Underground utility locating in Quebec with ground penetrating radar and radio detection
Détection Souterraine Québec locates buried pipes, cables, tanks and structures before your excavation, drilling or core drilling work. We work in Montreal, Laval, on the South Shore, in Châteauguay and in Dorval with GSSI equipment and deliver a clear PDF report with plans and depths within 24 hours.
- PDF report within 24 hours
- Submit your Info-Excavation request for public utilities, and entrust us with the private utilities on your property.
Why locate before you dig. Info-Excavation locates public utilities free of charge up to your property line. Everything on the private side (service connections, site conduits, cables between buildings, tanks, old foundations) is not covered. That is exactly what we locate.
Our underground locating services
| Service | What we locate | Page |
|---|---|---|
| Underground utility locating | All buried utilities on a site, ground marking and plan | See the service |
| Conduit locating | Electrical, telecom, gas and drainage conduits | See the service |
| Water line locating | Water service lines, private water mains, buried pipes | See the service |
| Cable locating | Buried electrical and telecom cables | See the service |
| Tank detection | Buried oil tanks, pits and cisterns | See the service |
| Concrete scanning | Rebar, conduits and post-tension cables in slabs | See the service |
| Ground penetrating radar locating | Surface GPR survey and mapping | See the service |
How a job works
- Site review. You describe the planned work, the area and the available plans. We confirm the method and the timeline.
- On-site locating. The technician combines GSSI ground penetrating radar and electromagnetic radio detection to cover both metallic and non-metallic utilities.
- Marking and report. Utilities are marked on the ground according to the colour code in effect, then you receive a PDF report with a plan, estimated depths and recommendations.
Why choose Détection Souterraine Québec
- Two complementary technologies: ground penetrating radar for plastic conduits, concrete and voids, radio detection for metallic cables and pipes.
- A usable report: locate plan, depth profiles and a clear legend, ready for your site crew or your engineer.
- Reply within 24 to 48 business hours and priority for job site emergencies.
- One team for the ground and the concrete: outdoor locating and slab scanning on the same job.
Where we work
We cover Greater Montreal and its surrounding regions: Montreal, Laval, South Shore, Châteauguay and Dorval. For a project elsewhere in Quebec, tell us about your job site.
Who our services are for
General and excavation contractors, hydro-excavation companies, plumbers and drainage companies, land surveyors, engineering firms, property managers, municipalities and homeowners preparing a pool, an addition, a fence or the sale of a property with an old tank.
Frequently asked questions
How much does underground utility locating cost in Quebec?
The price depends on the area to cover, the number of utilities to locate and site access. Most residential and small site jobs take a few hours of work. Request a quote with the city and type of work for an accurate price.
Is Info-Excavation enough before digging?
No. Info-Excavation covers public utilities up to the property line. Service connections and private utilities on your property must be located by a private service like ours.
What is your response time?
We reply within 24 to 48 business hours and schedule the visit according to the urgency of your job site. The PDF report follows within 24 hours after the survey.
Do you also locate in concrete?
Yes. Our concrete scanning service finds rebar, conduits and post-tension cables before core drilling, drilling or saw cutting.
What our clients say
“They located my lead water service line in under an hour. Fast and accurate, I recommend them!” (translated from French)
Client, Montreal · Lead water service line
“Before digging for our pool, they marked everything on the ground. We dug with peace of mind!” (translated from French)
Client, Laval · In-ground pool
“Clear plan received the next day. Our operators knew exactly where to dig!” (translated from French)
Client, South Shore · Construction site
To prepare your project
All resourcesInfo excavation Quebec for digging safely in the capital
Learn how to combine info excavation Quebec with a private GPR survey to dig safely despite shallow bedrock and aging utilities in Quebec City.
Info-Excavation Montreal for locating utilities before digging
Learn how Info-Excavation Montreal works, which utilities are covered or not, and the steps to locate your pipes before digging on the island.
Info-Excavation, role, members and how it works in Quebec
Learn what Info-Excavation is, who its utility owner members are and how a free locate request is processed in Quebec, from submission to markings.
Express quote
Describe your job site in five fields
Tell us the service, the city and your contact details. We will get back to you with the right questions and a price.
- Response within 24 to 48 business hours
- PDF report within 24 h
- We cover Greater Montréal and its surrounding suburbs
Or call us at514-819-4498
Request sent
Thank you. We will get back to you within 24 to 48 business hours.
Reference number
Plans to attach or a work date to book?Use the full form
Practical guide
Before you dig: private utilities outside Info-Excavation
A checklist to tell public utilities apart from private installations and prepare your work area.
Ready to make your work safer?
Get a quote for your underground utility locating in Quebec. Send us the city, the type of work and the schedule, and we will get back to you within 24 to 48 business hours.
- PDF report within 24 hours
- Submit your Info-Excavation request for public utilities, and entrust us with the private utilities on your property.