HVAC Contractor Software

Werx is the office software for HVAC contractors who want to bill faster and protect margins. Run estimates, AIA-style and progress billing, job costing, and field time. Then sync it all to QuickBooks.

  • AIA-style and progress billing for commercial installs
  • T&M invoicing for service calls
  • Two-way QuickBooks Online sync

HVAC by the numbers

Most HVAC shops still run on spreadsheets

The average HVAC firm runs about five people. Most still bill jobs and track costs by hand, and that is where margin slips. Figures from the U.S. Bureau of Labor Statistics and IBISWorld.

U.S. HVAC contractors
118,433Heating and air-conditioning firms in 2025
HVAC technicians
425,200Mechanics and installers working in 2024
Average shop size
5.2Employees per HVAC business

Werx is how HVAC contractors leave spreadsheets behind. Estimate, bill with AIA-style and progress billing, and see job costs on every job, all in one place.

The problem

Where HVAC contractors lose money

Most lost margin hides in billing and job costs. Here is where it slips, and how Werx catches it.

Late service invoices

Bills written days after the job slow your cash. Invoice service calls from the office the same day.

Time and material invoicing

Installs stuck in paperwork

GCs want G702 and G703 style pay apps. Werx builds them from your schedule of values.

AIA billing

Retainage you forget to chase

Retainage of 5 to 10 percent adds up across jobs. Werx tracks it on every pay app.

Progress billing

Unbilled change orders

Extra work in the field often never gets billed. Werx turns field tickets into billable change orders.

Change orders

No live job costs

Without real-time costs, you find losses too late. Werx shows budget versus actual by cost code.

Job costing

Slow payments

Paper checks stall your cash. Let customers pay online by card or ACH.

Online payments

Features that move your HVAC business forward

Werx gives HVAC contractors the office tools to bid, bill, and get paid. Each one is built for trade work, not borrowed from a generic app.

  • Itemized and proposal estimates
  • Progress billing
  • AIA-style billing
  • Time and material invoicing
  • Change order tracking
  • Field time tracking
  • Job costing
  • Job profitability
  • Purchase orders
  • RFIs and submittals
  • QuickBooks integration
  • Online payments
See it work

Bill an AIA-style pay app and get paid

Commercial HVAC installs bill on a schedule of values, not a flat invoice. Werx builds the G702 and G703 style pay application for you.

Set percent complete on each line. Werx calculates retainage and the current payment due. No spreadsheet, no math errors.

Send the pay app to the GC through a branded portal. They review and pay online, and you see when they open it. Learn more about AIA billing and what AIA billing is.

Your customer's view

Send a pay app your customer can pay online

Your GC opens a clean, branded pay application. They see the schedule of values, retainage, and the amount due. They pay by card or ACH, so you get the cash sooner.

hvac aia paid portal

Software that runs the money side of your HVAC business

From the first estimate to the final payment, Werx keeps your billing, costs, and cash in one place.

Estimates and proposals

Build itemized estimates or proposals with markup and tax. Send for online approval, then turn the won bid into a project.

AIA-style and progress billing

Bill commercial installs by percent complete on G702 and G703 style pay apps, with retainage handled for you.

Time and material invoicing

Invoice service calls and small jobs fast. Add labor and materials as the work happens.

Job costing and profit

Track budget versus actual by cost code. See projected and to-date margin on every HVAC job.

Change orders

Capture extra work in the field, get it approved, and roll it into your next pay app.

Field time tracking

Crews log time by job and cost code from the Werx Field App. Labor cost updates in real time.

Trusted by Contractors

Trusted by Contractors Like You

Capterra

“It feels like the platform was built with real contractors in mind, not just software developers guessing what is needed.”

G2

“It's a reliable tool that has helped me stay organized, manage tasks more efficiently, and keep projects on track.”

Capterra

“Great program, user friendly and allows Project Managers easy access to monitor their project's budgets.”

Why HVAC contractors choose Werx

Most field apps skip the hard part: real billing and job costing. Werx is built for it.

Built for the trades

Made for contractors who bill commercial and residential work, not a plain invoice tool.

Real AIA-style billing

G702 and G703 style pay apps with retainage. Most small-shop tools cannot do this.

Know your margin

Live job costs and profit on every job, so you catch losses while you can still fix them.

Works with QuickBooks

Two-way sync with QuickBooks Online on every plan, at no extra cost.

One office system

Estimates, billing, costs, time, and payments in one place. No juggling apps.

QuickBooks Online Integration

Keep your books in sync

Connecting Werx to QuickBooks Online is simple. Sync your invoices, payments, and expenses so your books stay current. No double entry, and no end-of-month scramble.

features fw qb connect

What is HVAC contractor software?

HVAC contractor software is an office tool that handles estimates, billing, job costs, and payments for heating and cooling companies. It replaces spreadsheets and paper for the money side of the business.

Werx is built for both sides of HVAC work. Bill commercial installs with AIA-style and progress billing. Invoice service calls and repairs with time and materials.

Track labor from the field, see job costs in real time, and sync to QuickBooks. You bid, bill, and get paid from one place.

FAQ

FAQ - HVAC Contractor Software

Is Werx HVAC billing software?

Yes. Werx bills HVAC work two ways. Use AIA-style and progress billing for commercial installs, and time and materials for service calls.

Can Werx do job costing for HVAC jobs?

Yes. Werx tracks budget versus actual by cost code on every job. You see projected and to-date profit while the work is going on.

Can I create HVAC estimates and proposals?

Yes. Build itemized estimates or proposals with markup and tax. Send them for online approval, then turn the won bid into a project.

What is the best software for HVAC contractors who do AIA billing?

Look for real G702 and G703 style pay apps with retainage. Many small-shop tools skip AIA-style billing. Werx builds the pay application from your schedule of values.

Does Werx work for both service calls and commercial installs?

Yes. Service and repair jobs bill as time and materials. Larger installs bill by percent complete with progress or AIA-style billing.

Does Werx sync with QuickBooks for HVAC businesses?

Yes. Werx syncs two ways with QuickBooks Online. Invoices, payments, and expenses flow into your books. It is included on every plan.

Simple to use. Free to try.

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