Lemon LabsHVAC Software

Brand new. Deliberately fast.

Software for your
HVAC shop,
drawn to fit.

Off-the-shelf field service tools make you bend. We build the thing you sketched on the back of an invoice — and we hand it to you in days.

Get your free prototype$0 upfront. Really.
Hand-drawn illustration of an HVAC technician with a tablet

days, not months  ✦  $0 upfront  ✦  built around your crew  ✦  changes every month  ✦  no seat-count games

Days, not months

An AI-accelerated build loop lets a small team ship what used to take a quarter. First working version inside a week.

$0 upfront

No five-figure discovery invoice. One monthly subscription that covers the build, the hosting and every change after.

AI-native builders

We live in these tools all day. That's why Lovable.dev rates us a Top 10% Builder.

Top 10% Builder

recognised onLovable.dev

Our team of power AI developers sits in the top decile of builders on the platform we build on. That rating is the reason a five-day delivery isn't a stunt.

How a build goes

  1. 01

    Napkin sketch call

    45 minutes on the phone. We map your dispatch board, your quirks, your paperwork — the way you actually run jobs.

  2. 02

    Built while you work

    Our AI-accelerated build loop turns that sketch into working software in days. You watch it take shape, live.

  3. 03

    In the trucks

    Techs use it on day one. We keep tuning it every month — new forms, new reports, new ideas — at no extra charge.

Hand-drawn sketch of an HVAC service van

What we draw up

Dispatch & scheduling

Drag-and-drop boards that match your zones, your crews and your on-call rotation.

Field quoting

Good / better / best proposals a tech can build on a tailgate in four taps.

Maintenance agreements

Recurring visits, renewal reminders and equipment history that never falls through.

Owner dashboards

Close rate, revenue per truck, callback rate — the numbers your spreadsheet hides.

Six things we can show you

Working demo applications, each one built the same way yours would be. Pick the one that looks like your worst Monday.

01Ends the whiteboard

Dispatch board

Drag-and-drop tech scheduling across a day or week grid, with drive-time gaps and colour-coded job status.

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02Wins more jobs

Instant quote builder

Equipment, tonnage and add-ons priced on the spot into good / better / best tiers, signed and PDF'd from the driveway.

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03Recurring revenue

Maintenance agreements

Service plans that generate their own seasonal visits, chase their own renewals and show you who's about to lapse.

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04Techs will use it

Field tech job app

Checklists, photos, model and serial capture, parts used and a customer signature — works with one bar of signal.

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05The real numbers

Owner dashboard

Close rate, revenue per truck, average ticket, callback rate and a tech leaderboard on one page.

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06Fewer phone calls

Customer portal

Homeowners book their own slots, watch the ETA, and pull up past service and filter reminders themselves.

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Get your free prototype

$0 today. Monthly after that.

One subscription covers design, build, hosting and every change you think of later. Cancel whenever the software stops earning its keep.

Get your free prototype

or see the three plans