Working Capital for HVAC Contractors

Pick the guide that matches where your business stands right now—credit score, how urgently you need cash, and whether you're financing equipment or covering a payroll gap—then click through to the state-specific page for lenders and rates in your market.

What to know before you choose

HVAC contractors run into cash crunches in a specific pattern: you pull permits and order equipment before the job starts, but the customer pays net-30 or net-60 after completion. That gap—sometimes $20,000 to $80,000 on a commercial retrofit—is what working capital financing is built to bridge. The product you pick should match the gap you actually have, because the cost differences are significant.

The main options side by side

Product	Typical APR (2026)	Speed to fund	Best for
SBA 7(a) line of credit	8.5–11%	30–45 days	Established contractors, 640+ credit
Business line of credit (bank/online)	8.5–11% (bank); higher online	1–5 days	Recurring cash flow gaps
Equipment financing	7–10% (700+ credit)	1–3 days	Vans, HVAC units, diagnostic tools
Invoice factoring	1–5% per 30 days	24–72 hours	Slow-paying commercial accounts
Merchant cash advance	80–150% APR equivalent	24–48 hours	Last resort; very expensive

Credit score is the first fork in the road. If your FICO is 640 or above, you're in range for SBA 7(a) financing, which caps at $5,000,000 and carries the lowest rates in this table. Fair-credit borrowers (620–679) can still qualify for equipment loans and online lines of credit, but rates run 2–4 percentage points higher than what a 700+ borrower pays. Below 620, invoice factoring and bad-credit financing alternatives become the practical options—your receivables do the qualifying, not your score.

Revenue thresholds matter more than most contractors expect. Unsecured working capital lines generally require $150,000–$250,000 in annual revenue, and lenders will pull 12 months of bank statements to verify it. They're also checking your debt service coverage ratio—most want to see at least 1.25x, meaning your monthly net cash flow needs to exceed your new payment by 25%. If you're close to these floors, a secured equipment loan is easier to obtain than an unsecured line because the collateral changes the lender's risk calculation.

Equipment financing deserves its own consideration. If the cash gap stems from needing to purchase a commercial HVAC unit, a service van, or diagnostic equipment, a dedicated equipment loan typically runs 7–10% APR for contractors with good credit and funds in 1–3 days—faster than any SBA product. The equipment itself serves as collateral, which means lighter documentation requirements. Contractors who finance equipment this way also build business credit history over the loan term, which improves terms on the next draw. The full process for securing equipment financing as a contractor covers qualification tiers, down payment norms, and lender selection in detail.

Invoice factoring is underused in HVAC. Most HVAC contractors think of factoring as a construction-industry tool, but it works just as well on commercial service contracts. Factoring companies advance 80–90% of the invoice face value within 24–72 hours, then collect from your customer directly. Fees run 1–5% per 30-day period—expensive if your customer pays slowly, reasonable if they pay in two to three weeks. It's worth running the math against a line of credit draw before assuming one is cheaper.

What trips people up most often is applying for the wrong product under time pressure. A contractor waiting on a $45,000 invoice who takes a merchant cash advance at an 80–150% APR equivalent could have factored that same invoice for a fraction of the cost. Before you apply anywhere, understand the specific qualification requirements for HVAC business financing—knowing the exact revenue, credit, and time-in-business thresholds for each product keeps you from burning a hard credit inquiry on a product you won't qualify for.

State-level lender availability, licensing rules, and demand seasonality all affect which products are most accessible where you operate. Use the state guides below to find lenders and rate ranges specific to your market.