HVAC Software Stack
Every system you install is fifteen years of service you either keep or lose
248+ tools, walked through in the order the decision actually happens — the platform that runs the shop first, then the tools built for the trade, then what it all costs at your size.
HVAC revenue arrives in two very different shapes, and they pull software in opposite directions. Replacement and install work is a sales business: a lead, an in-home consultation, a financed proposal, a crew for a day or two. Service and maintenance is a logistics business: agreement renewals, seasonal tune-up campaigns, and getting a technician to a no-cool call in July before the customer calls someone else. A shop weighted toward installs needs proposal tools, financing integration and good lead attribution. A shop weighted toward agreements needs recurring-visit scheduling and a customer record that remembers which equipment is in which attic.
Then there's the seasonality nothing else in the trades quite matches. Two weeks of extreme weather can produce a quarter's demand, and the constraint stops being marketing and becomes dispatch capacity and parts availability. That's why HVAC owners overbuy on scheduling and underbuy on job costing — the pain is loudest in August. Underneath both models sit obligations that don't care about your size: EPA 608 refrigerant tracking, Manual J load calculations that justify equipment sizing, and warranty registration that has to happen before the manufacturer will honor a claim two years later.
What runs the shop
This is the one decision that constrains every other tool you buy — and it isn't a question of which platform is best. It's which kind of work you sell.
Pick the lane that matches how the money actually comes in, then judge platforms only against others in that lane. Comparing a residential dispatch tool to a project-costing platform tells you nothing except which one has more features.
These platforms optimize for scheduling density and getting a technician to the next call — dispatch boards, call booking, on-site payment. You gain a well-oiled service operation and give up serious job costing: if you later start bidding multi-month build-outs, this tier will fight you.
All-in-one field service management platform built for residential and commercial trades.
Housecall Pro is a cloud-based field service management platform built for residential home service contractors. Founded in 2013 and headquartered in San Diego, CA, it serves 45,000+ businesses across HVAC, plumbing, electrical, cleaning, roofing, painting, landscaping, and 50+ other trades. The platform covers the full job lifecycle — scheduling, dispatching, estimating, invoicing, payments, GPS fleet tracking, CRM, online booking, and marketing automation — delivered via web and native iOS/Android apps. Operated by parent company Codefied Inc., it also runs subsidiaries BuildBook and Trade Academy.
Built around the contract rather than the call: asset histories per site, planned maintenance visits, and invoicing that survives a customer's AP department. Heavier to set up than a residential tool, and overkill if most of your revenue still walks in from homeowners.
BuildOps is an all-in-one commercial contractor management platform purpose-built for mechanical, electrical, plumbing, HVAC, fire and life safety, and refrigeration contractors. Founded in 2018 and headquartered in Los Angeles, it unifies service management, project management, financials, and CRM into a single cloud-based system with AI-powered automation (OpsAI). The platform targets mid-size to enterprise commercial trade contractors and has achieved unicorn status with over $250M in total funding.
ServiceTrade is a cloud-based field service management platform purpose-built for commercial service contractors. Founded in 2012 and headquartered in Durham, NC, it serves mechanical, HVAC, fire protection, electrical, and refrigeration contractors with an integrated suite covering scheduling, dispatch, inspections, parts management, CRM, and accounting integrations. The platform serves 1,300+ commercial contractors and processes millions of service requests annually.
simPRO is a cloud-based field service management and job management platform purpose-built for trade contractors. Founded in 2002 in Brisbane, Australia by an electrical contractor and a software engineering student, it covers the full job lifecycle from quoting and estimating through scheduling, dispatch, inventory, invoicing, and reporting. It is widely used by HVAC, plumbing, electrical, fire protection, and general-contracting businesses across Australia, New Zealand, the UK, and the US. The platform scales from single-trade service companies to multi-division commercial contractors with project management complexity.
Job costing against a bid is the whole product here — change orders, RFI and submittal tracking, progress billing. Necessary the moment a missed change order costs more than a week of idle trucks, and heavy overhead if you're still running a service board.
Cloud-based construction management platform connecting project stakeholders across the build lifecycle.
eSUB is a cloud-based construction management platform built exclusively for commercial specialty subcontractors. Founded in 2008 and headquartered in San Diego, CA, it centralizes project documentation (RFIs, submittals, change orders, daily reports), field-to-office communications, time and materials tracking, job costing, and progress billing. eSUB Cloud targets trade contractors—electrical, HVAC, plumbing, mechanical, concrete, masonry, drywall, and structural steel—who need a field-first, mobile-capable system that integrates with accounting platforms such as QuickBooks and Sage rather than replacing them.
Autodesk Build is a cloud-based construction project management platform that evolved from PlanGrid and BIM 360, now part of the Autodesk Construction Cloud (Forma Build) suite. It centralizes document management, RFIs, submittals, cost management, scheduling, field operations, quality, and safety workflows across the full construction project lifecycle. Trusted on 2M+ projects globally, it is used by general contractors, specialty subcontractors, and owners on commercial, industrial, and institutional projects.
Built for hvac
Most software a hvac contractor runs was written for contractors in general. These were written for this trade — which usually shows up as takeoff, estimating, or compliance workflows that a general-purpose tool makes you rebuild by hand.
Residential HVAC commissioning and diagnostic platform — pulls live readings from 80+ Bluetooth tools, scores the system against rated conditions, and produces a customer-ready report before the tech leaves.
ACCA-approved HVAC load calculation and system design software — Right-Suite Universal for Manual J/S/D/N, plus Right-J Mobile and Right-Mobile Consultant for in-home work.
Estimating and takeoff software built for electrical, plumbing and mechanical contractors, with tiered estimating packages and a design-build takeoff tool.
A short list on purpose — software written for hvac specifically is rare, and we would rather show two real ones than pad this with general-purpose tools.
The rest of the stack, by role
Everything below fills a specific job. Tools are only compared against others doing the same job, because "is Gusto better than Procore" is not a real question — the useful question is always which payroll tool, or which documentation tool.
The books
Job costing, invoicing, and a P&L your accountant will accept without re-keying it. This is the tool you're most likely to still be running in ten years, so the switching cost is real — weight it accordingly.
Industry-standard small business accounting with contractor-specific features for job costing and payroll.
Viewpoint Vista is an enterprise-grade construction ERP platform owned by Trimble, built for mid-size to large general contractors, specialty subcontractors, and commercial contractors. It delivers a deeply integrated accounting-first suite spanning job costing, payroll, HR, project management, equipment management, service management, and document control. Part of the Trimble Construction One ecosystem, Vista runs on Microsoft Azure and serves contractors with annual revenues ranging from $50 million to over $1 billion.
Sage 100 Contractor is a construction-specific accounting and project management platform built for small to mid-size specialty contractors and general contractors. Originally developed as Master Builder Software (founded ~1980 by Dan Smith), acquired by Intuit in 2001, then by Sage Software in 2006, and rebranded Sage 100 Contractor. The platform integrates job cost accounting, construction payroll (including union and certified payroll), estimating, project management, service dispatch, scheduling, and document control in a single system. It supports both on-premise and cloud-hosted deployment and is used by approximately 18,000+ contractor businesses across the US.
Deltek ComputerEase is a construction accounting and project management platform purpose-built for subcontractors and specialty contractors. Founded in 1983 in Cincinnati, OH, and acquired by Deltek in 2019, it serves more than 6,000 contractors with integrated job costing, payroll, billing, service management, and field-to-office mobile tools. The platform targets companies of all sizes from small specialty subs to mid-market general contractors, with particular strength in union/certified payroll, WIP reporting, and AIA billing.
Payroll & crew
Timesheets, onboarding, and — on prevailing-wage work — certified payroll. The compliance paperwork here scales faster than headcount does, which is why owners usually buy this a year later than they should have.
Gusto is a cloud-based payroll, HR, and benefits platform purpose-built for small and mid-sized businesses in the US. Founded in 2011 as ZenPayroll and rebranded in 2015, Gusto serves 400,000+ businesses with full-service payroll (including multi-state, contractor, and prevailing wage), automated federal/state/local tax filing, benefits administration (health, dental, vision, 401k, workers comp), employee onboarding, time tracking, scheduling, compliance tools, and HR reporting. It integrates natively with QuickBooks and Xero and offers a developer API for embedded payroll. Construction trades, HVAC, plumbing, and electrical contractors use Gusto to pay mixed W-2 and 1099 crews, automate new-hire reporting, and push labor costs to their accounting software.
GPS time tracking and employee scheduling platform (formerly TSheets) with native QuickBooks integration for trades contractors.
Time tracking and scheduling software built for field service and construction companies.
Job documentation
Photos, notes, and sign-offs attached to the job rather than to somebody's phone. This is the record that settles a dispute a year after the crew left.
DocuSign is the market-leading electronic signature and intelligent agreement management platform, used by 1.7 million customers including 95% of Fortune 500 companies. Widely adopted by contractors across all trades for proposals, contracts, change orders, lien waivers, and service agreements. The platform has expanded beyond e-signature into a full agreement lifecycle suite (IAM) with AI-powered contract analysis, CLM workflows, web forms, payments, and 1,000+ integrations. Listed on NASDAQ as DOCU.
CompanyCam is a photo documentation and field communication platform purpose-built for contractors. Founded in 2015 by Luke Hansen out of his family's roofing business in Lincoln, Nebraska, the platform lets field teams capture timestamped, GPS-tagged photos and videos, annotate images, manage project timelines, run AI-powered checklists and reports, collect in-app payments, and collaborate with customers and subcontractors — all organized by job. Serving 140,000+ contractors and pros across 50+ trades, CompanyCam is a documentation-first layer that integrates with field service management, estimating, and CRM tools rather than replacing them.
PandaDoc is a cloud-based document automation and e-signature platform that helps contractors and sales teams create proposals, contracts, and quotes faster. Widely used by general contractors, roofing companies, HVAC firms, and other trades to build branded proposals from templates, collect legally-binding e-signatures, and process payments — all in one workflow. Integrates with CRMs like HubSpot and Salesforce and accounting tools like QuickBooks.
Aerie Hub provides a centralized platform for construction documentation, enabling teams to manage and share project information efficiently. It is designed for general contractors, subcontractors, and project owners seeking to streamline their document workflows.
Getting the phone to ring
Paid lead channels and marketplaces. Genuinely useful before you have referral flow, and expensive to stay dependent on — judge these on cost per booked job, never cost per lead.
Angi (formerly Angie's List / ANGI Homeservices) is the leading US home services marketplace connecting homeowners with local service professionals across 500+ categories. Formed by the 2017 merger of Angie's List (founded 1995) and HomeAdvisor (founded 1998 as ServiceMagic), and rebranded to Angi in March 2021. The platform operates a pay-per-lead model (Angi Leads), display advertising (Angi Ads), and a fixed-price instant-booking service powered by the 2018 Handy acquisition. Angi completed its spin-off from IAC on April 1, 2025, becoming an independent public company (NASDAQ: ANGI). Revenue in 2025 was approximately $1.05B (declining YoY as platform shifted to homeowner-choice lead model). As of 2025 the platform counts roughly 200,000 active service professionals across all trades.
Thumbtack is a nationwide online marketplace connecting homeowners with local service professionals across 500+ project categories. Founded in 2008 and headquartered in San Francisco, CA, Thumbtack operates a pay-per-lead model where contractors pay only for qualified leads — never a commission on completed jobs. The platform serves 4+ million customers annually, hosts 300,000+ active professional businesses, and has facilitated 90 million+ projects. Thumbtack offers AI-powered matching, professional profile pages with reviews and portfolio photos, background check and license verification badges, and integrations with ServiceTitan, Jobber, Workiz, and Google Calendar. It is strictly a lead generation and customer acquisition platform — job management, scheduling, dispatch, invoicing, and CRM must be handled in a separate FSM tool.
Full-service lead generation and digital marketing platform for home services, offering pay-per-lead, pay-per-call, and campaign-based pricing.
Trucks & equipment
GPS, maintenance intervals, and being able to answer "where's the van?" while the customer is still on the phone. Worth buying at roughly the third truck.
Samsara is a publicly traded (NYSE: IOT) connected operations platform providing AI-powered GPS fleet tracking, ELD compliance, dash cams, equipment management, and IoT telematics for physical operations industries. Founded in 2015 by the co-founders of Meraki (acquired by Cisco), Samsara serves transportation, construction, field services, and public sector fleets with a unified platform covering vehicle telematics, safety coaching, workforce management, and digital workflows. The platform integrates with 300+ third-party applications and provides an open developer API.
Verizon Connect is a fleet management and field workforce platform owned by Verizon Communications. Built from the 2018 merger of Fleetmatics, Telogis, and Verizon Telematics, it delivers GPS vehicle tracking, ELD compliance, AI-powered dashcams, route optimization, and a field service dispatch module. The flagship product, Reveal, serves construction, utilities, distribution, and trades businesses managing mobile workforces and equipment.
ClearPathGPS provides real-time GPS fleet tracking and management software for small to mid-sized commercial fleets across field service industries including HVAC, construction, landscaping, and plumbing.
What it costs, by size
A solo operator and a 40-truck company buying the same platform pay differently and use it differently. Pick your company type to see it highlighted first — each stack also lists the signals that you've outgrown it.
Solo / 2-Truck Owner-Operator
residential1–3 employees · $100K–$500K
The self-employed tradesperson or micro-crew running on personal hustle and minimal tooling. Jobs are dispatched from a phone, invoices are often paper or a basic app, and new work arrives through word-of-mouth and marketplace listings. Technology decisions are driven by cost sensitivity and simplicity, not capability gaps. The single most common gap at this stage: no formal scheduling or dispatch tool — appointments tracked in a personal calendar or text messages.
| Category | Common picks |
|---|---|
| Lead Generation / Marketplaces | Angi Quote-only get a quote TaskRabbit Quote-only get a quote |
| Field Service Management | |
| Accounting & Financial | Viewpoint Vista Quote-only get a quote Sage 100 Contractor Quote-only get a quote |
| Documentation & Communication |
Covers 3 of the 4 tools in this stack.
Picks are this archetype's typical stack where this trade has those tools, topped up with the strongest tools the trade actually has in each category.
Approximate — assumes a ~2-person company (this archetype's typical size) and one tool per category. Priced lines use each vendor's published entry price, so per-seat tools are a starting point rather than what 2 people cost. Your actual stack and headcount will change this.
You've outgrown this stack when
- →Revenue crossing $250K with repeat customer base growing, making lead-gen marketplace fees increasingly costly relative to owned relationships
- →Hiring a first technician or helper, triggering a need for payroll, scheduling visibility, and job assignment beyond the owner
- →Customer complaints about slow or missing invoices, or difficulty tracking which jobs have been paid
SMB Service Contractor
residential1-20 employees · $200K-$2M
Solo operators and small crews doing residential service/repair The single most common gap at this stage: no dedicated crm.
| Category | Common picks |
|---|---|
| Field Service Management | |
| Accounting & Financial | Viewpoint Vista Quote-only get a quote Sage 100 Contractor Quote-only get a quote |
| Lead Generation / Marketplaces |
Covers 2 of the 3 tools in this stack.
Picks are this archetype's typical stack where this trade has those tools, topped up with the strongest tools the trade actually has in each category.
Approximate — assumes a ~11-person company (this archetype's typical size) and one tool per category. Priced lines use each vendor's published entry price, so per-seat tools are a starting point rather than what 11 people cost. Your actual stack and headcount will change this.
You've outgrown this stack when
- →Hiring 5th+ technician
- →Adding second location
- →Revenue >$1M
Mid-Market Residential Trades
residential20-100 employees · $2M-$20M
Growing residential service companies with 20-100+ employees The single most common gap at this stage: disconnected marketing stack.
| Category | Common picks |
|---|---|
| Field Service Management | |
| Accounting & Financial | Sage 100 Contractor Quote-only get a quote Viewpoint Vista Quote-only get a quote |
| CRM & Sales | |
| HR & Workforce |
Covers 2 of the 4 tools in this stack.
Picks are this archetype's typical stack where this trade has those tools, topped up with the strongest tools the trade actually has in each category.
Approximate — assumes a ~60-person company (this archetype's typical size) and one tool per category. Priced lines use each vendor's published entry price, so per-seat tools are a starting point rather than what 60 people cost. Your actual stack and headcount will change this.
You've outgrown this stack when
- →Opening third+ location
- →Revenue >$10M
- →Acquiring other companies
Commercial Service Contractor
commercial25–250 employees · $5M–$50M
A commercial-focused HVAC, plumbing, electrical, or facilities service company operating under multi-year maintenance contracts with building owners, property managers, and facility directors. Revenue is recurring and agreement-based, technicians are skilled and often certified, and regulatory compliance (OSHA, EPA refrigerant, NFPA) is a real operational burden. The FSM platform is the operational core, but fleet management, safety compliance, and customer-facing portals are persistent gaps at this tier. The single most common gap at this stage: safety compliance documentation is handled manually or in disconnected tools, creating audit risk and inconsistent incident reporting across job sites.
| Category | Common picks |
|---|---|
| Field Service Management | ServiceTitan Quote-only get a quote simPRO Quote-only get a quote ServiceTrade Quote-only get a quote BuildOps Quote-only get a quote |
| Accounting & Financial | Sage 100 Contractor Quote-only get a quote Foundation Software Quote-only get a quote |
| Safety & Compliance | |
| Fleet & Equipment | |
| HR & Workforce |
Covers 2 of the 5 tools in this stack.
Picks are this archetype's typical stack where this trade has those tools, topped up with the strongest tools the trade actually has in each category.
Approximate — assumes a ~138-person company (this archetype's typical size) and one tool per category. Priced lines use each vendor's published entry price, so per-seat tools are a starting point rather than what 138 people cost. Your actual stack and headcount will change this.
You've outgrown this stack when
- →Landing contracts with large enterprise or government facility accounts that require formal ISNetworld or Avetta prequalification and documented safety programs
- →Fleet growing past 20 vehicles where fuel, maintenance, and routing costs become a measurable drag on service margin
- →Service agreement renewal rates dropping below 85%, often traceable to poor PM completion documentation and lack of customer-facing reporting
Frequently asked questions
How were these tools chosen?▾
Tools are only ever compared against others doing the same job — accounting against accounting, dispatch against dispatch. Within a job, we order by how often a tool shows up in real contractor stacks, then vendor tier, review rating, and pricing transparency. Never by who pays us. See /how-we-vet.
Are these prices accurate?▾
Where a vendor publishes pricing, we show it exactly. Where they don't, we show a sourced, dated estimate range instead of guessing — and label it as an estimate. Tools with neither are marked quote-only and excluded from the cost totals.
Why does my stack cost differ from the totals here?▾
The per-archetype totals assume one tool per category and a company sized to that archetype's typical range — your actual headcount, trucks, and tool choices will move the number.
Why isn't there one "best" tool at the top?▾
Because a single ranked list would be comparing your accounting software to your dispatch software, which tells you nothing. The decision is really a sequence: pick the platform that matches how you sell work, then fill in the roles around it.