Air Conditioning Supply and Fit Guide
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23/07/25, 14:52
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Air Conditioning Supply & Fit Guide
Scope of Works
Conduct pre-site survey: measure rooms, check fuse-board capacity, agree outdoor-unit location.
Isolate electrics; core-drill wall for pipework, fit mounting brackets and vibration pads.
Hoist and secure outdoor condenser; install indoor air-handler(s) and route insulated copper lines, drain and control cable through trunking.
Pull vacuum, pressure-test with nitrogen, release refrigerant and commission to manufacturer specs.
Fit wired or Wi-Fi controller, set temperature limits and demonstrate operation.
Register warranty, issue F-Gas certificate, tidy site and remove packaging/old equipment.
Typical Cost (inc. VAT)
Charge type | Low £ | High £ | Notes |
Call-out / minimum | 60 | 120 | First 60 min & travel |
Labour per hour | 50 | 80 | F-Gas engineer rate Salary.comJooble |
Materials (unit, pipe, trunking) | 1 200 | 4 000 | Single-split to small multi-split micro-climate.co.ukWarmzilla |
Disposal (old AC / packaging) | 50 | 150 | WEEE-compliant removal |
Extras (scaffolding, long pipe run, crane) | 0 | 600 | Site specific |
TOTAL (most jobs come in here) | 1 800 | 4 500 | Single split supply + fit Warmzilla |
Time on Site
4 – 8 hours for a single wall-mounted split on a clear external wall.Add time if multiple indoor heads, condenser sited above first-floor level (requires scaffold), consumer-unit upgrade, or listed-building planning consent delays. njlees.co.uk
Questions to Ask Your Tradie
Are you F-Gas registered and will you provide the certificate on completion?
What SEER/SCOP efficiency and noise level does the quoted unit achieve?
Is electrical isolation, RCD spur and surge protection included?
How long is the parts and labour warranty, and who handles manufacturer claims?
Will annual servicing be required to keep the warranty valid—and at what cost?
Do I need planning permission for the outdoor unit in my area?
Is condensate drainage pumped or gravity—where will the pipe terminate?
How to Avoid Surprises
Access & Parking: Reserve a space for the van and, if needed, crane or hoist.
Working at Height: Flag second-storey or roof siting early—scaffold or cherry-picker may be required.
Power Supply: Confirm spare way in consumer unit for a 16 A/20 A MCB.
Noise & Vibration: Agree condenser position respecting neighbour distances.
Condensate Route: Ensure gravity fall to an outside drain or budget for a pump.
Roof / Wall Integrity: Check for asbestos or fragile render before drilling.
After-care: Keep warranty card, maintenance schedule and spare filters on hand.
All prices are indicative mainland-UK ranges for 2025 and include VAT.
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