Free tools for HVAC business owners
Calculators and generators for HVAC contractors: price service calls and jobs, send estimates and invoices, ask customers for Google reviews and write your hours and holiday messages. No signup, and everything you type stays in your browser.
All free tools
Pricing & Estimates
Price your time and your jobs from your own numbers, then send the estimate and invoice.
Profit Margin & Markup Calculator
Margin, markup, price and profit for an HVAC job from any two numbers.
Open tool →Contractor Hourly Rate Calculator
Turn the income you want into the hourly rate your HVAC business needs to charge.
Open tool →Service Call Fee Calculator
Price an HVAC trip fee from drive time, labor, truck cost and the margin you want.
Open tool →Job Estimate Generator
Build an HVAC estimate with labor, equipment and parts lines and save it as a PDF.
Open tool →Free Invoice Generator
Create an HVAC invoice with line items, tax and a due date and download it as a PDF.
Open tool →Loan & Equipment Financing Calculator
Monthly payment and total interest for a service truck, equipment or business loan.
Open tool →Google Reviews
Ask happy customers for Google reviews the right way.
Your Website
Domain, cost and search tools for your business website.
Domain Availability Checker
See if a business domain name is taken or looks free, straight from your browser.
Open tool →Website Cost Calculator
Compare doing it yourself, hiring an agency and a monthly plan, using your own numbers.
Open tool →Google Search Preview Tool
Check your title and meta description length and see an approximate search result.
Open tool →Google Business Profile Description Generator
A 750-character business description from your details, built to follow the profile rules.
Open tool →HVAC Business Name & Domain Ideas
Domain ideas from your company name, city and trade, with a live availability check.
Open tool →More tools
General calculators and utilities, free and private.
Image Resizer & Compressor
Shrink job site photos so they email fast and load quickly on your website.
Open tool →QR Code Generator
QR codes for your website, review page, contact card or phone, as PNG or SVG.
Open tool →Email Signature Generator
A clean HTML email signature for your HVAC business, ready for Gmail or Outlook.
Open tool →From the blog
Practical guides for HVAC business owners.
Seasonal Website Updates: Tune-Ups and Furnace Checks
A season-by-season plan for updating an HVAC website and Google profile: spring AC tune-ups, fall furnace checks, holiday hours and claims you can back up.
Read article →October 18, 2026Professional Email on Your Own Domain
Why contractors should send email from their own domain, which addresses to create, and how SPF, DKIM and DMARC protect your mail.
Read article →October 17, 2026HVAC Website Photos You Can Take With Your Phone
A shot list and phone camera tips for HVAC website photos: team, trucks, installs and before-and-after, plus privacy, file size and alt text.
Read article →Hours & Messages
Hours and holiday wording for your website, Google profile, voicemail and text replies.