Hiring a bathroom contractor should feel exciting, not stressful. Yet if you’ve shopped around in Ottawa, you know how quickly things go sideways: vague quotes, delays, contractors who vanish halfway through. A bathroom involves plumbing, electrical, and waterproofing working together, so the wrong hire can turn into a costly repair. Before you sign anything, know what to ask, what a fair quote looks like, and which signs mean it is time to walk away. Use this hiring checklist to choose with confidence.
What a Bathroom Contractor Actually Does
Not every renovation pro handles bathrooms the same way. A handyman can handle small cosmetic fixes: a new vanity, a fresh coat of paint. A full bathroom renovation is a different scope, coordinated plumbing, electrical, tiling, and waterproofing, usually with three or four trades moving through the space in sequence. A plumber alone can move a drain or install a new toilet, but framing and tile layout aren’t part of that job.
Bathrooms need careful waterproofing, especially around showers, tubs, and drains. Gaps or poorly sealed transitions can allow moisture into walls or subfloors, increasing the risk of rot and mould. Qualified trades matter too. In Ontario, electrical contracting businesses must be licensed through the Electrical Safety Authority, while plumbing is a compulsory trade regulated through Skilled Trades Ontario. Your general contractor should hold those specific credentials directly, or bring in subcontractors who do.
Some projects call for a bathroom specialist. Condo bathrooms come with building rules and shared plumbing stacks to work around. A tub-to-shower conversion needs its own waterproofing and slope work, and a basement bathroom has to tie into existing drainage, often with a sump pump added in.
Know What You Need Before You Hire
Before you request quotes, get clear on your own project. Start with scope. Are you updating what is already there, or changing the layout entirely? Keeping the toilet, sink, and shower in their current spots keeps plumbing costs down, while moving them adds cost and time.
Next, set a realistic budget range for your bathroom type. A powder room or 2-piece bathroom costs less than a full 3-piece or 4-piece bathroom, and a tub-to-shower conversion falls somewhere in between depending on tile and glass choices. If your home is in one of Ottawa’s older neighbourhoods, like the Glebe or Old Ottawa South, build in some flexibility: homes from that era often still run on cast iron drains or galvanized supply lines, which a contractor may uncover once demolition starts. Knowing your scope and budget range up front helps you compare quotes accurately.
Questions to Ask Before You Sign
Once you have a shortlist of contractors, ask the same questions of each one so you can compare fairly.
A contractor who answers clearly and without hesitation is usually someone you can trust with the rest of the project. If someone dodges the license question or brushes off the warranty, treat that as useful information, not a small detail to overlook.
How to Compare Quotes Fairly
Two quotes for the same bathroom can look nothing alike on paper, and the difference is usually in how they’re built, not what they cost. A line-item quote shows you what you’re paying for labour, what for tile, what for fixtures. A lump-sum number hides all of that behind one line.
The gap usually shows up as the permit fee nobody put on the page, or the disposal cost added once the old tub is actually sitting in a dumpster. If one number comes in well below the rest, ask what’s missing from it before you assume you found a deal. Most of the time it’s waterproofing or material grade. Ask each contractor to write out exactly what’s included, then compare those lists side by side, not just the totals.
Red Flags to Walk Away From
A few warning signs mean it is worth pausing before you sign. Walk away if a contractor will not put the project in writing, since a verbal agreement gives you nothing to point to if something goes wrong. Be cautious of a deposit that is unusually large relative to the total project cost, especially before any work has started.
If you ask how they’re waterproofing the shower and the answer is “the usual stuff,” that’s not an answer. Same with permits: “we’ll figure that out” means the job hasn’t actually been planned yet. And if it takes three days to hear back now, before you’ve signed anything or paid a deposit, that’s as responsive as this contractor is ever going to be.
FAQs
Get a Free, No-Pressure Quote
Hiring the right bathroom contractor comes down to knowing your project, asking clear questions, and comparing quotes on scope rather than price alone. Watch for the red flags above, and choose a contractor who is upfront about licensing, permits, and warranty.
iBathrooms offers you a free online quote and a breakdown of bathroom renovation costs so you know what to expect.
About the Author
Arif
Sales & Customer Experience Lead
Arif is the first friendly face many of our clients meet at iBathrooms. He leads our sales process, handles initial inquiries, and guides homeowners through product selections, ensuring they feel confident and excited about their renovation journey.