HVAC Business Loans: Trucks, Equipment and Working Capital for Mechanical Contractors

By MercFinancial · Published 2026-10-22 · Updated 2026-10-21

HVAC business loans are routinely written: vehicle lenders fund the vans, equipment lenders fund the tools, lines of credit carry parts and seasonal payroll, and SBA lenders fund acquisitions and shop buildings.

HVAC business loans are among the more routinely written files in small-business lending, because banks, SBA lenders, vehicle and equipment lenders and private working-capital lenders all fund mechanical contractors. The capital usually goes to service vans and box trucks, install and diagnostic equipment, a line of credit for parts and shoulder-season payroll, and SBA term loans for a shop building or the purchase of a competitor. Which lender writes which piece depends on the age of the company, its license and insurance, and how revenue splits between service calls, replacements and new construction.

This guide covers what underwriters like about HVAC contractors and what they check, the products that fund each need, the documents a strong file carries, an illustrative comparison of three ways to replace part of a fleet, and the mistakes that cost contractors the better offer. It is written for owners of one-van shops through multi-crew service companies.

An HVAC lender reads the fleet schedule, the license and the shoulder-season bank balance before it reads the tax return.

What lenders like about HVAC contractors, and what they weigh

Lenders like HVAC contractors for reasons that show up in the bank statements. Heating and cooling is non-discretionary: a failed compressor in July or a dead furnace in January gets fixed whatever the economy is doing. Service and replacement work is paid at completion, so a service-heavy company carries little in receivables. The assets a contractor buys are titled vehicles and resalable equipment, which a lender can take as collateral.

What an underwriter weighs is more specific.

• Revenue mix. Service, maintenance agreements and replacements read as steady and fast-paying. New-construction and large commercial work is billed on progress and subject to retainage, and a company that is mostly new construction is underwritten as a different credit.
• Seasonality. Lenders look at the lowest three months of deposits, not the best three, and at whether the owner carried payroll through a mild spring without an advance.
• Licensing, insurance and bonding. The state mechanical or contractor license, EPA Section 608 certification on the technicians, general liability and commercial auto coverage, and any license bond. A lapsed license is a decline at most sources.
• Customer concentration. A residential service company with thousands of customers has none. A company that works mostly for one builder or property manager has a concentration the lender will price.
• Owner experience and the second-in-command. A licensed owner who also runs dispatch and the books is a key-person risk. Lenders like to see a service manager or a licensed partner.

The capital that funds an HVAC company, product by product

Five kinds of funding source write HVAC files, and most companies use two or three of them over time.

• Vehicle and fleet financing. Service vans, box trucks and upfits are financed against the title. Lenders commonly ask for roughly ten to twenty percent down on a used unit and less on new, and many finance the shelving and wrap when they are on the same invoice. The mechanics are in commercial truck and fleet financing.
• Equipment financing and leasing. Recovery machines, vacuum pumps, sheet-metal fabrication equipment and diagnostic tools. The equipment secures the loan. Equipment placed in service in the tax year may be expensed under Section 179, subject to limits and the owner's circumstances, which a tax adviser should confirm. See equipment financing and Section 179.
• Business lines of credit. A revolving line drawn to stock condensers and furnaces before the season, to carry payroll through the shoulder months, and to float commercial progress billings. Banks write them on tax returns and a borrowing base. Private lenders write them on bank statements at a higher cost and a faster close.
• SBA 7(a) and 504 loans. For buying a competitor, a partner buyout, the shop building, or refinancing short-term debt into one long-term payment. Contractors are eligible under 13 CFR 120.110, and 7(a) lenders want an equity injection on a purchase and personal guaranties from the owners.
• Unsecured term loans. Private lenders write unsecured business loans on owner credit and deposit history for a marketing push, a dispatch system or an inventory build when the company does not want a lien on the fleet.

Consumer financing programs, where the homeowner finances a replacement system through a third party, are a revenue tool rather than business capital. Lenders notice when a company offers one because it steadies replacement revenue.

What a strong HVAC file looks like

Have these ready and the placement moves in days rather than weeks.

Illustrative example: three ways to replace three service vans

Illustrative example: a hypothetical residential HVAC company with $2,400,000 a year in revenue runs seven vans. Three are past 200,000 miles, and the owner wants to replace them before summer at about $65,000 each upfitted, $195,000 in total, while keeping cash for the pre-season inventory build.

The numbers are round and hypothetical. Vans are the easiest asset in an HVAC file to finance, so most contractors keep them on titled loans or a lease and save unsecured capacity for the things nobody takes as collateral.

Mistakes that cost HVAC contractors the better offer

• Buying the vans with cash before the line is in place. Draining the operating account in April leaves the statements thin in the months a lender reads hardest.
• Stacking short-term advances through a slow spring. Daily remittances on two or three advances are the most common reason an otherwise fundable contractor cannot get a bank line.
• Letting the license, insurance or entity name drift. A license held personally while the loan is in the LLC's name stops a file at verification.
• Carrying commercial retainage on the operating account. Contractors who take on construction work without a line or factoring end up funding the general contractor's retainage out of service cash. The structures for that side of the trade are in plumbing and electrical contractor financing.
• Adding revenue at falling margins. Lenders read gross margin by revenue type. A company that grew by underpricing commercial bids looks riskier at $3,000,000 than it did at $2,000,000.

Where MercFinancial fits

MercFinancial is a commercial funding brokerage in Houston, not a lender, and it does not run an HVAC program or promise an approval. It reads the file first: the license and insurance, the revenue mix, the fleet schedule, the statements and the owners' credit. It then identifies which of its more than 160 funding sources have a credit policy that fits a mechanical contractor and the structure in question, places one file with those sources, and compares the offers side by side. Availability of any product depends on the funding source, and when nothing fits yet, you are told that plainly with what would change the answer. Stephanie, the lending assistant, pre-qualifies a request in minutes with a soft credit pull, and a specialist call is free. The wider picture is on the HVAC, plumbing and electrical contractor funding hub.

Frequently Asked Questions

Can an HVAC company get an SBA loan?

Yes. Contractors are not on the SBA's list of ineligible businesses in 13 CFR 120.110, so an HVAC company can apply for a 7(a) loan through any SBA lender whose credit policy accepts the trade. Lenders typically use 7(a) for buying a competitor, a partner buyout, a shop building or consolidating short-term debt, and they want an equity injection, personal guaranties and a current license.

How do I finance HVAC service vans and trucks?

Through a vehicle or fleet lender, which finances each van against its title. Expect a down payment, commonly higher on used units, and a term of several years. Many lenders roll the upfit, shelving and wrap into the same loan when they appear on the dealer invoice. A fleet lease is the alternative when the company wants a lower payment and plans to turn vehicles on a schedule.

Can a new HVAC company get a business loan?

Often, on a narrower menu. A company under two years old usually funds its first vans and tools through vehicle and equipment lenders, which lean on the collateral and the owner's personal credit and trade experience. Bank lines and SBA working-capital loans commonly wait for two years of returns. A licensed owner with cash down reads well to the lenders that write startups.

How do HVAC companies cover payroll in the slow season?

Most use a business line of credit, drawn in the spring and fall shoulders and paid down in the summer and winter peaks. Banks write lines on tax returns and a borrowing base. Private lenders write them on bank statements, faster and at a higher cost. Maintenance agreements billed through the year flatten the cycle and make the line easier to get.

What do lenders check on an HVAC business loan application?

The state license and insurance, the mix of service, replacement and construction revenue, twelve months of bank statements with attention to the lowest months, the fleet and equipment schedule, the owners' credit, and any existing advances or liens. Vehicle and equipment lenders focus on the asset and the down payment. SBA and bank lenders add tax returns, a balance sheet and the purpose of the loan.

MercFinancial is a commercial funding brokerage in Houston, Texas. MercFinancial is a broker, not a lender: every loan is made by a third-party funding source, every request is subject to that source's underwriting and credit approval, and loan amounts, advance rates, interest rates, terms, fees, collateral and guaranty requirements vary by funding source and borrower and are not guaranteed. Nothing here is a commitment to lend or an offer of credit, and financing is for business purposes only. Any example in this guide is hypothetical and illustrative; actual terms and outcomes vary. Financing availability for any business depends on the funding source's own policies, the borrower's qualifications and applicable state and federal law; nothing here is legal, tax or financial advice. This guide is educational only and is not legal, tax, accounting or investment advice.