15 Questions to Ask an Interior Designer Before Hiring
Choosing an interior designer is one of the most consequential decisions you’ll make during a renovation. Get it right, and the entire process is smoother, the results are better, and you’ll wonder why anyone attempts it without professional help. Get it wrong, and you’re looking at wasted money, missed timelines, and a home that doesn’t feel like yours.
As a MIID-certified interior architect with over 15 years in practice, I’ve been on both sides of this conversation many times. Here are the 15 questions I’d ask if I were hiring a designer — and what to listen for in the answers.
1. Are You Registered with MIID or BLIA?
Why it matters: In Malaysia, the interior design profession is regulated. The Malaysian Institute of Interior Designers (MIID) and the Board of Lembaga Arkitek Malaysia (LAM) for architects maintain professional standards. A designer registered with a recognised professional body has met education requirements, adheres to a code of ethics, and can be held accountable.
What a good answer sounds like: They should be able to give you their registration number and confirm their current membership status. If they hesitate, change the subject, or say registration doesn’t matter — that’s a red flag.
The nuance: Not every talented designer is MIID-registered, and registration alone doesn’t guarantee great design. But it tells you they’ve invested in their professional standing and have something to lose if they behave unprofessionally.
2. Can I See Completed Projects — Not Just Renders?
Why it matters: Anyone with access to 3D rendering software can produce beautiful images of a kitchen that doesn’t exist. What you need to see is the finished, built reality. How does the design translate from screen to physical space? How do the materials look in real light? How does it hold up after the client has lived in it?
What a good answer sounds like: They should have a portfolio of completed, photographed projects. Ideally, they’ll show you a range — different budgets, different styles, different space types. If every image in their portfolio is a render, ask specifically for photos of built work.
Bonus: If they can show you before-and-after documentation of a project, that’s excellent. It demonstrates their ability to see potential in a space and execute a transformation.
3. What’s Your Design Process from Start to Finish?
Why it matters: A clear process indicates experience and professionalism. You want to know what you’re signing up for — how many meetings, what deliverables, what milestones, what decisions you’ll need to make and when.
What a good answer sounds like: They should walk you through defined phases — typically: initial consultation, space planning, concept development, design development, material selection, documentation, contractor tendering, site supervision, and handover. Each phase should have clear outputs and your involvement should be defined.
Red flag: If the answer is vague — “we’ll just figure it out as we go” — that’s a recipe for scope creep, budget overruns, and a project that drags on indefinitely.
4. How Do You Charge — and What Does the Fee Include?
Why it matters: Pricing structures vary significantly across the industry, and misunderstanding the fee structure is one of the biggest sources of conflict between designers and clients.
Common fee models in Malaysia:
- Percentage of renovation cost (typically 10-20% of the total construction/renovation budget)
- Fixed fee per square foot (varies by project type and complexity)
- Lump sum project fee (agreed upfront based on scope)
- Hybrid models combining a design fee with a percentage or markup on procurement
What to clarify: Does the fee include site visits? How many design revisions are included? Are 3D renders included or charged separately? Is furniture procurement part of the service or additional? Is GST included?
Get this in writing before you proceed. Every sen should be accounted for.
5. Who Manages the Contractor?
Why it matters: Design and construction are two different disciplines. Some designers hand you a set of drawings and leave you to find and manage your own contractor. Others manage the entire construction process. You need to know which model you’re getting.
What a good answer sounds like: Either “I manage the contractor directly, including site visits, progress checks, and quality control” or “I work with trusted contractors I’ve built relationships with and supervise the work” — both are acceptable. What’s important is that someone qualified is checking that the contractor builds what was designed.
Red flag: “I’ll introduce you to a contractor and you deal with them directly.” Unless you’re experienced in construction management, this usually ends badly. Details get lost, substitutions happen without your knowledge, and the design intent evaporates.
For a deeper comparison between working with a designer versus going directly to a contractor, see my guide on interior designer vs contractor.
6. What Happens When Things Go Wrong on Site?
Why it matters: Things always go wrong. Hidden structural issues, delayed material deliveries, contractor errors, unexpected costs. The question isn’t whether problems will arise — it’s how the designer handles them.
What a good answer sounds like: They should describe a clear process: how they identify issues, communicate them to you, present options, and resolve them. Good designers anticipate common problems and build contingencies into their plans.
Red flag: “Nothing goes wrong on my projects.” That’s either dishonest or delusional. Experienced designers acknowledge that problems are normal and demonstrate how they solve them efficiently.
7. How Many Projects Are You Handling Right Now?
Why it matters: An overloaded designer means delayed responses, missed site visits, and divided attention. You want your project to get adequate focus.
What a good answer sounds like: Most solo practitioners or small firms handle 3-6 projects simultaneously at various stages. If they’re juggling 15 projects with a team of two, your project will not get the attention it deserves.
The balance: You also don’t necessarily want a designer with zero current projects — that could indicate they’re just starting out or struggling. A healthy workload suggests both competence and demand.
8. Can I Visit One of Your Current Project Sites?
Why it matters: A current site visit tells you things a polished portfolio never will. Is the site organised? Are workers professional? Is the designer genuinely involved in supervision, or is it chaos? You’ll also get a sense of build quality mid-process — how clean the work is before it’s prettied up.
What a good answer sounds like: A confident designer will welcome this. They may ask you to visit at a specific time (to coordinate with the contractor and ensure safety), but they shouldn’t refuse.
Red flag: If they flat-out refuse or make excuses every time you ask, ask yourself why they don’t want you to see their work in progress.
9. What’s Included in Your Fee — and What’s Extra?
Why it matters: This is different from Question 4. Here, you’re digging into the specifics. Many disputes arise because the client assumed something was included and the designer assumed it was extra.
Clarify these specifically:
- Are 3D renders/visualisations included? How many rooms?
- Are material and finish selections included, or do you charge for sourcing?
- How many design revision rounds are included before additional fees apply?
- Are site visits during construction included? How many?
- Is furniture and accessory sourcing/styling part of the service?
- What about electrical and plumbing layout drawings?
- Is the contractor tendering process (getting quotes, comparing) included?
Get a detailed breakdown in the proposal. Ambiguity is not your friend.
10. How Do You Handle Budget Overruns?
Why it matters: Budget overruns are common in renovations. The designer’s approach to managing your budget reveals a lot about their professionalism and integrity.
What a good answer sounds like: They should describe how they establish a realistic budget at the outset (including a contingency of typically 10-15%), how they track costs during the project, and how they communicate with you if the budget is trending over. Good designers present options: here’s what we can adjust to stay on budget, here’s what the overage is if we proceed as planned.
Red flag: “Don’t worry about the budget, we’ll make it work.” That almost always means the budget will be exceeded and you’ll find out too late.
11. Do You Have Professional Indemnity Insurance?
Why it matters: Professional indemnity insurance protects you if the designer makes an error in their professional services that results in financial loss — for example, a specification error that leads to costly rework, or a design decision that causes structural problems.
What a good answer sounds like: “Yes, I carry professional indemnity insurance with [provider] for up to [amount].” They should be willing to provide evidence of current coverage.
Reality check: Not all designers in Malaysia carry this insurance, particularly smaller firms and independent practitioners. It’s not a legal requirement. But having it demonstrates a level of professionalism and accountability that’s reassuring, especially on larger-budget projects.
12. Can I Speak to a Past Client?
Why it matters: Online reviews can be curated, cherry-picked, or even fabricated. Speaking directly to someone who has been through the process gives you unfiltered insight into what working with this designer is actually like.
What to ask the reference:
- Was the project completed on time and on budget?
- How was communication throughout the process?
- Were there any problems, and how were they handled?
- Would you hire them again?
- Is there anything you wish had been different?
What a good answer sounds like: A confident designer will gladly connect you with past clients. They should offer at least two or three references from recent projects.
13. What’s Your Realistic Timeline for My Project?
Why it matters: Timelines in Malaysian renovations are notoriously flexible, and that ambiguity causes enormous stress. You need a designer who sets realistic expectations upfront and has the project management skills to deliver.
What a good answer sounds like: They should break the timeline into phases — design phase (typically 4-8 weeks), contractor tendering (2-3 weeks), construction (varies by scope, but a typical condo renovation is 8-12 weeks, a landed home renovation 12-20 weeks), and defect rectification (2-4 weeks post-handover). Total: roughly 4-8 months depending on scope.
Red flag: “We can have your whole condo done in 6 weeks, design to completion.” Unless it’s a cosmetic refresh, that’s unrealistic and suggests corners will be cut.
For a more detailed renovation timeline, see my how to hire an interior designer guide.
14. How Do You Handle Design Changes Mid-Project?
Why it matters: Almost every client changes their mind about something during the project. That’s normal and expected. The question is whether the process can accommodate changes gracefully or whether every change triggers chaos and conflict.
What a good answer sounds like: They should explain their change order process — how changes are documented, how the cost and timeline impact is communicated, and at what point changes become impractical (once materials are ordered or construction has passed a certain stage).
What to understand: Changes cost money and time. A good designer helps you understand the implications before you decide, rather than either refusing all changes or blindly accommodating them without warning you of consequences.
15. What Happens After Handover?
Why it matters: The relationship shouldn’t end when the last picture is hung. Post-handover support — defect rectification, warranty management, maintenance guidance — separates professionals from fly-by-night operators.
What a good answer sounds like: They should describe a defect liability period (typically 1-3 months after handover) during which they’ll address any issues with workmanship. They should explain how warranty claims on materials and equipment are handled. And ideally, they should remain available for follow-up questions even after the formal project is closed.
The real test: Ask them if any past clients have called them a year later with a problem. A good designer will smile and say yes — because maintaining client relationships is part of how they build their reputation and referral network.
The Question Behind All These Questions
What you’re really trying to assess with these 15 questions is trust. Can you trust this person with a significant portion of your savings and with the outcome of your home? The technical answers matter, but equally important is how they communicate, how transparent they are, and whether they make you feel heard.
If a designer answers all 15 questions confidently, clearly, and honestly — including admitting the things they don’t know or can’t guarantee — that’s a very good sign.
I’m always happy to have this conversation openly. If you’re in the process of choosing a designer and want to run through these questions with me, reach out anytime. I’d rather you make an informed decision — even if it’s not me — than hire blindly and regret it.