Up to 10 years’ warranty
Newly replaced gas risers carry up to 10 years’ warranty. Covered items and conditions are specified in the written contract.

Plan in-situ estate gas riser repair and replacement with a fixed monthly fee. For property managers and owners’ corporations, the scope is defined after reviewing buildings, households and site conditions.
From the works warranty to annual fee settlement, understand the coverage and arrangements for your property.
Newly replaced gas risers carry up to 10 years’ warranty. Covered items and conditions are specified in the written contract.
If actual engineering costs during the one-year contract do not exceed the total contract fees, the company will refund the unused balance.
If the actual cost of contract-covered works during the one-year term exceeds the total contract fees, the company will not charge the customer extra.
* After deducting actual engineering costs from the total contract fees, the balance is refunded within ten working days. These arrangements apply to contract-covered works. Building works and opening or reinstating riser ducts are excluded. Pipe relocation, extensions, and non-emergency works requested outside office hours are charged separately. The written contract defines the specific scope and arrangements.
Response, budgeting, maintenance coverage and disruption. Explore how the needs of different estates shaped the work on site.
A suspension notice at 4 pm. Supply restored by 6 pm.
A leak in one branch pipe affected an entire building. At Sceneway Garden, the challenge was to reach the estate promptly and turn an urgent repair request into work on site.
Read the case studyA multimillion-dollar quotation, and a clearer order of priorities
Serious corrosion required attention, while the estate also had to consider its finances. At Hiu Lai Court, an assessment and phased programme put the most urgent repairs first.
Read the case studyBringing communal and branch pipework into one repair plan
With corrosion affecting different parts of the pipework, Kwong Ming Court needed a plan that considered both shared infrastructure and residents. A comprehensive inspection brought those needs into one programme.
Read the case studyA leak during the holiday, and a team ready to get repairs moving
A communal-pipe leak during a long holiday put Yau Chui Court at risk of an extended interruption. The priority was to mobilise the team and reduce the impact on residents’ daily lives.
Read the case studyThese are individual project outcomes. Response times, work arrangements and coverage depend on site conditions and the written contract.
The gas riser maintenance contract helps property managers and owners’ corporations coordinate estate pipework maintenance. After reviewing the number of buildings, households and site conditions, a fixed monthly fee proposal provides a clear basis for maintenance needs, responsibilities and costs.
Arrange repair or replacement of existing gas risers within the scope specified in the contract. The supply mains, locations and work items from ground level to the top floor are confirmed in the quotation.
Coordinate with management, the owners’ corporation and affected residents. Define engineering requirements, pipe coating and completion information for follow-up and handover.
Monthly fees are proposed based on the number of buildings and households, and survey findings. Contract duration, response arrangements, warranty scope and fee reconciliation are stated in the written proposal.
Building works, opening and reinstating riser ducts are excluded from the general plan. Pipe relocation, extensions and other additional works require separate confirmation and quotation. Site access, temporary working areas and required cooperation are checked with management before confirmation.
Estate name, number of buildings and households, existing pipework information and the issues to address.
Review installations, locations and work conditions to establish the proposed scope.
Check monthly fees, contract term, inclusions, exclusions, service and reconciliation arrangements.
Confirm contract terms, the contact point and coordination process. Services follow the agreed proposal.
Share the estate or building name, service required and a brief description of the work.