HVAC Contractor Pricing Guide: How to Price Air Conditioning and Ventilation Work in the UK (2026)

HVAC sits in a different league from standard heating work. The combination of F-Gas regulation, commercial clients and higher equipment costs means your pricing strategy needs to reflect the real risk and complexity involved. This guide breaks down how to price every major category of HVAC work — from a domestic wall-mounted split to a multi-head VRF system in a commercial office — so you can quote confidently and protect your margin.

HVAC vs Heating-Only Pricing: Understanding the Difference

Most heating engineers price gas work by the job or by the day. HVAC contractors need a different model. Air conditioning and mechanical ventilation work involves refrigerant handling, specialist tools (manifold gauges, vacuum pumps, leak detection), longer commissioning times and ongoing compliance requirements under F-Gas Regulation (EU) 517/2014 as retained in UK law. These factors push the baseline cost of any HVAC job well above an equivalent heating task — and your pricing needs to reflect that from the first line of your quote.

F-Gas Qualification: The Non-Negotiable Requirement

To handle refrigerants legally in the UK you must hold an F-Gas Category I qualification (City & Guilds 2079 or equivalent). Category I covers all fluorinated greenhouse gases without restriction. Without this, you cannot legally purchase refrigerants, service systems or commission new installations — and any contract that requires proof of certification will immediately disqualify you. Factor your F-Gas cert renewal (typically every five years), your gas cylinder licence costs and your refrigerant log-keeping into your overhead calculation before you set a single labour rate.

The UK Commercial HVAC Market

The three strongest commercial sectors for HVAC contractors are offices, retail and hospitality. Offices want split or cassette systems with quiet operation and zone control. Retail units need ceiling cassettes or concealed ducted systems that don't interfere with the fit-out. Hospitality — hotels, restaurants, function venues — demands near-silent operation and often requires bespoke zoning. Each sector has different decision-makers: facilities managers for offices, retail head offices for chains, and the owner-operator for independent hospitality. Understanding who signs off the purchase order shapes your quote presentation as much as the numbers themselves.

Split System Pricing (Wall-Mounted)

Wall-mounted split systems are the bread-and-butter domestic HVAC job. For a 3.5kW unit in a domestic or small commercial setting, expect a fully installed price of £1,200–£1,800 including the indoor unit, outdoor unit, refrigerant pipework (up to 3 metres), electrical connection to a fused spur, drainage and commissioning. A 5kW unit runs £1,500–£2,200 installed. At 7kW — typically the largest “domestic-style” unit before you move into cassette territory — the installed price is £1,800–£2,600.

These prices assume a straightforward installation with the outdoor unit on a ground bracket or wall bracket within a short pipe run. Add £150–£300 for extended pipe runs (over 5 metres), £80–£150 for through-wall pipe containment in a finished commercial space, and £200–£400 for any electrical distribution board work. Always quote pipework separately beyond a standard allowance — unexpected pipe runs are one of the most common sources of margin erosion on split system jobs.

Ceiling Cassette (Commercial) Pricing

Ceiling cassette units are the standard solution for open-plan offices, reception areas and retail floors. A single cassette unit (typically 3.5–7kW) installed in a suspended ceiling runs £2,500–£4,000 per unit including the indoor cassette, outdoor unit, refrigerant pipework, condensate pump (if gravity drainage is not possible), ceiling tile cutting and commissioning. The spread between £2,500 and £4,000 reflects access difficulty, ceiling height, pipe run length and brand — Daikin, Mitsubishi Electric and Fujitsu command a premium over budget brands, but their reliability record makes them easier to sell to commercial clients who will hold you responsible for any breakdowns.

Multi-Split System Pricing (2–5 Rooms)

Multi-split systems connect multiple indoor units to a single outdoor unit, making them popular for houses with multiple rooms or small commercial suites where running multiple outdoor units is not practical. Pricing scales with the number of heads: a 2-head system typically runs £3,500–£5,500 installed; a 3-head system £4,500–£7,000; a 4-head system £5,500–£9,000; a 5-head system £6,500–£11,000. The wide ranges reflect the difference between a small domestic installation with short pipe runs and a commercial suite installation with long, concealed pipe routes and multiple access complications.

VRF/VRV Commercial Pricing (Per kW Capacity)

Variable Refrigerant Flow (VRF) or Variable Refrigerant Volume (VRV — Daikin's trademark) systems are the solution for larger commercial buildings requiring simultaneous heating and cooling in different zones. Pricing is typically calculated per kW of installed capacity, with the rule of thumb being £400–£700 per kW for a complete supply-and-install including all indoor units, the outdoor modular unit, refrigerant pipework, controls and commissioning. A 40kW system for a medium-sized office floor plate therefore runs £16,000–£28,000 installed. Above this scale, detailed design by a mechanical engineer and formal tender process become standard.

Ventilation: MVHR Unit Pricing and Commissioning

Mechanical Ventilation with Heat Recovery (MVHR) is increasingly specified in new-build and retrofit projects under Part F of the Building Regulations. A domestic MVHR unit (covering a 3–4 bedroom house) costs £1,500–£3,500 for the unit alone, with installation adding £1,500–£3,000 depending on ductwork complexity. Total installed cost ranges from £3,000–£6,500 for a standard domestic installation. Commissioning and airflow balancing — required to meet Building Regulations — adds £300–£500 and must be documented. Commercial MVHR and centralised AHU installations are priced on specification, with ductwork runs, fire dampers and acoustic lining adding significantly to the installed cost.

Air Handling Unit (AHU) Servicing Day Rate

Commercial AHU servicing is typically priced at a day rate of £350–£600 per engineer per day, depending on your location and the complexity of the unit. A standard AHU service includes filter replacement, belt inspection and tension, coil cleaning (or quoting for coil clean if heavily fouled), drain pan cleaning, fan bearing inspection, controls check and service report. Most commercial sites will require two visits per year under a PPM contract. If you are quoting AHU servicing as a one-off rather than a contract, add a 20–30% premium to reflect the absence of guaranteed future work.

Planned Preventive Maintenance (PPM) Contract Pricing

PPM contracts are the most reliable revenue stream in commercial HVAC. A well-structured PPM contract covering two visits per year, all labour and minor consumables (filters, belts, gaskets) but excluding major parts, typically runs £180–£350 per indoor unit per year for split and cassette systems. A ten-head commercial site would therefore generate £1,800–£3,500 in annual PPM revenue. Price PPM contracts as a fixed annual fee, invoiced quarterly in advance — this creates predictable cash flow and reduces the client's annual budget uncertainty, making the contract easier to sell and retain.

For larger sites with AHUs, BMS integration or complex refrigeration systems, PPM contracts are priced on site survey and specification. Build in a contingency for site-specific access issues, contractor inductions and permit-to-work requirements that add time to every commercial visit.

Commercial vs Domestic Margin Differences

Commercial HVAC jobs carry higher margins than domestic for three reasons: the purchase decision is made on value and reliability rather than price alone, larger jobs have more room to absorb fixed costs, and ongoing PPM contracts create a client relationship that locks out competitors. Target 40–55% gross margin on commercial equipment (unit cost + accessories) and 60–70% on labour. Domestic split system work tends to run at 35–45% gross margin due to more competitive pricing pressure and price-comparison behaviour from homeowners.

Marketing HVAC Services

Google Ads targeting “air conditioning installation near me” and “AC unit installation [city]” drives domestic and small commercial enquiries effectively. Expect cost-per-click of £2–£6 for HVAC terms in major cities. For commercial FM (facilities management) clients, LinkedIn is a more effective channel — a consistent presence posting project photos and case studies, combined with direct connection requests to facilities managers and building managers in your target area, generates the kind of referral and direct approach that Google Ads cannot replicate.

Using Trade2Base for HVAC Work

Trade2Base lets you store F-Gas certificates directly against each engineer's profile, so you can share certification proof with commercial clients in seconds. PPM contract jobs can be scheduled as recurring work — the system automatically creates the next visit when the current one is completed, so nothing falls through the gaps. Campaign attribution shows you exactly which Google Ads campaign or LinkedIn activity generated each commercial enquiry, letting you invest your marketing budget where it actually produces booked jobs rather than guessing.