Bit & GrainBit & Grain
Built for HVAC pros

HVAC business management, service to install.

Whether you're running emergency service calls or installing new systems, Bit & Grain handles HVAC workflows end to end.

Why HVAC pros choose Bit & Grain.

Service to install, one tool for both modes

HVAC bounces between emergency service runs (route + service log + parts) and multi-day installs (estimates + supplier orders + change orders + final commissioning). Bit & Grain handles both modes, owner-operators and small HVAC crews running 1 to 5 person businesses get the same surface as bigger shops.

Every HVAC workflow in one place

Service tickets, install estimates, supplier orders, maintenance-contract scheduling, AND seasonal tune-up routes, without bouncing between Housecall Pro, QuickBooks, a manufacturer portal, and a paper tag-and-bag system.

AI handles the receipt and parts grind

Snap a photo of any supply-house receipt and Grain AI logs vendor, amount, items, and maps each line to the right job. Less time on the dashboard at the end of the day, more billable hours and clean tax-ready books.

How an HVAC contractor uses Bit & Grain from emergency call to full install.

Carlos runs a two-tech HVAC business in suburban Texas. Here is how a week that starts with an emergency service call and ends with a full system install moves through Bit & Grain.

  1. 1

    Emergency service call on Monday

    A homeowner calls at 9 AM: the air handler is not cooling. Carlos opens Bit & Grain, creates a service job, and adds the address to his route. He arrives, runs diagnostics, and logs the refrigerant readings, low-side pressure 40 psi, high-side 250 psi, 2 lbs R-410A added, into the service log on his phone. He snaps the supply-house receipt from the refrigerant cylinder purchase in Grain AI chat and the cost assigns to the job automatically.

  2. 2

    On-site diagnosis and change order

    Carlos determines the evaporator coil is failing and quotes the homeowner a coil replacement. He creates a change order in Bit & Grain with the parts and labor cost. The homeowner approves it digitally from their phone. Carlos orders the coil from his distributor and notes the lead time in the job.

  3. 3

    Full system install on a separate job

    Meanwhile, Carlos has a full system install starting Thursday: new 3-ton heat pump, air handler, and ductwork in a finished addition. He builds the estimate in Bit & Grain with separate line items for equipment, refrigerant, ductwork labor, and electrical work. The homeowner approves and pays a 50% deposit through Stripe. On install day, both techs log their hours on the job from their phones.

  4. 4

    Final commissioning and invoice

    After commissioning, Carlos logs the final system readings in the service log and marks the install complete. He sends the final invoice: original estimate plus any materials added during install. The homeowner pays the balance via Stripe. The whole job, from estimate to paid invoice, runs through one tool.

HVAC business software questions.

HVAC business software questions

What does it really cost to run an HVAC business?

Refrigerant, parts, truck maintenance, insurance: plug in your numbers and see your true overhead per service call and actual install margin.

Real Cost of Running a Trade Business

See your true overhead per job and actual margin.

How many jobs you complete per month on average

Average revenue per job billed to the client

Overhead per job$106
Margin per job$1,394
Margin percentage92.9%
Break-even jobs per month1jobs
Monthly net revenue$11,150

Overhead includes fuel, tool replacement, and insurance only. Labor costs, materials, and other expenses vary per job and are not included here.

For reference only. Verify with your local building code and a licensed professional before making decisions.

Coming from Housecall Pro? See how Bit & Grain compares →

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