Free Estimate Generator

Create a professional estimate online in minutes — no signup needed. Fill in your details, add line items, and print or save as PDF. A free estimate template and maker for plumbers, HVAC techs, electricians, and every trade.

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Your Business

Client Information

Estimate Details

Line Items

$0.00
Subtotal$0.00
Tax%
$0.00
Total$0.00
Deposit Required%
$0.00

How to Write a Professional Service Estimate

A well-crafted estimate does more than show the client a price — it builds trust, sets expectations, and protects your business. Whether you're a plumber quoting a bathroom reno or an HVAC tech bidding on a commercial install, following a consistent estimate format makes you look professional and saves time. (For a deeper walkthrough, see our guide on how to write a quote for a service job.)

1. Use Your Branding

Include your business name, logo (on printed copies), phone, email, and license number. This immediately establishes credibility and makes it easy for the client to contact you.

2. Break Down the Scope of Work

List each task or component as a separate line item with quantities and prices. A detailed breakdown helps the client understand what they're paying for and reduces disputes later on.

3. Set Clear Validity

Material costs fluctuate. Setting a validity period (typically 15-30 days) protects you from price increases. If the client waits too long, you can re-quote without awkward conversations.

4. Include Payment Terms

State whether you require a deposit, how much it is, and when the balance is due. Common structures include 50% upfront / 50% on completion, or 25% deposit / 25% at midpoint / 50% on completion for larger projects.

5. Add Terms & Conditions

Cover warranty details, scope change policies, and cancellation terms. This protects both you and the client if the project evolves beyond the original scope.

6. Offer More Than One Option

Estimates with two or three pricing tiers (good / better / best) consistently close at higher values than single-price estimates — the customer compares your options against each other instead of against a competitor. Read more in our guide to multi-option quotes.

Pro Estimate Tips

  • Always number your estimates for easy reference and tracking.
  • Include a signature line for client acceptance — it turns an estimate into a binding agreement.
  • List exclusions (what's NOT included) to prevent scope creep.
  • Follow up within 2-3 days if the client hasn't responded.
  • Use the same template every time to build brand recognition.
  • Consider offering two or three pricing tiers (good / better / best) to increase average job value.

Frequently Asked Questions

Is this estimate generator really free?
Yes — completely free, no signup and no watermark. Fill in your details, add line items, and print or save your estimate as a PDF. It's built by Fieldbookly, which also offers a free plan for sending estimates and taking bookings online, but you don't need an account to use this tool.
How do I write an estimate for a service job?
Start with your business details and license number, then describe the scope of work, break it into line items with quantities and rates, add tax and any required deposit, set a validity period (15–30 days is standard), and include your terms. This free estimate maker walks you through each of those fields in order.
What should an estimate include?
A professional estimate should include your business name/contact info, the client's details, a unique estimate number, date and validity period, a detailed breakdown of work and materials, pricing for each line item, applicable taxes, any required deposit, and your terms and conditions.
What's the difference between an estimate and a quote?
An estimate gives the client an approximate cost that can change as the project evolves. A quote (or bid) is a fixed price — once the client accepts, you're typically committed to that number. Many contractors use the terms interchangeably, but legally there can be distinctions.
How long should an estimate be valid?
Most service businesses set estimate validity between 15 and 30 days. Material prices can fluctuate, so keeping a shorter validity period protects you from price increases on parts and supplies.
Should I require a deposit before starting work?
Yes — especially for larger jobs. A deposit (typically 25-50%) confirms the client's commitment and helps you cover upfront material costs. It also protects you if the client cancels after you've already purchased supplies.
Can I save my estimate as a PDF?
Yes. Click Print / Save as PDF and choose 'Save as PDF' as the destination in your browser's print dialog. You'll get a clean, letter-sized estimate document you can email or text to your client.
How can I send estimates customers approve online?
A printable estimate works, but an online estimate gets approved faster. With Fieldbookly you can build an estimate with up to 3 pricing options, text it to the customer, and they approve with one tap — then it converts to an invoice automatically. The free plan is enough to try it on real jobs.

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Fieldbookly lets you create, send, and track estimates from your phone. Clients approve with one tap, and accepted estimates automatically convert to jobs and invoices.

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