Tech for HVAC Companies: The Software Stack That Actually Runs a Shop in 2026

The whole stack is five layers: dispatch and CRM, job tools, accounting, parts and inventory, and the phone. A 10-tech shop spends $29,400 to $60,000 a year on ServiceTitan alone; a 3-truck shop spends $150 to $350 a month on Jobber or Housecall Pro and keeps the rest. Here is what each layer actually costs, who each product is for, and who should skip it.

The spine: dispatch + CRM (this is the decision)

This is the decision everything else hangs on. The field-service system runs scheduling, dispatch, quoting, invoicing, and customer records — it is the whiteboard, the filing cabinet, and the dispatcher, in one login.

• ServiceTitan — ~$245 to $500 per tech per month, $5,000 to $50,000 implementation, 12 to 36-month contracts. Best for: 20+ techs with an operations manager and the revenue to feed it. A 10-tech shop pays $29,400 to $60,000 a year before add-ons. Skip it if: you have fewer than 10 techs — you will pay enterprise money for features you never open, and the 6-month onboarding will eat a whole season.
• Jobber — $49 to $699/month flat by team size (Core $49 for 1 user, Connect $139 for 5, Grow $199 for 10; extra users $29). Built-in processing at 2.9% + $0.30. Best for: 1 to 10 trucks that want scheduling, quoting, invoicing, and two-way texting without a sales call. Skip it if: you need deep commercial or HVAC-specific workflows — it is a generalist.
• Housecall Pro — $59 to $299/month billed annually ($79 to $329 monthly). Built-in processing at 2.99%. Stronger automatic review-request engine than Jobber. Best for: residential shops that live on Google reviews. Skip it if: route optimization matters to you — Jobber has it built in; Housecall Pro does not.
• FieldEdge — ~$100 to $125 per user per month. Born for HVAC, deep dispatch and quoting. Best for: mid-size shops mixing residential and light commercial. Skip it if: you are under 5 techs — the per-user price stings at small scale.
• ServiceFusion — $208/month flat. Best for: bigger teams that want one predictable bill instead of per-tech math. Skip it if: you are a solo operator — Jobber's $49 tier is cheaper.

The QuickBooks trap: Jobber and Housecall Pro sync to QuickBooks Online only. If your accountant still lives on QuickBooks Desktop, that is a blocker for the whole category — plan the migration before you sign anything, not after.

The job tools: load calcs, price books, and the refrigerant paperwork

The tools that touch the actual job — sizing the system, pricing the work, and keeping the paperwork the EPA cares about.

• Load calculations: a right-sized system is the difference between a happy customer and a callback. Cool Calc is ACCA-approved Manual J and free with a distributor account; Wrightsoft is the legacy king at roughly $400 a month; AutoHVAC ($47/mo) does AI-assisted extraction from measurements and blueprints. Doing a real load calc on every install is no longer optional — it is what separates you from the trunk-slammer guessing tonnage.
• The price book: flat-rate pricing ends the "how much will it cost?" stall at the kitchen table. Digitize it inside your field-service system so the tech quotes the same number the office would — and so the AI answering the phone quotes from a current card, not a 2022 PDF.
• Refrigerant paperwork: EPA Section 608 plus the AIM Act phasedown mean leak records, recovery logs, and cylinder tracking. Nobody wants to do it, so make it a photo: snap the cylinder label, log the pounds in the job record, done. The same habit kills the shoebox — scan the equipment nameplate at install, register the warranty the same day, and the serial number is searchable forever.
• GPS and telematics (~$20/vehicle/month): dispatch knows where every truck is, and the timestamped arrival is your proof-of-service when the "nobody showed up" review appears.

The money layer: accounting, inventory, and reviews

The boring layer. It is also the layer that decides whether you made money last month.

• QuickBooks Online — the standard. Invoices flow in from your field-service system, your accountant lives here, and clean books are what let you borrow money to grow. If you are still on Desktop, the migration is annoying once and valuable forever.
• Parts and inventory: min/max quantities on every truck, serialized tracking on warranty parts, barcode scanning from the phone. Running out of capacitors in July is a dispatch failure, not a parts failure — the system should have reordered in May.
• Reviews: an automatic ask after every completed job (Housecall Pro does this natively; the others need a nudge). Answer every review, including the unfair ones — your Google Business Profile is your second website, and it is free.
• The phone: missed-call text-back plus AI answering after hours. The full treatment is in AI for HVAC companies — but budget it here, because the phone is infrastructure, not marketing.

Buy vs build: when off-the-shelf stops fitting

Buy when: your workflows are standard — schedule, dispatch, invoice, get paid. That is 95% of HVAC shops, and the products above already do it. Buying is cheaper, faster, and maintained by someone else.

Build when: you run multi-brand operations, need a customer-facing membership portal, want a pricing engine with your own logic, or need distributor and manufacturer integrations nobody sells off the shelf. Honest numbers: a custom customer portal costs $15,000 to $40,000 to build and $500 to $2,000 a month to maintain. A full custom field-service system is a $250,000+ mistake — do not build the thing you can buy.

The middle path most growing shops actually take: off-the-shelf dispatch plus custom integrations on real APIs — payments through an API like Finix's, accounting through QuickBooks' API, your membership portal talking to both. You buy the commodity and build only the differentiator.

When the custom piece is real, have it built by people who do it for a living: Nova — nearshore senior engineers, an AWS partner, first consultation free. The rule of thumb: if you are under $3M in revenue, you almost certainly should not be building software. If you are over it and the off-the-shelf tools are bending your process instead of supporting it, that first consultation is where the honest scoping happens.

The rollout order and the total bill

The rollout order: month 1, the field-service system plus QuickBooks sync — nothing else matters until the schedule and the invoices live in one place. Month 2, review automation and missed-call text-back. Month 3, AI answering before the summer surge. Ongoing: digitize the price book, then launch the membership program on card-on-file billing.

The total bill: a 3-truck shop lands around $250 to $500 a month all-in — FSM, QuickBooks, AI answering, review tool. A 10-tech shop lands around $1,000 to $2,500 a month all-in on the mid-tier stack, or $3,000 to $5,000 a month on ServiceTitan. If the software costs more than a callback a month and you are not running twenty trucks, renegotiate or downshift — the tools serve the shop, not the other way around.

The software should cost less than one callback a month — if it costs more than a truck payment and you have fewer than ten techs, something is wrong. The phone layer is covered in AI for HVAC companies, the money layer in payments for HVAC companies. Everything lives under the HVAC industry hub.