Quick Take
The 5-20 tech band is where HVAC software stops being a scheduling tool and starts being a margin decision. At five techs the owner still runs the board. At twenty there is an office, a dispatcher, and a July board carrying roughly 3.5 times the call volume of April.
Four platforms deserve a serious look at this size, and they split on one question: are you buying a flat-rate price book, or buying the lowest bill for a fixed headcount?
FieldEdge if flat-rate quoting is the center of the business. Roughly $100 a month for the office plus about $125 per technician, against a Coolfront-derived catalog near 30,000 repair tasks. At 20 techs that is about $2,600 a month, and the price book is the main reason to pay it.
Service Fusion if you are past ten techs and the bill matters more than the average ticket. $259 to $649 a month with unlimited users on every tier, so at 20 techs it is $649 against FieldEdge’s $2,600.
ServiceTitan at 15 to 20 techs if you are growing, multi-trade, or touching refrigerant daily. It is the only platform here with native EPA 608 usage logs and certificate expiry reminders, and it costs $245 to $500 per tech per month plus an implementation fee of $5,000 to $50,000.
Commusoft if your work is commercial planned maintenance across multiple sites. It is the only platform in this comparison built around PPM contracts and asset records per site rather than residential dispatch.
Housecall Pro is the right answer at the bottom of the band and the wrong one at the top. Jobber and Workiz drop out, and the reasons matter more than the ranking does.
I am not an HVAC contractor and I do not sell software. This draws on roughly 5,600 verified Capterra and Software Advice reviews, vendor pricing pages, and third-party cost reporting. Where a figure is an estimate rather than a published rate, I say so.
At a Glance
| Software | Starting Price | Free Trial | Capterra | Reviews | Best For At 5-20 Techs |
|---|---|---|---|---|---|
| FieldEdge | ~$100 office + ~$125/tech | Demo only | 4.2/5 | 312 | Flat-rate price book |
| Service Fusion | $259/mo, unlimited users | Demo only | 4.3/5 | 308 | Cost control past 10 techs |
| ServiceTitan | ~$245-500/tech/mo | Demo only | 4.3/5 | 339 | Growth and refrigerant compliance |
| Commusoft | Quote-gated, per license | Demo only | 4.7/5 | 211 | Commercial PPM, multi-site |
| Housecall Pro | $59/mo | 14 days | 4.7/5 | 2,741 | Membership shops at 5-8 techs |
| Jobber | $39/mo | 14 days | 4.6/5 | 1,458 | Not at this size |
| Workiz | Quote-gated | Demo only | 4.4/5 | 218 | Not at this size |
The top four are the shortlist. Housecall Pro stays in the conversation because five to eight techs is still the bottom of this band, and it is genuinely the best membership engine of the group. Jobber and Workiz appear so you can see why they stop working here.
What Changes Between 5 and 20 Techs
The five capabilities that separate an HVAC platform from a general field service tool do not change. Their weight does. Here is how each one lands once you have a dispatcher and a payroll.
Flat-rate pricing stops being a preference and becomes a measurement. At five techs you can tell yourself the price book is a nice-to-have. At twenty, a $10 miss per ticket across roughly 19,200 annual tickets is $192,000 a year that never appears as a line on any report. ServiceTitan and FieldEdge ship a book. Housecall Pro rents Profit Rhino at about $149 a month. Service Fusion, Jobber, Workiz, and Commusoft have none at any tier.
Equipment history moves from address-level to serial-level. A residential customer is not one address, it is a condenser, a furnace, and an air handler, each with a model, a serial number, an install date, and a warranty clock. At five techs a spreadsheet survives. At twenty techs and a few thousand installed systems, the question “is that compressor still under the manufacturer’s parts warranty” has to be answerable from the truck in under a minute. FieldEdge and ServiceTitan hang repair history on the unit. Housecall Pro tracks it at the address, so you know the house had a compressor replaced but not which system. Jobber has neither.
Refrigerant records become a liability with a date on it. Anyone recovering or charging refrigerant needs a certificate on file and a usage log, and records stay on file for three years. The A2L shift to R-454B and R-32 raises what that log has to capture. Only ServiceTitan handles this natively, with EPA 608 forms, certificate expiry reminders, and A2L logs. FieldEdge tracks certifications without usage. Housecall Pro gets partway with custom fields. The rest leave it on paper in the van, which is exactly where an audit will not look.
Membership billing has to run without a human. An HVAC maintenance agreement needs four things to happen on their own: schedule the tune-up, charge the card on file, remind the customer before renewal, and retry a failed charge instead of letting the agreement lapse. At twenty techs and 1,500 agreements, one missed retry a week is a real revenue line. Housecall Pro is the strongest of the generalist group here. Commusoft is built around this for commercial contracts, with SLA tracking on top. Service Fusion is the weak spot, with reviewers saying they cannot see a full month of maintenance jobs on one screen.
Seasonal dispatch stops being manageable by hand. Summer call volume runs about 3.5 times spring volume. A 20-tech shop absorbing that without route density and a way to rank an emergency above a tune-up burns drive time it cannot bill. ServiceTitan and FieldEdge do this best. The generalists route acceptably and prioritize poorly.
The Crossover Math
This is the table that decides the band. Monthly subscription only, before payment processing, using published rates where they exist and user-reported rates where they do not:
| Platform | 5 techs | 10 techs | 20 techs |
|---|---|---|---|
| Service Fusion (unlimited users) | $259 | $399 | $649 |
| Housecall Pro (MAX + price book + GPS) | ~$548 | ~$648+ | Not the fit |
| FieldEdge ($100 office + $125/tech) | ~$725 | ~$1,350 | ~$2,600 |
| ServiceTitan ($245-500/tech) | ~$1,225-2,500 | ~$2,450-5,000 | ~$4,900-10,000 |
Three things fall out of that table.
FieldEdge passes Service Fusion’s Plus tier at about three techs and its Pro tier at about five. If the only question were the bill, Service Fusion would win the entire 5-20 band once you are past a handful of trucks, and it would win it by a wide margin at 20 techs: $649 against $2,600 is roughly $23,400 a year.
That gap is real, and it is still not the whole answer, because Service Fusion has no price book and no refrigerant log. The subscription saving at 20 techs is $23,400 a year. One price book that moves the number on a ticket by $10, across roughly 19,200 tickets, is worth about $192,000. The cheap platform is only cheap if the shop can quote the same work on it.
Housecall Pro’s row stops being competitive near ten techs. At $299 for MAX plus $149 for Profit Rhino plus roughly $20 per van for GPS, ten vans is about $648 before any per-user fee above the plan’s included seats, and the platform still has no serial-number equipment records.
ServiceTitan’s range is wide because it is quote-gated and priced per technician. Even the bottom of its range is above every other row at every size in this band, which is why the argument for it has to be capability rather than cost.
1. FieldEdge, The Flat-Rate Price Book
Starting price: ~$100/mo office + ~$125/tech (quote-gated, user-reported) Capterra: 4.2/5 from 312 reviews, with customer service at 4.4 and value at 3.9 Free trial: Demo only
FieldEdge is the HVAC-native option and the only one in this comparison whose price is justified by a single feature. It runs the old Coolfront library of roughly 30,000 repair tasks, ties into Carrier and Bryant equipment data, and works from the truck. A tech quoting a blower motor gets a number with margin attached instead of a guess.
Around that sit serial-number equipment records, PM service agreements, an offline-capable mobile app, and the deepest QuickBooks integration here. For a shop whose constraint is the quote-to-cash flow rather than lead generation, that stack is the product.
The price is the objection, and it compounds with headcount in a way that is easy to underestimate. Five techs runs about $725 a month. Ten is about $1,350. Twenty is about $2,600, or roughly $31,200 a year before a setup fee that runs $500 to $5,000. Reviewers say it plainly. One wrote: “It is VERY expensive per month per user.”
Support earns real praise, and the dispatcher view is the feature people name first. Dan O. wrote: “Dispatchers love see where the techs are.” Jacki W. was more direct: “Online Support is PHENOMENAL.” The complaints cluster on the mobile app and accounting sync. Carl K. called it “glitchy accounting integration, mobile app disappointing,” and several other verified reviewers describe synchronization delays in poor reception areas, which is the specific failure mode that matters when a tech is in a mechanical room with one bar of signal.
On refrigerant, FieldEdge tracks certifications but not usage. That is a partial answer to an EPA 608 obligation, and if you handle refrigerant daily it is worth asking the vendor exactly what the audit trail looks like before you sign.
Pick it if flat-rate pricing is non-negotiable and you can carry roughly $2,600 a month at 20 techs. Skip it if your techs still quote from a printed book, because you will pay HVAC-native prices for a workflow you have not adopted.
2. Service Fusion, The Cost-Control Answer Past 10 Techs
Starting price: $259/mo Starter, $399 Plus, $649 Pro, unlimited users on every tier Capterra: 4.3/5 from 308 reviews, with value for money at 4.2 Free trial: Demo only
Service Fusion is the only major platform in this category that publishes its prices and charges no per-tech fee. Starter is $259 a month no matter how many logins you hand out. At two trucks that is expensive. At ten it is competitive. At twenty it is $649 against FieldEdge’s $2,600, and the argument makes itself.
There is a second reason it fits this band specifically. Seasonal hiring is the norm in HVAC, and a shop that adds four trucks in June and sheds them in October does not want to renegotiate a per-user contract twice a year. A flat fee absorbs that.
What you buy is cost control, not ticket growth. There is no flat-rate price book and no plugin marketplace to rent one from, so line items are built by hand or the shop runs a separate tool. There are no refrigerant records at all. PM scheduling is the weakest of the group, with reviewers saying they cannot pull a full month of maintenance work onto one screen, which is a real problem for a shop trying to grow agreements toward a thousand of them. Reporting draws fire too. Pam W. called it “useless,” and Anthony S. described the platform in two words: “very slow.”
The value score is its best number, 4.2 out of 5 against ServiceTitan’s 3.8, which is what you would expect from a platform selling predictability rather than capability.
Pick it if you are at ten techs or more, hire seasonally, and want a bill that does not move when you add a truck. Skip it if you plan to sell maintenance agreements seriously or you quote repairs flat-rate, because both workflows will fight you.
3. ServiceTitan, The Capability Ceiling
Starting price: quote-gated, ~$245-500/tech/mo (Starter, Essentials, The Works) Capterra: 4.3/5 from 339 reviews, with value for money at 3.8, its lowest sub-score Free trial: Demo only
ServiceTitan is the category leader and it enters this band for real around 15 techs. Below that you are paying for capability you have not grown into yet. At 15 to 20 techs, growing, possibly adding plumbing or electrical, the feature set stops being aspirational.
Refrigerant management is the underrated reason. ServiceTitan handles EPA 608 forms, certificate expiry reminders, and A2L usage logs natively, which no other platform in this comparison does. At twenty techs charging refrigerant daily, that is a compliance obligation being met by software instead of by a binder. FieldEdge tracks certificates without usage. Everyone else in this article leaves it on paper.
The flat-rate price book is the other one, with Good/Better/Best tiers and a task library that runs into the thousands. Serial-number equipment tracking and PM membership contracts are both native rather than bolted on.
Then there is the bill, and the reviews are blunt about it. Jeff Y.: “The price is extremely high and the training support is absolutely horrible.” Erik J.: “I was not informed I was signing a 2-year contract.” Edward K. put the whole argument in one line, calling it “not worth five times the cost of Housecall Pro.”
The contract and implementation terms deserve to be read before anything else. Implementation runs $5,000 to $50,000, the stated term is 12 months and reviewers repeatedly describe being locked into two years, and early termination complaints against the company have run as high as $39,375. On Capterra, 339 reviewers rate it 4.3/5 while value for money sits at 3.8, which is the gap in one number.
The positives are not marketing copy either. Dominic C. wrote that “from dispatch to reporting, it creates clarity and accountability at every level,” and another verified reviewer said it “encompasses everything you could need for your business.”
Pick it if you are at 15 to 20 techs, growing, possibly multi-trade, and refrigerant documentation is a daily operational requirement. Skip it if you are at five to ten techs, because the value score already tells you what the first year feels like.
4. Commusoft, The Commercial PPM Specialist
Starting price: quote-gated, per license (estimated $10-100/mo per user), 12-month contract Capterra: 4.7/5 from 211 reviews, with customer service at 4.8 Free trial: Demo only
Commusoft is the one platform here built for commercial work rather than residential dispatch, and that makes it a genuine contender in a band where most comparisons ignore it. Planned preventive maintenance, contract and SLA tracking, and asset records across multiple sites are the core of the product, not modules attached to it. The research notes on this category list its natural fit as commercial contractors running 5 to 20 vehicles.
If your revenue comes from maintaining rooftop units and split systems across a portfolio of commercial sites, the questions that matter are different from a residential shop’s. Which assets are under contract at this site. Which SLA clock is running. What is due this quarter across the whole portfolio. Commusoft answers those natively, and its 4.7/5 rating with customer service at 4.8 is the strongest support score in this article.
The trade-offs are structural. There is no flat-rate price book, so residential repair quoting is not what it is for. There is no refrigerant management. The contract runs 12 months. And its center of gravity is British and European, which shows in the workflows and in the user base. American residential shops will find the fit awkward, and the pricing is quote-gated per license.
Pick it if your work is commercial planned maintenance across multiple sites with SLA obligations. Skip it if you run residential service calls, where the price book and dispatch tools you need are not here.
5. Housecall Pro, Right at the Bottom of the Band
Starting price: $59/mo Basic, $149 Essentials, $299 MAX (annual billing) Capterra: 4.7/5 from 2,741 reviews Free trial: 14 days, full MAX access, no credit card
Housecall Pro is the best membership engine of the generalist group and the highest-rated platform in this article. At five to eight techs it is a legitimate answer, particularly for a shop whose growth plan is maintenance agreements rather than flat-rate repair quoting. Shops on it report running 500 to 1,000-plus members, and that recurring block is what carries an HVAC business through a mild summer.
It stops fitting as headcount climbs, for three reasons that all trace back to the same thing: the HVAC-specific parts are rented. The price book comes from Profit Rhino at about $149 a month with roughly 8,500 tasks and Good/Better/Best tiers, and it is a separate subscription from a separate company. Equipment history stops at the address, so you cannot pull the warranty status on one specific condenser. Refrigerant tracking is custom fields you build and maintain yourself.
Cost at ten techs lands near $648 a month before per-user fees above the plan’s included seats, and that is without a serial-number equipment record. Users are split in a way that has stayed consistent. One wrote: “This has got to be the easiest ‘learning curve’ I have ever experienced. Scheduling, invoicing, tracking, it all just works.” Another, more recently: “Customer service used to be great. Now you wait 25 minutes on hold and get different answers from different reps.” A third flagged accounting: “QuickBooks integration is not closed loop and is a mess.”
Pick it if you are at five to eight techs and memberships are the growth plan. Skip it if you are past ten techs or flat-rate quoting is the center of the business, because you will be paying two vendors to do one job.
What Falls Out of the Band
Jobber publishes $39 to $599 a month and rates 4.6/5 on 1,458 reviews, and at five techs it is the cheapest platform that still runs a real service business. At twenty it is the wrong tool, not because of price but because of capability. There is no flat-rate price book at any tier, no serial-number equipment history, no refrigerant log, and agreements work only in simplified form, with reviewers noting it gets awkward past roughly 300 of them. A 20-tech shop on Jobber is keeping unit history somewhere that is not Jobber.
Workiz sells a phone system and AI answering bundled with dispatch, which is a real answer for a shop drowning in inbound calls during a July heat wave. But the HVAC-specific evidence is thin, its Capterra pool has almost no HVAC voices in it, and the pricing complaints are blunt. Oleksandr C. wrote: “Deceptive pricing, hidden fees at every step.” Pricing is quote-gated, with the base estimated around $229 a month, the phone system around $100 more, and AI answering around $200 on top. At this band you are buying a call-handling product, not an HVAC platform.
What to Watch For
Annual contracts with narrow exits. FieldEdge, ServiceTitan, and Commusoft all run annual terms. ServiceTitan reviewers describe two-year locks that were not disclosed at signing, and early termination complaints have reached five figures. Ask in writing what happens if you leave after six months, and get the cancellation window in the same document as the price.
Quote-gated pricing at exactly the size where budgets matter. FieldEdge, ServiceTitan, Workiz, and Commusoft will not show you a number until you sit through a sales call. Every figure in this article for those four is user-reported or a third-party estimate. Treat them as anchors, not quotes, and re-price at 10 and 20 techs before deciding, because per-tech pricing does not scale the way the first quote suggests.
Payment processing is the biggest line nobody advertises. On $50,000 a month in card volume, processing at 2.6 to 3.5 percent costs more than every subscription in the table above. Compare effective rates rather than headline percentages, and ask what a keyed or stored-card transaction costs, because that is where the number climbs.
Implementation timing can cost you a season. FieldEdge and ServiceTitan both carry setup work, and ServiceTitan’s runs $5,000 to $50,000. Do not start an implementation in April if your busy season begins in May. A migration that lands in July costs more in lost calls than the software costs all year.
A missing price book costs more than it saves. No price book means every tech prices from memory, and the leak scales with headcount. That is the opposite of what you want at twenty techs, where the same $10 miss repeats 19,200 times a year.
More In-Depth Reviews
- Best HVAC Software 2026 Compared by Size →: All 7 platforms ranked by company size, with the full feature matrix.
- Best HVAC Software for 1-5 Tech Shops →: Where the band below this one lands, and why the shortlist is different.
- FieldEdge Review 2026 →: 4.2/5 (312 reviews). The deepest price book in the category, at a price.
- FieldEdge Pricing →: What the office-plus-per-tech model costs at 3, 10, and 20 users.
- ServiceTitan Review 2026 →: 4.3/5 (339 reviews). The capability ceiling and the contract behind it.
- ServiceTitan Pricing →: Implementation fees, term lengths, and what the tiers actually include.
- Service Fusion Review →: 4.3/5 (308 reviews). Unlimited users, and the PM scheduling gap.
- Housecall Pro for HVAC Review →: 4.7/5 (2,741 reviews). The membership engine, and the plugin it depends on.
- HVAC Software Pricing 2026 →: Hidden costs, contract traps, and negotiation notes across all 7 platforms.
How I Evaluated
This article draws on data collected through September 2026:
- Verified user reviews. Roughly 5,600 reviews across Capterra and Software Advice, read for recurring praise and recurring complaints against the five HVAC dimensions above. Quotes are from verified Capterra reviewers and are attributed in the text.
- Vendor pricing pages. Service Fusion, Housecall Pro, and Jobber publish their tiers. FieldEdge, ServiceTitan, Workiz, and Commusoft are quote-gated, so their figures are user-reported or third-party estimates and are marked as such.
- Headcount arithmetic. The crossover table is my own calculation from published and user-reported rates, not a vendor quote. It excludes payment processing, add-ons, and setup fees, all of which are broken out separately in the text.
- Free trials. Housecall Pro and Jobber both offer 14-day trials and I used them for the scheduling, quoting, and mobile flows. ServiceTitan, FieldEdge, Service Fusion, Workiz, and Commusoft require a sales call, so those assessments rest on verified reviews and public documentation.
- Market context. Roughly 114,000 heating and air-conditioning contractors operate in the US, generating about $133.7 billion annually (IBISWorld). The HVAC service software market is estimated at $1 to $1.8 billion in 2026 with growth of 10 to 17 percent a year, depending on the analyst.
No vendor paid for placement and no vendor reviewed this article before publication. Where the evidence for a claim is thin, I have said so rather than filling the gap.
FAQ
Q: What is the best HVAC software for a 5-20 tech company?
It splits on what you are buying. If flat-rate quoting is the center of the business, FieldEdge is the pick at roughly $100 a month for the office plus about $125 per technician, with a price book near 30,000 repair tasks built in. If the monthly bill is the constraint, Service Fusion charges $259 to $649 with unlimited users on every tier, which at 20 techs is $649 against FieldEdge’s $2,600. ServiceTitan fits at 15 to 20 techs if you are growing, multi-trade, or handling refrigerant daily, at $245 to $500 per tech per month plus a $5,000 to $50,000 implementation fee. For commercial planned maintenance across multiple sites, Commusoft is the only platform in the group built around contracts and per-site asset tracking.
Q: When does per-user pricing stop making sense for an HVAC shop?
The crossover against Service Fusion’s flat fee is earlier than most owners expect. FieldEdge at $100 for the office plus $125 per tech passes Service Fusion’s $399 Plus tier at about three techs, and passes the $649 Pro tier at roughly five. ServiceTitan passes $649 per month at two to three techs at the low end of its range. Past ten techs the gap compounds: at 20 techs, FieldEdge runs about $2,600 a month against Service Fusion’s $649, a difference of roughly $23,400 a year. That gap is real, but it only decides the question if the cheaper platform can still quote the work.
Q: Do I need a flat-rate price book at 10 or 20 techs?
The math gets harder to argue with as headcount grows, because the leak multiplies. Twenty techs running four calls a day across 240 working days write roughly 19,200 tickets a year. A price book that changes the number on a ticket by $10 is worth about $192,000 annually, against a $23,400 annual subscription gap between the cheapest and the most expensive option here. FieldEdge and ServiceTitan ship a book. Housecall Pro rents Profit Rhino at about $149 a month with roughly 8,500 tasks. Service Fusion, Jobber, Workiz, and Commusoft have none, so those tickets are priced from memory or from a printed book in the van.
Q: Which HVAC platforms handle refrigerant and EPA 608 compliance?
Only ServiceTitan does it natively, with EPA 608 forms, certificate expiry reminders, and A2L usage logs for R-454B and R-32. FieldEdge tracks technician certifications but not usage, which is a partial answer to a rule that requires three years of records. Housecall Pro gets partway there with custom fields you build yourself. Service Fusion, Jobber, Workiz, and Commusoft leave it on paper. At 5 techs that is messy. At 20 techs it is an audit problem, and the A2L transition raises what the log has to capture.