How to Start a Welding Business: 6 Steps to Strengthen Your Idea

How to start a welding business in Australia comes down to a handful of moves: pick your niche, choose a structure, register your ABN, check whether your work needs a state building licence, get insured before your first hot job, and put written terms in front of every customer. Get those right and you’ll dodge the mistakes that sink most new welding and fabrication shops in year one.

Here’s the honest bit. Most welders are brilliant on the tools and allergic to paperwork. That’s fine right up until a builder sits on a $20,000 invoice, or a site manager asks for your insurance certificate and you don’t have one. This guide covers the paperwork side, minus the overwhelm.

How to start a welding business: the 9 steps

Short on time? Here’s the whole job on one screen. Each step links to the detail further down.

1. Pick your niche and work out a charge-out rate that covers your real hours.
2. Decide how you’ll fund your gear: cash, a chattel mortgage, a lease or a loan.
3. Choose a structure. Sole trader to test the water, a company once you’re on construction sites.
4. Register your ABN, business name and, at $75,000 turnover, GST.
5. Check your state licence rules, including labour hire licensing if you supply welders to other shops.
6. Set up fume extraction, risk assessments and hot work procedures.
7. Get public liability cover before your first paid job, and workers comp before your first hire.
8. Put written terms in front of every customer, and learn your security of payment rights.
9. Claim your Google Business Profile and start posting real jobs.

Should you contract first or start a welding business straight away?

Plenty of welders test the market by picking up ABN work for one or two shops before they build a brand. That’s smart. Just know what you’re signing up for at each stage.

Path	What you get	What catches people out
Stay employed	Steady pay, super, leave, no admin	Your earnings are capped by someone else’s rates
Contract on an ABN	Higher hourly rate, choose your jobs	Working mostly for one shop can bring in the personal services income rules, which limit what you can claim
Run your own welding business	Control over pricing, customers and growth	You own the admin, the cash flow and the risk

Our take? Contracting is a good bridge, but don’t stay on it by accident. If 80% or more of your income comes from one client, the tax rules can start treating that income much like wages. That’s usually the sign to either go all in or go back on the payroll.

Which type of welding business should you start?

A welding business fabricates, repairs or modifies metal for other people. That covers a lot of ground. Your model decides your customers and costs. Most importantly, it decides your licensing and insurance risk, so pick it first.

Most founders assume they’ll “do a bit of everything”. In practice, the welders who get traction fastest pick one lane and get known for it. You can add services later.

Welding business idea	Typical customers	Setup	Licence and risk level
Mobile repairs	Farmers, trailer and ute owners, small manufacturers	Van or trailer rig, generator	Lower, unless you work on homes
Workshop fabrication	Builders, landscapers, homeowners (gates, frames, trailers)	Industrial or light industrial premises	Moderate; zoning and fume extraction matter
Structural and site welding	Builders, head contractors, mines	Mobile rig plus site inductions	Higher; building licences, AS/NZS 1554 and site paperwork
Specialist (pipe, stainless, aluminium)	Food, water, engineering firms	TIG gear, coded welders	Higher; consider professional indemnity
Labour supply	Other fabrication shops needing overflow welders	Minimal gear, strong paperwork	High on paperwork; labour hire licensing applies in some states

Working out how to start a fabrication business rather than a pure welding one? The steps are the same. The difference is that fabrication shops carry more stock and more design risk, so the specifications clause further down matters even more.

Want the quick version of how to start a welding business from scratch? Watch this first, then come back for the legal detail.

What does it cost to start a welding business?

It depends on your model. A mobile repair rig and a full workshop are different planets. The cost categories, though, are the same for everyone.

• Machines and gear: MIG, TIG or stick welders, a plasma cutter, grinders, clamps, benches and PPE.
• Consumables: wire, rods, shielding gas and cylinder rental, cutting and flap discs.
• Vehicle or premises: a ute or van fit-out for mobile work, or rent, power and fume extraction for a shop.
• Setup admin: registrations, insurance premiums, licence fees and your core contracts.

Then work out your charge-out rate before you quote anyone. Here’s a worked example (the numbers are illustrative, so plug in your own). Say your yearly running costs are $40,000 and you want to pay yourself $90,000. That’s $130,000 to cover. If you can realistically bill 1,300 hours a year once travel, quoting and admin come out, your floor rate is $100 an hour before any profit margin.

The mistake we see most? Pricing off what the welder down the road charges, then discovering half the week disappears into driving and quoting. Bill for real hours, not ideal ones.

Where should you set up? You can run a welding business from home, but check council zoning first. Noise, fumes and gas storage in a residential garage attract complaints fast. A workshop lease also needs to permit hot work, so read the permitted-use clause before you sign.

How do you fund welding equipment and a workshop?

Few welders buy a ute, a rig and a workshop fit-out with cash. The way you fund the gear changes who owns it, what you can claim and what a lender can take back if things go sideways.

Option	Who owns the gear	Tax angle	Watch out for
Cash	You, from day one	Instant asset write-off for each asset under $20,000	Drains the working capital you need for wages and steel
Chattel mortgage	You, with the lender holding security	Claim depreciation (or the write-off) plus interest; GST credit on the price if you’re registered	The lender registers its interest on the PPSR, so the asset can be repossessed if you default
Lease or rent-to-own	The finance company, until ownership transfers	Lease and interest payments are deductible; no write-off until you own it	Higher total cost and a balloon payment at the end
Unsecured business loan	You	Interest is deductible	Higher rates and, often, a personal guarantee

Each of the main types of business loans trades off cost against flexibility. For most new welding shops, a chattel mortgage on the ute and cash for the machines is a sensible middle path.

Three things our accountants pick up again and again with tradies buying gear:

• Rent-to-own isn’t ownership. Until the title transfers, you can only claim the lease and interest payments, not the write-off.
• Tools you claimed as a sole trader stay in your personal return. When you move into a company, don’t claim them again in the company’s books.
• A ute used partly for private trips needs a 12-week logbook to back up the business-use percentage. No logbook, no clean claim.

One more thing on secured finance. Read the security agreement before you sign it. Some lenders take a charge over everything the business owns, not just the asset you’re buying. Our guide to how the PPSR applies to businesses explains what a lender’s registration actually means for you.

How do you write a small welding business plan?

Keep it short. A small welding business plan only needs to answer five questions, and one page is plenty to start:

1. Who pays you? Name your three most likely customer types.
2. What exactly do you sell, and what won’t you do?
3. What’s your charge-out rate, and how will you get paid (deposits, progress claims, completion)?
4. What do you need to buy before job one, and how will you fund it?
5. What could go wrong (injury, defect claim, bad debt), and what covers it?

Question five is the one people skip. It’s also the first one a bank, a builder or a lawyer will ask you about. If you’d rather start from a structure, our business plan template walks you through each section.

Which business structure should a welding business use?

Welding is high-risk work. That makes structure more than a tax question.

Structure	Best for	Watch out for
Sole trader	Solo mobile repairs, testing demand	You’re personally liable for business debts and claims
Partnership	Two welders splitting work and profit	Each partner can be liable for the other’s decisions; get it in writing
Company (Pty Ltd)	Site work, employees, bigger contracts	More admin, annual ASIC fees, and every director needs a director ID

Our view: if you’re a one-person repair operation, a sole trader setup is fine to start. Once you’re welding on construction sites, hiring staff or signing head contractor terms, a company is worth the extra admin. Builders and procurement teams take a Pty Ltd more seriously too.

One trap to avoid: bolting a new, riskier welding venture onto a company you already run for something else. If one side of the business gets sued, the assets of both are exposed. A short session with an accountant on whether a separate entity is worth the extra cost pays for itself quickly.

What do you need to register before your first job?

• An ABN. You need one to invoice and claim GST credits. Register your ABN before you quote your first paying customer.
• A business name, unless you trade under your own name. Check and register your business name before you pay for signage or a vehicle wrap.
• GST, once your turnover reaches $75,000 a year. You can register earlier.
• A company and ACN, if you’ve chosen that structure. You can register a company online in one sitting.
• PAYG withholding and super, before your first employee starts.

A common misunderstanding: registering a business name doesn’t stop anyone else using it. Only a trade mark gives you exclusive rights to a brand. If you plan to put real money into your name and logo, register a trade mark early.

What licence do I need to start a welding business?

This is where a lot of online advice gets it wrong. In most of Australia, welding isn’t a licensed trade in its own right. What triggers a licence is the type of work, who it’s for and what it’s worth.

Fixing a farmer’s trailer? No building licence needed. Installing balustrades on someone’s deck, or putting up a steel carport? That’s building work, and the rules change.

State	When a licence kicks in	Who regulates it
NSW	Contracting, advertising or doing residential building or trade work over $5,000 (incl GST) in labour and materials	NSW Government, with licences issued through Service NSW
QLD	Building work over $3,300 (labour, materials and GST combined), including subcontracted work for a licensed builder	QBCC
VIC, WA, SA, TAS, ACT, NT	Varies by type and value of building work; check before quoting on homes or structures	Your state or territory building regulator

In NSW, unlicensed residential work can cost you a fine of $22,000 as an individual or $110,000 as a company. Queensland applies its threshold to the value of the whole project, not each invoice, so splitting a carport job into three bills won’t keep you under it. Read the QBCC’s guide on when you need a licence before your first residential job there.

Why does this matter so much? Unlicensed work can mean fines and, worse, trouble enforcing payment for the job. It’s one of the few mistakes that can cost you the whole invoice.

Do you need a labour hire licence to supply welders?

Supplying welders to work inside someone else’s business can make you a labour hire provider without you realising it. Queensland, Victoria, South Australia and the ACT all have licensing schemes. Hosts in those places must only use licensed providers.

South Australia widened its scheme to cover every industry from 29 January 2026, with existing providers given until 29 July 2026 to get licensed. Each scheme is separate, so a Queensland licence won’t cover you for work in Victoria or South Australia.

Watch the flip side too. In Lawpath consultations, fabricators bring in contracts their client has labelled “labour hire” when the job is really quoted fabrication or maintenance work. That label can shift supervision and safety risk onto you on terms that don’t fit the work. Push back and ask to work on your own quotes or a services agreement instead. Our guide on starting a labour hire company covers the licensing side in more detail.

Qualifications and tickets clients ask for

Your baseline trade qualification is the Certificate III in Engineering (Fabrication Trade), MEM31922. Beyond that, builders and engineers will ask for some of these:

• Welder qualification to AS/NZS ISO 9606 (often called being “coded” or “tested”).
• Experience welding to AS/NZS 1554 for structural steel.
• High risk work licences if you operate EWPs or cranes, or do dogging and rigging.
• Site tickets such as a White Card, working at heights and confined space entry.

Keep copies of every ticket in one folder on your phone. When a site manager asks, you want to send them in thirty seconds, not thirty minutes. Listing your current qualifications on the Australian Welder Certification Register also helps when you tender.

What safety rules apply to a welding business?

Even as a one-person business, you’re a PCBU (a person conducting a business or undertaking) under WHS law. You’re responsible for the safety of yourself, anyone you engage and anyone near your work.

Start with welding fumes. They’re classified as a Group 1 carcinogen. The exposure limit for total welding fumes dropped from 5 mg/m³ to 1 mg/m³ in January 2024, and aluminium welding fumes followed in November 2025. On 1 December 2026, the exposure standards are replaced by workplace exposure limits (WEL), with tighter limits for several metals found in fume. Check Safe Work Australia’s welding fumes guidance for the current figures.

If your fume control is “open the roller door”, it’s time to rethink it. Not sure your setup is enough? An occupational hygienist can test the air in your breathing zone while you work. That costs far less than a regulator visit.

Your basic safety kit as a new business:

• Written risk assessments for workshop and site jobs, based on the model Code of Practice for welding processes.
• Local exhaust ventilation or fume extraction at the source, plus respirators where extraction isn’t enough.
• Hot work permits on client sites, a fire watch and the right extinguishers.
• Safe gas cylinder storage and transport, with Safety Data Sheets on hand.
• Training records and toolbox talks you can show a site manager.

Here’s the commercial upside. On larger sites, missing paperwork can get you walked off before you strike an arc. A tidy safety folder wins work.

What insurance does a welding business need?

Sparks, heat and other people’s property are a risky mix. Sort these before your first paid job:

• Public liability insurance: covers injury to others and damage to their property. Most builders won’t let you on site without it.
• Workers compensation: compulsory once you employ staff.
• Tools and equipment cover: for theft of or damage to your rig and machines.
• Products liability and professional indemnity: worth a conversation if you do pressure pipe, structural or design-related work.

The assumption that catches new welders out: “I’m working in their shop, so I’m on their policy.” Often you’re not. Lawpath lawyers regularly tell new fabricators to confirm in writing whether the host’s insurance covers them, and to get their own cover before taking on higher-risk work. If you’re hiring, our guide to insurance for employers covers what’s compulsory.

What legal documents does a welding business need?

Insurance pays out after something goes wrong. Contracts stop most things going wrong in the first place. Here’s what to use and when:

Document	Use it when	What it fixes
Services Agreement (Supply to a Customer)	One-off jobs for many customers	Scope, deposits, payment dates and defects
Master Services Agreement	Repeat work for the same client	Sign once, then issue a short statement of work per job
Terms of Trade	You supply fabricated goods on account	Credit terms, title and risk in goods
Subcontractor Agreement	You bring in another welder or trade	Rates, quality, WHS and insurance duties
Labour Hire Agreement	You supply welders to another business	Who supervises, who pays and who’s responsible for safety
Employment Agreement	You hire your first employee	Pay, duties, tools and vehicles, termination

Three clauses do most of the heavy lifting in a welding business. Here’s example wording to adapt (it’s a starting point, not tailored advice):

• Payment: “A deposit of [X]% is payable on acceptance of the quote. The balance is payable within [7] days of completion. We may suspend work while any invoice is overdue.”
• Customer specifications: “Where we build to drawings or specifications supplied by you, you’re responsible for their accuracy and fitness for purpose. Changes or rework required because of those specifications will be charged as a variation.”
• Variations: “Any change to the scope must be agreed in writing (email is fine) before we do the work. We’ll quote the change, and the agreed price is added to the next invoice.”

Don’t skip the variations clause because it sounds dull. “While you’re here, can you just add a gusset?” is how a $4,000 job becomes $5,500 of work for $4,000. Write it down, every time.

What to check before you sign a builder’s terms

Commercial clients will often send their own terms instead of signing yours. Before you sign, look for:

• Pay-when-paid clauses that tie your payment to the builder getting paid.
• Broad indemnities that make you cover losses you didn’t cause.
• Liquidated damages for delay, and long retention or defects liability periods.
• Deed poll warranties that make you liable to the head contractor for removal and reinstatement costs, not just fixing your own work.

That last one has come up in Lawpath consultations. The fix is usually simple: narrow the warranty so you only repair or replace your own defective work, for a period that matches your standard warranty. Price the rest of the risk, or push back on it.

Do consumer guarantees apply to your welding work?

Yes, whenever you work for a consumer. Under the Australian Consumer Law, that includes homeowners and any business buying services that cost $100,000 or less. Your work must be done with due care and skill, be fit for the purpose the customer told you about, and be finished within a reasonable time.

Most welders assume a “no refunds” line on the quote protects them. It doesn’t. You can’t contract out of the consumer guarantees, and a sign or clause that suggests otherwise can itself be misleading. Read our guide on how consumer guarantees apply to businesses before you write your terms.

Offering your own workmanship warranty is a good selling point on gates and balustrades. Just keep it realistic. A “lifetime guarantee” on outdoor steelwork in a coastal suburb is a promise you’ll regret. If you do offer one, it has to include the wording the law requires, which our article on warranties against defects sets out.

How do you get paid when a builder won’t pay?

Do construction work, or supply fabricated steel for a construction project? Every state and territory gives you a security of payment law. Most subcontract welders have never used it. They should.

In NSW, the Building and Construction Industry Security of Payment Act 1999 (NSW) lets you serve a payment claim on the party above you. They have 10 business days to reply with a payment schedule explaining any amount they won’t pay. If they don’t reply in time, they owe the whole claim. Pay-when-paid clauses are void.

We hear versions of this in Lawpath consultations. A head contractor says, “Our client hasn’t paid us, so we can’t pay you.” Our lawyers’ answer is consistent: a bare claim like that, with no documents behind it, doesn’t override your statutory rights. Ask for evidence in writing, then escalate.

Each state’s process and deadlines differ, so check the rules where the work happens. Our explainer on the Security of Payment Act in NSW is a good place to start.

Not construction work? Repairs on a trailer or machinery sit outside these laws. There, your contract and a letter of demand are your main tools. Our guide to enforcing a payment covers what comes after that.

Hiring your first welder or apprentice

Your first hire usually happens because you’re turning work away. Good problem. Decide on employment type first: full-time, part-time or casual employment agreements each carry different obligations under the Manufacturing and Associated Industries and Occupations Award.

Taking on an apprentice? The training contract has to be registered with your state training authority. Lawpath lawyers regularly remind employers to confirm the registration has actually gone through, because an unregistered contract creates problems later. Our guide to hiring an apprentice walks through the steps.

Classifying workers correctly matters too. Paying a mate as a “contractor” on an ABN when he works your hours with your gear is a classic route to owing back-pay and super. That’s sham contracting, and the penalties are real. Learn more in the webinar below:

What accounting setup does a welding business need?

Nobody starts a welding business to do bookkeeping. But an hour a week now saves a very bad week at tax time. Get these sorted from day one:

• A separate business bank account, so steel, gas and fuel never mix with the groceries.
• Accounting software linked to that account, with every receipt photographed on the day.
• An asset register for your machines and vehicle, so you claim the instant asset write-off in the right year.
• A logbook for any vehicle you also use privately.

Should you register for GST before you hit $75,000? Often, yes. Lawpath accountants point out that early registration lets you claim back the GST on a big equipment spend, which helps cash flow while the business is still finding its feet. The trade-off is quarterly BAS from day one.

Missed a write-off last year? You can usually amend an individual return within two years of the assessment. Our guide to tax deductions for tradies lists what else you can claim, and Lawpath’s accounting services can take the BAS and tax return off your plate.

How do you find customers for a new welding business?

Start with the people who already buy welding. Builders, landscapers, fabrication shops with overflow, farmers and mechanics all need a reliable welder they can call.

• Set up a free Google Business Profile so you show up for “welder near me”.
• Post before-and-after photos of real jobs. Gates, trailers and repairs sell themselves.
• Drop into local builders and fabrication shops with a card and your insurance certificate.
• Ask every happy customer for a review straight after the job.

If you take enquiries or bookings through a website, add website terms and conditions and a privacy policy. Collecting names, addresses and job photos brings privacy obligations with it.

What we see in Lawpath consultations with welding businesses

Lawpath lawyers and accountants speak with welders, boilermakers and fabricators all the time. The same problems keep coming up:

• Quote by text, chase by phone. Young fabrication businesses with a few staff end up carrying tens of thousands in unpaid invoices because jobs ran on a quote and a “yep, go ahead”. Our lawyers’ fix is the same each time: a Master Services Agreement for repeat clients, tighter payment terms, and a letter of demand when an invoice goes stale.
• Handshake labour deals. Welders who supply workers to other shops, or bring in mates on ABNs, often have no paperwork at all. The setup that works is a labour hire agreement with each host business and a contractor agreement with each person or business supplying workers.
• Hot work before cover is confirmed. New operators start jobs in other businesses’ workshops assuming the host’s insurance extends to them. It often doesn’t.
• “You built it wrong” when they drew it wrong. Without a specifications clause, you can end up redoing work for free even when it matched the customer’s own drawing.
• AI-drafted contracts that don’t fit the trade. Fabricators bring in long agreements built with AI tools that include software-style acceptance testing and clauses no welding job needs. A contract you don’t understand is hard to enforce.
• The wrong contract from the client. Businesses doing quoted fabrication or maintenance get handed a labour hire agreement, complete with one-sided terms. Raising the core issues in a short email first is cheaper than paying for a full redline straight away.

None of these need a big legal bill to fix. They need the right document, filled in properly, before the job starts.

Frequently asked questions

Do I need a licence to start a welding business in Australia?

Not for welding itself in most states. You need a licence when your work counts as building work above your state’s threshold, such as residential work over $5,000 (incl GST) in NSW or building work over $3,300 in Queensland. Repairs on vehicles, trailers and machinery generally fall outside these rules.

How much does it cost to start a welding business?

It depends on your model. A mobile repair setup needs a welder, generator, hand tools and a ute or trailer. A workshop adds rent, power and fume extraction. Budget for insurance, registrations and contracts too, and work out your charge-out rate before you quote.

Can I run a welding business from home?

Yes, but check council zoning first. Noise, fumes, gas storage and customer traffic in a residential area can breach local rules. Many welders start mobile, working on customers’ sites, and only lease a workshop once demand is steady.

What qualification do I need to be a welder?

The standard trade qualification is the Certificate III in Engineering (Fabrication Trade), MEM31922. Clients doing structural or pressure work will often also ask for welder qualification to AS/NZS ISO 9606.

Should I be a sole trader or a company?

Sole trader is fine for solo, lower-risk repair work. A company makes more sense once you work on construction sites, hire staff or sign large contracts, because it separates business liabilities from your personal assets.

When do I need to register for GST?

Once your annual turnover reaches $75,000. You can register earlier to claim GST credits on equipment, which helps cash flow after buying machines and a vehicle. The trade-off is lodging a BAS every quarter.

Can I write off my welding equipment?

Yes, if your business turns over less than $10 million. The $20,000 instant asset write-off is now permanent and applies per asset, so each machine under $20,000 can be deducted in full in the year you first use it. Leased equipment doesn’t qualify until you own it.

What insurance is required for a welding business?

Workers compensation is compulsory once you have employees. Public liability isn’t legally required everywhere, but most builders and sites won’t let you work without it. Add tools cover, and consider professional indemnity for structural or pressure work.

What is the welding fume exposure limit in Australia?

Total welding fumes must stay below 1 mg/m³ averaged over an 8-hour shift. On 1 December 2026, workplace exposure standards are replaced by workplace exposure limits (WEL), which tighten the limits for some metals in fume. Review your extraction and respirator setup against the new list.

Do I need a labour hire licence to supply welders?

In Queensland, Victoria, South Australia and the ACT, yes, if you supply workers to work in another business. Each scheme needs its own licence, and hosts must only use licensed providers. Quoted fabrication work you manage yourself is different, so check which side of the line you’re on.

What are the most profitable welding business ideas?

Specialist work (stainless, aluminium, pipe) and structural site welding command higher rates, but carry more licensing and insurance cost. Mobile repairs are cheaper to start and build a customer base quickly.

How do I stop customers paying late?

Take a deposit, set a clear due date and get written acceptance of your terms before you start. Include a right to suspend work on overdue invoices. On construction jobs, a payment claim under your state’s security of payment law is faster than chasing by phone.

How Lawpath can help you start a welding business

Lawpath puts your registrations, contracts, tax and advice in one place, so you can spend your time on the tools instead of on admin. Pick from 550+ legal document templates, register your ABN or company online, and book a fixed-fee consultation with an experienced lawyer when a builder sends you terms you’re not sure about. It’s the same setup 650,000+ Australian businesses have used to get started.

If this feels like a lot, you’re not behind. Every welder who runs a solid business today started with an ABN, a rig and one customer. Get your customer terms sorted first, because that’s the document that gets you paid.

Create your Services Agreement today and send it with your next quote.