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22 Years
experience
Emergency
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Professional HVAC Solutions in Emu Plains
Established in 2004, Dj Dair has built a reputation for delivering high-quality solutions tailored to residential and commercial needs. Our team, led by owner-operator Daniel DuRieu, combines over 18 years of industry experience with formal qualifications including Certificate III in Electrotechnology and ARC Refrigeration Handling accreditation. We specialise in comprehensive design, installation, maintenance, and repair services for air conditioning and refrigeration systems, from split systems to fully ducted solutions. Our commitment to customer satisfaction is demonstrated through 24/7 on-call support, competitive pricing, and adherence to environmentally responsible practices. Backed by partnerships with leading brands like Panasonic and industry memberships such as NECA, we ensure every project meets exacting standards.

With a focus on technical excellence and client communication, we provide customised solutions that prioritise energy efficiency, system longevity, and indoor climate comfort. Our technicians undergo rigorous training to maintain proficiency in emerging technologies, guaranteeing reliable service for both new installations and legacy systems. Operating across Penrith, the Blue Mountains, and surrounding areas, we combine local expertise with national compliance frameworks including QBE Public Liability insurance and NSW Contractors Licence 272418c.
Services
Design Installation Maintenance Repairs Commercial HVAC
Details
  • Year established: 2004
Highlights and features
  • Owner-operator with 18+ years industry experience
  • 24/7 on-call emergency service available
  • Certificate III qualified technicians
  • ISO-compliant maintenance and installation processes
  • NECA membership ensuring industry best practices
Associations and certifications
  • NECA Member N012849
  • ARC Refrigeration Handling Licence L043322
  • ARC Refrigerant Trading Authorisation AU42820
What people say
On time helpful Quick response Very professional Easy to deal with Top quality service
Services
Air Conditioning Design
Custom HVAC design services tailored to property specifications including building structure, climate conditions, and occupancy needs. Our technicians conduct site assessments to determine optimal placement and system requirements. We provide detailed schematics and capacity calculations to ensure energy-efficient operation while maintaining aesthetic considerations for both residential and commercial installations.
Installation
Professional installation of split systems, ducted units, and commercial HVAC equipment. Our licensed electricians ensure compliance with Australian standards while optimising system performance. We handle all aspects from equipment selection to final commissioning, with ongoing support for system optimisation and energy management across Western Sydney locations.
Maintenance
Preventative maintenance programs to extend equipment lifespan and maintain manufacturer warranties. Our technicians perform comprehensive checks including filter cleaning, refrigerant level verification, and electrical component inspections. Annual maintenance packages include detailed condition reports and proactive fault detection to ensure year-round system reliability.
Repairs
Emergency repair services for all HVAC system types including split, ducted, and VRV systems. Our team carries diagnostic equipment to identify issues such as refrigerant leaks, electrical faults, and component failures. We provide transparent cost estimates before repairs and offer same-day service for critical system failures.
Commercial HVAC
Tailored climate control solutions for commercial premises including offices, schools, and hospitality venues. Our services cover system design, installation, and maintenance for large-scale operations. We specialise in minimising business disruption during installations while ensuring compliance with commercial energy efficiency standards and workplace safety regulations.
People
Daniel DuRieu
Owner Operator
With 18 years in HVAC and electrical systems, Daniel holds Certificate III qualifications in electrotechnology and refrigeration. He previously worked with Lower Mountains Air Conditioning before establishing D.J.DuRieu in 2004. His expertise spans residential and commercial projects, focusing on technical excellence and customer service.
Questions
What HVAC services do you offer?
We provide complete HVAC solutions including system design, installation, maintenance, and emergency repairs for residential and commercial properties across Western Sydney.
Are your technicians qualified?
All technicians hold Certificate III qualifications in electrotechnology and refrigeration, with ongoing training to maintain industry accreditation standards.
Do you offer emergency services?
Yes, we provide 24/7 emergency HVAC repair services with on-call technicians available year-round for urgent climate control issues.
What areas do you service?
We operate across Penrith, Blue Mountains, and surrounding Western Sydney regions including Emu Plains, Glenbrook, and Riverstone.
How much is annual maintenance?
Yearly maintenance starts at $154 Inc. GST for a single system, with discounts available for multiple units and commercial contracts.
Can you service commercial properties?
Yes, we specialise in commercial HVAC solutions for offices, schools, and hospitality venues with tailored maintenance programs and emergency response plans.
Reviews (2)
Margaret Etcell
Nov 27, 2019 Report
Customer service was wo dwrful and the yoing man who installed a our aircon was great. arrived on time and completed on time
Tony Jacques
Jul 30, 2018 Report
We are an RSL Sub-Branch and recently had our beer fridge chiller damaged in a storm - warm beer!! We called a number of companies around Blackheath but had very poor response until we happened on DJ Rieu. Excellent and fast response with a set of very good (and cost effective) suggestions - not pushy at all. We settled with replacing with a new unit (5 year warranty important and price critical) and it was delivered on Sat 12 Jan, when planned, very efficiently and with good humor. We are delighted with the service, we feel we can trust the advice given (we are no fools) and we are exploring other