It’s the first question on most renovations: do I actually need an interior designer, or can I just work with a contractor? Here’s a straight answer — when a designer earns their fee, when you might not need one, and what changes if you skip it.
The short answer
If your renovation involves moving walls, a new kitchen or bathroom, custom millwork, or more than one room at once — yes, a designer pays for themselves. If you’re doing a like-for-like swap (same layout, off-the-shelf finishes), you may not need one. The line is complexity: the more decisions and trades involved, the more a designer saves you.
When you really do need one
- You’re changing the layout. Moving walls, relocating plumbing, opening up a floor plan — these are decisions that are expensive to undo. A designer plans them once, on paper, before a wall is touched.
- It’s a kitchen, bathroom, or whole home. These have the most moving parts — cabinetry, stone, tile, lighting, fixtures, trades in sequence. That’s exactly where a coordinated plan prevents costly mistakes.
- You want it to feel finished, not just done. Proportion, light, materials that work together — that’s the difference between a renovation and a home that looks considered.
- You don’t have time to manage it. Sourcing, ordering, scheduling trades, catching problems early — a designer (or a design-build studio) carries that for you.
When you might not
A single-room refresh with the same layout, a coat of paint, or swapping a vanity for an identical one — you can often handle these with a good contractor and a clear idea. A designer is about decisions and coordination; if there are few of either, you may not need the full service. Even then, a one-time consultation can be worth it to get the big calls right.
What a designer actually saves you
The cost of a designer is almost always smaller than the cost of getting the renovation wrong. A plan that’s right the first time means walls aren’t moved twice, the right finishes are ordered once, and trades aren’t left waiting on a decision — that’s where renovations quietly save or waste money. The most expensive renovation is the one you have to redo.
How Studio Kimi works
Our base is a flat design fee set from your home’s square footage — one clear number, agreed before any work starts. Depending on the scope, we tailor the approach to suit the project, and as a design-build studio we can carry the whole thing from first sketch to final walk-through. We work across Mississauga, Oakville, Burlington and the wider GTA.
Not sure which side you’re on? We’ll tell you honestly whether your project needs a designer — and what it would involve.
Ready to start?