Choosing the right renovation contractor in Singapore can mean the difference between a dream home and a costly nightmare. The average HDB renovation costs $40,000–$70,000, and picking the wrong contractor is the number-one reason projects go over budget or drag past deadline. This guide walks you through exactly how to vet, compare, and hire a renovation contractor — whether you are renovating an HDB flat, condo, or landed property.

Why your choice of contractor matters

Your renovation contractor controls the quality of workmanship, the project timeline, and ultimately how much you spend. According to the Consumers Association of Singapore (CASE), renovation disputes consistently rank among the top complaint categories each year. Common issues include incomplete work, poor finishing, unexpected cost overruns, and contractors disappearing mid-project.

A reliable contractor gives you a detailed quotation, sticks to agreed timelines, communicates proactively about delays, and provides a proper warranty. An unreliable one may cut corners on materials, subcontract work without telling you, or demand large upfront payments before starting. The stakes are high — especially for first-time homeowners.

Types of renovation contractors in Singapore

Not all renovation contractors are the same. Understanding the different types helps you match the right professional to your project scope and budget.

For HDB flats, you must use an HDB-registered renovation contractor for any work involving hacking, electrical rewiring, or plumbing changes. You can verify registration through the HDB InfoWEB. For condos, your contractor must comply with your Management Corporation Strata Title (MCST) rules — this body governs renovation hours, permitted works, and deposit requirements. Landed property renovations may require URA planning permission for additions and alterations.

How to vet a renovation contractor (step-by-step)

Step 1: Check licences and registration Every renovation contractor working on HDB flats must be HDB-registered. For general building works, check if they hold a BCA licence. Ask for their registration number and verify it online. This is non-negotiable — unlicensed contractors have no accountability if things go wrong.

Step 2: Review their portfolio Ask for at least five completed projects similar to yours. A contractor experienced with 4-room HDB flats may not be the best fit for a landed property rebuild. Look for consistency in quality and pay attention to before-and-after photos.

Step 3: Get at least 3 quotes Request detailed quotations from at least three contractors. Each quote should break down costs by room and work type — not just a lump sum. Compare like-for-like: materials, brands, and scope.

Step 4: Check reviews and references Read online reviews on platforms like Google and Facebook. Ask the contractor for two to three references you can contact directly. Speaking to past clients tells you more than any brochure.

Step 5: Understand the payment schedule A fair payment schedule ties payments to project milestones — not calendar dates. Never pay more than 10% upfront. The industry standard is a progressive payment structure.

Renovation contractor cost comparison 2026

Renovation costs in Singapore vary widely based on property type, scope, and contractor tier.

These figures include design fees, materials, labour, and project management. They exclude furniture, soft furnishings, and appliances unless specified in your package. Always confirm what is included and excluded in your quotation.

Red flags to watch out for

Even experienced homeowners can miss warning signs. Here are the most common red flags:

The Defects Liability Period (DLP) is the window after handover (typically 12 months) where your contractor must fix any defects for free. Ensure this is stated in your contract.

Key takeaways

Choosing the right renovation contractor requires diligence, but the effort pays off. Verify licences, review portfolios, compare multiple quotes, understand the payment schedule, and never skip the written contract. With these steps, you can avoid the most common pitfalls and ensure your renovation stays on budget and on schedule.