Interior Design Pre-Booking Checklist: 12 Must-Ask Questions

28 May 2026 · 6 min read · Interior Design

Renovating your HDB flat or condo can be exciting, but choosing the wrong interior designer can turn your dream home into a financial nightmare. With interior design packages ranging from $30,000 to $150,000+ in Singapore, asking the right questions upfront can save you thousands and months of headaches.

Here's your comprehensive interior design pre-booking checklist to ensure you're making the smartest choice for your home and wallet.

black pen on white printer paper
Image credit: Akhmad Muzakir / Unsplash

Pricing and Payment Structure

1. What's included in your quoted price?

Why it matters: Many designers quote attractive base prices but charge extra for essentials like 3D drawings, site supervision, or minor changes.

Good answer sounds like: "Our $45,000 package includes space planning, 3D renderings, project management, all carpentry work, painting, flooring, and basic electrical/plumbing modifications. Additional costs only apply for premium material upgrades or major structural changes."

Walk away if: They can't provide a detailed breakdown or keep mentioning "additional charges may apply" without specifics.

2. What's your payment schedule?

Why it matters: Legitimate designers follow industry-standard payment milestones tied to work completion, not upfront lump sums.

Good answer: 10-20% deposit, 30-40% upon work commencement, 30-40% at 50% completion, balance upon completion and defect rectification.

Red flag: Asking for more than 30% upfront or full payment before work completion.

3. How do you handle cost overruns?

Why it matters: Singapore renovation projects can exceed budgets by 15-30% without proper controls.

Good answer: "We provide a detailed cost breakdown and seek written approval before any additional work. Minor variations under $500 are documented and discussed weekly."

Avoid: Vague responses like "We'll sort it out later" or no clear variation order process.

Credentials and Experience

4. Are you registered with RCMA or other industry bodies?

Why it matters: Registration with the Renovation Contractors and Materials Association (RCMA) or similar bodies shows legitimacy and recourse options.

What to look for: Valid ACRA registration, BCA license for structural work, and professional association memberships.

Red flag: Operating without proper licenses or reluctance to show credentials.

5. Can I visit recent completed projects or speak to past clients?

Why it matters: Portfolio photos can be misleading. Seeing actual work quality and hearing client experiences reveals the real story.

Good response: Readily provides 2-3 recent client contacts and offers site visits to completed projects (with homeowner permission).

Warning sign: Only showing old work or refusing client references citing "confidentiality."

Project Scope and Timeline

6. What's your realistic timeline, including potential delays?

Why it matters: Singapore renovation timelines average 6-12 weeks for full HDB renovations, but delays are common during permit approvals or material delivery.

Honest answer: "Typical 8-week timeline, but HDB approval can add 2-3 weeks. We'll update you weekly on progress and any potential delays."

Unrealistic: Promising completion in 4 weeks for major renovations or not mentioning potential delays.

7. How do you handle defects and warranty?

Why it matters: Post-renovation issues are inevitable. The question is how quickly and professionally they're resolved.

Strong warranty: 1-year comprehensive warranty with 24-48 hour response time for urgent issues, clearly defining what's covered.

Weak coverage: No written warranty or only 3-6 months coverage with vague terms.

8. Who will supervise the daily work?

Why it matters: Many design firms subcontract everything. You want assurance that someone qualified is overseeing your project daily.

Good structure: Dedicated project manager visiting 2-3 times weekly, with direct contact details and regular photo updates.

Concerning: "We'll check in occasionally" or subcontractors managing themselves without oversight.

man in black t-shirt writing on white printer paper
Image credit: Thái An / Unsplash

Contract and Legal Protection

9. What happens if you go out of business mid-project?

Why it matters: Several Singapore renovation firms have closed suddenly in recent years, leaving homeowners with incomplete projects and lost deposits.

Protection measures: CASE-endorsed contracts, renovation insurance, or escrow payment arrangements.

Risk indicator: Avoiding this question or having no contingency plans.

10. Are your workers covered by insurance?

Why it matters: Accidents happen. You don't want to be liable for worker injuries or property damage.

Must-have: Comprehensive workman compensation and public liability insurance, with certificates provided.

Avoid: No insurance or expired policies.

Communication and Process

11. How often will you communicate progress updates?

Why it matters: Poor communication is the top complaint about renovation projects. Clear expectations prevent frustration.

Professional approach: Weekly progress reports with photos, immediate notification of delays or issues, and dedicated WhatsApp group for quick updates.

Poor communication: "Call us if you need updates" or sporadic contact.

12. What's your process for design changes during renovation?

Why it matters: Most homeowners want modifications once work begins. Understanding the change process and costs upfront prevents disputes.

Clear process: Written change orders with cost implications, 24-48 hour response time for decisions, and impact on timeline explained.

Problematic: No formal change process or verbal agreements only.

The Bottom Line

Don't rush into signing contracts, even with attractive introductory offers. Take time to ask these questions and compare responses from at least three interior design providers.

Remember: The cheapest quote often becomes the most expensive renovation. Focus on value, transparency, and professionalism rather than just price.

Budget RangeTypical ScopeKey Focus Areas
$30,000-$50,000Basic 4-room HDB renovationEssential questions 1, 2, 6, 10
$50,000-$80,000Mid-range renovation with custom carpentryAll questions, especially 3, 7, 8
$80,000+Premium renovation or condo projectsFull checklist mandatory, focus on 4, 5, 9

Trust your instincts. If a designer seems evasive, pressures you to sign immediately, or can't answer these basic questions professionally, keep looking. Your home deserves better.

Ready to find the right interior designer for your project? Get free quotes from verified providers on KakiList and make informed comparisons using this checklist.

a large kitchen with a marble island and white cabinets
Image credit: Zac Gudakov / Unsplash

Need help finding the right provider?

Get free, no-obligation quotes from verified interior design providers in Singapore.

Get Free Quotes →

← Back to all articles