We’re investing £850,000 to upgrade the gas network along in the Sinclair Street area of Helensburgh.
This critical work will begin on Monday 8 September and last for approximately seven months.
We’re replacing 4.3km of old metallic gas mains with modern plastic pipe to continue to ensure a safe and reliable gas supply to surrounding homes and businesses.
Our project has been planned in close consultation with Argyll and Bute Council and will involve the use of temporary traffic lights in Sinclair Street for the entire first phase of the project which runs until Christmas 2025. Whenever they’re used, the lights will be manually controlled during peak hours.
The project will take place over two phases to minimise disruption as much as possible. On the map, phase one is orange and phase two is in blue.
PHASE ONE
Phase one will begin on Monday 8 September and last until Christmas 2025. SGN will be working in Sinclair Street from its junction with Kennedy Drive, progressing southward up to its junction with Millig Street.
Multi-way temporary traffic lights will be required at the following
- junctions with Sinclair Street during this phase:
- Junction of Kennedy Drive (3-way)
- Junction of West Dhuhill Drive (3-way)
- Junction of West Douglas Drive/Douglas Drive East (3-way)
- Junction of West Lennox Drive (4-way)
- Junction of Munro Drive West/Munro Drive East/West Rossdhu Drive/East Rossdhu Drive (4-way lights at the railway bridge)
- Junction of West Abercromby Street/East Abercromby Street (4-way)
- Junction of Queen Street (3-way)
- Junction of Millig Street / Victoria Road (4-way)
PHASE TWO
Phase two will begin in January 2026 and last until the end of March 2026. During this phase we’ll be working in the following streets within the grass verge areas:
- Kennedy Drive
- West Douglas Drive
- Douglas Drive East
- West Lennox Drive
- Munro Drive West
- East Abercromby Street
- West Abercomby Street
- Colquhoun Street
- Abercromby Place West
- West Rossdhu Drive
- Blackhill Drive
- Glen Drive
- Gillespie Drive
- West Dhuhill Drive
- Upper Colquhoun Street
Because most of the work will take place during the autumn and winter months, restoring grassy areas may take a little longer. All affected grass verges and greenbelt areas will be re-seeded in spring 2026, when conditions are more suitable for growth.
Find out more in our customer leaflet.