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HDB Renovation Guide Singapore: Reading the Quotation

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Most renovation disputes in 2025 start with a quote nobody fully read. This HDB Renovation Guide Singapore shows you what a proper quotation should contain, how to compare two fairly, and which gaps mean real trouble. Read it before you sign anything for your 2026 BTO or resale flat.

What a proper quotation should contain

A good quote is itemised, not a single lump sum. You should see every job broken out with materials and labour stated.

The scope section lists hacking, tiling, carpentry, electrical and plumbing separately. Each line needs a quantity, a rate and a total. Vague lines like "miscellaneous works" hide money.

Look for the exclusions block. This tells you what is NOT covered. Common exclusions are permit fees, debris removal and appliances. If it is missing, ask.

HDB Renovation Guide Singapore: Reading the Quotation

Your HDB BTO renovation budget only works if the quote matches the flat's actual condition. A resale flat needs more hacking and rewiring than a fresh BTO.

How to compare quotes fairly

Put two quotes side by side and check the same scope. Different contractors group works differently, so match line by line.

  1. Confirm both quotes cover the same rooms and same finishes.
  2. Check whether carpentry is included or excluded, since it runs about 40% of spend.
  3. Note who pays for permits and who submits them to HDB.

A cheaper quote is not cheaper if it leaves out the toilet overlay or the window grilles. Always compare like for like.

I once saw a homeowner pick the lowest bid, then pay 30% more when hacking and plumbing turned up as extras. The fault was the quote, not the contractor.

Red flags that signal trouble

Walk away from a quote with no permit handling stated. Hacking non-structural walls, toilet tiles and windows all need HDB permits through a DRC contractor.

A HDB-approved contractor will name the permit works and the fee. If the quote says "we settle everything" with no breakdown, that is a red flag.

  • No itemised carpentry dimensions or board grade.
  • No defect warranty period stated (expect about 1 year).
  • No payment milestone schedule with a retention sum.

Big deposits with no progress schedule are another warning. Milestone payments protect you if the work stalls.

HDB Renovation Guide Singapore: permits and who handles them

Permits go through the Renovation Control Rules 2006 and a contractor in the HDB Directory of Renovation Contractors. Approval can take up to 3 weeks, so build that into your plan.

Simple permits clear in 3 to 7 days. The permit is valid 3 months for BTO and 1 month for resale, so do not apply too early.

Windows and grilles need HDB-approved, BCA-trained installers. Since 2011 every openable window must have a safety restrictor that you maintain.

Rewiring past your existing points needs a Licensed Electrical Worker registered with EMA. Plumbing needs a PUB-licensed plumber. The quote should name these people.

Get the permit scope in writing before you pay the deposit. It is the cheapest insurance you will buy.

Reading a quotation is dull work, but it sets the tone for the whole project. Spend an hour on it now and you avoid the fights that wreck renovations later. A clear quote means a calmer 2026 move-in.

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