The scheduling and invoicing app built for HVAC technicians

HVAC swings between planned and urgent: spring and fall tune-up season, then a heat wave fills the week with no-cool calls. MyKlient keeps maintenance plans on schedule while emergency jobs slot into the gaps — and every invoice goes out before you leave.

Seasonal tune-ups and maintenance plansNo-heat / no-cool service callsFilter and part replacementsMini-split installsDuct and thermostat work

Scheduling that fits the work

Recurring spring and fall maintenance visits book themselves a season ahead. When an emergency call comes in, you see today's gaps instantly and squeeze it in — and a one-tap 'Running late' text keeps the next customer patient.

Client management that remembers everything

The client card holds what the basement will make you forget: furnace and AC model and serial, filter sizes, last service date, breaker panel location, and photos from previous visits. Repeat calls start with context instead of archaeology. Maintenance-plan customers are flagged as such, so you know who gets priority when the first heat wave hits.

MyKlient invoices screen with week, month, quarter and year tabs and paid/unpaid/tax stat cards
MyKlient on Android — real screens, not mockups.

Invoices that go out before you do

Quote the repair, get the nod, then send a branded invoice with parts and labor as line items. Week, month, quarter, and year tabs show exactly how tune-up season and emergency season each performed.

Texts your clients actually want

Time windows are HVAC's reputation-maker: 'On my way' and 'Running late' texts are one tap, and 'Job completed — invoice sent' follows the moment you finish. A quick broadcast in April — 'AC tune-up slots are booking' — reaches your whole client list from your phone and fills shoulder-season weeks.

Set up in an afternoon

HVAC is one of the 18 trades MyKlient pre-loads: pick it at sign-up and maintenance service types and checkmarks arrive ready to shape into your tune-up routine — a checklist the customer can see reflected on the invoice. Import your client base from a spreadsheet and the fall rush is scheduled in an afternoon, not a weekend of data entry.

Simple pricing — no ads, ever

Free$0

Up to 5 clients, every feature included.

Starter$4.99/mo

Up to 20 clients, invoice PDFs, SMS automation. Or $49/year.

Pro$14.99/mo

Unlimited clients, team logins, audit log, CSV exports. Or $129/year.

Annual billing saves about 27%. Cancel anytime. Full plan details →

Try MyKlient free

Free for your first 5 clients — every feature, no card required. In English, Spanish, and French.

Get it on Google Play

MyKlient is also built for cleaners, landscapers, pool technicians, pet care providers, and other trades — see everything it does →