Choosing a landed house renovation contractor Singapore is not just about getting the lowest lump-sum price. Landed homes have more variables: old waterproofing, roof repairs, external walls, drainage, structural constraints, larger service runs, and sequencing between indoor and outdoor works.
A quote that looks cheap may exclude the exact items that make the project difficult. To compare contractors properly, you need to compare scope, assumptions, access, materials, workmanship details, and reinstatement.
Compare the same scope
Ask every contractor to price the same baseline scope. Separate repair work, wet-area work, services, finishes, and optional upgrades. If one quote includes roof waterproofing and another does not, the totals are not comparable.
Useful categories include hacking and disposal, masonry, waterproofing, plumbing, electrical, ceiling, flooring, painting, carpentry, doors and windows, roof works, external wall works, and final cleaning. For larger works, ask what is excluded and what may become a variation.
Adex offers landed house renovation services and supporting trades including electrical services, plumbing services, flooring installation, and carpentry services.
Look for diagnosis in the site visit
A good contractor should ask about the age of the house, past leaks, roof condition, drainage problems, previous renovations, electrical load, water pressure, and whether the family will occupy the home during works. These questions show that the contractor is thinking beyond surface finishes.
If a contractor gives a confident price before understanding the site, treat that as a warning sign. Landed renovation cost depends heavily on existing condition and access.
Check how waterproofing is handled
Waterproofing is one of the biggest risk areas in landed homes. Bathrooms, balconies, roofs, planter areas, and external walls all need correct detailing. Ask whether the quote includes hacking where needed, substrate preparation, membrane application, curing, flood testing, and tile reinstatement.
Skipping waterproofing to save money can damage the new renovation later. It is usually cheaper to handle wet-area risks before carpentry, painting, and ceiling works are completed.
Ask about project sequencing
The contractor should be able to explain what happens first and why. Roof and external leaks should be addressed before interior ceilings. Electrical and plumbing rough-in should happen before closing walls and ceilings. Wet-area testing should happen before final finishes.
Clear sequencing also helps homeowners plan temporary accommodation, furniture storage, and family routines.
Bottom line
The right landed house renovation contractor in Singapore should make the project clearer before work starts. Compare quotes by scope and risk handling, not just by the final number. A well-defined quotation protects both the homeowner and the contractor from avoidable disputes.


