Lanthier & GilmoreSurveying Ltd. · Ontario Land Surveyors Request a quote

Professional land surveying · Ontario

Professional land surveying in Port Colborne.

Boundary, topographic, construction and land-development surveying for property owners and project teams in Niagara and across Ontario.

Request a quote Call 905-835-5477
Surveyor operating field equipment beside the Welland Canal in Port Colborne
Survey fieldwork · Port Colborne
Founded in Fort Erie in the 1940s Based in Port Colborne · Serving Ontario
Homeowners Builders Developers Legal professionals Property professionals

Surveying services

Services for property, planning and construction.

Not every property question requires the same deliverable. We begin by understanding what you are trying to establish, submit, build or resolve.

01

Property + title

Property boundaries and title

Research and field evidence brought together to establish boundaries and prepare professional survey documentation.

  • Boundary surveys
  • Reference plans
  • Surveyor’s real property reports
  • Boundary retracement
02

Planning + development

Planning and land development

Survey and application support for the approvals, divisions and plans involved in responsible land development.

  • Plans of subdivision
  • Severance applications
  • Land development surveying
  • Site planning support
03

Design + construction

Topographic and construction surveying

Accurate existing-condition data and layout support for designers, contractors and project teams.

  • Topographic surveys
  • Topographic scanning
  • Construction surveying
  • Aerial imagery

Not sure which survey you need? Tell us what prompted the call—a fence, sale, permit, severance, design or dispute—and we’ll help identify the appropriate starting point.

Speak with our office
Service guideUnderstand the survey work that may fit your property or project
Where we workPrimary surveying service areas Advanced capabilityLiDAR, scanning, aerial capture and point clouds

Professional approach

Research, field evidence and professional judgment.

A survey may inform ownership, financing, construction, municipal approval or a legal decision. We treat the record, the field evidence and the resulting plan with the care those consequences demand.

01Research the record 02Measure the evidence 03Resolve discrepancies 04Document clearly
Surveyor collecting field measurements on a residential property
Residential field measurements

Survey process

How an engagement proceeds

  1. 01

    Define the need

    We review the property, intended use and required deliverable before establishing scope.

  2. 02

    Research + fieldwork

    Our team examines available records and gathers the physical evidence relevant to the work.

  3. 03

    Analysis

    Measurements and evidence are checked, reconciled and evaluated by surveying professionals.

  4. 04

    Delivery

    You receive the plan, report, monumentation or application support appropriate to the engagement.

Historical survey fieldwork in 1955
Survey fieldwork · 1955

Firm history

Established in Fort Erie in the 1940s

Founded in Fort Erie in the 1940s, Lanthier & Gilmore has built its practice across generations of property change and development. Today, our Port Colborne office continues to serve homeowners, builders, developers and professionals throughout Niagara and across Ontario.

Request a quote

Request a survey quote

Send us the address and a brief explanation of what you need. If you have a deed, PIN, prior survey, site sketch or municipal correspondence, mention that too.

Online quote request Tell us about your property Open the request form Email[email protected] Telephone905-835-5477 Office173 Clarence Street
Port Colborne, ON L3K 3G4
Office hours

Monday–Thursday8:00 AM–4:30 PM

Friday8:00 AM–12:00 PM

Weekends + holidaysClosed