Hong Kong roof waterproofing
Proficient Waterproofing provides two core solutions: seamless Polyurea spray-applied waterproofing without full removal, and complete removal and reconstruction.
Suitable for residential projects:Duplex units, top-floor homes, private rooftops and terraces.
System selection
We assess the existing membrane, substrate and drainage conditions before recommending a suitable solution.
01 / Full removal
Rebuild the waterproofing system
Suitable when the existing system has failed, the substrate is deteriorated or drainage falls must be rebuilt.
Remove existing layers / Repair substrate / Rebuild waterproofing
02 / Overlay system
Reduce demolition works
Suitable where the substrate remains sound and the existing membrane is aged or has only localised cracking.
Substrate preparation / Detail reinforcement / Seamless spray application
The final system is subject to the findings of the site inspection.
Selected work
47 project records
We have delivered waterproofing and leakage-repair works for buildings across Hong Kong, serving developers, property managers, design and fit-out companies, private estates, detached houses, village houses, commercial and industrial buildings, shopping centres, hotels, offices, factories, the airport, universities and petrol stations.
Project index · Showing 12 / 47
On-site records
4 selected films
Site footage supplements the photographic records and shows the principal work stages for complete removal, overlay systems and different residential settings.
Project overview
A review of site conditions and completed works, from private roofs to heritage-building repairs.
From evidence to delivery
Credentials & material partners
From property developments and industrial buildings to commercial premises and homes, effective waterproofing is fundamental building protection. Contact us for an initial online assessment or site inspection.
Industry credentials
CIC Registered Specialist Trade Contractor
Waterproofing / Concrete Repair
Construction Industry Council · R011846
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ISO 9001:2015
International Quality Management Certification
Quality Management System Certification · CC 6892
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Material partners
We maintain technical coordination with major waterproofing material brands and select systems, application methods and maintenance recommendations according to site conditions.
View approved applicator information
Roof Waterproofing Decision Guide
These are initial checks. See the guides below for quotation and project-coordination details; the final system and sequence require a site inspection.
01
Assess full reconstruction where the existing system has failed widely, the substrate is unsound or drainage falls need rebuilding.
02
Assess a Polyurea overlay where the substrate can be retained; assess full reconstruction where the substrate, drainage or existing system has failed widely.
03
Area, access, removal, substrate, drainage details, testing, reinstatement and warranty scope all affect the quotation.
04
Define zones, access, user impact, sequence, photographic records, inspection and handover requirements before work starts.
05
Outlets, parapets and penetrations are common junctions and terminations; inspect them with the falls, drainage and existing membrane.
06
Send roof-wide and close-up photographs, approximate area, building type and repair history to support an initial assessment.
FAQ
Yes. The substrate, cracks, drainage outlets, existing waterproofing layer and leakage locations should be inspected before selecting Polyurea, PU, sheet membrane or another suitable system.
Yes. Please provide the building type, approximate roof area, leakage locations, photographs and whether a formal quotation document is required.
Yes. Send an overall roof view together with close-ups of leakage points, drainage outlets, cracks and the existing waterproofing layer so we can assess whether a site inspection is required.
The galleries show actual work areas, construction stages, waterproofing details and completed conditions, helping owners and property managers compare projects with similar requirements.
The decision depends on adhesion of the existing membrane, substrate moisture, cracking, drainage falls and detail conditions. An overlay may be considered where the substrate remains sound; widespread failure, hollow areas or inadequate falls normally require complete reconstruction.
Pricing is based on the work area, extent of removal, substrate repairs, detail work, material system, transport and site constraints. An accurate quotation can be prepared after the actual scope has been inspected.
The programme depends on the work area, substrate condition, required stages, curing time, weather and building operations. A suitable sequence can be proposed after the inspection.
Depending on project requirements, we can organise progress photographs, material and work-stage records, testing or inspection information, completion documents and maintenance recommendations.
Book inspection
Send roof photographs, leakage locations and basic building information through WhatsApp. We will recommend the next inspection or quotation step based on the site conditions.
Office and contact
15/F, Keen Match Centre, 21 Tai Yip Street, Kwun Tong, Hong Kong3460 5055 · marketing@proficientwp.com
