Start with the bathroom you have. Many Calgary homes, especially older bungalows in areas like Killarney, Mount Pleasant, and Renfrew, were built with small main-floor bathrooms and a tub-shower combo. Converting that into a low-curb or roll-in shower usually means opening walls, so you want an installer who checks the framing and the plumbing before quoting, not after. In condos and newer suburban builds out in the northwest or the deep south, layouts are tidier but you may need to clear changes with a condo board first.
For an older adult, we'd push you toward a true roll-in (zero-threshold) shower if the budget and drainage allow it, because it handles a walker or wheelchair now and later. A low-curb shower costs less and installs faster, but that small lip is exactly the thing people trip on, which defeats the point. Built-in seating and grab bars that anchor into blocking, a hand-held wand, and anti-scald controls should be standard, not add-ons you fight for. Anti-scald matters more here than people expect, since aging skin burns fast.
On who to hire: prioritize installers with real senior and accessibility experience, proper licensing and liability insurance, and a written warranty on both the product and the labour. Ask how fast they respond if a valve fails in January, because a cold snap and a broken shower is a genuine problem. In our experience the biggest regret isn't spending too much, it's hiring the cheapest general renovator who treats grab bars as decoration and mounts them into drywall.
Our recommendation: go with an accessibility specialist and the zero-threshold option, and get the waterproofing done properly the first time. The trade-off is honest, you'll pay more up front and the project takes longer than a quick tub cutout. But you're building something your parent can use safely for years, and installed accessibility work like this can qualify for the federal Home Accessibility Tax Credit, which softens the cost.
