERS 5 Star Energy Rating. Five D Building Manager George Juhasz coordinated the strategy with a team of electrical and mechanical services contractors including CBUS lighting, Grid Electrical, Crest Air Conditioning-Tritech Solutions, Richard Crookes Construction and the State Property Authority. He spoke of the achievement stating “Our combined objective was to reduce the buildings’ carbon footprint by adopting good building management principles.” This achievement recognises the success of the ISO 14001 accredited environmental management system that Five D has developed along with its commitment to environmental sustainability. CEO of Five D Steve Mackintosh spoke of this commitment stating “We view our role in providing facility management services which support our client’s goals of sustainability very seriously and we seize every opportunity to demonstrate that we live by the principles that we espouse. This achievement is a testament to this commitment and will surely lead to more ratings of this kind.” Five D would like to thank all the agencies and organisations who assisted in obtaining this rating and look forward to seeing the benefits to the environment that it will provide.
Five D
Penrith Government Office Building