Use a fixed survey checklist, record notes and photos against it, and have AI turn them into a structured survey record that flags anything missing. Then draft unit options and install scope lines from that record and your price book. The qualified engineer chooses the capacity and owns refrigerant, pipework and electrical decisions; AI never does.
Many air conditioning quote disputes start with a survey detail that never reached the quote: the nine-metre pipe run that became five, the condensate pump nobody priced, the spare way at the distribution board nobody checked. AI helps because it reads notes without getting tired and lists what is missing. It is dangerous when it fills a gap with a plausible number, which is the habit the prompts below are designed to stop.
Take an illustrative job: a furniture maker's showroom (10 m by 7 m, with a south-facing glass front) and a back office (4 m by 3 m), both to be cooled. The engineer's load calculation gives 7.1 kW for the showroom and 2.5 kW for the office. Sizing is the engineer's work, and whether AI can do a load calculation deserves its own answer; here the capacities arrive as inputs.
Before you start, gather four things: your survey checklist, your price book with unit costs and labour rates, your standard exclusions, and the engineer's name and certification details for the quote template. The last item stays outside the AI's reach for the whole process, for reasons the engineer section explains.
What the survey must capture before a quote is possible
A quote is only as clear as the survey behind it. The table is the checklist your surveyor works through on site. The right-hand column explains why each item matters, which is also the reason to insist on it when time is short.
| Area | What to capture | What it changes in the quote |
|---|---|---|
| Room and use | Length, width and ceiling height; use; number of people; heat-producing equipment; opening hours | Inputs to the engineer's load calculation, which sets capacity |
| Glazing and sun | Window area and direction; blinds or shading; top-floor or roof exposure | Often the largest heat gain, so it shifts capacity and unit choice |
| Indoor unit position | Wall or ceiling type; ceiling void depth; planned mounting height; clear space around the unit; position against desks and doors | Decides unit type, fixing method and any extra work |
| Outdoor unit position | Wall, ground or roof; clearances; noise-sensitive neighbours; service access; who owns or permits the space | Affects noise, pipe length, mounting and permissions |
| Pipe route | Measured length of each run; height difference; number of bends; walls to pass through and their thickness; concealed or visible | Drives pipework cost, extra refrigerant, labour, and the engineer's check against the manufacturer's limits |
| Condensate | Whether a gravity fall to a drain is possible; discharge point; need for a pump | A pump changes price, noise and maintenance |
| Electrical | Where the distribution board is; spare capacity; route to the outdoor unit; isolator position | Decides whether new circuits or upgrades are needed, which a qualified electrician confirms |
| Access and logistics | Ladder, scaffold or lift needs; gate widths; parking; working hours; hazards | Sets access equipment, time and any premium |
| Existing equipment | Units to remove, and the refrigerant they hold if known | Removal and recovery are specialist tasks for the qualified engineer |
| Customer needs | Noise tolerance, appearance, control preferences, timing, budget band | Shapes the options you offer |
| Photos | Each wall and the ceiling, the outside wall, the distribution board, anything on the pipe route | Evidence for the quote and for any later dispute |
Where the survey form lives and how notes get captured
A form in your job app, a shared document or a printed sheet all work, as long as every survey answers the same questions in the same order. Field-service apps put checklists on different plans. ServiceM8's pricing page (the dollar version) lists checklists on every plan and forms and certificates from its Growing plan at $79 a month. Jobber's pricing page lists checklists from its Connect plan, at $139 a month for one user on monthly billing, and optional line items on quotes from Grow. Both pages were read in October 2026 and plan contents change, so check the live page. Some apps also add their own AI drafting; ServiceM8, for example, lists AI Quote and Invoice on every plan. Test any such feature as you would a general assistant: run three past surveys through it and compare the result with what your engineer wrote.
Capture the numbers with a tape or laser measure, and never ask AI to estimate a length from a photo. Photograph against the checklist, and dictate a two-minute voice note in the van while the details are fresh. The routine for turning on-site voice notes into job sheets covers the dictation side.
Step 1: messy notes into a structured survey record
Here are the survey notes for the job, as dictated. They are typical: partial, abbreviated and slightly contradictory.
showroom 10 x 7, 3.1 to the suspended ceiling, big south window across the front about 6m wide full height, no blinds. two banks of spots, 4 staff plus customers. back office 4 x 3, 2.6 high, east window. showroom back wall is brick, other side is the yard, outdoor unit could go on a bracket about 2.5m up. pipe route from showroom about 9m maybe, along the wall behind. office wall unit over the door, route to yard through the same brick wall 4m ish, lots of bends. office has no drain nearby but the yard is lower so gravity should be ok? ceiling grid tiles, void about 400 so cassette might fit. electrics, sparky to look at the board. ladder access fine, yard gate narrow, 900. client wants quiet, neat, no pipes on show. landlord permission? photos 331 to 352.The prompt turns those notes into a record without letting the assistant fill gaps. Its two key rules are to keep uncertainty words such as "maybe" and to write MISSING instead of guessing.
You are helping an air conditioning installer turn site survey notes into a survey record.
Use ONLY the NOTES below.
For each room, fill: dimensions; ceiling height; glazing and shading; heat sources; indoor unit candidates, position and mounting height; outdoor unit position; pipe route length and bends; wall type and thickness; condensate route; electrical; access; customer requirements; photos.
Rules:
- Copy numbers exactly as written. If a note says "about", "maybe", "ish" or has a question mark, keep that word and mark the field UNCONFIRMED.
- If a field is not in the notes, write MISSING. Never estimate or fill in typical values.
- Do not choose a capacity, unit model, refrigerant or pipe size.
- After the record, list every MISSING and UNCONFIRMED field in order of effect on the quote.
- List any contradictions between notes.
NOTES:
[paste the notes]| Field | Showroom | Office |
|---|---|---|
| Dimensions and height | 10 m x 7 m; 3.1 m to the suspended ceiling | 4 m x 3 m; 2.6 m |
| Glazing | South-facing, about 6 m wide, full height; no blinds | East window; size MISSING |
| Heat sources | Two banks of spotlights; 4 staff plus customers | MISSING |
| Indoor unit | Cassette candidate in the suspended grid ceiling at 3.1 m; void about 400 mm (UNCONFIRMED) | Wall unit above the door; mounting height MISSING |
| Outdoor unit | Yard side of the brick back wall, on a bracket about 2.5 m up; clearances MISSING | Yard, through the same brick wall |
| Pipe route | About 9 m, "maybe" (UNCONFIRMED); bends MISSING | About 4 m, "ish" (UNCONFIRMED); "lots of bends", count MISSING |
| Wall | Brick; thickness MISSING | Same wall; thickness MISSING |
| Condensate | MISSING (pump or gravity not decided) | Gravity "should be ok" (UNCONFIRMED) |
| Electrical | MISSING: electrician to check the board | MISSING |
| Access | Ladder access fine; yard gate 900 mm | Same |
| Customer | Quiet, neat, no pipes on show; landlord permission UNCONFIRMED | Same |
| Photos | 331 to 352 | Same |
Below the record, the assistant lists eleven MISSING fields and five UNCONFIRMED ones, with the pipe route lengths and the electrical supply at the top because they move the price most. It also flags one contradiction: the office note says "no drain nearby" and "gravity should be ok" in the same breath. That is the output you want. It sends the surveyor back with a short list of questions, rather than letting a guess reach a quote.
Reading the AI's record against the notes
Read the record against the notes before using it, because assistants can fail in predictable ways even with good rules. These four are worth checking every time:
- "Maybe" disappears. A record that says "pipe route 9 m" has silently turned a guess into a measurement. Check that every uncertainty word survived.
- Contradictions are resolved quietly. If the record says "condensate: gravity" with no flag, the assistant has picked a side in the drain note above. Contradictions belong on the list.
- Typical values arrive uninvited. A draft may add "R32 refrigerant" or "3.5 kW" for the office, since typical values are easy to produce. Both are decisions for the engineer, and neither was in the notes.
- Customer wishes collide with the install. The customer wants "no pipes on show", yet the office unit sits above a door with the pipes running outside. The record should flag this as a question about concealment or boxing in, because it affects labour and materials.
What stays with the qualified engineer
The NOTE for this job is blunt: refrigerant regulations stay with the qualified engineer. In practice that covers more than the refrigerant itself. The engineer owns the capacity from the load calculation and the choice of units and their compatibility. The engineer checks the pipework design against the manufacturer's limits on length and height difference, and decides the refrigerant charge, including any extra for a long run. The engineer also does the handling, leak testing, evacuation, charging, commissioning and the records, and holds whatever certification applies where you work. Electrical supply work belongs to someone qualified to do it, usually an electrician.
One survey detail has real consequences. Many current units use R32, which LG's R32 safety guide describes as a mildly flammable (A2L) refrigerant. The guide says the maximum charge and minimum floor area for such systems are set by an international product-safety standard, that the indoor unit's mounting height also counts in lower rooms, and that local codes should guide the final design. Treat that as the manufacturer's guidance for the engineer, not as wording for the quote. For the survey it simply means recording each room's floor area, ceiling height and planned mounting height accurately, so the engineer can check them against the installation manual for the chosen unit and the rules that apply to the job. The assistant's only part is to make sure those fields are not MISSING.
Keep the compliance wording out of the AI's reach. The quote template carries a fixed block that the engineer writes: "Refrigerant work will be carried out by [engineer's name], who holds [certificate type and number]. Capacity, refrigerant charge and pipework limits are confirmed by [engineer's name] before installation." The prompts tell the assistant not to touch it. If your tool lets you lock a text block, lock this one.
Step 2: three unit options in plain English
With the engineer's capacities as inputs, the assistant can describe the options a customer can choose between. The engineer supplies the technical facts for each; the AI turns them into plain sentences. For the showroom and office, three options come out.
| Option | What the customer gets | What it changes | Engineer confirms |
|---|---|---|---|
| A: two separate systems | Ceiling cassette in the showroom, wall unit in the office, each with its own outdoor unit | Neat showroom ceiling; independent control; one system can be serviced without stopping the other; two outdoor units on the yard wall | Capacities, void depth, condensate route |
| B: one multi-split | The same two indoor units on a single outdoor unit | One outdoor unit and one electrical supply; the rooms share a system, so a fault or service visit can affect both | Outdoor unit's capacity range, combined pipe length and height limits |
| C: wall units only | A wall-mounted unit in each room | Lower price direction and simpler install; a visible unit on the showroom wall; one unit's airflow has to reach across 10 m | Whether one showroom unit can serve the space |
When the assistant writes the customer-facing description, give it the same discipline as the survey record: use only the engineer's facts, and avoid performance promises. A draft for Option A can come back with two sentences you must remove: "will keep your showroom at a perfect 22 degrees all summer" and "cuts running costs by up to 30%". Neither is something the survey or the manufacturer's data supports. Delete comfort guarantees, savings claims and noise adjectives unless the engineer supplies a figure from the data sheet. The worked good-better-best HVAC quote shows the same options idea for replacement work.
Step 3: install scope lines from the record and your price book
Scope lines come from two sources only: the survey record and your price book. Give the assistant the price book lines you want to use, and instruct it to write [CONFIRM] wherever a quantity is not firm.
Draft the installation scope lines for this quote from the SURVEY RECORD and the PRICE BOOK LINES below. Use ONLY these.
- One line per price book item used. Keep item names and prices exactly as given.
- Quantities come from the record. If a quantity is UNCONFIRMED or MISSING, write [CONFIRM: what is needed] instead of a number.
- Do not add work that is not in the price book.
- For pipework, state the included length from the price book and the price per extra metre.
- Do not write anything about refrigerant type, charge, certification or regulations. The engineer's statement will be inserted separately.
- After the lines, write ASSUMPTIONS and EXCLUSIONS using only wording from the STANDARD EXCLUSIONS list.
ENGINEER'S CAPACITIES: showroom [kW]; office [kW]
SURVEY RECORD:
[paste]
PRICE BOOK LINES:
[paste]
STANDARD EXCLUSIONS:
[paste]For Option A the draft scope reads like this, with the flags left in:
1. Supply and install one 7.1 kW ceiling cassette (indoor unit, panel and wired controller) in the showroom ceiling at the position marked on the survey sketch. [CONFIRM: void depth against the unit height.] 2. Supply and install the matching outdoor unit on a wall bracket on the yard wall, about 2.5 m up. [CONFIRM: clearances.] 3. Supply and install refrigerant pipework for the showroom system: up to 10 m included [CONFIRM: measured length, noted as about 9 m]. Extra length is $46 per metre. 4. Supply and install one 2.5 kW wall-mounted unit with controller above the office door, with its outdoor unit on the yard wall and up to 6 m of pipework included [CONFIRM: bends]. 5. Condensate: showroom cassette to [CONFIRM: discharge point and whether the built-in pump is used]; office by gravity [CONFIRM: fall to the drain]. A condensate pump, if needed, is $214 extra. 6. Electrical: dedicated supply and isolator for each outdoor unit, installed by a qualified electrician from the existing distribution board, subject to the electrician's check of spare capacity. 7. Core drilling of two holes through the brick wall and making good to the external finish. 8. Testing, commissioning and handover, including a controller demonstration.
Assumptions. Spare capacity is available at the board. The yard wall can carry both outdoor units. Landlord consent is in place before work starts. Access is through the 900 mm gate.
Exclusions. Internal decoration and ceiling repairs; removal of existing equipment; extra pipework beyond the lengths stated; any upgrade of the electrical supply; hidden conditions.
Each [CONFIRM] ties to a survey gap from Step 1, which is the point: the quote cannot go out with the gaps hidden. The $46 and $214 figures come from your price book, worked out in the next section; the assistant does not calculate them.
Pricing the job: the survey figures that move the number
Do the arithmetic in a spreadsheet, not in the chat window; assistants can slip on sums, as the guide to checking AI maths in quotes explains. The trade prices below are examples only; use your own price book.
| Cost line | Working | Cost |
|---|---|---|
| Showroom 7.1 kW cassette system | Indoor unit, panel, outdoor unit, controller | $3,800 |
| Office 2.5 kW wall system | Indoor unit, outdoor unit, controller | $780 |
| Showroom pipework | 10 m at $19 a metre | $190 |
| Office pipework | 6 m at $12 a metre | $72 |
| Wall brackets | 2 at $60 | $120 |
| Condensate pipe and fittings | Both rooms | $85 |
| Cables, trunking, fixings, consumables | Allowance | $260 |
| Electrical supplies and isolators | Qualified electrician, subcontract | $640 |
| Core drilling and making good | 2 holes | $140 |
| Access equipment | Tower hire | $180 |
| Materials and subcontract total | $6,267 | |
| Labour | 28 hours at $55 (10 showroom install, 6 showroom pipework and outdoor unit, 8 office, 4 commissioning and handover) | $1,540 |
| Direct cost | $7,807 | |
| Price at a 30% gross margin | $7,807 divided by 0.70, rounded | $11,150 |
The per-metre line follows from the same sheet. A metre of showroom pipe costs $19, plus 10% waste, plus about 12 minutes of labour at $55: roughly $31.90, or $46 at the same margin. The condensate pump costs $95 plus an hour of labour, so $150, or $214 at the margin. The next table shows what each survey uncertainty could do to the job and how the quote handles it.
| Survey uncertainty | If it goes the wrong way | Exposure if unpriced | How the quote handles it |
|---|---|---|---|
| Showroom pipe run "about 9 m" | It is really 14 m | About $128 (4 m beyond the 10 m allowed, plus any extra refrigerant the engineer calls for) | Extra length at $46 per metre |
| Office condensate by gravity, "should be ok" | A pump is needed | $150 | Pump priced as an option at $214 |
| Spare capacity at the board | The board needs work | Set by the electrician's quote | Stated as a condition; extra work quoted separately |
| Landlord consent | Refused or delayed | Cost of a wasted booking | Customer responsibility; no work scheduled until confirmed |
These lines show how a "maybe" in the notes becomes a price rule. If you want to check that a margin like this matches your real jobs, a worked check on past jobs is a good next read.
The gate before a quote goes out
Set a rule that the quote does not leave the building until these are filled, or are stated in the quote as a condition or an option: room dimensions and height, and each indoor unit's mounting height; glazing and heat sources for the engineer; the outdoor unit position; measured pipe route lengths; the condensate route; the electrical route and spare capacity, confirmed by the electrician or written as a condition; customer permissions such as landlord consent; and the photo set. If any of them is still MISSING, the quote says so in plain words and states what it assumes. The engineer then reads the record, the options and the scope lines in one sitting and signs the quote.
Sending the quote and following up
The quote goes out with the options table and the scope lines, in that order, so the customer sees the choice before the detail. Keep the cover message short and factual. Then the follow-up is a routine of its own; the HVAC follow-up sequence covers the timings and wording, and the same rule applies: the assistant drafts, you send.
Survey-to-quote minutes, and the variations worth counting
Time your current routine on one real job before you change it, and put your own figures in place of these. Writing up the survey from notes takes 40 minutes by hand and 25 with the record (15 for the assistant run and 10 to check it against the notes). Options and scope lines drop from 60 minutes to 25. Pricing and assembling the quote stays at 30 minutes either way, because the spreadsheet does the sums. The engineer's review, informal and untimed before, becomes a fixed 15 minutes. That comes to about 130 minutes against 95, a saving of roughly 35 minutes a job.
The more useful change is the last step: the engineer's review is now a fixed part of every quote. Track four numbers over your next ten surveys. First, how many surveys had a MISSING item that was chased before the quote went out. Second, how many jobs needed a variation because of something the survey should have caught. Third, how often a surveyor had to go back to site. Fourth, the share of quotes accepted. If variations stay high, look at which survey field was weakest and tighten that line of the checklist, rather than blaming the assistant.
Questions about air conditioning surveys and quotes
Can AI work out what size of air conditioner a room needs?
No. Capacity comes from the engineer's load calculation, which uses room size, glazing, orientation, occupancy and equipment heat. An assistant can list the survey inputs the calculation needs and spot the ones you forgot to record. Floor-area rules of thumb ignore glazing and heat sources, so do not let a chatbot's quick estimate reach a quote.
Can AI estimate pipe runs and distances from photos?
Not reliably. A photo has no dependable scale, and a pipe route has bends, wall thicknesses and height changes that a picture hides. Measure with a tape or laser measure, record each length, and let the assistant total and format the numbers you recorded. Photos are evidence of the route, not a source of measurements.
Should the quote say which refrigerant the system uses?
Only if the engineer supplies it from the manufacturer's data. The quote should also state who carries out the refrigerant work and the certification they hold, using wording the engineer writes. Keep that statement outside what the AI can edit, because a plausible but wrong refrigerant or certification claim is worse than none.
How soon after the survey should the quote go out?
Ideally within a working day, while the survey is fresh, but let the checklist gate decide rather than the clock. If a key item is missing, such as the pipe route length or the electrical supply, send the quote with that item stated as a condition or ask the customer for it. A fast quote with a wrong assumption costs more than a slower one.
Further reads
- Heat Pump Installer Software: Surveys, Heat Loss and Quotes, AI Compared — Software that holds surveys, heat loss and quotes, AI compared.
- AI Estimating Software for HVAC: Replacement Quotes and Duct Takeoffs — Where AI estimating tools measure well and where they miss.
- CCTV Installation Quote Template: A Worked AI-Drafted Walk-Round Quote — One six-camera site, from messy walk-round notes to a checked quote: the prompt, the faults in a first draft, storage maths, exclusions and follow-up.
- AI Tools and AI Development: The Complete 2026 Guide — the AI hub, including every tutorial in the AI-for-business series.
Sources: ServiceM8 pricing page (dollar version), Jobber pricing page and LG's R32 safety requirements guide (all read October 2026).