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Small Plumbing Jobs

Small Plumbing Jobs near you

Small plumbing tasks, done by a licensed provider where required. Tell us about your small plumbing project and we’ll help you find local plumbers who serve your area.

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This type of work often has to be done by a licensed or certified trade. Ask to see licences and proof of insurance before work starts.
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Small plumbing jobs are the fixes that take an hour or two but still involve the water system: a faucet that drips, a toilet that keeps running, a bathroom sink that drains slowly, a shut-off valve that weeps or won't turn, a supply line that has started to bulge, or a P-trap leaking into the cabinet. None of them is a renovation, and most need only a few parts, but each one touches pressurized water or the drain, where a poor connection can cause damage slowly and out of sight.

The catch is who may do them. Plumbing is regulated work, and the rules differ by province: in Quebec, as soon as anyone other than the owner of the single-family home they live in does the work, it has to go to a licensed contractor. That is why many handymen stop at the sink cabinet door, and why a list of small plumbing tasks is often best handed to a plumber in a single visit.

This page covers the jobs that usually fall into this category, the licensing lines, how to recognize a small leak that is really a symptom of something larger, and how to prepare so one visit covers everything.

Common small plumbing jobs: dripping faucets, running toilets, slow drains, valves and supply lines

  • Dripping faucet: usually a worn cartridge, washer or O-ring, replaced with the matching part for that faucet model.
  • Running toilet: a flapper, fill valve or float that no longer seals or shuts off, wasting water silently between flushes.
  • Slow drain: hair and soap in a bathroom sink or tub, or grease in a kitchen trap, cleared mechanically at the stopper or trap.
  • Shut-off valves: old multi-turn stops under sinks and toilets that seize, weep at the stem or don't close fully, replaced with quarter-turn valves.
  • Supply lines: the flexible connectors from the valve to a faucet or toilet, replaced when they bulge, kink, stiffen or corrode near the ends.
  • P-traps: the curved drain under a sink, resealed or replaced when a slip joint leaks, the plastic cracks or an old metal trap corrodes through.
  • Small extras: a new toilet seat, a showerhead or a faucet aerator, easy to add to the same visit.

Which small plumbing jobs need a licensed plumber: Quebec's rules and other provinces

Quebec draws the clearest line. The CMMTQ explains that a person may do plumbing and heating work themselves without a licence, except on gas or oil equipment, only in the single-family home they live in, that the work must still meet the codes and standards in force, and that it must be declared to the Régie du bâtiment du Québec. As soon as the work is entrusted to someone else, it must go to a CMMTQ member contractor holding the appropriate RBQ licence, and the CMMTQ adds that even unpaid help from someone without that licence breaks the rule. In practice, a Quebec handyman can hang the towel bar but shouldn't replace the shut-off valve beside it.

Other provinces set their own rules through the provincial trade certification body and the municipality, and they don't all draw the line in the same place. Before booking anyone who isn't a plumber, ask whether the job counts as plumbing work where you live, whether a permit applies and whether your home insurer has conditions. Replacing a worn part with an identical one is generally treated differently from adding a fixture or changing a pipe, which plumbing codes govern.

When a small leak points to a bigger plumbing problem

A drip under a sink is usually just a drip, but some small leaks are the visible end of something larger. The City of Toronto suggests an easy check for hidden leaks: turn off every indoor and outdoor tap and watch the water meter, since any movement of the flow indicator while no water is being used may mean a leak somewhere in the house.

  • The same fitting leaks again soon after a repair, which can point to water pressure that is too high or a pipe corroding around the joint.
  • Green, white or rusty crust builds up on valves and fittings, a sign of slow weeping that has gone on for a while.
  • Stains, soft drywall or a swollen cabinet floor appear under a fixture, meaning water has been escaping longer than the drip suggests.
  • Drains gurgle or pipes bang at several fixtures at once, pointing to the drain, the vent or the pressure-reducing valve rather than one fixture.
  • The meter moves with everything turned off, or the water bill rises without any change in how the household uses water.
  • A musty smell lingers under a sink or behind a toilet after the area has dried.

Bundling small plumbing jobs into one plumber visit

A single visit that covers several small jobs makes better use of a plumber's time than a string of separate calls. The water goes off once, the valves that make every other repair easier can be replaced first, and the plumber can look over the rest of the system while on site.

  • List every drip, slow drain and stiff valve in the house, including outdoor taps and the laundry area.
  • Photograph each fixture, any model label, and the pipes and valves underneath it.
  • Decide whether you will supply parts or want the plumber to bring them, since cartridges and fill valves depend on the model.
  • Ask to have old multi-turn stops swapped for quarter-turn valves while the water is off anyway.
  • Empty the sink cabinets and clear the area around the toilets, the water heater and the main shut-off before the visit.
  • Ask for a written note of anything found that needs a separate, larger repair.

Parts for small plumbing jobs: supply lines, quarter-turn valves and P-trap kits

Small plumbing parts come in a handful of sizes and connection types, and the wrong one is the usual reason a quick job turns into a second trip. A plumber matches them on site; if you buy parts yourself, take the old part or a clear photo of it to the store.

  • Supply lines are sold by length and by the connection at each end, and faucet and toilet connectors are not interchangeable.
  • Shut-off valves attach by compression, threads, solder or push-fit, depending on whether the pipe is copper, plastic or older galvanized steel.
  • Sink and tub traps come in different diameters, and plastic and metal traps join in different ways.
  • Cartridges, flappers and fill valves are specific to the faucet or toilet model, so the make and model matter more than the size.
  • A corroded or undersized pipe stub may have to be replaced before a new valve can go on, which takes the job beyond a small repair.

Scald protection on a small-jobs visit: water heater temperature and mixing valves

One small adjustment carries outsized stakes. The Government of Canada recommends keeping the water heater at 60°C (140°F) to prevent the growth of bacteria such as Legionella, and fitting automatic mixing valves on showers, tubs and faucets, or an anti-scald mixing valve at the water heater, set to deliver 49°C (120°F).

A plumber already on site for small repairs can measure the temperature at the tap, reset the limit stop on a shower valve or quote a mixing valve. It is worth adding to the list in a home with young children or older adults, since the same guidance warns that a child's skin burns in a quarter of the time an adult's does.

Small Plumbing Jobs: frequently asked questions

Can a handyman do small plumbing jobs?

It depends on the province. In Quebec, the CMMTQ says plumbing done for someone else must go to a licensed member contractor, however small the job and even if it is unpaid. Elsewhere, ask the provincial trade body or your municipality; many handymen stick to non-plumbing tasks and refer the rest to a plumber.

Is it worth calling a plumber for a dripping faucet?

Yes, if you can't find the right cartridge, the valve under the sink won't close, or the drip comes back soon after a repair. Adding it to a list of other small jobs makes the visit worthwhile.

How can I tell if I have a hidden leak?

Turn off every tap inside and outside and watch the water meter, as the City of Toronto suggests: if the flow indicator moves, water is escaping somewhere. A running toilet is a common culprit, so check the toilets next, then call a plumber if the meter still moves.

Should I replace the rubber supply hoses under my sinks?

Replace any that bulge, kink, crack or show corrosion at the ends, and consider doing them all at once in an older house. A supply line bursting under pressure can release a lot of water quickly, so it is worth checking them on any small-jobs visit.

Can I pour chemical drain cleaner into a slow drain?

It's best avoided. Harsh chemicals can damage older pipes and trap joints, and they make the job hazardous for whoever opens the trap afterward. Clean the stopper and trap mechanically, or book a plumber if the drain stays slow.

Sources

  1. CMMTQ: Can you do your own plumbing and heating work?
  2. Régie du bâtiment du Québec: Plumbing licence
  3. City of Toronto: Water leaks, costs and how to spot a leak
  4. Government of Canada: Water temperature and burns/scalds

Written by the LokalMatch editorial team. Last reviewed September 10, 2026.

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What affects the cost of small plumbing

Prices depend on the details of your project. We only publish price ranges when they’re backed by real LokalMatch quote data or reliable sources. Until then, here’s what usually changes the price:

  • Number and type of tasks
  • Time needed and any minimum visit charge
  • Materials and parts
  • Wall type and what's being mounted or hung
  • Height and access

How to compare plumbers before you hire

  • Describe all the small jobs up front so the handyman can bring the right tools and give you a realistic estimate.
  • Ask whether they charge by the hour, by the job or with a minimum visit fee.
  • For anything involving wiring, gas or new plumbing, use a licensed trade instead of a general handyman.
  • Check that they carry liability insurance, especially for work on ladders or on the exterior.
  • Ask whether they supply materials or whether you should buy them ahead of time.

Questions to ask plumbers before you hire

  • Do you charge by the hour or by the job, and is there a minimum?
  • Can you do all of the jobs on my list, or will some need a licensed trade?
  • Will you bring the materials, or should I buy them?
  • Are you insured if something is damaged while you're working?
  • How do you handle it if a job takes longer than expected?

Small plumbing permits and local rules

Some small plumbing work needs a permit or has to meet local bylaws. Rules vary by municipality, so ask your pro whether a permit is needed and who will apply for it — and check with your city or town if you’re unsure.

Permits and licensing

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