Professional HVAC Services in Castle Hill, NSW

For over 20 years, Maxim Air has been the trusted provider of complete HVAC solutions for homes and businesses across Castle Hill and the Hills District. Our licensed technicians deliver premium installation, repair and maintenance services for all heating and cooling systems.

Why Choose Our Castle Hill HVAC Services?

✅ Local Experts – We understand Castle Hill's unique climate needs
✅ Same-Day Service – Fast response for urgent repairs
✅ Licensed Technicians – All work meets Australian standards
✅ Transparent Pricing – No hidden fees, upfront quotes

Air Conditioning Installation in Castle Hill

Our expert technicians provide professional AC installation tailored to your Castle Hill property. We specialise in split systems for single rooms, ducted cooling for whole-home comfort, and commercial HVAC solutions for businesses. Every installation includes precise load calculations, energy-efficient system selection, and neat installation with minimal disruption. We offer 5-year workmanship warranties and smart climate control integration.

Air Conditioning Repairs in Castle Hill

Get same-day emergency repairs for all AC issues across Castle Hill. Our licensed technicians quickly diagnose and fix cooling failures, refrigerant leaks, electrical faults and strange noises. We use genuine replacement parts and provide 12-month repair warranties. Available 24/7 for urgent breakdowns, with most repairs completed the same day.

Air Conditioning Maintenance in Castle Hill

Protect your investment with our comprehensive maintenance plans. Annual servicing improves efficiency by up to 30%, prevents unexpected breakdowns and extends system lifespan. Our thorough checks include refrigerant testing, electrical inspections, drainage cleaning and airflow measurement. Priority service available for maintenance customers.

Commercial AC Services

We deliver custom cooling solutions for Castle Hill homes, from compact split systems to whole-house ducted AC. Our residential services focus on quiet operation, energy efficiency and smart home integration. Includes free consultations and tailored system recommendations.

Residential AC Services

We deliver custom cooling solutions for Castle Hill homes, from compact split systems to whole-house ducted AC. Our residential services focus on quiet operation, energy efficiency and smart home integration. Includes free consultations and tailored system recommendations.

Commercial AC Services

Specialised HVAC solutions for Castle Hill businesses including offices, retail spaces and restaurants. We design systems that balance employee comfort with energy efficiency, offering after-hours servicing to minimise disruption. Includes maintenance contracts and air quality solutions.

All services performed by licensed technicians with genuine parts and transparent pricing. Serving Castle Hill and surrounding suburbs since 2003.

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+02 9157 5577

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Frequently Asked Questions (FAQs)

What areas of Castle Hill do you service?
We cover all Castle Hill suburbs including Baulkham Hills, Kellyville, Bella Vista, Glenhaven, and West Pennant Hills. Our technicians are local to the Hills District.
We offer same-day service for urgent repairs, with most Castle Hill customers attended to within 2-4 hours of their call. After-hours emergency service is available 24/7.
We install all major brands including Daikin, Mitsubishi Electric, Fujitsu, Panasonic, and ActronAir. We'll recommend the best brand for your specific needs.
We recommend annual professional maintenance - ideally before summer starts. Commercial systems or heavily used residential units may need servicing every 6 months.

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