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Successful HVAC operators manage working capital through: (1) maintenance contract revenue — monthly recurring revenue that smooths seasonal peaks and valleys; (2) supplier payment terms — negotiating Net-30 or Net-60 terms with major suppliers to extend effective cash conversion cycle; (3) factoring commercial receivables — selling outstanding commercial invoices to a factoring company for immediate cash; (4)…

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HVAC Working Capital Guide

Timing, reserves, maintenance contracts, and the annual capital cycle strategy.

Jump to: Timing Strategy · Reserve Building · Maintenance Contracts · Capital Cycle

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Chapter 1

The Timing Effect — Why This Is Everything

The same HVAC company, same owner, same credit, same business — qualifies for dramatically different advances depending on which 3 months are in the review window. This is the most important insight in HVAC funding:

Aug/Sep/Oct
$108,000
Best window
Jun/Jul/Aug
$90,000
Good window
Nov/Dec/Jan
$42,000
Shoulder season
Jan/Feb/Mar
$14,000
Avoid this window
The rule: Apply in August, September, or January/February (post-heating). These are the two windows where peak-season statements are in your trailing 3-month review window.

What to Do If You Must Apply in the Dead Season

Chapter 2

Off-Season Reserve Formula

Formula: Monthly overhead × dead season months = reserve target

Example: $22,000/month overhead × 4 dead season months = $88,000 reserve target

The 15% Peak Transfer System

In each of your 4 peak months (June, July, August, December), transfer 15% of gross deposits to a dedicated off-season reserve savings account on the 1st and 15th of the month.

$75,000/month × 15% × 4 peak months = $45,000/year building toward your reserve. After 2 years = $90,000+ off-season reserve.

With a funded reserve, your MCA applications move from survival-driven (March desperation) to growth-driven (August strategic). Growth applications get better rates. Desperation applications get worse rates.
Chapter 3

Maintenance Contract ROI

Maintenance contracts are the structural fix to HVAC seasonality. Each signed contract creates monthly recurring revenue that flows in regardless of season.

Contracts SignedMonthly RecurringAnnual RecurringDead Season Coverage
50 contracts @ $25/mo$1,250$15,0005.7% of $22K overhead
100 contracts @ $25/mo$2,500$30,00011.4% coverage
200 contracts @ $25/mo$5,000$60,00022.7% coverage
400 contracts @ $25/mo$10,000$120,00045.5% coverage

Each contract also generates an average 2–3 service calls per year. At $150–$250/call, 200 contracts = $60,000–$100,000 in additional annual service revenue.

Chapter 4

The HVAC Annual Capital Cycle

TimingActionPurpose
August/SeptemberApply for MCA using peak AC-season statementsBest window: highest advance, lowest rate
Oct–FebruaryUse advance for equipment, hiring, pre-season prepInvest in next peak before it begins
Feb–MayLower-revenue months cover part of daily paymentGradual repayment from baseline
June–AugustPeak season deposits rapidly repay the balanceMCA fully repaid by September
AugustCycle repeats — now with a bigger businessGrowth compounds year over year

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Frequently Asked Questions

What working capital strategies do successful HVAC companies use?

Successful HVAC operators manage working capital through: (1) maintenance contract revenue — monthly recurring revenue that smooths seasonal peaks and valleys; (2) supplier payment terms — negotiating Net-30 or Net-60 terms with major suppliers to extend effective cash conversion cycle; (3) factoring commercial receivables — selling outstanding commercial invoices to a factoring company for immediate cash; (4) timing MCA renewals — renewing advances in high-revenue months to get larger amounts at lower rates; (5) keeping personal and business finances fully separated so business bank statements accurately reflect business performance.

How does an HVAC company build a maintenance contract base?

A maintenance contract base is the most valuable cash flow tool an HVAC company can build. Start by converting every service call customer with equipment over 5 years old into a maintenance plan conversation. Pricing: $15–25/month per residential unit, $50–150/month per commercial unit. At 100 residential contracts, that is $1,500–$2,500/month in fully recurring, smooth revenue that exists independent of seasonal demand.

What is the HVAC cash conversion cycle and how does it affect funding needs?

The HVAC cash conversion cycle is the time between when you spend money (materials, labor) and when you receive payment. For residential work paid at job completion, the cycle is 1–5 days. For commercial work paid Net-30, the cycle is 30–45 days. For larger commercial contracts with milestone billing, the cycle can be 60–120 days. The longer the cash conversion cycle, the more working capital a business needs to carry at any given time.