Quick answer
Plumbers typically borrow for drainage and excavation equipment, service vehicles, hot water and fixture stock, and working capital while strata managers, insurers or builders take weeks to pay. Equipment finance is usually the cheapest route for gear, invoice finance or a line of credit suits slow-paying accounts, and property-secured loans cover larger moves like buying another business. Banks lend to established plumbers; non-bank lenders fill the gaps quickly.
Key points
- A maintenance plumber, a new-build subcontractor and a civil drainage contractor have very different cash cycles and need different finance
- Drainage equipment like jet rodders, CCTV cameras and vacuum units usually fits equipment finance, secured by the gear itself
- Victorian plumbers now buy compliance certificates that expire 12 months after purchase, so bulk-buying ties up cash for nothing
- Plumbing is named in the ATO's building and construction definition, so many plumbing firms lodge a TPAR each August, and lenders may ask about it
It’s 6.40 on a winter morning and three customers have no hot water. You have two units on the shelf, the third has to come from the supplier on account, and the strata job you finished last month still hasn’t been paid. Every plumber knows a version of this day. The work pays well; the timing of the money is what bites.
Plumbing finance is rarely about rescuing a struggling business. It’s about matching funding to how your particular plumbing business earns.
Which kind of plumbing business are you?
Lenders, and the right loan, depend heavily on where your revenue comes from. Most firms fit one of three patterns, or a blend.
The service and maintenance plumber. Blocked drains, leaking taps, burst pipes, hot water replacements, gas appliance work. Jobs are small and frequent, and many are paid on the spot. Cash flow looks healthy in the bank statements, which lenders like. The pressure points are stock (hot water systems are expensive to keep on the shelf) and accounts with strata managers, property managers and insurers, which can stretch to 45 or 60 days.
The new-build subcontractor. Rough-in and fit-off for builders on housing estates and unit blocks. Bigger invoices, progress-style billing and exposure to the builder’s own cash problems. If a builder falls over, a plumbing subbie can be left with unpaid claims. Lenders will ask how many builders you work for and how concentrated the revenue is.
The civil and drainage contractor. Sewer and stormwater connections, excavation, pipe relining, commercial drainage. Heavy equipment, crews and longer contracts. Borrowing here leans on equipment finance and, for larger jobs, contract-based funding.
Knowing which one you are tells you which section below matters most.
What do plumbers borrow for, and what fits?
| What you need | Usual fit | Why |
|---|---|---|
| Ute or van with racking and a hot water cage | Chattel mortgage | The vehicle secures the loan, so the cost is usually lower than unsecured debt |
| High-pressure jetter, drain camera, pipe relining kit | Equipment finance | Gear with a resale market is easy for lenders to secure |
| Vacuum excavation truck or mini excavator | Equipment finance or truck finance | Big-ticket items spread over the working life of the machine |
| Hot water and fixture stock | Business line of credit | Draw when you restock, repay as jobs are invoiced |
| Waiting on strata, insurer or builder invoices | Invoice finance | Unlocks most of an invoice now, repaid when the debtor pays |
| Buying a competitor’s maintenance book | Business acquisition loan, often property-secured | Larger sum, longer term, assessed on the contracts you inherit |
Our invoice finance calculator shows how much a debtor book might release and roughly what it costs in dollars over the period you’d use it.
How do lenders size up a plumbing business?
Banks look for a couple of years of profitable trading, low existing debt, clean tax affairs and preferably property security. For an established firm with all of that, a bank is often the cheapest money and well worth applying to first.
Non-bank lenders tend to start from the bank statements and the debtor ledger. A few things count heavily:
- Who owes you money. An aged debtors list full of large strata companies and insurers looks very different from one full of individual homeowners 90 days overdue.
- How long people take to pay. Your debtor days figure shows whether slow payment is normal for your mix or a growing problem.
- Licence status. A current licence in the classes you work in (water, sanitary, drainage, gasfitting and so on) proves the income is legitimate.
- ATO position. Plumbing businesses that grew quickly often fall behind on BAS. A payment plan doesn’t rule you out, but hiding a debt will.
Short on time and your bank has gone quiet? Send us the basics; a lending specialist picks it up, and enquiring leaves your credit file alone.
Two compliance details that affect plumbing cash flow
Victorian compliance certificates now expire. In Victoria, a licensed plumber must issue a compliance certificate when the total value of certain plumbing work, including materials and labour, goes over $750. Since the Building and Plumbing Commission took over from the Victorian Building Authority on 1 July 2025, certificates bought from 22 September 2025 onwards expire 12 months after purchase. Businesses that used to buy a year or more of certificates in one hit are now locking cash into something with a use-by date. Buying closer to need is a small but genuine working capital win.
The TPAR keeps your subcontractor payments on the record. The ATO’s definition of building and construction services specifically includes plumbing. If most of your income or activity is in that area, you report what you paid contractors through a TPAR (taxable payments annual report). The deadline is 28 August, and paper forms are no longer accepted. Lenders sometimes ask whether you lodge one, particularly if you use subcontractors heavily. An up-to-date TPAR alongside up-to-date BAS lodgments signals a business that keeps its paperwork in order.
When are plumbers busiest, and what risks do lenders weigh?
Demand moves with the weather. Winter brings burst pipes and failed hot water systems in the southern states, and stock needs to be on hand before the cold snap, not after. Wet seasons bring blocked stormwater and flooded drains. The new-build pipeline follows interest rates and approvals, so subcontract work can dry up for a few months with little warning.
Lenders also weigh:
- Builder concentration, for subcontractors working mostly for one or two builders
- Insurance work dependence, where a panel change can remove a big revenue stream overnight
- Equipment balloon payments stacked to fall due in the same year
- Personal guarantees, which most lenders will want from directors of a plumbing company
Documents that speed up a plumbing loan
- Plumbing licence number and classes, and gasfitting licence if relevant
- Business bank statements: a quarter’s worth for small requests, up to a year for bigger ones
- An aged receivables report listing each debtor and how overdue they are
- BAS lodgments and an ATO portal statement
- Equipment quotes or the tax invoice for what you’re buying
- Recent company accounts and tax returns for larger loans or bank applications
- Any maintenance or panel agreements that show recurring work
Example: a maintenance plumber growing into drainage
Invented for illustration; no real business. A Melbourne plumbing company with four vans does mostly maintenance work for strata managers and real estate agencies. Turnover is steady, but around $110k is normally tied up in invoices aged one to two months. The owners want to add a drain relining service, which needs about $85k of equipment, and they don’t want to drain the account that pays wages.
The bank is supportive yet won’t move until the accountant finalises this year’s figures. Rather than wait, they put the relining kit on equipment finance, secured by the gear, and set up invoice finance over the strata ledger so slow payers no longer dictate wage week. They also stop buying certificates in bulk. Within a quarter, the new service is booked out and the bank conversation resumes with stronger figures.
The next step for your plumbing business
Whether it’s a jetter, a van, a shelf of hot water units or a debtor book that won’t pay on time, a workable funding structure almost always exists. Much of what comes to us is from plumbing and drainage firms whose bank was slow or simply couldn’t fit them in.
Asking costs nothing and takes around a minute, and it leaves your credit history exactly as it was. Nobody auctions your details to a crowd of funders. Someone who understands trade businesses reads it personally and phones you. Accuracy helps us most: give the real turnover, the purpose and your deadline, and the first option we put forward is far more likely to fit.
Frequently asked questions
Can a plumber get a business loan with a new ABN?
Equipment finance for a ute or van is often available to newly self-employed plumbers, particularly with a deposit or a good personal credit history. Unsecured working capital loans usually want at least six months of business bank statements, though some lenders go shorter for licensed trades.
How do I finance a drain camera or jet rodder?
Most plumbers use equipment finance such as a chattel mortgage, with the machine as security. Lenders generally prefer recognised brands with a resale market. Used equipment can be financed too, often with a shorter term.
What can I do about strata managers and insurers paying slowly?
Invoice finance lets you draw most of the value of approved invoices early and repay when the customer pays. It works best when your debtors are reliable organisations, which strata companies and insurers usually are, even when they're slow.
Do lenders care about my plumbing licence?
Yes. A current licence in the right classes shows you can legally do and certify the work that produces your income. Lenders may ask for your licence number, and some check it against the state register.
Will my bank lend to my plumbing business?
If you've traded profitably for a couple of years with clean books and some security, a bank is a sensible first call and is often the cheapest lender available. If the answer is no or the timeline is too long, non-bank lenders assess plumbing businesses on bank statements and debtor quality.
Can I borrow to buy another plumbing business?
Yes. Acquisitions are usually funded with a mix of the buyer's equity, property-secured lending and sometimes vendor finance. Lenders look closely at the maintenance contracts and repeat customers you'd be inheriting.