Underground utility locating on Montreal’s South Shore

Local considerations for South Shore job sites

The South Shore plain sits largely on clay from the former Champlain Sea. This clay, especially when saturated in spring, absorbs the ground-penetrating radar signal and reduces its reading depth; radio detection then takes over for metal utilities and we adjust the antenna frequency. Recent developments add plastic conduits without a tracer wire, invisible to radio detection, that only ground-penetrating radar can detect.

Cities covered

Longueuil (Vieux-Longueuil, Saint-Hubert, Greenfield Park), Brossard, Boucherville, Saint-Lambert, Sainte-Julie, Varennes, Saint-Bruno-de-Montarville, Saint-Basile-le-Grand, Chambly, Carignan, Beloeil, McMasterville, Mont-Saint-Hilaire and Sainte-Catherine.

Before you dig on the South Shore

• Info-Excavation request for public utilities up to the property line.
• Private locating of service connections and on-site networks.
• Check the municipal permit with your city for public property.
• In clay, allow a margin around the marked routes and dig carefully on approach.

Why choose us on the South Shore

• Method adjusted to clay soils: antenna frequency, radio detection first on metal, confidence level stated.
• Coverage of the entire Longueuil agglomeration and the Vallée-du-Richelieu.
• Same team for ground and concrete.

Frequently asked questions

How much does underground utility locating cost on the South Shore? Underground utility locating on the South Shore is billed according to the area and the number of networks to locate; a residential lot usually takes a few hours. Request a quote with the city and the type of work.

Does ground-penetrating radar work in clay? Yes, with a reduced reading depth. We combine ground-penetrating radar and radio detection and state the reliability of each depth in the report.

Do you cover Chambly and Beloeil? Yes, as well as the entire Vallée-du-Richelieu, with the same turnaround times.