Plumbing companies run on permits pulled under a licensed individual's name, not the corporation's — so the question that shapes almost every plumbing sale in Ontario is whether enough of the seller's licensed plumbers are staying on to keep the business working under permit from day one.
Part of Trades & Construction — see the family overview.
Every figure below is a typical Canadian deal-market pattern, not a valuation — use it to sanity-check what you're being told.
| Metric | Typical benchmark | Use this to |
|---|---|---|
| Licensed staffing determines what you can actually keep doing | A plumbing company with several licensed plumbers on staff, not just the owner, gives a buyer more room to keep pulling permits without a licensing gap the day ownership changes.† | Count licensed staff, not total headcount, before you assume the business keeps running as-is. |
| Recurring service contracts price differently than project work | Maintenance agreements, backflow-testing programs, and repeat commercial service accounts typically carry a stronger multiple than a business built mainly on one-off new-construction or renovation jobs.† | Weigh the recurring share of revenue as heavily as the equipment and vehicle list. |
| Backflow and cross-connection compliance work adds a review layer | Where the business holds municipal backflow-prevention or cross-connection contracts, those come with their own compliance obligations that need to be reviewed on their own terms.† | Flag any municipal compliance contracts early, since they carry obligations beyond a standard service agreement. |
| Financed equipment and vehicles are common | A meaningful share of vans, cameras, and specialty equipment in this sector is financed rather than owned outright.† | Separate what's owned free and clear from what still carries a lien or lease payment. |
| WSIB standing is a closing gate | A clean WSIB clearance certificate is a standard closing condition in this sector.† | Confirm clearance status early, before it becomes a late surprise. |
Plumber licensing under the Ontario Building Code attaches to the individual, not the corporation — the buyer needs its own licensed plumbers in place before closing to keep pulling permits without interruption.
Permits already in progress on active jobs don't automatically follow a change of ownership — each one gets checked against the municipality's own requirements as part of closing, not assumed to carry over.
WSIB clearance is a standard closing condition here — confirming it early avoids a late surprise on an otherwise-ready file.
The same sequence underlies almost every plumbing company deal — what changes from deal to deal is how long each step takes, and which one becomes the bottleneck.
Reaching an agreement
The offer sets price and key terms — for a plumbing company it should build in the conditions that actually matter from day one, not just financing.
usually 1–2 weeks†The APS fixes price, structure — asset or share — and closing date, plus the reps, warranties, and holdbacks that protect you if diligence turns up something different than promised.
1–3 weeks to negotiate†Licensed plumber staffing, WSIB clearance, Service contracts, Equipment & vehicles (PPSA), Permits in progress all start moving at once, on separate clocks — this is usually where plumbing company deals are won or lost.
often the critical path†Getting to closing
Corporate, PPSA lien, and litigation searches confirm what you're actually buying; we chase down licence standing and records the seller doesn't always have to hand.
2–4 weeks, in parallel†Funds, keys, and signed documents change hands, alongside any inventory count and interim authorizations that bridge the gap until final transfers are confirmed.
1 day, once conditions are met†We track final licence confirmation and the staff transition through to completion — nothing is left for you to chase once the deal is done.
1–2 week tail†This is the first real decision in almost every plumbing company deal — and it changes what you're buying, what you're taking on, and how it's taxed.
| Question | Asset purchase | Share purchase |
|---|---|---|
| What you buy | The business's assets — equipment, vehicles, service contracts, permits in progress, the trade name, and goodwill. | The shares of the corporation itself — everything it owns, and everything it owes. |
| Seller's liabilities | Generally stay behind with the seller's existing corporation. | Generally come with the company, known and unknown. |
| Licensed plumber staffing | The buyer needs its own licensed plumbers on staff before closing to keep working under permit. | If the seller's licensed staff stay on, the corporation can keep operating without a licensing gap; if they leave, the same staffing question applies. |
| Permits in progress | Reviewed job by job with the municipality; some may need to be reissued in the buyer's name. | Generally continue under the existing corporation without reissue, subject to the municipality's own rules. |
| WSIB clearance | A clearance certificate is typically obtained and reviewed as a condition of closing. | Clearance is reviewed the same way, alongside the corporation's full claims history. |
| Tax angle | Buyer gets a stepped-up cost base on the assets purchased. | Seller may access the lifetime capital gains exemption on qualifying shares. |
| Typical use in a plumbing company deal | The default for most single-owner plumbing businesses. | Less common — sometimes used to keep municipal compliance contracts or in-progress permits intact. |
The business's assets — equipment, vehicles, service contracts, permits in progress, the trade name, and goodwill.
The shares of the corporation itself — everything it owns, and everything it owes.
Generally stay behind with the seller's existing corporation.
Generally come with the company, known and unknown.
The buyer needs its own licensed plumbers on staff before closing to keep working under permit.
If the seller's licensed staff stay on, the corporation can keep operating without a licensing gap; if they leave, the same staffing question applies.
Reviewed job by job with the municipality; some may need to be reissued in the buyer's name.
Generally continue under the existing corporation without reissue, subject to the municipality's own rules.
A clearance certificate is typically obtained and reviewed as a condition of closing.
Clearance is reviewed the same way, alongside the corporation's full claims history.
Buyer gets a stepped-up cost base on the assets purchased.
Seller may access the lifetime capital gains exemption on qualifying shares.
The default for most single-owner plumbing businesses.
Less common — sometimes used to keep municipal compliance contracts or in-progress permits intact.
We tell you which structure fits — before you sign anything.
Different lists depending on which side of the deal you're on — both matter for how smoothly closing goes.
No open-ended hourly surprises — the cost is confirmed in writing before any work begins.
| Type of work | Fee | How it's confirmed |
|---|---|---|
| Straightforward purchase or sale | Starting from $3,388.87 Our charges · taxes included | Confirmed in writing once we see the agreement. |
| Larger or more complex deal | Quoted to scope | Short call → fixed written quote before any work begins. |
| Searches, filings & third-party fees | At cost | Itemized on your invoice, not marked up. |
A single-owner plumbing business with a couple of licensed plumbers, straightforward service work, and one buyer stepping in.
Start my file →A business with municipal compliance contracts, several permits open on active jobs, or a buyer who needs time to line up enough licensed plumbers to keep working without a gap.
Book a consultation →Not sure which you are? That's our job to figure out, not yours. As a rough guide, most deals under a couple of million dollars are the first kind — above that, you're usually in Mergers & Acquisitions territory.
†Typical patterns across Canadian deals — not a quote or advice; every deal is confirmed on its own facts.
It depends on who's on staff. If enough of the seller's licensed plumbers are staying on through the transition, work under existing permits can generally continue; if not, you need your own licensed plumbers confirmed before crews can keep pulling permits. That gets mapped out before closing, not discovered after.
Each municipality has its own rules — some permits continue under the existing corporation without any change, others need to be reissued in the buyer's name. That gets checked permit by permit as part of diligence, not assumed either way.
Recurring service work — maintenance agreements, backflow testing, repeat commercial accounts — typically carries a stronger multiple than one-off project or new-construction work, because it's revenue a buyer can reasonably expect to continue. That split gets weighed specifically, not blended into one number.
Not necessarily. Where the business holds municipal compliance contracts, those typically come with their own notice or renewal terms that need separate review — they're not treated the same as a standard service agreement.
On an asset sale, that exposure generally stays behind with the seller's existing corporation. On a share sale, it comes with the company, known and unknown — which is part of why structure gets chosen deliberately here.
| Resource | Official link |
|---|---|
| Skilled Trades Ontario Plumber trade licensing and certification status | Visit www.skilledtradesontario.ca |
| WSIB — clearance certificates Business account standing and clearance | Visit www.wsib.ca |
| Personal Property Security Registration (PPSR) Equipment and vehicle lien searches | Visit www.ontario.ca |
| Ontario Building Code — general guide Permits and licensed-trade requirements | Visit www.ontario.ca |
Where we close plumbing company deals
Tell us about your plumbing company deal — we'll point you the right way and confirm the cost in writing before any work begins.