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Describe the job once and we'll match it with up to 3 air con & HVAC technicians in Thornleigh.

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HVAC in Thornleigh NSW

15 air con & HVAC technicians1 based here · 14 serve the area★ 5.0 average from 2 reviews

About these results

Based here first, then air con & HVAC technicians by rating, then related trades.

A business is Featured only when it pays for the Featured plan. Example listings in the Featured panel are not real businesses: they show what a Featured listing looks like.

15 air con & HVAC technicians based in or serving Thornleigh; listings updated 7 Oct 2026.

  1. Ventilate Your Home

    Builders, HVAC

    6-8 Phyllis Ave, Thornleigh NSW 2120

    Directions View profile

    Ventilate Your Home is a Thornleigh, NSW business providing home ventilation services across Sydney Metro and the Central Coast.

    • Expert Home Ventilation services

    6-8 Phyllis AveThornleigh NSW 2120

    Closed · opens tomorrow 7:00 am

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  2. Based nearby, serving Thornleigh

    These businesses aren't based in Thornleigh but list it as a service area.

  3. Aircon 4 YOU

    HVAC

    Based in Waitara NSW · serves Thornleigh

    Directions View profile Serves this area

    Air conditioning business in Waitara, NSW for split and ducted system installation, repairs and maintenance.

    • Installation
    • Split air conditioning systems
    • Ducted air conditioning systems

    Based in Waitara NSWServes Thornleigh

    Closed · opens tomorrow 7:30 am

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  4. Ascot Air Services Pty Ltd

    HVAC

    Based in Hornsby NSW · serves Thornleigh

    Directions View profile Serves this area

    Air conditioning business in Hornsby, NSW, handling installation, repairs and servicing for homes and commercial sites.

    • Repair
    • Installation

    Based in Hornsby NSWServes Thornleigh

    Closed · opens tomorrow 8:00 am

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  6. Cold Rush Air Conditioning Pty Ltd

    HVAC

    Based in Dural NSW · serves Thornleigh

    Directions View profile Serves this area

    Cold Rush Air Conditioning Pty Ltd is an air conditioning business in Dural, NSW, serving homes and small businesses across Sydney.

    Based in Dural NSWServes Thornleigh

    Closed · opens tomorrow 9:00 am

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  7. Dream Air Conditioning

    HVAC

    Based in Kenthurst NSW · serves Thornleigh

    Directions View profile Licensed Serves this area Est. 2018

    Air conditioning business in Kenthurst, NSW servicing, maintaining and repairing split system, ducted and commercial air conditioners.

    • ​Air Conditioning Maintenance
    • Air Conditioning Repair
    • Ducted Air Conditioner

    Based in Kenthurst NSWServes Thornleigh

    Open now · 24 hours

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  8. Ducted Vacuum & Air Supplies

    HVAC

    Based in Annangrove NSW · serves Thornleigh

    Directions View profile Serves this area

    Air conditioning business in Annangrove, NSW, supplying and installing systems for homes and commercial premises.

    Based in Annangrove NSWServes Thornleigh

    Closed · opens tomorrow 7:00 am

    Get a quote

  11. IFCO Duct and Air Supplies

    HVAC

    Based in Hornsby NSW · serves Thornleigh

    Directions View profile Serves this area

    Air conditioning supplier in Hornsby, NSW, serving homes and businesses across the Hornsby and Wahroonga area.

    Based in Hornsby NSWServes Thornleigh

    Closed · opens tomorrow 7:00 am

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  14. N. B. Air Refrigeration Mechanical Plumbing

    HVAC

    Based in Cherrybrook NSW · serves Thornleigh

    Directions View profile Serves this area

    HVAC specialist in Cherrybrook, NSW for industrial and commercial refrigeration, air conditioning and mechanical plumbing.

    • Industrial/Commercial Refrigeration
    • Industrial/Commercial/Domestic Air-Condi…
    • Mechanical Plumbing

    Based in Cherrybrook NSWServes Thornleigh

    Closed · opens tomorrow 12:00 am

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  15. Orions Air Conditioning

    HVAC

    Based in Cherrybrook NSW · serves Thornleigh

    Directions View profile Serves this area

    Air conditioning specialist in Cherrybrook, NSW, servicing homes across the Hills and Hornsby districts.

    Based in Cherrybrook NSWServes Thornleigh

    Closed · opens tomorrow 7:00 am

    Get a quote

  16. Randall Electrics

    HVAC

    Based in Seven Hills NSW · serves Thornleigh

    5.0 (2 reviews) Directions View profile Licensed Serves this area Est. 2016

    Electrician in Seven Hills, NSW for residential, commercial and industrial electrical work, switchboard upgrades and hot water systems.

    • Residential Electricians
    • Hot Water System Installation
    • Switchboard Upgrades & Rewiring

    Based in Seven Hills NSWServes Thornleigh

    Open now · 24 hours

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No air con & HVAC technicians on this page match all of these filters. Untick one, or clear the filters to see all 15 on this page.

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Hiring air con & HVAC technicians in Thornleigh

Air conditioning installers and HVAC technicians for split systems, ducted heating and cooling, and servicing. Aussie Builders Directory lists 15 air con & HVAC technicians in Thornleigh NSW, with ratings, licences and the services each one offers.

What to check before you hire

Getting started

  1. Describe the job. What needs doing, where, and when you'd like it done.
  2. Shortlist two or three. Use the filters above to narrow this page by rating, licence and owner verification.
  3. Compare quotes. Or send one request and we'll match it with up to 3 air con & HVAC technicians.
  4. Agree in writing. Confirm the price, start date and payment schedule before work begins.

Frequently asked questions

How do I choose between air con & HVAC technicians in Thornleigh?

Compare two or three. Check each one's licence on your state regulator's public register, read recent reviews, look at photos of similar jobs, and ask for a written, itemised quote. A business that is owner verified on Aussie Builders Directory has confirmed it runs the listing.

How much does an HVAC contractor cost?

It depends on the size of the job, materials, access, and how soon you need it done. Most trades quote a fixed price for a defined job and an hourly rate for repairs and call-outs. Asking two or three local businesses for a written quote is the quickest way to see the going rate in Thornleigh.

Do air con & HVAC technicians need to be licensed?

Most residential trade work in Australia must be done by a licensed contractor, and building work above a set value needs a written contract and home warranty insurance. The rules differ by state, so check the licence number before work starts. Listings marked "Licensed" show a licence or certification on their profile.

What does "serves this area" mean?

Some businesses are based in a nearby suburb but travel to jobs here. On suburb pages we list businesses based in the suburb first, then the ones that say they serve it.

How do free quotes work?

Tell us about the job once. We match your request with up to 3 air con & HVAC technicians near you. A business on a paid plan here gets it with your name and contact details and can contact you directly. A business on the free plan sees the job and your suburb but not your details, so it can't contact you unless it upgrades. A business that hasn't claimed its listing sees your request only once it claims. After you send, we tell you which applies to each business. It's free and there's no obligation.