Commercial Air Conditioning Repairs Sydney

Shops, offices and server rooms. We find the fault and get you trading again. Since 1991.

Commercial Air Conditioning Repairs Sydney

Jay's Air Conditioning monochrome grey icon showing the flame and tick brand symbol

Commercial Repairs

Aircon Down at Work?

We'll Get You Back Up and Running.

Commercial aircon down? Here's the short version. A service call to diagnose the fault is $250 plus GST, we quote the fix before we touch anything, and most common faults are sorted the same visit. Jay's Air has been doing commercial air conditioning repairs Sydney wide since 1991. Shopfronts, offices, restaurants and server rooms.

The usual suspects are the same ones we see every week. Filters and coils choked from long run hours. Refrigerant leaks. Failed capacitors and contactors. Cassettes dripping on desks because nobody's cleared the drain in years.

Downtime costs you money. Staff wilt, customers walk, stock and servers cook. So we don't muck around. You get our own techs, not subbies, fixed pricing quoted before the work starts, and lifetime workmanship warranty on repair parts. 4.8 stars from 280+ reviews.

We service every brand and every system type. Splits, cassettes, ducted, rooftop package units and VRV. Check our pricing guide or give us a bell on (02) 9820 4500.

0+

Years of Industry Experience

Technician in blue overalls using an electrical clamp meter to test an outdoor air conditioning unit's electrical panel

Licensed, Certified & Insured Technicians

Environmentally Responsible & ARCtick Certified

ARCtick Certified logo with blue and green tick mark on white background
Green leaves in foreground with glass office tower and sunlight behind - sustainability concept

100% Service Satisfaction Guarantee

Flexible & Affordable Financing Options

Wide Range of Systems & Leading Brands

Aerial overhead view of a cluster of large commercial HVAC rooftop condenser units with top-mounted fans

Why Sydney Commercial Systems Break

Commercial gear works harder than anything in a house. A shopfront split runs 12 hours a day, six or seven days a week. Office cassettes run all year. Server room units never switch off at all.

  • Filters and coils load up fast in shops and kitchens, and airflow dies with them
  • Long run hours wear out capacitors, contactors and fan motors early
  • Refrigerant leaks develop at flare joints and coils with constant vibration
  • Systems undersized after a fit-out run flat out and never catch up
  • No maintenance. Most commercial breakdowns we see were months in the making

Most of it is preventable. A regular service costs a lot less than a dead Saturday's trade.

Jay's Air Conditioning white icon logo showing the flame and tick brand symbol on a light grey background

Common Problems

The Faults We Fix

Week In, Week Out

Here's what commercial aircon repairs across Sydney actually look like for us, and what each fault means for your business.

Usually low gas from a leak, packed filters or a filthy condenser working too hard. We put gauges on, find the real cause and quote the fix before we start. More on our aircon not cooling page.

VRV systems shut themselves down to protect the compressor when something’s off. Communication faults, sensor faults and refrigerant trips are the common ones. Note the code before you reset it. Our error codes page explains the families.

A cassette dripping on desks or stock is nearly always a blocked condensate drain or a dead drain pump. A drain clear is $120 to $150. Sort it early, before the ceiling tiles stain. More on our leaking water page.

Commercial systems vibrate more and run longer, so flare joints and coils leak sooner. Topping up without fixing the leak just buys you weeks. We pressure test, repair the leak, then regas. R32 is $185 a kilo, R410a $225.

Contactors, capacitors and supply issues knock out bigger commercial units. Minor electrical fixes start around $150 fitted. If a breaker keeps tripping, stop resetting it and give us a call.

Server room units run around the clock, so they fail sooner and the cost of failure is uglier. If your gear is cooking, shed load where you can and call. Worth asking us about a maintenance plan for these rooms.

Kitchens are brutal on aircon. Grease loads up condensers and filters, and the system dies mid-service on the hottest day. A chemical coil clean is $200 to $300 and brings most struggling units back.

When to Switch It Off and Call

Some faults can't wait until close of trade:

  • Burning or electrical smells. Off at the breaker, straight away
  • Water dripping near powerpoints, switchboards or stock
  • Breakers tripping more than once. Stop resetting, something's wrong
  • Ice on the pipes or unit. Running it iced kills the compressor
  • Server room temps climbing. Shed load and call

If any of that's happening, give us a bell on (02) 9820 4500.

Row of large multi-head air conditioning outdoor condenser units installed on a concrete rooftop under blue sky
Air conditioning technician in hard hat crouching at a rooftop condenser unit with refrigerant gauges connected and a city skyline behind
Jay's Air Conditioning white icon logo showing the flame and tick brand symbol on a light grey background

DIAGNOSTIC PROCESS

How We Diagnose Commercial Faults

  • 00

    Get the Story

    What it's doing, when it started, what's changed. Run hours and history matter on commercial gear.

    00

    Electrical Checks

    Capacitors, contactors and supply, including three phase where fitted.

    00

    Refrigerant Pressures

    Gauges on. Pressures tell us straight away if it's a gas problem, whatever the refrigerant.

    00

    Airflow and Coils

    Filters, coils, fans and returns. Choked airflow mimics half the faults on this page.

    00

    Quote Before We Fix

    You get the fault and the price before we start. You decide. No surprises on the invoice.

Jay's Air Conditioning monochrome grey icon showing the flame and tick brand symbol

Real Jobs

Commercial Jobs Done

Around Sydney

Technician in hi-vis vest crouching on a commercial rooftop to service large HVAC pipework and cooling equipment
Modern office reception area with exposed ceiling pipes, glass partitions, indoor plants, and a green living wall
Open-plan office with workstations and monitors, exposed ceiling ducts and air conditioning vents overhead
Row of large commercial air conditioning condenser units installed along the exterior wall of a building
Aerial overhead view of a cluster of large commercial HVAC rooftop condenser units with top-mounted fans

Shopfront ducted blowing warm - Rockdale

Problem

14kW Daikin ducted over a retail shop, running all day but barely cooling the floor.

Diagnosis

Gauges showed it well down on gas. Found a weeping flare at the condenser, repaired it, pressure tested and regassed with R410a. Full cooling back before the weekend trade. $640.

Cassettes dripping on desks - Parramatta

Problem

Two office cassettes dripping onto workstations. Buckets on desks, staff not thrilled.

Diagnosis

Condensate drain blocked solid and the drain pump on one unit had died. Cleared the line, fitted a new pump, tested both units through a full cycle. $420 the lot.

Cafe split struggling - Leichhardt

Problem

7.1kW Panasonic in a busy cafe, weak cold air right when the lunch rush hit.

Diagnosis

Condenser coil was caked in kitchen grease and the filters were packed. Chemical cleaned the coil, washed the filters, full airflow and cooling back same visit. No parts needed. $300.

Server room unit cutting out - Kirrawee

Problem

5kW Mitsubishi in a small server room kept tripping out, gear running hot.

Diagnosis

Condenser was blocked with dust and the run capacitor was on the way out. Cleaned the coil, fitted a new capacitor, unit held temp through a full load test. $330.

Kitchen aircon dead mid-rush - Casula

Problem

Restaurant ducted unit went dead in the middle of Friday service. No fan, no cooling, packed dining room.

Diagnosis

Failed contactor on the outdoor unit. Replaced it, checked the supply and run current, cold air back within the hour. $320.

Jay's Air Conditioning monochrome grey icon showing the flame and tick brand symbol

Priorities

How We Prioritise Commercial Calls

  • Revenue on the Line

    Trading floor cooking, stock or servers at risk. These jobs jump the queue and we'll tell you straight when we can get there.

  • Staff Comfort

    Office warm but workable. We book the next available slot and quote the fix on the spot.

  • Scheduled and Planned

    Maintenance, quoted repairs and after-hours work, booked around your trading hours.

Licensed and Insured
For Commercial Work

Wind turbines in a field of yellow rapeseed flowers under a clear blue sky
ARCtick Certified logo with blue and green tick mark on white background

Commercial sites need the paperwork done right, and we get it. You get a licensed contractor, ARCtick certified refrigerant handling, and our own techs who have been doing this for decades. Compliance certificates and invoices that keep your centre management and strata happy.

NSW Contractor Licence 273312C

ARCtick Certified AU13058

Fully Insured

Family Run Since 1991

Our Own Techs, Not Subbies

12 Months Warranty on Parts

ARCTICK Certified for Your Peace of Mind

We are an ARCTICK accredited company which is vitally important in today's society, what this means is that not only are we allowed to handle refrigerant to gas up your system. It also means we take responsibility and care for the environment to ensure we do not pollute it with any greenhouse gases, but equally as important this responsibility will save you money in the long run too!!
Jay's Air Conditioning white icon logo showing the flame and tick brand symbol on a light grey background

Repair Costs

Commercial Repair

Cost Guide

Honest ballparks, not nasty surprises. Every job is quoted before we start. The service call covers a tech on site, a proper diagnosis and a straight answer. Bigger parts get quoted once we know exactly what's needed. Full details on our pricing page.

Service Call and Diagnosis

Tech on site, full diagnosis, quote for the fix. Additional units $110 each on the same visit.

$250 + GST

Minor Electrical Repairs

Capacitors, contactors, fuses and relays. The most common commercial fixes, usually done same visit.

$150 - $500 fitted

Refrigerant Leak and Regas

Pressure test, leak repair and regas. R32 $185/kg, R410a $225/kg. Quoted once we find the leak.

$300 - $900 typical

Fan Motors and Drain Pumps

Supplied and fitted, with 12 month warranty on the part, plus our lifetime workmanship guarantee.

$300 - $800 fitted

Boards, Compressors, VRV Parts

Major parts are priced and quoted after diagnosis, before you commit to anything.

Quoted after diagnosis

Technician in hi-vis vest inspecting an air conditioning outdoor unit on a commercial rooftop with solar panels

Why Quick Fixes Cost You More

We get asked to just regas it, just reset it, just get us through the weekend. We get why. But on commercial gear a band-aid usually means the same breakdown again in a few weeks, at a worse time, with a bigger bill.

A regas without fixing the leak leaks out again. A breaker reset on a fault trips again, and every trip stresses the compressor, which is the one part you really don't want to buy. An error code cleared without reading it first throws away the exact clue that saves diagnosis time.

So we fix causes, not symptoms. It's why our repairs come with 12 month warranty on parts, plus our lifetime workmanship guarantee. And if the system is limping along quietly chewing power, have a look at our high power bills page. A struggling system costs you money every day it runs.

Repair or Upgrade?

Under about 10 years old with a failed capacitor, fan motor or a gas leak? Repair it, no question. Past 12 to 15 years, running old R22, with a dead compressor or board? Replacement is usually the smarter spend, and newer inverter gear costs a lot less to run over a long trading week.

We'll give you the honest call either way, with numbers for both. If you're weighing it up, our sizing guide and pricing guide show what a new system actually involves.

Air conditioning technician with tablet inspecting rooftop condenser units, solar panels in background
Jay's Air Conditioning monochrome grey icon showing the flame and tick brand symbol

Repair Process

Our On-Site Repair Process

Step by Step

Technician holding refrigerant manifold gauges next to a row of outdoor air conditioning condenser units on a rooftop

Step 1

We confirm the fault with proper testing, not guesswork, and walk you through what we found.

Step 2

You get a fixed quote before any repair work starts. You say go, or you don't.

Step 3

We do the repair, test the system under load and make sure it holds temperature.

Step 4

You get the invoice, the compliance paperwork and 12 month warranty on the parts, plus our lifetime workmanship guarantee we fitted.

Jay's Air Conditioning monochrome grey icon showing the flame and tick brand symbol

Systems We Cover

We repair every type of commercial system, whatever brand is on the badge

Splits, cassettes, ducted, rooftop packages and VRV. If it cools a Sydney business, we work on it.

Row of large multi-head air conditioning outdoor condenser units installed on a concrete rooftop under blue sky

VRV / VRF Systems

Multi-head commercial systems. Error codes, boards and sensors sorted.
Row of large rooftop commercial cooling towers with access stairs on a building

Server Room Cooling

Around-the-clock units where downtime isn't an option. Maintenance plans available.
Air conditioning technician with tablet inspecting rooftop condenser units, solar panels in background

Work That Keeps Your Business Compliant

Refrigerant work is regulated for a reason. We're ARCtick certified (AU13058) for refrigerant handling, NSW licensed (273312C), and fully insured for commercial sites. You get proper compliance paperwork with every job, which matters when centre management or your landlord comes asking.

And because we're a family business with our own techs, the bloke who quoted your job is accountable for it. No subbies, no finger pointing.

Get Your Business Back to Cool

Aircon down is money walking out the door, so don't sit on it. Give us a bell on (02) 9820 4500, tell us what's happening and we'll tell you straight what we can do and when. Monday to Friday 7am to 5pm, Saturdays and after-hours work by arrangement, booked around your trading hours.

If it's a one-off fault, we'll fix it properly. If your gear is getting on, ask us about a commercial air conditioning service plan so the next breakdown doesn't pick the date for you. See our Sydney repairs hub for everything we fix.

Engineer in hi-vis vest using a phone with a digital air conditioning ductwork diagram composite in background
Jay's Air Conditioning white icon logo showing the flame and tick brand symbol on a light grey background

FAQs

Commercial Repairs - Common Questions

FAQs

A service call to diagnose the fault is $250 plus GST, then we quote the fix before we start. Minor electrical repairs run $150 to $500 fitted, refrigerant work $300 to $900 typically. Major parts are quoted after diagnosis.

Yes. VRV, cassettes, splits, ducted and rooftop package units, every major brand. Genuine parts where they are needed, with 12 month warranty on parts, plus our lifetime workmanship guarantee.

Often, yes. We work Monday to Friday 7am to 5pm with Saturdays and after-hours jobs by arrangement. Tell us your trading hours and we will work around them where we can.

Long run hours and no maintenance, nearly every time. Commercial units run two to three times the hours of a home system. A regular service catches small faults before they become a dead Saturday.

Under 10 years old, repair it. Past 12 to 15 years on old R22 gas with a major fault, replacement usually wins on running costs alone. We will quote both ways and give you the honest call.

Jay’s Air. Family run since 1991, our own techs not subbies, fixed pricing quoted before work starts. NSW licence 273312C, ARCtick AU13058, 4.8 stars from 280+ reviews. Call (02) 9820 4500.