Plumbing and Electrical Contractor Financing: Fleet, Tools and Cash Flow Between Jobs
By MercFinancial · Published 2026-10-22 · Updated 2026-10-21
Plumbing business loans and electrical contractor financing split along one line: service work pays at the door and funds through vehicle and equipment lenders, construction work pays on progress and needs a line or factoring.
Plumbing business loans and electrical contractor financing come from the same lenders that fund HVAC companies and any other licensed trade: vehicle and equipment lenders for the vans and tools, banks and private lenders for lines of credit, factoring companies for commercial receivables, and SBA lenders for buying a competitor or a shop. The structure that fits depends on which side of the trade the company works. A service plumber is paid when the water heater is in. An electrical contractor on a tenant buildout bills on progress, waits on the general contractor, and has part of every invoice held as retainage.
This guide covers how lenders underwrite service versus construction work, the progress-billing gap and the products that carry it, the fleet and equipment side, the acquisition file when you buy another contractor's book, an illustrative cash-flow case, and the mistakes that get a trades file declined.
- Plumbing and electrical contractors are eligible for SBA loans; 13 CFR 120.110 does not exclude contractors, and approval rests on the lender's credit policy.
- Service-side plumbing and electrical revenue is paid at completion, while construction-side revenue is billed on progress with retainage commonly held until the job closes.
- A line of credit or invoice factoring carries a plumbing or electrical contractor between payroll on a commercial job and the general contractor's payment.
- Vans, trenchers, bucket trucks and camera systems are financed against the asset itself, which makes the fleet and tools the easiest part of a trades file to fund.
The invoice to a general contractor is a promise to pay in sixty days, and the crew that did the work was paid last Friday.
Service trades and construction trades are underwritten differently
Lenders like plumbing and electrical contractors for the same reasons they like HVAC companies: licensed owners, non-discretionary demand, titled vehicles and resalable equipment, and customers who pay at the door for service work. What changes the underwriting is the share of revenue that comes from construction.
A service-heavy plumber or electrician shows steady daily deposits, little in receivables and a predictable payroll, and the file is usually a vehicle, equipment or working-capital conversation. A construction-heavy contractor shows large deposits weeks apart, a receivables aging with several general contractors on it, retainage on the balance sheet, and payroll that runs whether or not the pay application was approved. That file is a line-of-credit or factoring conversation first, and the underwriter asks who the general contractors are and how long they take to pay.
Most trades companies are a blend, and the strongest files break out service, maintenance and construction revenue with gross margin on each.
Progress billing, retainage and the gap a lender is asked to cover
On a commercial job the contractor bills monthly on progress, the general contractor reviews the pay application, and payment follows the owner's draw, commonly thirty to sixty days later. The general contractor also holds retainage, commonly five to ten percent of each billing, until the scope is accepted. Meanwhile the crews are paid every week.
Two products carry that gap, and they are not interchangeable.
- A business line of credit. Drawn for payroll and materials between billings and paid down when the general contractor pays. Banks write lines against a borrowing base of eligible receivables, excluding retainage. Private lenders write smaller lines on bank statements, faster and at a higher cost.
- Invoice factoring. The factor advances a share of each approved invoice, commonly in the range of seventy to ninety percent, and remits the balance less its fee when the general contractor pays. Construction receivables are harder to factor than most because of retainage, lien rights and pay-when-paid clauses, so the factors that take them are specialists. See invoice factoring versus PO financing and construction invoice factoring and retainage.
It is conditional on acceptance of the work, so banks and factors exclude it from the borrowing base or the advance. Carry it from equity or the line.
The capital that funds plumbers and electricians, product by product
- Vehicle and fleet financing for service vans, bucket trucks and flatbeds, against the title, with a down payment that is commonly higher on used units. The upfit often rides on the same loan.
- Equipment financing and leasing for sewer cameras and jetters, trenchers and boring rigs, pipe threaders, wire pullers, lifts and generators. The equipment is the collateral. 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.
- SBA 7(a) loans for buying a competitor, a partner buyout, the shop building or consolidating short-term debt. Contractors are eligible under 13 CFR 120.110.
- Unsecured term loans from private lenders, written on owner credit and deposits, for a marketing push, an estimating system, or hiring ahead of a large contract.
- Bonding capacity is not a loan, but sureties read the same financials a lender does, and a clean balance sheet with a line in place commonly raises the limits they will write.
The fleet side is covered in more depth in HVAC business loans, and the full menu is on the business funding page.
Buying a competitor's book: what the acquisition file needs
Buying a retiring plumber's or electrician's company is the most common acquisition in the trade, usually an SBA 7(a) loan with a seller note behind it, one of the business acquisition financing options lenders write most often. The lender underwrites the target's cash flow after the owner's salary and add-backs, the buyer's equity injection, license and experience, and what actually transfers: the phone number, the customer list, the maintenance agreements, the technicians, and on the construction side the backlog.
Tax returns, a current profit and loss, and a schedule of add-backs the seller can document. Lenders discount add-backs they cannot trace.
Service, maintenance and construction revenue for three years, and the top customers with their share. One property manager is one customer.
Who holds which license, how long each has been there, and how the buyer will keep them. The technicians are the asset.
Year, mileage and condition of every vehicle and major tool, with liens and payoffs. It sets collateral value and the replacement budget.
Price, seller financing, the non-compete, and how long the seller stays to hand over the accounts.
Illustrative example: a commercial job that pays in sixty days
Illustrative example: a hypothetical electrical contractor with $1,800,000 a year in revenue wins a $300,000 tenant buildout billed over four months. Job costs run about $60,000 a month, each pay application is paid sixty days after submission, and the general contractor holds ten percent retainage until the space is accepted. The contractor spends $120,000 before the first dollar arrives and carries two months of cost plus retainage throughout.
| Structure | What it covers | Cost, in general terms | Trade-off |
|---|---|---|---|
| Bank line of credit | Payroll and materials against approved pay applications | Interest on what is drawn, lowest of the three | Needs returns, a borrowing base and a clean aging |
| Construction factoring | An advance on each approved invoice, retainage excluded | A fee per thirty days outstanding, higher than a line | Fast, scales with the job, the general contractor is notified |
| Private working-capital line | Payroll, on bank-statement history | Highest of the three | Closes in days, sized to deposits rather than the contract |
The numbers are round and hypothetical. The gap is predictable from the contract terms before the job starts, which is when the structure should be arranged.
Mistakes that get a plumbing or electrical file declined
- Funding a construction job from service cash. The statements thin out, the supply house goes to sixty days, and the next lender sees a company that looks like it is losing money while it waits to be paid.
- Taking a merchant cash advance to make payroll on a commercial job. Daily remittances against receivables that pay in sixty days is the structure most likely to end in a second advance, and most factors and banks will not sit behind it.
- A receivables aging the owner cannot explain. Disputed invoices, unapproved change orders and old retainage all look like bad debt until they are labeled.
- Lien rights left on the table. Lenders and factors want to see preliminary notices sent and lien deadlines tracked, because those rights make the receivable collectible.
Where MercFinancial fits
MercFinancial is a commercial funding brokerage in Houston, not a lender, and it does not run a program for plumbers or electricians or promise an approval. It reads the file first: the split between service and construction revenue, the receivables aging and retainage, the fleet schedule and the owners' credit. It then identifies which of its more than 160 funding sources have a credit policy that fits the trade 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 a plumbing company get an SBA loan?
Yes. Plumbing and electrical contractors are not excluded by 13 CFR 120.110, so a 7(a) loan is available through any SBA lender whose credit policy accepts the trade. Lenders commonly use it for buying a competitor, a partner buyout, a shop building or consolidating short-term debt, and they want an equity injection, personal guaranties, a current master license and two or more years of returns.
How do electrical contractors finance payroll while waiting on a general contractor?
With a line of credit or invoice factoring. A bank line is drawn against approved pay applications and paid down when the general contractor pays, usually excluding retainage. A construction factor advances a share of each approved invoice and collects from the general contractor directly. Private lenders write smaller lines on bank statements for companies that cannot yet get a bank line.
Can I factor construction invoices with retainage on them?
Usually only the non-retainage portion. Factors that take construction receivables advance against the approved amount of a pay application and exclude the retainage, because it is conditional on acceptance of the work. Pay-when-paid clauses, lien rights and the general contractor's own payment history all affect whether a factor will take the account and at what advance rate.
How do I finance buying another plumbing or electrical company?
Most purchases of a retiring contractor's company use an SBA 7(a) loan with a seller note behind it. The lender underwrites the target's documented cash flow after the owner's salary, the buyer's equity injection and license, the technician roster, the fleet condition and what transfers, especially maintenance agreements and general contractor relationships. A price set before the lender has verified the add-backs is the most common reason an acquisition stalls.
What equipment can a plumber or electrician finance?
Almost anything with a serial number and a resale market: service vans and bucket trucks, sewer cameras and jetters, trenchers and boring rigs, pipe threaders, wire pullers, lifts, generators and shop equipment. Equipment lenders fund against the asset with a down payment that is commonly higher on used units, and many accept young companies when the owner's credit and trade experience are solid.
Know how a commercial job will be funded before you sign the subcontract. A funding specialist reads the contract terms, the receivables and the fleet together and tells you plainly which line, factor or lender fits. Stephanie, our AI lending assistant, pre-qualifies in 2-3 minutes with a soft credit pull that won't affect your score, or book a free 30-minute call with a funding specialist at (830) 587-5022.
Get Pre-Qualified with Stephanie Book a Free 30-Minute CallMercFinancial 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.