Renovating three bathrooms in Ottawa typically runs $42,000 to $90,000 or more, and two bathrooms usually land between $28,000 and $60,000 — but the per-bathroom cost drops when you do them together rather than one at a time. That's the whole point of bundling: shared mobilization, one set of permits, bulk material orders, and a contractor who's already on site all trim the price compared with three separate projects a year apart. The exact number depends on how far you go — a cosmetic refresh of a powder room and two full baths sits at the low end, while gutting and reconfiguring a primary en...
Multiple-bathroom projects are priced per bathroom, then adjusted down for the efficiencies of doing them together. As a planning baseline in the Ottawa market: a powder room refresh runs roughly $4,000–$9,000, a mid-range full bathroom $15,000–$28,000, and a high-end or reconfigured bathroom $28,000–$45,000+. Multiply across the number of bathrooms, then expect a modest discount for bundling. Here are rough combined ranges for common scenarios: • Two mid-range full bathrooms — $28,000–$55,000 • Three bathrooms (two full + one powder) — $34,000–$65,000 • Three full bathrooms, mid to high range — $50,000–$90,000+ • Whole-home refresh across 3–4 bathrooms with reconfiguration — $75,000–$140,000+ These are total-project figures including labour, materials, fixtures, and typical permit costs, but they move a lot with fixture selection and whether you're moving plumbing. Get itemized quotes before you set a budget.
Where the money goes on a typical full bathroom, so you can see what scales: • Demolition and disposal — $800–$2,000 per bathroom • Plumbing rough-in and fixtures — $2,500–$7,000+ per bathroom • Electrical (lighting, fans, GFCI, heated floor) — $1,000–$3,500 • Tile supply and installation — $2,500–$8,000 • Vanity, counter, sink, faucet — $1,200–$5,000 • Tub or shower unit — $1,500–$6,000+ • Waterproofing, drywall, paint, trim — $1,500–$4,000 Across three bathrooms these repeat, which is exactly why bundling saves money on the fixed costs around them.
Doing three bathrooms together is cheaper per bathroom than three separate projects because several costs are fixed per mobilization, not per room. A contractor sets up, orders materials, coordinates trades, and pulls permits once instead of three times. The concrete savings: a single mobilization and site setup rather than three; one bulk tile and fixture order, which often unlocks supplier pricing you don't get on a single-room quantity; trades (plumber, electrician, tile setter) who make one trip and stay productive moving room to room instead of billing minimum call-out charges three times; and one permit application covering the work where a permit is needed. Contractors also price a bundled job more competitively because it's efficient for them — a multi-week booking with predictable scope beats chasing three small jobs. Realistically, bundling can shave 10–20% off what the same three bathrooms would cost done individually over a few years, before accounting for inflation on materials and labour between projects.
The single biggest lever on bundle savings is repeating the same tile, vanity line, faucet, and fixtures across bathrooms. Ordering the same 12x24 porcelain tile for three rooms gets you volume pricing and less waste; three different tile choices means three small orders at retail-ish pricing. You can still differentiate — a nicer finish in the ensuite, simpler in the basement — but a shared palette with a few upgrades captures most of the efficiency without making every bathroom identical.
The spread between the low and high ends comes down to a handful of factors. Scope is the biggest: keeping the existing layout and swapping finishes is far cheaper than moving toilets, tubs, and drains. Moving plumbing means opening walls and floors and re-running supply and drain lines, which multiplies across every bathroom you reconfigure. Other drivers: fixture and tile grade (builder-grade to luxury can triple a bathroom's material cost); accessibility features like curbless showers, grab bars, and comfort-height fixtures; heated floors and upgraded ventilation; and the age and condition of what's behind the walls. In Ottawa's older neighbourhoods — Westboro, the Glebe, older Nepean stock — opening a bathroom wall often reveals dated plumbing, knob-and-tube wiring, or no waterproofing membrane, and bringing those up to current code adds cost you can't skip. A basement bathroom may also need a sump or ejector pump depending on drain elevation.
Cosmetic refreshes usually don't need a permit, but moving or adding plumbing fixtures, altering drains, or doing electrical work generally does. A multi-bathroom project that reconfigures layouts will typically involve plumbing and possibly electrical permits, and adding a brand-new bathroom (for example finishing a basement bath) has its own permit path. Your contractor should handle these, but confirm they're pulling the right permits — unpermitted plumbing and electrical can cause problems at resale.
Staging is where multi-bathroom projects succeed or fail as a household. The core rule: never take every bathroom offline at once. Sequence the work so at least one functioning toilet and shower is always available. The usual approach is to renovate one bathroom to a usable state before starting the next, or to overlap only the demolition phases while keeping one bath fully operational. A common sequence: finish the main or basement bathroom first so it becomes the household's working bathroom, then do the ensuite, then the powder room last. If you have only two bathrooms and both need work, phasing is essential — the house cannot function with zero working bathrooms for the weeks a full renovation takes. Talk through the staging plan with your contractor before signing; a good one will build the sequence around keeping you functional, and a bad one will gut everything at once and leave you showering at the gym for a month.
Doing all bathrooms in one continuous push captures the most bundle savings and gets the disruption over with fastest, but it's the hardest on the household. Phasing over a few months is gentler on daily life and cash flow but sacrifices some of the mobilization savings because trades may return in separate visits. For most families, a compromise works best: one continuous project window, but sequenced so a working bathroom is always available.
A multi-bathroom renovation is a bigger, more complex job than a single bath, so vet accordingly. Look for a contractor who has done multi-room bathroom work, can show you a realistic staging plan, and gives you an itemized quote that breaks out each bathroom plus the shared costs — that transparency is how you verify you're actually getting the bundle discount rather than three full-price quotes stapled together. Get at least three quotes and compare them line by line. Confirm the contractor carries liability insurance and WSIB coverage, verify their licensing where applicable, and check recent references for projects of similar scope. Ask specifically how they'll keep a bathroom available throughout, how they handle change orders if hidden problems surface behind the walls (likely in older Ottawa homes), and what the payment schedule looks like across a multi-week job. The larger the project, the more the contractor's project-management discipline matters — coordinating plumber, electrician, and tile setter across three rooms is where amateurs fall apart.
Expect roughly $42,000 to $90,000 or more for three bathrooms, depending on scope. Two full baths plus a powder room at mid-range finishes often lands around $34,000–$65,000, while three full high-end or reconfigured bathrooms push past $90,000. Doing them together typically costs 10–20% less per bathroom than three separate projects.
Two mid-range full bathrooms in Ottawa generally run $28,000–$55,000 total, or lower if one is a powder room. Layout changes, moving plumbing, and higher-end tile and fixtures push toward the top of the range. Bundling both into one project saves on mobilization, material orders, and trade call-outs versus doing them a year apart.
Yes. Fixed costs like site setup, permits, material ordering, and trade mobilization happen once instead of per project, and bulk material orders unlock better pricing. Realistic savings are around 10–20% per bathroom versus separate projects, plus you avoid material and labour inflation between phases. Standardizing finishes across bathrooms maximizes the discount.
Stage the work so at least one toilet and shower stay operational at all times. A common sequence is to finish one bathroom to usable condition first, make it the household's working bath, then move to the next. Never let a contractor gut every bathroom simultaneously unless you have an alternative you can live with for weeks.
One continuous project captures the most savings and gets disruption over fastest but is hardest on the household. Phasing is gentler but loses some mobilization savings. Most families do best with a single project window sequenced so a working bathroom is always available — the middle path between all-at-once and spreading it over years.
Cosmetic refreshes typically don't require a permit, but moving or adding plumbing fixtures, altering drains, or doing electrical work generally does. A multi-bathroom project that reconfigures layouts usually involves plumbing and possibly electrical permits, and adding a new bathroom has its own permit path. Confirm your contractor is pulling the correct permits.
Moving plumbing and reconfiguring the layout is the biggest driver, followed by high-end tile and fixtures, curbless or accessible showers, and heated floors. In older Ottawa homes, hidden issues behind the walls — dated plumbing, old wiring, no waterproofing — often add unavoidable cost once demolition exposes them.
A bundled three-bathroom project commonly runs 4–8 weeks depending on scope, staging, and how many layouts change. Phasing to keep a bathroom always available can extend the calendar. Delays usually come from custom-order fixtures, hidden repairs in older homes, and inspection scheduling, so build buffer into your timeline.