Interior-design costs depend on the scope, location, professional, deliverables and purchasing arrangements. A design fee is separate from furniture and construction unless the proposal says otherwise. Compare written quotations for the same work; there is no single Canada-wide price that reliably fits every project.
Separate the three main budgets
Begin with professional services, goods and construction. Professional services may include consultations, design development, drawings, sourcing and review. Goods include furniture, appliances, lighting and materials. Construction includes trades, installation and associated site work. Your proposal should make the boundaries clear.
- Design and other professional fees.
- Furniture, fixtures, equipment and materials.
- Trades, installation and construction.
- Freight, storage, taxes and other disclosed costs.
- A separately chosen allowance for changes and unknowns.
Understand the fee model
An hourly arrangement charges for time; ask for an estimate, reporting and approval limits. A fixed fee applies to a defined scope; ask what counts as a revision or additional service. A staged fee follows agreed milestones. Procurement may be charged separately through fees or markups. Any of these can be understandable when the agreement explains how it works.
Why two quotes can look very different
A short consultation and a detailed renovation appointment are not comparable products. One designer may provide a concept and shopping list while another includes technical coordination, several rounds of drawings and site visits. Differences in experience, location, project complexity and responsibility also affect the proposal. Compare deliverables before comparing totals.
Questions that uncover missing costs
Ask whether measured surveys, additional consultants, permit submissions, travel, printing and construction review are included. For goods, check shipping, receiving, storage, installation, returns and damage claims. For construction, ask about demolition, disposal, temporary protection and work on existing services. Request a written list of exclusions.
Use your intended budget as a design constraint
Share the amount you are prepared to spend and explain whether it includes all fees and taxes. Prioritize the outcomes that matter most. Ask the designer to flag when an emerging direction is likely to exceed the allowance so that the scope can be reconsidered before purchases are committed.
Use the worksheet below with real quotations
The worksheet adds amounts you enter. It does not estimate market rates or recommend how much you should spend. Enter Canadian-dollar quotations, include taxes consistently and identify any amount that is still an allowance. The result is a planning total to discuss with the project team.
Project budget worksheet
Enter your own quotations or allowances in Canadian dollars. Include taxes consistently. This adds your figures; it does not estimate market rates.
Questions, answered.
Is a designer’s fee included in renovation costs?
Only when the written proposal expressly includes it. Design, consultant, contractor and product costs may be separate. Ask for a complete list of inclusions and exclusions.
Is a fixed fee better than an hourly fee?
It depends on the scope and how predictable the work is. A fixed fee needs clear deliverables and revision limits; hourly work needs reporting and an agreed approval process. Compare the terms as well as the amount.
Can you give me a guaranteed cost from the size of my room?
No. Room size alone does not describe the work, products, existing conditions or professional responsibilities. A useful estimate requires a defined scope and current quotations.