How to Start in Canada

How to Start a Drywall and Plastering Business in Canada

Start a drywall and plastering business in Canada: licensing, registration, insurance, workers' compensation, and how drywall jobs are priced.

Written October 25, 2026 · Edited November 6, 2026 · 15 min read

Applies in: across Canada

The short answer

Drywall looks like a no-licence trade from the outside, and in most of Canada that is close to true — but the business is really three trades sharing one truck, and Quebec treats two of them as compulsory. Plasterers, drywall installers and finishers, and lathers sit under one National Occupational Classification code, yet their certification rules differ by province, and Quebec adds an RBQ contractor licence on top. Outside Quebec, the real gates are the same ones every trade business faces: a registered business name, tax accounts set up before the revenue arrives, liability insurance, workers' compensation before the first hire, and a written quote that separates boarding from finishing. Get those right and the rest is a craft business: sheets hung flat, joints taped clean, and walls a painter is glad to walk into.

Step 1: Pick a drywall lane — and start with one

Drywall lanes look alike from the hallway and run differently on the job:

  • Residential boarding and taping: houses, condos, and basement finishes. Jobs are measured in rooms, the buyer is usually a homeowner or a renovator, and speed plus a clean finish carry the business.
  • Plastering and repair: skim coats, patch work, ceiling repairs, and older homes. Smaller jobs, fussier customers, and a premium for a finish that disappears into the old wall.
  • Commercial interior systems: offices, retail units, and tenant fit-outs, including steel framing, board, and suspended ceilings. Larger jobs, general contractors as buyers, and insurance and clearance certificates as a condition of stepping on site.

Start with one lane. A crew that advertises houses, offices, plaster restoration, and acoustic ceilings in the first month is really advertising that none of them is proven yet. One lane, done well, earns the photos and reviews that let you add the second.

Step 2: The licensing reality, province by province

Job Bank's requirements for plasterers, drywall installers and finishers, and lathers, drawn from the National Occupational Classification, put it plainly: completion of secondary school is usually required, plus a three- or four-year apprenticeship program in plastering, drywalling, or lathing, or a combination of over three years of work experience and some high school, college, or industry courses in plastering, drywalling, or lathing to be eligible for trade certification.

What that means in practice, trade by trade:

  • Plasterers: certification is compulsory in Quebec and available but voluntary in Ontario, Saskatchewan, and British Columbia, as Job Bank lists it.
  • Drywall installers and finishers: certification is available but voluntary in British Columbia, as Job Bank lists it. Job Bank does not list a drywall installer and finisher certification program for the other provinces, so do not claim a ticket exists where none is listed — check the provincial apprenticeship authority for the province you will work in.
  • Lathers (interior systems mechanics): certification is compulsory in Quebec and available but voluntary in all other provinces and the Yukon, with a Red Seal endorsement available on passing the interprovincial exam.
  • In Quebec, on top of certification, the business needs an RBQ licence in subclass 9.0 for interior finishing work. Do not take Quebec drywall or plastering work on the strength of an out-of-province setup; check both requirements first and get them in place before you quote.
  • No province issues a separate "drywall business licence." The licences that do apply are the ordinary ones: a municipal business licence where your city requires one, and any site-specific requirement a general contractor imposes, such as proof of insurance and workers' compensation clearance.

Step 3: Register the business and set up tax before the money arrives

The business paperwork is the cheapest part of the startup, and it is the part most often left until a customer asks for an invoice:

  • Structure: most drywall installers start as sole proprietors and incorporate later, when revenue and liability justify it. If you trade under a name other than your own legal name, register that name provincially.
  • Ontario: registering a sole proprietorship under a business name costs $60 through the Ontario Business Registry and lasts five years. Operating under your own name does not require registration.
  • British Columbia: request name approval first ($30), then register the sole proprietorship ($40) using the name request number within 56 days, or the approval lapses.
  • CRA business number: free, and needed for payroll and GST/HST accounts. Register for GST/HST once taxable sales pass $30,000 in a single calendar quarter or over four consecutive calendar quarters, or voluntarily before that so you can claim input tax credits on board, compound, tools, and vehicle costs.
  • Municipal business licence: check your city's licensing page. Some cities license businesses generally, some regulate home-based businesses or signage, and some require nothing drywall-specific. Do not assume a neighbouring city's answer applies to yours.
  • Bookkeeping from job one: track board, compound, labour, mileage, and disposal per job. An installer who knows the cost per square foot prices with confidence; one who does not drifts into long days for hourly wages.

Step 4: Insurance and workers' compensation

Two conversations, in the order a broker will want them:

  • Commercial general liability: covers injury or property damage to someone else — a sheet dropped on a finished floor, a screw through a pipe, compound splashed on a customer's furniture. A homeowner's policy does not cover your business, and a general contractor who asks for your certificate of insurance before you start is doing you a favour by asking early.
  • Vehicle and equipment: if you drive a van or carry scaffolding, stilts, sanders, and lifts, confirm the vehicle policy covers commercial use and that expensive kit is covered in transit and on site, not just in your garage.

Workers' compensation is the third conversation, and it starts before the first hire — and in Ontario, before the first construction job. Since January 1, 2013, independent operators, sole proprietors, partners, and executive officers in Ontario construction have been treated as workers who must be covered, so register with the WSIB and confirm whether any narrow exemption applies to your exact work. In other provinces, register with the board in the province where your crew works, before the crew's first shift. Solo operators outside Ontario can ask their board about optional coverage: an installer with a bad shoulder injury and no coverage has no income and no claim.

Step 5: Safety training — dust, heights, and heavy sheets

Drywall injuries cluster in three places: dust, falls, and heavy lifting. The training maps to those three:

  • Dust: sanding joint compound makes fine dust that hangs in the air. Control it at the source where the sander allows it, ventilate the room, and wear the respiratory protection the product safety data sheet calls for. Never dry-sweep a room full of sanding dust into the air the next trade will breathe.
  • Working at heights: in Ontario, a worker on a construction project who uses a travel restraint, fall-restricting, or fall arrest system must complete Chief Prevention Officer approved training before using that system, and fall protection is required where a worker may fall more than 3 metres. High ceilings, stairwells, and work from scaffolding all sit in this world. Other provinces set their own thresholds and training rules, so check the rule where the job sits, and keep training records current.
  • Heavy sheets: a full sheet of board is an awkward two-person lift, and stilts change how a fall happens. Lift with two people, use a panel lifter for ceilings where the job allows it, and never carry a sheet up a ladder. A crew that treats a sheet as a one-person carry is the crew most likely to lose a week to a back or shoulder injury.
  • Chemicals, briefly: joint compound, adhesives, and primers each carry a safety data sheet, and any worker who handles or may be exposed to a hazardous product must be trained on that product's labels and safety data sheets. That is the WHMIS discipline, and it applies to the compound on the truck, not just to industrial coatings.

Step 6: Kit, measuring, and the standard of work

The working kit for a drywall installer runs: a tape and laser measure, a utility knife and rasp, a drywall square, a screw gun and screws, a lift or panel carrier for ceilings, taping knives in several sizes, a mud pan, a sanding pole and sponge, stilts or a scaffold for high work, and a vehicle that keeps board dry and flat. Plastering adds hawks, trowels, and mixing kit; commercial work adds steel-stud tools and laser levels.

The job sequence that earns repeat work is the same on a basement and a boardroom: measure every wall and ceiling and note the framing condition, agree the board type, the finish standard, and the extras in writing, protect the rest of the site, hang the board, tape and coat the joints, sand, check the finish in raking light, and walk the customer through the finished walls before the painter arrives. The walk-through is not a courtesy; it is where a small miss gets fixed in ten minutes instead of becoming a callback, a bad review, and a second trip.

Step 7: Pricing jobs — boarding, finishing, and named extras

Drywall quotes follow one model, and the finishing standard is where installers lose money:

  • Boarding per square foot: the standard hanging quote. It works because the installer has measured the walls and ceilings, seen the framing, and can price the whole hang as one number. State the board type the price covers, because fire-rated, moisture-resistant, and standard board are not the same price.
  • Taping and finishing separately: the finish drives the labour, so price it as its own line and name the standard in writing. A smooth finish ready for paint costs more than a rough finish that will sit behind tile, and a quote that does not say which one it buys is a dispute waiting for the painter to find it.
  • Bulkheads, curves, and arches: price as extras. Framing and boarding a curve costs more per square foot than a flat run, and a flat-rate quote that treats a bulkhead as wall area underprices the hardest part of the job.
  • Soundproofing and high work: price as extras. Extra layers, resilient channel, and sealant take time and material, and high ceilings that need scaffolding or lifts take both plus setup time.
  • Repairs: price per patch or per job depending on size. A small patch is a fixed price; a ceiling repair with matching texture is a job price, agreed after seeing the damage.

Whichever extras apply, the written quote should separate boarding, finishing, and extras, name the board type, state who supplies the board, and say how extras are charged. A deposit before work starts is normal; the balance on completion after the walk-through is normal too.

Step 8: Finding the first clients

The first ten jobs rarely come from advertising. They come from people who already trust you:

  • Tell everyone you know, plainly: you hang and finish drywall, here is the service, here is the number. Friends, family, neighbours, and former employers are the first book.
  • General contractors, builders, renovators, and painters buy drywall repeatedly, and they buy on reliability first: show up when promised, send the quote when promised, and finish when promised. One general contractor who trusts you is worth a season of ads, because a contractor's next job is already scheduled when yours finishes.
  • Before-and-after photos, with the customer's permission, are the portfolio. Photograph in raking light, from the same angle, and keep the customer's belongings out of frame. A flat wall in raking light is the proof; a flat wall in flat light proves nothing.
  • Online listings and a simple website come next: service area, services, photos, and a phone number. Reviews follow completed jobs, not advertising spend — ask every happy customer for one, and answer every review, good or bad, like a person, not a brand.

What not to do

  • Do not take Quebec drywall or plastering work without checking the compulsory certification rule and the RBQ subclass 9.0 licence that apply there.
  • Do not hire a crew before registering for workers' compensation coverage in the province where the crew works.
  • Do not send a subcontractor on a general contractor's site without checking that subcontractor's clearance certificate first.
  • Do not put a worker on fall protection in Ontario without Chief Prevention Officer approved working at heights training.
  • Do not tear out suspect old plaster or board before checking whether it may contain asbestos.
  • Do not start a job without a written quote that separates boarding, finishing, and extras and names the finish standard.
  • Do not take a deposit on an Alberta residential job before checking the prepaid-contractor licence rule.
  • Do not promise a finish, a date, or a coverage level your kit, your crew, or your policy cannot deliver.

Related guides:

Starting a drywall and plastering business in Canada, in six steps

  1. Pick a drywall laneResidential boarding and taping, plastering and repair, or commercial interior systems. Each lane needs different crews, different kit, and a different buyer.
  2. Clear the licence questionPlasterer and lather certification is compulsory in Quebec and voluntary elsewhere as listed, and Quebec work for a client needs an RBQ licence in subclass 9.0.
  3. Register the businessProvincial business name registration if you trade under a name, a free CRA business number, and GST/HST registration once taxable sales pass $30,000.
  4. Insure the work and the crewCommercial general liability for damage to someone else's property, and workers' compensation coverage before the crew's first shift.
  5. Set the job sequence before the first sheet goes upMeasure, check the framing, hang the board, tape and coat the joints, sand, and walk the customer through the finished walls before the painter arrives.
  6. Price boarding per square foot, finishing separatelyBoarding prices by the square foot. Taping and finishing, bulkheads, curves, soundproofing, and repairs price as named extras.

Verified fees in the drywall-business startup paperwork

Ontario sole proprietorship registration$60, five years
BC name request plus registration$30 plus $40
CRA business number$0 — free
GST/HST registration threshold$30,000 in taxable sales

Questions people ask

Do I need a licence to start a drywall and plastering business in Canada?

Outside Quebec, no trade licence blocks you from boarding and taping work in most of the country, but the three trades inside this business are not treated the same, so check which one your work falls under. Job Bank, drawing on the National Occupational Classification for plasterers, drywall installers and finishers, and lathers (NOC 73102), states that completion of secondary school is usually required, plus a three- or four-year apprenticeship program in plastering, drywalling, or lathing, or a combination of over three years of work experience and some high school, college, or industry courses in plastering, drywalling, or lathing. Plasterer trade certification is compulsory in Quebec and available but voluntary in Ontario, Saskatchewan, and British Columbia. Drywall installer and finisher trade certification is available but voluntary in British Columbia. Trade certification for lathers, listed as interior systems mechanics, is compulsory in Quebec and available but voluntary in all other provinces and the Yukon. A Red Seal endorsement is available to qualified lathers who pass the interprovincial Red Seal examination.

What does Quebec require for drywall and plastering work?

Two things, and they are separate. First, plasterer and lather certification is compulsory in Quebec, so check the Quebec regulator's requirements before taking work there. Second, the business side needs a licence from the Régie du bâtiment du Québec (RBQ): subclass 9.0, Contractor — Interior finishing, authorizes construction work relating to interior surfaces such as floor, wall, and ceiling coverings and their finishes, including coverings such as plaster, roughcast, mortar, cement, and stucco, furring and laths, plasterboard (gypsum board) and lightweight cement board, drywall taping, and acoustic and suspended ceilings. Confirm the subclass covers your exact scope before bidding, because a bid made without the required licence can be a penal offence.

What business registration does a drywall business need?

The same as any Canadian service business. If you trade under a name other than your own legal name, register that name provincially: in Ontario that costs $60 through the Ontario Business Registry and lasts five years, and in British Columbia a name request costs $30 followed by a $40 registration that must be completed within 56 days or the approval lapses. A CRA business number is free. Register for GST/HST once your taxable sales pass $30,000 in a single calendar quarter or over four consecutive calendar quarters, or voluntarily before that if claiming input tax credits matters to you. A municipal business licence may also apply, so check your city's licensing page rather than assuming a neighbouring city's answer.

Do I need workers' compensation coverage for a drywall crew?

Once you hire staff, yes, through the board in the province where the crew works. In Ontario the rule goes further: since January 1, 2013, independent operators, sole proprietors, partners, and executive officers in construction have been treated as workers who must be covered, so a solo drywall installer working on construction in Ontario should register with the WSIB and confirm whether any narrow exemption applies to the exact work, rather than assuming there is none to check. Every other province has its own board with its own registration trigger, so register with the board in the province where your crew works, before the crew's first shift. General contractors will ask for your clearance certificate before you set foot on their site, so keep it current, and never send a subcontractor on site without checking that subcontractor's clearance first.

How do drywall businesses price jobs?

Boarding by the square foot, finishing as its own price, and everything unusual as a named extra. The boarding price covers hanging the sheets, quoted after measuring the walls and ceilings and checking the framing. Taping and finishing price separately, because the number of coats and the standard of finish drive the labour. Bulkheads, curves and arches, soundproofing assemblies, high ceilings that need scaffolding or lifts, and repairs, which price per patch or per job depending on size, are extras, named in the quote before work starts. A quote that hides the finishing standard until the invoice is a dispute, not a price. A deposit before work starts is normal, and the balance on completion after the walk-through is normal too. In Alberta, remember that taking that deposit on a residential job can trigger the prepaid-contractor licence, so check the Service Alberta rule before taking the first deposit.

What safety training does a drywall crew actually need?

Three kinds come up on almost every job. First, dust: sanding joint compound makes fine dust, so control it at the source where the tool allows it, keep the area ventilated, and wear the respiratory protection the product safety data sheet calls for. Second, working at heights: in Ontario, a worker on a construction project who uses fall protection must complete Chief Prevention Officer approved working at heights training, and fall protection is required where a worker may fall more than 3 metres, which covers high ceilings and stairwells. Other provinces have their own fall protection rules, so check the rule where the job sits before the crew climbs. Third, WHMIS: any worker who handles or may be exposed to a hazardous product must be trained on that product's labels and safety data sheets, which for a drywall crew means joint compound, adhesives, and primers. In an older home, do not tear out suspect old plaster or board before checking whether it may contain asbestos: have it tested, and do not disturb it until you know what it is.

Keep going

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