Last updated 2026-08-21
TL;DR
Delaware has no mobile welder board and no statewide welder occupational license. Paid work still needs a Division of Revenue business license. Contractors pay a $75 license fee in Title 30, Chapter 25, plus gross receipts tax. Forming an LLC costs $90 to file and $300 a year in franchise tax. Cities can add contractor cards. AWS is private. Confirm every fee and form with the agency that issues it before you bid work.
Do you need a license for mobile welder in Delaware?
No statewide welder license exists in Delaware, and there is no mobile welder board to apply to. That does not make paid welding a paperwork-free hobby. If you invoice customers, the Division of Revenue expects a Delaware business license, and the jobsite or the city may ask for more.
People mix up three different cards. First is an occupational license issued by a state board. Delaware uses that model for electricians and plumbers. It does not use it for welders. Second is a business license and gross receipts tax account from the Division of Revenue. That one is real for almost anyone in business here. Third is a private welding qualification such as an AWS Certified Welder card. Shops and general contractors ask for it. The state does not print it.
If your work is construction (structural steel, stairs, handrail on a building, plant turnaround under a GC), Revenue is likely to treat you as a contractor under Title 30, Chapter 25. That chapter has long set the contractor license fee at $75. Confirm the live amount before you pay. [2] If your work is mostly equipment repair in a farm yard or a truck lot, you may land in a different Title 30 occupation line instead. Do not guess the box from a blog. Ask Revenue or a Delaware CPA which category matches the mix of work you actually sell.
I would not take a paid job with no business license on file. I also would not buy a fake "Delaware welder license" from a course mill. That product does not map to a board that exists. [1]
Is there a mobile welder board in Delaware?
There is not. The Division of Professional Regulation publishes the boards it actually runs. You will see Electrical Examiners, Plumbing, Heating and Cooling, Architecture, and a long list of health and service boards. Welding is not on that list. [1]
That is the whole answer, and it is the part most national checklists get wrong. Search results talk about "the board" as if every state copied the same packet. Delaware did not.
What you meet instead is a tax agency, a corporations office, maybe a city license desk, and whatever qualification language a GC typed into a subcontract. Those offices do not talk to each other. None of them issues a mobile welder card.
Compare that with a real trade board. Electricians sit under Title 24, Chapter 14. That statute creates examinations, apprenticeships, and a license you can lose. [13] Welders have no parallel chapter. If a salesperson tells you Delaware "just added" a welder board, ask for the chapter number. They will not have one.
Reading neighboring writeups shows how odd this is. Start with mobile welder board rules in Connecticut. Same region, still a different paper stack. California is a different animal entirely. Read mobile welder board in California only if you also chase work out west.
What papers do you actually file to work legally?
The real path is a business identity, a Revenue license, tax accounts that match how you hire people, and whatever the city or the GC added on top. None of it is a welding test.
Start with a legal name. A sole proprietorship can operate under your personal name. An LLC is what I would file if the truck, the bottles, and the jobs can create a claim. The Division of Corporations charges $90 to file a Certificate of Formation for a Delaware LLC. [4] That LLC then owes a $300 annual franchise tax. [5] Those two numbers have sat still for years. Confirm them on the Division of Corporations fee pages anyway.
Get an EIN from IRS if you form an entity, hire anyone, or want a bank account that is not tied to your Social Security number. The online EIN application is free. [10] Then file the business license through Delaware's business one-stop or directly with the Division of Revenue. [3][12]
A simple map looks like this:
| Paper | Who issues it | Is it a welder card? | Confirm at |
|---|---|---|---|
| Business license and GRT | Division of Revenue | No | revenue.delaware.gov |
| LLC Certificate of Formation | Division of Corporations | No | corp.delaware.gov |
| LLC annual franchise tax | Division of Corporations | No | corp.delaware.gov |
| City or county contractor card | Wilmington and some other towns | No | the local licenses desk |
| AWS or ASME qualification | Test facility / owner spec | Private, not state | aws.org and the contract |
| Electrical or plumbing license | DPR boards | Only if you do that trade | dpr.delaware.gov |
Hire even one employee and you add workers' compensation and unemployment accounts. Delaware's workers' compensation chapter lives in Title 19, Chapter 23. [11] A true one-person shop with no employees is a different analysis. Confirm that with the Department of Labor. Do not take a stranger's word that "owner-operators never need it."
Keep copies of the formation stamp, the Revenue license, the EIN letter, and your insurance certificates in the truck. GCs ask for the COI first. Cities ask for the local card. Almost nobody asks for a Delaware welder board number, because that number does not exist.
How much does mobile welder cost in Delaware?
Paper is cheap next to the truck. A contractor business license fee of $75 sits in Title 30, Chapter 25. [2] A Delaware LLC Certificate of Formation costs $90. [4] The LLC annual franchise tax is $300. [5] Add a registered agent if you do not want your home address on the public file. That is a private vendor charge, not a state board fee.
The truck is the real bill. Nobody publishes a clean Delaware survey of mobile welder startup costs. The honest range is ugly. A used three-quarter-ton or one-ton truck that can carry bottles and a machine often lands anywhere from the mid five figures into well above $80,000 depending on rust, miles, and whether a service body is already on it. A new engine-driven welder in the common farm-and-field class is often several thousand dollars and can run past $10,000 once you add leads, a cart or crane, and spare consumables. Buy a known used machine from a shop that will let you strike an arc on it. Do not finance a show truck in month one.
Customer pricing is another hole. I have not seen a public Delaware rate study I trust. In the Mid-Atlantic, mobile field welding commonly bills in a wide hourly band plus a trip fee, and shop-backed emergency work sits higher. Your number has to cover fuel, wire, gas, insurance, the GRT line, and deadhead time across New Castle, Kent, and Sussex. If a Facebook group quotes a single "Delaware price," treat it as gossip.
Insurance costs more than the state license. Commercial auto on a weld truck is the line that stings. General liability in the $1 million per occurrence range is what most GCs type into the subcontract. Equipment (inland marine) covers the machine when it is off the truck or in the bed. Workers' compensation, if you have payroll, is its own quote. No Delaware welder board sets any of those premiums.
Waste of money: paying anyone for a state welding license class that ends in a diploma the Division of Professional Regulation will not recognize. Also a waste, in my view, is buying every attachment in year one. Get paid on stick, MIG, and flux-core first.
How long does mobile welder take in Delaware?
There is no board queue, so there is no official welder-license wait. The clock is the slowest office in your stack, and that stack changes if you form an entity, hire people, or need a city card.
I will not invent processing times. The Division of Corporations, the Division of Revenue, city license desks, and AWS test facilities each run their own clocks. Those clocks move. Expedite fees exist for some corporate filings. They do not exist for a welder board, because the board does not exist.
Plan around sequence, not a promised day count. File the entity (or decide you will stay a sole proprietor). Get the EIN. File the business license. Bind insurance so the first GC can have a certificate. Schedule any AWS or contractor-required qualification at a test shop. Then call the city if the job sits inside a town that licenses contractors. Confirm each step with the office that stamps it before you promise a customer a start date.
The welding skill itself is the long item. A person who already welds to a code can often test in a day once a booth is open. A person who has never run a root pass is not a paperwork problem. That is a practice problem. Delaware will not shorten it.
If you also need an electrical license because you intend to land services or build control panels, you just left the no-board world. That path has exams and experience rules under the Board of Electrical Examiners. [13] Budget months, not an afternoon.
Do you need AWS certification to weld for pay in Delaware?
The state does not require an AWS card to hold a business license. Plenty of repair work gets done on a handshake and a clean bead. Structural jobs, plant work, and anyone spending public money will ask for a qualification that matches the code on the drawing.
AWS says it plainly: "The AWS Certified Welder program is a performance-based program with no prerequisite courses or certifications required." [9] You test a process, a position, and a base metal at an accredited facility. You keep the card current under AWS rules, not under a Delaware renewal cycle.
Hold at least one current structural qualification if you plan to bid anything a PE or a GC will inspect. D1.1 plate in a common process is the card that opens the most doors. Pipe tickets matter if that is the work. A stack of expired wallet cards is not a personality trait. It is a reason to get walked off the site.
Owner specs beat state myths. A tank shop may want ASME Section IX coupons. A bridge job may want whatever DelDOT or the prime put in the spec book. Those are contract terms. They are not a substitute Delaware board.
Skip the weekend "certification" that is just a participation trophy. If the facility cannot tell you the code, the position, and where the record is kept, it is a class, not a qualification.
What insurance do Delaware mobile welders carry?
Insurance is the closest thing this trade has to a gate. The state will take your business license fee without asking about coverage. The first general contractor will not.
Commercial auto is mandatory in practice the moment the truck is a business vehicle. General liability is what gets you on a site list. Most construction subcontracts I have read want $1 million per occurrence. Excess or umbrella shows up on larger plants. Inland marine (equipment) is how you replace the machine after a tailgate theft. Employees make workers' compensation a statute problem, not a taste problem. [11]
Hot work is the exclusion that sinks people. Some cheap policies treat welding as a surprise. Read the form. If the carrier will not put welding and cutting in writing, the COI is a decoration. Ask for additional insured and waiver of subrogation wording only after you know the policy actually covers the work.
OSHA still applies even though Delaware has no welder board. The federal rule is blunt: "If the object to be welded or cut cannot readily be moved, all movable fire hazards in the vicinity shall be taken to a safe place." [6] Construction sites add 29 CFR 1926 Subpart J for fuel gas, arc welding, and fire watch habits. [7] A burned-down barn is not a branding problem. It is a claim.
Want a one-time packet that walks through truck-build records and certificate of insurance wording? MobileRigPath sells a $149 Truck-Build + COI Kit at /start. We are an independent publisher, not a broker and not a law firm. The kit does not replace a Delaware agent who will actually bind the policy.
Spend money on a broker who already writes welders before you spend a dime on vinyl wraps.
Do Wilmington or other cities add a contractor license?
Some do. Delaware's missing welder board does not stop a city from licensing contractors who work inside city limits. Wilmington's Licenses and Inspections desk is the example people hit first. Other towns run their own business or contractor cards. Unincorporated county work can look different from work on a numbered city street.
Call the building or license office for the exact job address. Ask whether field welding on that property needs a contractor registration, a business license, a permit, or just the property owner's blessing. Get the answer in writing if the clerk will email it. Do not assume a state Revenue license covers a city ordinance.
This is where people get cocky. They form the LLC, buy the truck, and then lose two days at a gate because the GC's badge office wants a city number. The city is not being philosophical. It wants a local fee and a local contact.
Keep a folder with the city card, the state business license, and the COI as three separate PDFs. Inspectors do not want your life story.
Chase work across state lines from a Delaware truck and you start over on paper in that state. Our Florida and Georgia pages show how fast the story changes once you leave the First State.
Do you need a CDL or DOT number for a Delaware weld truck?
Most mobile weld trucks built on a three-quarter-ton or one-ton pickup stay under the federal CDL weight trigger. A CDL is required when the vehicle or combination meets the commercial motor vehicle definition, commonly a GVWR of 26,001 pounds or more, or when the load needs a hazardous materials placard. [14] Confirm the rating on the door sticker, not the nickname on the sales sheet.
A service body, a crane, a full bottle rack, and a bed-mounted machine can push a heavy-duty chassis closer to that line than people think. Spec a larger truck and you should run the numbers before you buy. A CDL is a real course and a real medical card. It is not a Delaware welder board add-on.
Interstate work, for-hire hauling, or certain mileage and weight combinations can pull you into USDOT numbering and, if you cross state lines in a qualifying vehicle, IRP and IFTA. In-state, light-duty, owner-driven trucks often stay out of that net. "Often" is not a legal opinion. Ask FMCSA rules and Delaware DMV commercial staff with your actual GVWR and use case.
Bottles and fuel are the other trap. Propane, acetylene, and diesel in quantity can create hazmat duties that have nothing to do with welding skill. Secure the bottles. Read the carrier's rules. Do not throw loose cylinders at a headboard and call it a day.
I would rather own a lighter truck I can drive on a regular license than a rolling shop I cannot legally take to a 4 a.m. farm call.
What taxes hit a mobile welding business in Delaware?
Delaware does not run a retail sales tax the way Maryland or New Jersey does. It runs a business license and a gross receipts tax. [3] That is the tax conversation you actually have here.
Gross receipts tax rates and monthly exclusions change. I am not going to stamp a percentage on this page and watch it rot. The Division of Revenue publishes the live contractor and services rates. Confirm how your invoices split labor, materials, and out-of-state work before you print a rate card. A CPA who files Delaware GRT is worth more than a national tax YouTuber.
Federal income tax still exists. So do estimated payments if you are profitable and no one is withholding. An LLC taxed as a sole proprietor files on Schedule C unless you elect otherwise. Payroll taxes show up the day you have an employee.
The $300 LLC franchise tax is easy to forget and expensive to ignore once it goes delinquent. [5] Put it on a calendar. Corporate franchise tax math is different if you formed a corporation instead of an LLC. Most one-truck operators should not form a corporation just because someone on the internet likes C corps.
Keep job tickets. GRT and income tax fights are document fights. A notebook in the door pocket beats a reconstructed year from memory.
When does the electrical or plumbing board get involved?
When you stop welding and start doing those trades. Welding a bracket onto a machine is welding. Landing a new electrical service, pulling branch circuits, or installing a boiler is not welding. Delaware licenses those jobs through real boards.
Title 24, Chapter 14 is the electrical statute. [13] The Board of Electrical Examiners is picky about unlicensed electrical work for a reason. A mobile welder who "just hooks up the disconnect" on a commercial site can walk into that statute without meaning to. If the drawing has a circuit, call a licensed electrician or get licensed yourself.
Plumbing, heating, and cooling have their own board and their own line about who may install what. Cutting and welding pipe for a licensed mechanical contractor as their hired welder is a different fact pattern from selling a turnkey mechanical job out of your truck.
Stay in your lane on paper. Your insurance agrees with that advice even if your ego does not.
Want to see how other states blur these lines? Skim Illinois and Arizona. The lesson is the same. The welding arc is not a master key to every trade license.
What would I do first if I were starting a Delaware weld truck?
Decide the work mix in one sentence. Farm and truck repair is one business. Structural subcontracting is another. Both can live on the same truck. They do not live on the same insurance form or the same Revenue category.
Then file the LLC, get the EIN, and apply for the business license before you order business cards. [4][10][3] Call an insurance broker who already writes hot work, not the person who insures your neighbor's florist van. Confirm city contractor rules for the towns you actually expect to enter. Book an AWS test only if the work you want requires it.
Do not wait for a Delaware mobile welder board letter. It will not come.
On the truck, start used unless you have cash you can afford to lose. A straight frame, a machine that starts in January, and a fire extinguisher that is not a museum piece will make more money than a new wrap. Read 29 CFR 1910.252 and 1926 Subpart J like they are jobsite rules, because they are. [6][7]
Confirm every fee. Confirm every form name. Confirm whether your work is contractor GRT or another line. MobileRigPath is an independent publisher, not a law firm and not a service company. The $149 Truck-Build + COI Kit is at /start if you want a checklist. This page works without it.
Like reading other state stacks for contrast? Colorado and Alabama are useful precisely because they are not Delaware.
Frequently asked questions
Do you need a license for mobile welder in Delaware?
You do not need a statewide occupational welder license, because Delaware has no welder board. You do need a Division of Revenue business license to take paid work, and you may need a city contractor card. Construction-style field work often lands under the Title 30 contractor chapter. Confirm your category with Revenue before the first invoice.
How much does mobile welder cost in Delaware?
State paper is small. Title 30 sets a $75 contractor license fee. A Delaware LLC is $90 to form and $300 a year in franchise tax. Confirm live amounts with Revenue and Corporations. The truck, machine, and insurance dwarf those figures. Nobody publishes a solid Delaware startup survey, so budget from real quotes, not a national myth.
How long does mobile welder take in Delaware?
There is no board wait. Time equals however long Corporations, Revenue, your insurer, any city desk, and an AWS test shop take on your filing. Those clocks change and are not guaranteed here. A welder who still needs skill time should count practice in months, not form-processing days.
Is mobile welding legal in Delaware without AWS certification?
Yes, the state will issue a business license without an AWS card. Private customers doing light repair often never ask. Structural, plant, and public jobs usually require a code qualification that matches the drawing. AWS Certified Welder is performance based and is not a Delaware license. Let the contract tell you which coupon to weld.
Does Delaware require a contractor license for field welding?
The state requires a business license. Construction contractors are called out in Title 30, Chapter 25, with a $75 license fee in the statute. Repair-only work may sit in another occupation line. Cities can add their own contractor cards. Ask Revenue which box fits your invoices, then ask the city for the job address.
Do I need a CDL to drive a weld truck in Delaware?
Not if the truck stays under federal CMV thresholds and you are not placarding hazmat. The common trigger is a GVWR of 26,001 pounds or more. Read the door sticker after you add the body, crane, and machine. Confirm edge cases with FMCSA rules and Delaware DMV. Do not guess from the model name.
What insurance do general contractors ask mobile welders for?
Expect commercial auto, general liability (often $1 million per occurrence), and a COI that names the GC as additional insured. Equipment coverage matters once the machine leaves the cab. Employees trigger workers' compensation under Title 19, Chapter 23. Make sure the policy actually covers welding and cutting. A cheap form with a hot-work hole is worthless.
Can I operate a Delaware weld truck as a sole proprietor?
Yes. You can skip the LLC, still get an EIN if you want one, and still file the Revenue license. I would not do that once the truck and the jobs can generate a serious claim. The LLC is $90 to form and $300 a year. That is cheap next to a burn-down lawsuit aimed at your house.
Does Delaware charge sales tax on welding labor?
Delaware does not collect a retail sales tax. It does collect gross receipts tax on business receipts, and the rate depends on your Revenue category. Labor versus materials treatment is a facts question. Confirm current GRT rules on the Division of Revenue rate pages or with a Delaware CPA before you print invoices.
What if I weld in Maryland or New Jersey from a Delaware truck?
Delaware paper does not travel as a welder license, because Delaware never issued one. The other state may want its own business registration, contractor license, or tax account. Insurance must list those operating territories. Reciprocity is not a thing when the home state has no board to reciprocate with.
Do I need workers' compensation if I have no employees?
Title 19, Chapter 23 is written around employers. A true solo operator with no employees is a different case than a two-person truck. Some sites and GCs still demand a certificate anyway. Confirm your status with Delaware Department of Labor Industrial Affairs and with the GC. Do not skip the call because a forum said owners are exempt.
Where do I confirm current Delaware fees?
Division of Revenue for the business license and GRT. Division of Corporations for the $90 formation fee and the $300 LLC franchise tax. The city license desk for local contractor cards. DPR only if you also do electrical or plumbing work. Ignore any site that quotes a "welder board" fee. Confirm numbers the week you file.
Is a pressure vessel or structural stamp required by Delaware?
Not as a general mobile welder license. Pressure and structural work are driven by the code on the job, the owner, and sometimes a commissioned inspector. ASME Section IX and AWS D1.1 are common contract languages. If the vessel or the building needs a stamp, the contract will say so. That still is not a state welder board card.
Can someone with a criminal record get a Delaware welding business license?
A Revenue business license is a tax license, not a character board interview like some professional licenses. Entity formation at Corporations is a filing. City contractor cards and GC vendor setups can ask more questions. Insurance underwriting can also say no. Ask the agency that issues the specific card. Do not assume a felony is an automatic statewide ban.
Sources
- Delaware Division of Professional Regulation, Boards listing: DPR publishes the professional boards it regulates; welding is not among those boards.
- Delaware Code Title 30, Chapter 25 (Contractors): Delaware contractor licensing and the $75 contractor license fee are set in Title 30, Chapter 25.
- OSHA 29 CFR 1910.252 Welding, Cutting, and Brazing: Federal general-industry welding rules require movable fire hazards to be taken to a safe place when the work cannot be moved.
- OSHA 29 CFR 1926.350 Gas welding and cutting: Construction welding and cutting is regulated under 29 CFR 1926 Subpart J, including fuel-gas rules.
- BLS Occupational Outlook Handbook, Welders, Cutters, Solderers, and Brazers: BLS defines the welder occupation and posts current national wage and outlook figures on the Handbook page.
- American Welding Society, Certified Welder program: AWS Certified Welder is a performance-based private certification with no prerequisite courses required.
- IRS, Apply for an Employer Identification Number (EIN) online: IRS issues EINs online at no charge for eligible entities and employers.
- Delaware Code Title 19, Chapter 23 (Workers' Compensation): Delaware workers' compensation duties for employers are set in Title 19, Chapter 23.
- Delaware Code Title 24, Chapter 14 (Board of Electrical Examiners): Delaware licenses electricians by statute under Title 24, Chapter 14, a structure that has no welder counterpart.
- FMCSA, Commercial Driver's License: Federal CDL rules apply to drivers of commercial motor vehicles, including vehicles at or above the 26,001-pound GVWR threshold.