Quoting a Multi-Head Ductless Mini-Split Install Room by Room Without Missing Line Items
A 4-zone ductless install looks simple until you're pricing it: one outdoor condenser, four indoor heads, four line sets at four different lengths, and a pile of small parts that quietly eat your margin if you forget them. R-Pro pairs a field app that captures the real site conditions room by room with an office ERP that turns those notes into a clean, itemized quote — so the head count, the line-set footage, and every disconnect and pad get on the estimate before you send it.
On site: walk the job room by room before you quote
- Photograph each indoor head location and measure line-set run separately — a bedroom on the same wall as the condenser is 12 ft, the far upstairs zone is 50+ ft, and quoting them at one average length costs you on either the copper or the labor.
- Scan the outdoor unit and any existing equipment nameplates so the model, BTU rating, and MCA/breaker size auto-fill instead of getting hand-copied wrong into the estimate.
- Drop a voice memo at each zone — 'master needs a condensate pump, no gravity drain' or 'lineset chase through finished ceiling' — so the conditions that drive labor hours aren't lost between the truck and the office.
- Log the whole survey under the customer's record, fully offline, so a basement mechanical room or a new-construction site with no signal doesn't stop you from capturing it.
- Capture mounting reality per head: ceiling cassette vs. wall mount, disconnect needed at the condenser, line-set covers on exterior runs, electrical whip and dedicated circuit count.
In the office: turn the survey into an itemized quote that holds up
- Build the estimate line by line — condenser, each indoor head, each line set at its measured length, refrigerant top-off, pads or wall brackets, disconnects, condensate pumps, line-set cover, and labor — so nothing gets buried in a single lump 'system' price.
- Quote each zone as its own group so the homeowner can see room-by-room cost and you can drop or add a head without rebuilding the whole estimate.
- Apply your own country's tax — set the name and rate yourself (VAT, GST, or sales tax) — and the invoice and tax invoice come out correct for where you actually work.
- Pull parts straight from inventory and suppliers so the line-set sizes, pump models, and breaker quantities on the quote match what you can actually source and what they cost you.
- Convert the approved estimate to an invoice and a tax invoice without re-entering a single line, and the sale lands in your accounting as revenue automatically.
The connection: site notes flow straight into the books
- The room-by-room survey, photos, and voice memos captured on site attach to that customer, so the person writing the quote in the office is working from the real measured conditions — not a memory of the walkthrough.
- Line-set lengths and head count measured in the field carry into the estimate, so the most-missed items on a multi-zone job are already on the sheet before you price labor.
- When the install wraps, you issue the receipt on site and the same job's revenue, parts purchases, and expenses post to accounting — no double entry, no end-of-month reconstruction.
- Net profit on the job reflects the actual purchase orders for the condenser and heads against what you billed, so you find out whether a 4-head quote was priced right while you can still adjust the next one.
Quote multi-zone installs without losing line items — or margin
R-Pro is two strong tools working as one: a field app that captures a multi-head mini-split survey room by room — nameplate scans, per-zone photos, voice memos, fully offline — and an office ERP that turns it into an itemized quote, tax invoice, and accounting with no double entry. One subscription, 10 languages, and the field work flows straight into your books.
Get R-Pro →FAQ
How do I keep line sets and small parts from getting missed on a multi-head quote?
Walk the job zone by zone in the field app and capture each head location with a photo, a measured line-set length, and a voice memo for special conditions like a condensate pump or a finished-ceiling chase. In the office ERP you build the estimate as separate line items per zone — head, line set at its real length, disconnect, pad, pump, covers — so the parts that usually slip through a lump-sum 'system' price are each on the sheet.
Can I quote each room separately but still send one estimate?
Yes. Group the estimate by zone so each indoor head and its line set, electrical, and labor show as their own block, then present it as a single itemized quote. If the homeowner drops the upstairs head, you remove that group without rebuilding the whole estimate.
Does it handle the tax invoice for an install in my country?
You set your own tax name and rate — VAT, GST, or sales tax — so the invoice and tax invoice come out correct for where you operate, not hardcoded to one region.
What happens to the job after the install is done?
You issue the receipt on site from the field app, and that same job's revenue, the purchase orders for the condenser and heads, and any expenses post into the office accounting automatically. You see net profit per install without re-keying anything.