Comparing a renovation quotation in Singapore starts with checking whether each company has priced the same work. A lower total may mean a simpler design, fewer cabinets, different materials or work that has not been priced yet.

Before deciding, align the scope, identify uncertain amounts and ask each shortlisted firm for a revised quotation against the same brief. This guide is for homeowners comparing HDB, BTO and condo renovation proposals. For workplace requirements, see our office renovation planning guide.

 

How do you compare renovation quotations fairly?

Compare the work and specifications first, then compare the totals. Mark every item as included, excluded, provisional or requiring clarification. Ask for missing prices instead of treating blank entries as zero.

  1. Give every firm the same floor plan and room-by-room brief.
  2. Check quantities, dimensions, materials and installation scope.
  3. Separate confirmed prices from allowances and optional upgrades.
  4. Resolve exclusions and responsibilities in writing.
  5. Compare payment stages, schedule assumptions and handover arrangements.

The Competition and Consumer Commission of Singapore’s renovation fair-trading guidance calls for clear, itemised pricing and disclosure of mandatory charges. Where a charge cannot be calculated beforehand, the guidance says its existence and an estimate should be disclosed before contracting. These are useful reference points when requesting clarification.

Start with a brief that every designer can price

A quotation built around “modern style with plenty of storage” leaves too many decisions open. List what you need in each room and distinguish essential work from optional features.

For a kitchen, specify whether you intend to retain the floor, replace the cabinets, relocate the sink or change appliances. Include appliance dimensions where known. A designer cannot reliably plan cabinet openings around an appliance that has not been selected.

Send the same version of the brief to everyone. If one designer proposes an extra tall unit, request it as a separate option so the base proposals remain comparable. Keep drawings and quotation revisions dated; an attractive price attached to an outdated layout is not a reliable basis for a decision.

Read each trade as a complete piece of work

Carpentry: check dimensions and what is inside

“Kitchen cabinets included” does not explain the length, height, internal layout or hardware. Ask whether upper and lower cabinets are measured separately, whether end panels and fillers are included, and how drawers differ from shelves in the price.

Request the proposed board, finish and hardware specifications. For a wardrobe, compare hanging space, drawer count and internal fittings against your actual belongings. Two similar-looking elevations can conceal different storage arrangements.

Countertops, tiles and flooring: compare supply with installation

Check the product or allowance, the area covered and preparation work. For a countertop, ask about cut-outs, edges, joints, delivery and installation. For flooring, confirm whether removal of the existing finish and preparation of the base are included.

Do not assume a material price represents the completed installation. Ask who measures final quantities and what happens if the selected product differs from the allowance.

Electrical and plumbing: attach the price to a layout

Mark sockets, switches, lighting positions and appliance connections on a plan. Clarify what each quoted “point” includes and whether fittings are supplied by you or by the renovation firm.

For plumbing, distinguish replacing a fitting in the same position from relocating it. Ask which connections, accessories and making-good works are included. Where the existing condition needs inspection, request a clear explanation of what remains uncertain.

Preparation and completion: look beyond visible finishes

Check protection of retained surfaces, dismantling, disposal, delivery access, painting preparation and cleaning. If several suppliers are involved, assign responsibility for installation and final touch-ups. A cabinet supplier and an appliance supplier may each assume the other is handling a connection.

Use this renovation quotation comparison worksheet

Copy the following fields into a spreadsheet, with one column for each company. Add a final column for the clarification you need before deciding.

  • Quotation reference: date, revision and linked drawing version.
  • Scope: room, trade, quantity, unit and dimensions.
  • Specification: material, finish, model and hardware where relevant.
  • Price status: fixed, measured quantity, allowance or optional item.
  • Coverage: supply, installation, removal and making good.
  • Exclusions: what you must arrange or pay for separately.
  • Schedule: start conditions, procurement dependencies and target completion.
  • Commercial terms: GST treatment, payment milestones and variation procedure.
  • Handover: inspection, defect reporting and warranty documentation.

Use “not confirmed” when information is missing. Avoid filling gaps with guessed prices: ask the firm to provide a comparable option or written clarification.

What do provisional sums and allowances mean?

In a quotation, an allowance or provisional sum generally indicates an amount set aside for work or selections that are not fully defined. The wording in your actual agreement matters, so ask the firm to explain how that amount will be finalised.

For each allowance, record four things: what it covers, what assumption it uses, when it will be confirmed and how any difference will be charged or credited. A tile allowance is more useful when you know the material basis and installation scope than when it is simply labelled “tiling”.

A quotation with allowances is not automatically unsuitable. The concern is uncertainty you cannot evaluate. Resolve major selections before committing where possible, and keep unresolved items visible in your budget.

Why the cheapest total may not be the lowest project cost

Consider this illustrative scope comparison, not a real Crown Interior Design quotation: Proposal A covers base kitchen cabinets and a countertop. Proposal B also covers wall cabinets, drawers and removal of the old kitchen. The difference in totals cannot tell you which offers better value until both price the same arrangement.

Ask Proposal A’s firm to add the required work and Proposal B’s firm to separate optional items. You can then assess price alongside design suitability and clarity of delivery.

Keep a separate budget for items you are purchasing yourself, such as appliances, loose furniture and window coverings. Do not count an allowance twice when building your total. Record refundable building deposits separately from expenditure, while still allowing for the cash needed.

Confirm payments, variations and the schedule before signing

The Singapore Courts’ renovation contracts guide recommends written agreement on scope, price and timelines, including subsequent changes. It also advises checking the contracting company’s name and UEN against ACRA records and distinguishing fixed charges from estimates.

Discuss payment milestones in terms you can recognise, such as a defined stage of work, rather than an unexplained calendar date. Ask what evidence confirms that a milestone has been reached and how inspection fits into the agreed payment process.

For a change, request a record showing the original item, revised item, price difference and schedule impact. Keep a running list of approved changes. This lets you see the current commitment instead of trying to reconcile separate messages at the end.

Ask when the stated renovation duration starts. Design sign-off, material availability, site access and any applicable building approvals may affect the programme. Request a sequence of decisions and works for your property rather than assuming another homeowner’s timeline applies.

Five mistakes to avoid when comparing quotes

  • Comparing different layouts: confirm that the same cabinets, rooms and features are priced.
  • Assuming a blank means included: ask for an explicit answer.
  • Accepting an unspecified substitution: request the replacement product details before deciding.
  • Reducing essential work to protect decorative features: discuss practical priorities before trimming every trade.
  • Losing track of revisions: keep one current quotation, drawing set and change list together.

Questions to ask your shortlisted renovation firm

  1. Which items could still change after site measurement?
  2. Can you price the same scope shown in this drawing?
  3. Which materials and fittings have not been selected?
  4. What work will I need to arrange separately?
  5. Who coordinates items supplied by different vendors?
  6. How will you document changes to price and timing?
  7. What will be checked at handover, and how do I report defects?
  8. Which optional features can be simplified while keeping the home functional?

If you are still deciding which type of firm to approach, read our guide to interior designers versus renovation contractors. For broader selection criteria, see what to check before hiring an HDB interior designer.

Prepare a clearer renovation brief with Crown Interior Design

Planning your home renovation? Review Crown Interior Design’s residential project portfolio, then share your floor plan, property condition, essential works, budget and intended move-in date.

Request a free, no-obligation renovation quotation to discuss the scope for your home. The quotation will depend on your requirements and actual site conditions.

Frequently asked questions

How many renovation quotations should I compare?

A manageable shortlist of two or three firms can help you compare approaches without repeatedly changing the brief. This is a practical starting point, not a formal requirement. Prioritise relevant experience and clear answers over collecting a large number of headline prices.

Can I get a quotation before collecting my keys?

You can begin with your floor plan and requirements. Ask which assumptions need checking after access to the property, and arrange for the relevant quantities and conditions to be confirmed before work is committed.

Is a lump-sum quotation always a problem?

No. A clearly defined item can have a lump-sum price. The problem is not knowing what that price covers. Request a description, specification and drawing reference where relevant so you can compare it with another proposal.

Should I choose a renovation package?

A package can be a starting scope, but check it against your home. Identify the included quantities and finishes, then ask for the cost of required additions and the treatment of items you do not need.

Can the price change after I accept a quotation?

That depends on the agreed terms, scope changes and unresolved items. Identify these before accepting. Request written agreement on any proposed change and its cost and timing implications rather than relying on an informal discussion.

Make the decision with fewer unknowns

A useful comparison ends with matching scopes, identifiable specifications and a clear list of anything still unresolved. Once those are in place, you can judge whether the proposal fits your home and budget with much more confidence.