An air conditioning business in Australia typically sells for 3x to 5.5x normalised EBITDA, with goodwill ranging from $80,000 for a sole operator with a ute and a good reputation to $2 million or more for an established commercial HVAC contractor with a maintenance contract book, a licensed team, and systems that run without the owner in the truck. The industry is growing — Australia’s appetite for cooling is not going backwards — but that rising tide doesn’t float all boats equally. What you’re actually worth depends on what you’ve built, not what the market is doing.
EBITDA Multiples for Air Conditioning Businesses in Australia
The multiples below are based on current deal activity in the Australian HVAC market. They apply to normalised EBITDA — that is, profit after adding back owner’s salary above a market replacement rate, personal expenses run through the business, and genuine one-off costs that won’t recur under new ownership. Your accountant should run this normalisation before any valuation conversation starts, because buyers will do it anyway (see EBITDA add-backs when selling a business in Australia).
| Business Profile | EBITDA Multiple Range |
|---|---|
| Owner-operator, residential focus, owner-dependent | 2x – 3x |
| Small team (3–6 staff), mixed residential/commercial | 3x – 4x |
| Commercial focus, maintenance contracts, 6–15 staff | 3.5x – 5x |
| Specialist commercial/industrial, recurring revenue, manager-run | 4.5x – 5.5x |
Rule of thumb: a well-run air conditioning business generating $300K normalised EBITDA should be worth $900K to $1.5M in goodwill depending on recurring revenue and staff depth. Plant, vehicles, and equipment are valued and priced separately.
The spread between 2x and 5.5x is not random. It comes down to a handful of factors that are largely within your control — which is the good news for owners with a year or two of runway before they want to go to market.
What Buyers Are Actually Paying For
Buyers are not paying for your revenue. They’re paying for cash flow they can confidently underwrite once you walk out the door.
Maintenance contracts are the highest-value asset in any HVAC business. A commercial maintenance book — strata schemes, office towers, retail centres, cold storage facilities — generates revenue that renews every year without a quote. That predictability is worth a premium. A maintenance book generating $200K in annual recurring revenue can add $300K–$500K to your business value on top of the base EBITDA multiple. The catch: those agreements need to be in the company entity’s name, not a personal relationship between you and the facilities manager. If the call goes to your mobile and there’s no signed agreement, that “contract” is not a contract. It follows you, not the business.
Authorised dealer or installer status with a major manufacturer — Daikin, Mitsubishi Electric, Fujitsu, Samsung, Panasonic — adds value in a way that’s easy to overlook. These authorisations come with preferential pricing, lead referrals, training access, and manufacturer warranty work. A buyer acquiring your business gets all of that — unless the authorisation is registered to you personally rather than the company entity. I’ve seen deals complicated by exactly this: a Perth business with three manufacturer authorisations, all in the owner’s personal name, not the company’s. The rebates and referral flows had to be renegotiated from scratch post-sale. The buyer discounted the deal by $180,000 to account for the uncertainty. It was entirely avoidable.
ARCtick-licensed staff are a structural asset. The ARCtick licence — issued by the Australian Refrigeration Council under the Ozone Protection and Synthetic Greenhouse Gas legislation — is required for anyone handling refrigerants. In a market with a well-documented shortage of licensed HVAC technicians, a business with four ARCtick-licensed employees who are likely to stay post-sale is worth meaningfully more than one where the licence resides only with the owner. New buyers can’t easily replace these people; they can replace almost everything else.
Commercial and industrial revenue mix signals quality. Commercial HVAC work — VRF systems, chillers, building management system integration, data centre cooling — commands higher day rates, longer contracts, and more predictable scheduling than residential split systems. A business doing 70% commercial work carries a different risk profile to one doing 70% residential, and buyers price that difference.
The Revenue Mix Problem
Here’s something owners underestimate: installation revenue and maintenance revenue look the same on a P&L, but they’re valued differently by buyers.
Installation revenue — supply and install of new systems — is project-based. It comes in lumpy, depends on new construction activity and marketing spend, and tends to dry up when a busy estimator leaves or a builder relationship sours. It’s real cash flow, but it’s not predictable cash flow.
Maintenance revenue recurs annually. It doesn’t require re-winning the client each time. It provides a floor that a buyer can model with confidence.
A business doing $1.5M in annual revenue — $900K installation, $600K maintenance — will sell at a different multiple to a business doing $1.5M entirely in installation, even if the margins and EBITDA are identical. Buyers will pay more for the version that stays put.
The practical implication: if your maintenance book is thin, investing 12–18 months in building it out before a sale is likely the highest-ROI thing you can do. Every $50K in recurring annual maintenance revenue you add now is potentially worth $100K–$150K in business value when you sell.
What Reduces Your Sale Price
Owner dependency is the most common and most expensive problem. If the business’s key relationships — with builders, facilities managers, strata managers, commercial clients — sit with you personally, a buyer has a transition risk that gets priced in. The fix is long but straightforward: systematically transfer those relationships to a sales manager, service coordinator, or senior technician over 12–24 months before sale.
Residential concentration in the current market carries a margin risk buyers notice. Residential AC is commoditised in most Australian cities — Daikin split systems from competitors quoted through the same online marketplace platforms, price-sensitive buyers, and a Google Reviews economy where one bad callback can cost you three new installs. Commercial HVAC is different; it’s specification-driven, relationship-dependent, and stickier. If you’re 80% residential, you’ll be valued that way.
Client concentration gets discounted directly off the multiple. More than 20% of revenue from a single builder, developer, or facilities group is a material risk — what happens if that relationship doesn’t transfer? Buyers will quantify this and reduce their offer accordingly.
What Your Business Might Actually Be Worth
| Business Profile | Likely Goodwill Range |
|---|---|
| Sole operator, residential, no staff | $50K – $120K |
| 2–4 staff, residential/commercial mix, basic maintenance book | $150K – $400K |
| 5–10 staff, commercial contracts, good maintenance revenue | $400K – $900K |
| 10–20 staff, diversified commercial clients, manager-run | $800K – $2M |
| 20+ staff, strong maintenance book, manufacturer dealerships | $1.5M – $4M+ |
Vehicles, tools, test equipment, and stock are valued separately. A fleet of six vans in good condition adds $300K–$500K on top of goodwill. Equipment that’s five years old and partly depreciated is worth less than book value in the eyes of a buyer — they’ll negotiate.
Who Buys Air Conditioning Businesses?
Facilities management companies are the most active acquirers at the mid-market level. A national FM operator with HVAC subcontractor spend in the tens of millions looks at acquiring an established commercial HVAC business the same way a grocer looks at buying the bakery next door: it’s a margin and control play. These buyers move efficiently through due diligence because they understand the industry, and they typically want the owner to remain for 6–12 months to manage the relationship transition.
Trade services roll-up platforms, backed by private equity, have become a genuine buyer category in Australia over the past four years. These platforms acquire multiple HVAC, electrical, and plumbing businesses, consolidate back-office functions, and present a national or multi-state service proposition to large commercial clients. They target businesses doing $500K+ EBITDA with a management team in place and will structure deals with upfront payment plus earn-out components. The earn-out is the thing to understand before you sign. See what to know about selling to private equity in Australia.
Individual technicians stepping up are the natural buyer for smaller businesses — a licensed refrigeration mechanic with 15 years in the trade, an ARCtick licence, some savings, and a desire to own rather than work for. These buyers are hands-on, understand the work, and are often a better cultural fit for businesses doing under $1.5M in revenue than a corporate acquirer would be.
Tax on the Sale
The sale of an air conditioning business is generally subject to Capital Gains Tax. However, the small business CGT concessions — particularly the 15-year exemption and the 50% active asset reduction — can significantly reduce or eliminate the tax you pay. The structure of the deal matters: an asset sale and a share sale have different CGT implications for both you and the buyer. Get your accountant or tax adviser across this before you receive any offers, not after. The detail is in Tax on Selling a Business in Australia.
Getting Ready
The businesses that sell well are almost always the ones where the owner started preparing two years before going to market — not two months. The checklist is familiar across trade businesses (Selling a Trade Business in Australia):
- Get three years of clean, normalised financial statements from your accountant
- Document your maintenance contract book and verify everything is in the company entity’s name
- Confirm your manufacturer authorisations are entity-registered, not personal
- Build or promote a second layer of management so the business doesn’t stop when you take a holiday
- Formalise your key staff arrangements — written employment agreements, non-poach clauses
- Get your plant register and vehicle list current; replace anything a buyer would immediately write off
Use our free business valuation calculator for an initial estimate, or contact us directly for a confidential discussion about your air conditioning business and what a sale process might look like.
Related Reading
- EBITDA Multiples by Industry in Australia — where HVAC sits relative to other industries
- How Much Is My Electrical Business Worth? — a closely related trade with similar valuation dynamics
- How Much Is My Plumbing Business Worth? — another trade comparison
- Preparing Your Business for Sale — the 12-month action checklist