Questions to Ask Your Renovation Contractor Before Signing 2026
Before signing any renovation contract in Singapore in 2026, ask your contractor about their HDB/BCA licensing, payment schedule (standard is 5-6 instalments, never more than 20% deposit), warranty terms (minimum 12 months for defects), project timeline with milestone dates, and who handles permits. Get written answers for renovation scope, material specifications, site supervision frequency, and dispute resolution process. A transparent contractor provides detailed quotations, insurance certificates, and past project references upfront—these questions separate professional direct contractors from risky operators.
Licensing, Registration and Legal Compliance
Start with the fundamentals that protect you legally. Your contractor must hold valid licences for your property type, and you need documented proof before signing anything.
HDB Licence Verification
If you're renovating an HDB flat, ask to see the contractor's HDB licence number and verify it on HDB's website. The licence must be current—not expired or suspended. HDB-licensed contractors are bonded and meet minimum financial and track record requirements. Ask how many HDB projects they've completed in the past 12 months. A credible contractor completes 20-50 HDB projects annually. Also confirm they'll handle the HDB renovation permit application on your behalf, which costs around SGD 20-40 and takes 3-5 working days.
BCA Registration for Landed Properties
For landed homes requiring Addition & Alteration (A&A) works, your contractor needs BCA registration under the appropriate grade (GB1 for projects above SGD 3 million, GB2 for projects up to SGD 3 million). Ask for their BCA registration certificate and grade. Structural works require a Qualified Person (QP)—typically a Professional Engineer (PE) or Registered Architect. Ask if the contractor has in-house QPs or works with external consultants, and who bears the cost (typically SGD 3,000-8,000 for PE certification).
Insurance Coverage
Request copies of the contractor's public liability insurance and workmen compensation insurance. Public liability should cover at least SGD 1-2 million for property damage and injury claims. Workmen compensation protects you if workers are injured on-site—without it, you could be liable. These certificates should be current and valid for your renovation period. If the contractor cannot produce them immediately, walk away.
Payment Terms and Financial Protection
Payment disputes are the number one source of renovation conflicts. Get absolute clarity on when and how much you'll pay before signing.
Payment Schedule Breakdown
Industry standard in Singapore is 5-6 progressive payments tied to work milestones. Never agree to more than 20% deposit—this is a major red flag. Ask for the exact payment schedule in writing. A typical breakdown looks like this:
| Payment Stage | Percentage | Milestone |
|---|---|---|
| Deposit | 10-20% | Upon contract signing |
| 2nd Payment | 25-30% | Hacking and demolition complete |
| 3rd Payment | 20-25% | Masonry, plumbing, electrical rough-in complete |
| 4th Payment | 15-20% | Carpentry installation complete |
| 5th Payment | 10-15% | Painting and flooring complete |
| Final Payment | 5-10% | Full project completion and handover |
Ask what happens if you're unsatisfied with a milestone—can you withhold payment until rectification? A professional contractor will have a clear defect rectification process before releasing subsequent payments.
Handling Variation Orders
Changes during renovation are common, but uncontrolled variation orders (VOs) inflate costs dramatically. Ask how VOs are handled: Do you get written quotations before work proceeds? What's the approval process? Is there a VO cap (e.g., maximum 10% of contract value)? Request that all VOs require your written approval with itemised costs before work begins. Contractors who verbally agree to changes then surprise you with bills at final payment are operating in bad faith.
What's Included vs Excluded
Ask explicitly what's included in the quoted price and what isn't. Common exclusions that catch homeowners by surprise include appliances, light fittings, curtains, homeowner-supplied materials, and permit fees. Ask about disposal fees for debris (typically SGD 300-800 for a 4-room HDB), hacking of existing tiles (SGD 3-6 per sqm), and whether existing furniture protection is included. Get the full picture in writing.
Project Timeline and Site Management
Delayed projects disrupt your life and sometimes cost you rental if you've already moved out. Pin down the timeline and accountability.
Start and Completion Dates
Ask for specific start and completion dates in the contract, not vague "8-10 weeks" estimates. A typical 4-room HDB renovation takes 6-8 weeks; a 5-room or executive flat takes 8-10 weeks; a condo takes 8-12 weeks depending on MCST requirements; a landed property can take 12-16 weeks or longer for extensive works. Ask what delays the contractor is responsible for versus force majeure events. Are there liquidated damages if the contractor causes delays? Some contracts specify SGD 50-100 per day penalty for contractor-caused delays beyond the agreed completion date.
Site Supervision and Project Management
Ask who supervises the site daily and how often they'll be present. Will you have a dedicated project manager or coordinator? How do you contact them—phone, WhatsApp, site visits? Professional contractors provide a single point of contact who responds within 24 hours. Ask how often you'll receive progress updates—weekly photos, site visits every few days, or formal progress reports? Also confirm working hours (HDB allows 9am-6pm weekdays, 9am-1pm Saturdays, no Sundays or public holidays) and whether the contractor respects quiet hours to avoid neighbour complaints.
Subcontractor Management
Most contractors subcontract specialised trades—electrical, plumbing, air-con, sometimes carpentry. Ask which trades are done in-house versus subcontracted. Who's responsible if a subcontractor does poor work or disappears? The main contractor should always be liable, not you chasing individual subcontractors. Ask if subcontractors are insured and whether the main contractor vets them for quality and reliability.
Materials, Workmanship and Quality Standards
Vague material descriptions lead to disappointment. Demand specificity on everything that goes into your home.
Material Specifications
Ask for exact material brands, models, and grades in the quotation. For example, "laminate" means nothing—is it Formica, Lamitak, or generic? Thickness matters: 0.8mm laminate chips easily; 1mm is standard; 1.2mm is premium. For tiles, ask about the grade (Grade 1 is best, Grade 2 has minor defects, Grade 3 is for walls only). For sanitary ware, ask for brand and model numbers. If the quotation says "branded" or "contractor's choice," insist on specific names or the right to approve selections before purchase.
Carpentry Materials and Construction
Since carpentry is typically 40-50% of renovation cost, dig deep here. Ask what carcass material is used—plywood (18mm is standard, marine ply resists moisture better but costs 30-40% more), MDF (cheaper but doesn't hold screws well), or particle board (avoid for kitchen cabinets). For doors, ask about solid or hollow core, thickness (35-38mm is standard), and hinge quality (soft-close adds SGD 15-25 per pair but worth it). If the contractor has their own carpentry factory, ask to visit and see sample work—this transparency indicates quality control.
Workmanship Guarantees
Ask about warranty duration and what it covers. Industry standard is 12 months for defects in workmanship and materials, but some contractors offer 24 months. Ask what's excluded—wear and tear, homeowner damage, and manufacturer defects are typically excluded. Also ask about the rectification process: How quickly do they respond to defect reports? Will they fix issues on-site or require shop repairs? Get this in writing; verbal promises evaporate when problems arise.
Permits, Compliance and Neighbour Considerations
Permit violations can result in stop-work orders, fines, and forced restoration. Ensure your contractor handles compliance properly.
Who Handles Permit Applications
Ask explicitly who applies for and pays for necessary permits. For HDB flats, the contractor should handle the HDB renovation permit (form HDB 1307). For condos, they should liaise with MCST for renovation approval and deposit (typically SGD 3,000-5,000 refundable). For landed homes with structural changes, the contractor should coordinate with the QP for A&A permit submission to BCA. If you're doing F&B renovations, ask about NEA requirements and who handles those applications. A professional contractor manages all permits as part of their service—if they expect you to handle permits yourself, reconsider.
Compliance with Building Regulations
Ask how the contractor ensures work complies with regulations. For HDB: no hacking of bomb shelter walls, no removal of window grilles without replacement, kitchen and toilet waterproofing must meet standards, aircon trunking size limits. For condos: no structural changes to external walls, balcony enclosed only if allowed, no changes to facade. Ask if the contractor will certify compliance in writing and whether they'll rectify at their cost if authorities flag violations.
Neighbour Management
Renovation noise and dust affect neighbours. Ask if the contractor will inform adjacent units before starting, maintain clean common areas, and control dust with plastic sheeting and daily cleaning. For condos, ask if they'll comply with MCST requirements like registered worker access, lift usage restrictions (often need to book service lift and protect it), and debris removal schedules. Good contractors protect your relationship with neighbours; poor ones create enemies for you.
Communication, Documentation and Dispute Resolution
Clear communication prevents most disputes. Establish expectations upfront about how you'll work together.
Contract Documentation
Ask to see a sample contract before committing. It should include scope of work, material specifications, payment schedule, timeline, warranty terms, and VO procedures. The quotation should be itemised by room and trade—lump-sum quotations hide what you're paying for and make VOs harder to assess. Ask if you can have 24-48 hours to review the contract with family or a lawyer before signing. Contractors who pressure immediate signing are rushing you for a reason.
Change Order Process
Ask how changes during renovation are documented. Will you receive written VO quotations before work proceeds? How long do you have to approve or reject? Can you request itemised breakdowns of VO costs? All changes should be documented in writing via email or WhatsApp with costs agreed before work begins—never rely on verbal agreements during site visits.
Dispute Resolution Procedure
Ask what happens if you disagree about work quality, timelines, or costs. Is there a mediation step before legal action? Some contractors include SIAC (Singapore International Arbitration Centre) or CASE (Consumers Association of Singapore) mediation clauses. Ask for the contractor's approach to complaints: Do they have a formal complaint process? Who investigates? How quickly do they respond? A contractor confident in their work will have clear, fair dispute resolution procedures.
Past Work, References and Red Flags
Talk is cheap—verify the contractor's claims with evidence and past clients.
Portfolio and Completed Projects
Ask to see photos of completed projects similar to yours—same property type, similar scope, same style. Anyone can show beautiful photos; ask for addresses or contact details of recent clients (within the past 6-12 months) who've agreed to be references. Ask how many projects they've completed in total and in the past year. Be wary of contractors who've been in business for years but show only 10-20 projects—where are the others?
Client References
Ask for at least 3 references you can contact. When you speak to past clients, ask: Did the project finish on time and on budget? How did the contractor handle problems? Would you hire them again? Were there hidden costs? How was their communication? Past clients reveal truths that sales pitches hide.
Red Flags to Watch For
Walk away if the contractor cannot provide current licence/registration, requests more than 20% deposit, refuses to provide itemised quotations, has no insurance, pressures you to sign immediately without review time, bad-mouths competitors excessively, or has no verifiable past projects. Trust your instincts—if something feels off, it usually is.
Frequently Asked Questions
What deposit percentage should I pay for renovation in Singapore?
Pay no more than 20% deposit, with industry standard around 10-15%. Deposits above 20% indicate cash flow problems or risk of the contractor disappearing with your money. Reputable contractors have sufficient working capital and don't need large upfront payments. Always tie subsequent payments to work milestones, not calendar dates, to maintain leverage if work quality or progress is unsatisfactory.
How do I verify a renovation contractor's HDB licence?
Visit the HDB InfoWEB, go to the eServices section, and search the Directory of Renovation Contractors. Enter the contractor's licence number (format HB-XX-XXXXH) to verify current status. The directory shows licence validity, registration date, and whether there are suspensions. Alternatively, ask the contractor to show their physical licence card with photo. Never hire unlicensed contractors for HDB flats—you'll be fined and may need to reverse works.
What should a renovation quotation include in detail?
A proper quotation itemises costs by room and trade: hacking, masonry, electrical, plumbing, carpentry, painting, flooring, etc. Each line specifies materials (brand, model, grade, quantity) and labour separately. It should state what's included and excluded, payment schedule, timeline, warranty period, and VO procedures. Avoid lump-sum quotations that just say "4-room renovation: SGD 35,000"—you can't assess value or challenge costs without itemisation.
Can I withhold final payment if I'm unhappy with renovation work?
You can withhold payment proportional to outstanding defects, but not the entire final payment for minor issues. Document all defects with photos and written descriptions. Give the contractor reasonable time to rectify (typically 7-14 days). If they refuse or do poor rectification, you can withhold the cost of hiring others to fix it, but release the remaining payment. Withholding entire payments without justification can result in the contractor filing a lien or small claims action against you.
How long is standard warranty for renovation work in Singapore?
Standard warranty is 12 months for workmanship and material defects from handover date. Some contractors offer 24 months for carpentry or specific trades. Warranties typically exclude wear-and-tear, misuse, homeowner-caused damage, and manufacturer defects (those are covered by manufacturer warranties). Get warranty terms in writing, including what's covered, response time for claims, and whether there's a service charge for warranty visits. Keep all warranty documents and receipts safely.
Ready to start your renovation with a transparent, licensed direct contractor? Larry Contractors has completed 500+ projects since 2009 with HDB licence HB-09-5667H and BCA GB2 registration. We provide itemised quotations, handle all permits, offer 12-month workmanship warranty, and operate our own carpentry factory at 19 Kaki Bukit Industrial Terrace for quality control. No middlemen, no hidden costs—just honest renovation work. Contact us on WhatsApp at https://wa.me/6591072601 to discuss your project, get a detailed quotation, and see our completed projects. Ask us these questions and judge our answers for yourself.