Quotation and invoice app for air-con technicians in Thailand

Example made with the GlideQuote app (Pro) — Quotation — Example made with the GlideQuote app (Pro)

Blank form (free PDF) — Quotation — Blank form (free PDF)

The documents an air-con technician uses every day

Most air-con jobs cover several units — clean three units, top up gas on one. A quotation that prices each unit clearly helps the customer decide quickly and cuts haggling on site.

Company and condo customers often ask for an invoice and a receipt, and companies withhold 3% tax. Getting the paperwork right first time gets you paid sooner.

What an air-con quotation should include

The job per unit: cleaning, installation, repair, gas top-up, relocation
Unit size (BTU) and number of units
Price per unit, with parts or materials as separate lines
Travel charge, if any
How long the price is valid and the job date
Workmanship guarantee, if any, and payment terms

What GlideQuote does

From the job to getting paid, in 4 steps

Price it on site — save items you use often, such as “Air-con clean 9,000–12,000 BTU”, and add them in a few taps
Send the PDF by LINE — before you leave
Agreed → invoice — one tap, with your bank details and PromptPay QR (Pro)
Paid → receipt — record the payment and create the receipt PDF

Send the PDF by LINE

Tap Share on the document and send it as a PDF by LINE, WhatsApp, email or any app on your phone — with your logo on it.

PromptPay QR on the invoice PRO

Your PromptPay number becomes a QR the customer can scan to pay, on invoices charged in baht.

3% withholding tax PRO

Switch it on per invoice; the deduction and the net amount are shown clearly for company customers.

Quote → invoice in one tap

Once the customer agrees, one tap turns the quote into an invoice with the same items, customer details and payment terms — no retyping.

Part payments and receipts

Record a part payment or the balance, then create the receipt PDF straight away.

Polite payment reminders

Home shows what is outstanding and overdue; Remind client gives you a ready message with the amount and your bank details to send by chat.

PRO = included in the Pro plan

Common questions

Can I quote for several units on one quotation?

Yes. Add each unit or job as its own line with quantity and unit price; the app adds up the total, and items you use often can be saved and reused.

A company customer wants to withhold 3% — what do I do?

On Pro, switch withholding tax on for that invoice; the document shows the 3% deduction and the net amount. The company withholds and gives you a 50 ทวิ certificate.

When does the app issue a “tax invoice”?

The app uses the ใบกำกับภาษี (tax invoice) heading only when you switch on VAT registration in Tax settings; with it off, the same invoice is headed ใบแจ้งหนี้. Switch it on only if you really are VAT-registered — issuing a tax invoice without registration is against the law.

Which phones does it run on?

iPhone and iPad — download it on the App Store. The Android version is coming to Google Play.

What does GlideQuote cost?

There is a permanent Free plan: unlimited invoices and receipts, 3 quotes a month, with a small GlideQuote watermark on PDFs. Pro on the Thai App Store is ฿166 a month billed annually (฿1,990 a year) or ฿299 month to month, and the first month is free.