Free HVAC estimate generator
Use the HVAC estimate generator above to build a professional estimate right in your browser — no signup, nothing stored. Add your business details and logo, itemize equipment, labor, and materials, request a deposit, and download a clean PDF to send for client approval. It comes preloaded with common HVAC line items you can edit or remove.
How to make an HVAC estimate
- Add your business details. Enter your business name, address, phone, and email, and add your logo. Include your HVAC license and EPA certification number where required.
- Enter the client and scope of work. Add who you're quoting, the equipment or system involved, and a clear description of the job.
- Itemize the work. Break out equipment (make and model), refrigerant, parts, and labor — each with a quantity and price.
- Request a deposit and set validity. The generator is in estimate mode — request a deposit to hold the job and note how long the quote is valid (for example, 30 days).
- Download and send for approval. Tap Download PDF and send it to your client to review and approve. Nothing leaves your device.
What to include on an HVAC estimate
A good HVAC estimate should note the equipment being installed or repaired (make and model where known), a clear description of the work, materials and refrigerant itemized separately from labor, any permit costs, a deposit request, warranty terms for new equipment, and a validity period. For full installs, note the estimated timeline and what would trigger a change order.
HVAC estimate generator FAQ
Is the HVAC estimate generator free? Yes — completely free, with no account, no signup, and no watermark.
Do I need to create an account? No. Everything happens in your browser, and nothing is uploaded or stored.
Can I use it on my phone? Yes — it works on phones, tablets, and computers, so you can quote right from the job site.
Can I turn an estimate into an invoice? The web generator makes quick estimates. To convert an approved estimate to an invoice in one tap and track deposits, download the free BIG INVOICE app.
Win more jobs with BIG INVOICE
The generator is great for a quick quote. BIG INVOICE lets you build an HVAC estimate on-site from your saved line items, request a deposit, get client approval, and convert it straight to an invoice when the install is done — no re-entering anything. Free to download on iPhone, no credit card required.