Invoice generator for HVAC techs

Quote the system. Invoice on-site. Get paid.

A system replacement is a five-figure quote made at a kitchen table. A tune-up is a 45-minute visit. MonkeeTools handles both: professional quotes that make big numbers believable, invoices built on-site, and recurring billing for maintenance agreements. No signup, no office software, no cut of your money.

Create my invoice How it works

No signup. No account. PDF download included.

Rated 5/5 on G2 by validated reviewers

$0platform cut of your money, forever

0accounts, signups, or logins

3professional invoice designs

0invoice records stored by us

Modern invoice design rendered by MonkeeTools

Rendered by the app itself. Pick a design and it remembers.

A $14,000 system quote should look like it costs $14,000.

One chain, start to paid

Every job runs the same four steps. MonkeeTools keeps them in one place, on your phone:

Step 1QuoteBuild the estimate on-site with itemized lines. Send the link; the client can sign it on their phone.

Step 2InvoiceConvert the quote in one tap when the work is done. Or start fresh, your business details are already filled in.

Step 3ChaseOne click sends a prewritten late-payment reminder from your own email. No awkward phone call.

Step 4PaidMark it paid, send the receipt. Your history shows who owes what at a glance.

AlwaysYour recordsEverything lives in your browser on your device. No account to close, no data of yours on our servers.

AlwaysYour moneyWe never process payments, so we never take a cut. Attach your own payment link or bank details.

Line items that speak HVAC techs

Set these up once. They are there every time, on every job:

Line itemSystem installFurnace, AC, or heat pump as a single quoted line, or broken out by equipment and labor.

Line itemSeasonal tune-upFlat-rate maintenance visits, easy to rebill every spring and fall.

Line itemService call + refrigerantDiagnostic fee plus refrigerant by the pound, each on its own line.

Line itemMaintenance agreementAnnual plans billed as recurring invoices, one click per cycle.

Built for how HVAC techs actually work

Big quotes need to look the part.
Homeowners compare three bids. The itemized, professional one wins, even when it is not the cheapest.

Maintenance agreements should bill themselves.
Set the agreement up once, regenerate the invoice each cycle in one click. No more chasing the spring tune-up list.

Deposits on equipment orders.
Take a deposit invoice before you order the unit, so the supply house is never funded out of your pocket.

Real invoices, three designs

Rendered by MonkeeTools itself, not mockups. Choose once and the app remembers your pick.

Classic invoice design rendered by MonkeeTools — **Classic.** The familiar one. Clean header, quiet rules.

Questions HVAC techs ask us

Do I need an account?

No. There is no account system at all. Open the page, build the invoice, download the PDF.

Can I quote a full system replacement?

Yes. Quote equipment and labor as separate lines or one package price, then convert the quote to an invoice in one tap when they say yes.

How do I bill maintenance agreements?

Create the agreement invoice once, then regenerate it each billing cycle in one click. No retyping.

Can I take a deposit before ordering equipment?

Yes. Make a deposit invoice for any amount up front, then invoice the balance on install day.

I work from my phone. Does this work on mobile?

Yes. The whole tool is built phone-first for people who invoice from the van, not a desk.

Where do my invoices go?

They stay on your device, in your browser. MonkeeTools does not store your invoice records on its servers.

Do the work.
We will handle the paperwork.

No signup. No account. Your records are not stored on our servers.

Create my invoice