HVAC CONTRACTORS
Accounting That Separates Service From Installation
CPA-led accounting, controller, and CFO support for HVAC contractors — built around the service and installation revenue mix, maintenance agreements, seasonal working capital, and technician economics.
Most HVAC companies are two businesses under one roof. Installation is project work with material content, a longer cycle, and margin that turns on the estimate. Service is high-volume dispatch work with labor content, immediate collection, and margin that turns on technician time. They do not behave the same way, and reporting that combines them cannot tell you which one is funding the company.
Service and installation are different businesses
Two businesses under one roof with different margins, different cash cycles, and different cost structures. Reporting that combines them obscures which one funds the other.
The practical consequence shows up in decisions: whether to add an install crew or a service technician, whether a slow install quarter is a problem or is being offset, and whether the service department is genuinely profitable once dispatch, drive time, and truck cost are charged to it.
Maintenance and service agreements
Customers pay in advance for services delivered over time. Cash received ahead of performance is an obligation of the business until the service is provided — it is not yet earned, and treating the deposit as available cash overstates both revenue and liquidity.
Agreements also concentrate cash at renewal and spread the cost of delivery across the year, so the month the money arrives and the months the work happens rarely line up.
How a particular maintenance agreement is reflected in reported revenue depends on the contract terms — what the customer is entitled to, and over what period — and is determined under the applicable accounting standards. There is no single pattern that applies to every agreement.
Seasonal working capital
Peak demand in summer and winter, troughs between. Equipment and inventory get purchased ahead of the season; payroll runs year-round.
That produces a predictable cash shape: outflow before each peak, strong collection during it, and a trough that has to be funded by what the peak produced. A forecast that does not model the shoulder seasons will look fine annually and still run short in April or October.
Technician utilization economics
Billable hours against total paid hours, drive time, callbacks, and the cost of retaining technicians through slow periods. A callback consumes a technician for a second visit with no additional revenue, so callback rate is a margin measure as much as a quality measure.
Utilization is discussed here as an operating measure for a business to track against its own history. This page does not publish benchmark or “healthy” utilization ranges — those vary by market, service mix, and how a company defines paid hours.
Trucks and inventory
Rolling stock, parts inventory on trucks, and shrinkage are real costs frequently uncaptured at the job level. Parts issued from a truck often never reach a job cost record, which makes service margin look better than it is and leaves inventory overstated on the balance sheet.
Replacement and repair mix
A shift toward repair over replacement changes revenue per call and margin structure. It is an early indicator worth reporting on, because it usually moves before it shows up in total revenue — the call count holds while the value of each call falls.
Dispatch-driven operations
A high volume of small jobs makes job-level costing harder than in project construction, and standard construction job costing does not map cleanly. Tracking every service call as a job produces detail no one uses; tracking none of it produces a service department with no measurable margin.
The workable answer is usually costing installation work at the job level and costing service by category, technician, and agreement type — different structures for two different businesses.
What the accounting work covers
- Reporting that separates service from installation
- Job-level cost tracking on installation work
- Maintenance agreement obligations tracked rather than treated as earned on receipt
- Truck inventory and parts cost reaching the work they belong to
- Reconciled balance-sheet accounts and a close with a defined end point
- Cash forecasting that models the shoulder seasons, not just the annual total
See Outsourced Accounting for the recurring work and Tax Strategy for planning around equipment purchases and entity structure.
Controller or CFO for an HVAC contractor?
If service and installation are blended in the reporting, parts cost is not reaching the work, or the close runs long, that is controller-level work — see Fractional Controller.
If the reporting is sound and the open questions are how many technicians the shoulder season supports, whether to expand service or installation, or how to fund the pre-season inventory build, that is CFO-level work — see Fractional CFO.
For the underlying construction accounting mechanics on installation work — WIP, retainage, change orders — see Construction & Contractor Accounting.
Common questions
Why does a strong summer still leave us short in the shoulder season?
Because payroll runs year-round while collections do not, and inventory for the next peak is purchased out of what the last peak produced. It is a working capital shape, not a profitability problem.
Should service and installation be reported separately?
In most cases yes. They have different margins, cash cycles, and cost structures, and blended reporting cannot show which one is funding the business.
How should maintenance agreements be handled?
Cash collected ahead of the work is an obligation until the service is delivered. Exactly how a given agreement is reflected in revenue depends on the contract terms and is determined under the applicable accounting standards.
What technician utilization should we be running?
That depends on service mix, market, and how paid hours are defined. The useful comparison is against your own trend rather than a published range.
Do we need job costing for service calls?
Usually not call by call. Costing installation at the job level and service by category, technician, and agreement type gives most HVAC companies what they need without unusable detail.
Do you provide audited or reviewed financial statements?
No. Corey Roder, CPA PLLC does not itself perform audits, reviews, or other assurance engagements. Need an audit, review, or other assurance engagement? We can help coordinate it. Corey Roder, CPA PLLC maintains referral relationships with independent CPA firms that provide these services. The assurance engagement is separately contracted with and performed by the independent CPA firm. Corey Roder, CPA PLLC can provide accounting records and schedules within the scope of its engagement.
Built by a CPA who has run a construction company
Corey Roder is a licensed CPA who founded a construction company and served as its COO and CFO, managing the financial and operational decisions of that business. Earlier in his career he worked as an auditor at Grant Thornton.
Corey Roder, CPA PLLC does not itself perform audits, reviews, or other assurance engagements. Need an audit, review, or other assurance engagement? We can help coordinate it. Corey Roder, CPA PLLC maintains referral relationships with independent CPA firms that provide these services. The assurance engagement is separately contracted with and performed by the independent CPA firm.
Who this is for
HVAC and mechanical contractors running both service and installation work, where the two sides have grown far enough apart that one set of reports no longer describes either. Typically a company with field technicians, a dispatch function, maintenance agreements in force, and installation work billed as projects.
It is usually not the right fit for a one-truck operation with no agreements and no install crew — at that size the reporting question is simpler than the work described here.
Signs you need this
- Service and installation results are combined, so you cannot tell which one funds the company
- Maintenance agreement cash is treated as revenue when it arrives rather than as work still owed
- Parts leave the truck and never reach a job or work-order cost
- The shoulder season is funded by guesswork rather than a forecast
- Technician cost per billable hour is unknown, so pricing is set by feel
- Callbacks are tracked as a service issue but never as a margin issue
- Replacement work is being displaced by repair work and the reporting has not shown it yet
Where to start
If service and installation margin, agreement obligations, or seasonal cash is not clear from your current reporting, that is worth a conversation. Start a conversation or call 469-452-7500.
Serving HVAC contractors in McKinney, Collin County, and the Dallas–Fort Worth area, and remotely across Texas and nationwide.
Further reading: Best Bookkeeping Practices for Construction Companies
Know which side of the business is funding the other
A short conversation is usually enough to tell whether the gap is the reporting split, the close, or the cash forecast.