Infrastructure and Public Works
Roads, sidewalks, street lighting, parks and underground services for municipalities, public agencies, developers and property managers across Ontario.
Public works, built to public standards
Public infrastructure is used by everyone, so it has to be built right, built safely and documented completely. Harborline Sterling Construction Inc. delivers roads, sidewalks, curbs, street and site lighting, parks and playgrounds, sewers and watermains, and site preparation for public owners and private clients across Ontario.
We work to Ontario Provincial Standards and each owner's specifications, set up work zones to Ontario Traffic Manual Book 7, request locates through Ontario Dig Authority before every dig, and build accessible elements to the AODA Design of Public Spaces Standards where they apply. Progress payments, holdback and prompt payment are administered as Ontario's Construction Act requires.
Every project is overseen by one of our founding principals, Mansoor Alam Khan or Maqsood Mohammed, so decisions get made quickly and you always know who is accountable.
Infrastructure and Public Works services
Civil and municipal work built to Ontario Provincial Standards and each owner's specifications, with safe work zones and complete records.
Roads, Paving and Parking Lots
Road reconstruction and resurfacing, asphalt paving and parking lots, built to OPSS and municipal standards.
Learn moreSidewalks, Curbs and Accessible Crossings
Concrete sidewalks, curb and gutter, curb ramps, multi-use paths and boulevard restoration.
Learn moreStreet and Site Lighting
Streetlights, LED conversions, and parking lot and pathway lighting, with licensed electrical contractors.
Learn moreParks, Playgrounds and Trails
Playgrounds, splash pads, sports courts, trails, shelters and park improvements.
Learn moreSewers, Watermains and Site Servicing
Storm and sanitary sewers, watermains, service connections and stormwater management.
Learn moreDemolition, Excavation and Site Preparation
Demolition, clearing, excavation, grading, erosion control and excess soil management.
Learn morePublic owners and private clients
The same standards apply whether the owner is a municipality or a condominium board.
How public works projects run with us
A disciplined path from tender to closeout, built around the owner's contract documents.
Tender and scope review
We read the contract documents in full, walk the site, ask questions through the formal process and confirm we meet every requirement before we bid.
Submittals and approvals
Schedules, traffic control plans, material submittals, locates and permits approved before work starts.
Mobilization and safety
Work zones set up to Ontario Traffic Manual Book 7, site safety under the OHSA, and public notices issued.
Construction and testing
Work built to OPSS, OPSD and the owner's specifications, with testing, inspections and daily records.
Restoration and closeout
Restoration, deficiencies, as-built drawings, test records and the warranty period.
What public owners can expect
What municipalities, agencies and private owners can count on, on every contract.
Built to public standards
Work planned to Ontario Provincial Standards (OPSS and OPSD) and each owner's specifications, with testing and inspection built into the schedule.
Safe work zones
Traffic control to Ontario Traffic Manual Book 7, locates through Ontario Dig Authority before every dig, and site safety under the Occupational Health and Safety Act.
Accessible by design
Curb ramps, tactile walking surface indicators, paths, play spaces and parking built to the AODA Design of Public Spaces Standards where they apply.
Minimal disruption
Phased work, clear public notices and maintained access for residents, businesses and emergency services.
Complete records
Daily reports, test results, as-built drawings and closeout packages that public owners can file and audit.
Principal-led
A founding principal oversees every contract and is accountable to the owner's project manager.
Related reading
Public worksBuilding Accessible Public Spaces in Ontario: The AODA Design of Public Spaces Standards
What the standards cover, who they apply to, and the details that decide whether sidewalks, parking, trails and play spaces comply.
Read article
Planning a projectHow to Hire a Commercial Contractor in Ontario: 10 Things to Check
WSIB clearance, insurance, contracts, holdback and prompt payment: what to confirm before you sign.
Read articleFrequently asked questions
Who do you work for?
Municipalities, regional governments, school boards, conservation authorities, housing providers, developers, property managers, condominium corporations, and commercial and industrial owners.
What standards do you build to?
To the owner's contract documents, which in Ontario usually reference the Ontario Provincial Standard Specifications and Drawings (OPSS and OPSD) and municipal standards, plus the AODA Design of Public Spaces Standards where they apply.
Do you bid on public tenders?
Yes, on tenders that suit our capacity. We review every requirement, including bonding, insurance and health and safety certification, and bid only where we meet them all.
Are bonds required on public projects?
Often. Under Ontario's Construction Act, public sector contracts of $500,000 or more require a performance bond and a labour and material payment bond, each covering at least 50% of the contract price. Many tenders also require bid security.
How do you manage traffic and public safety?
With traffic control to Ontario Traffic Manual Book 7, maintained pedestrian routes, clear public notices, and locates through Ontario Dig Authority before every dig.
Do you also work on private property?
Yes. We build and repair parking lots, sidewalks, lighting, servicing and site works for plazas, offices, industrial sites, schools, places of worship and condominiums.
What areas do you serve?
We are based in Toronto and work across Ontario. Our core service area runs from Hamilton and Halton through Peel, Toronto, York and Durham, and north to Innisfil and Barrie. For the right projects, we work anywhere in the province.
Planning roads, sidewalks, lighting or parks?
Put one accountable team in charge: on schedule, on budget, with permits and inspections handled the whole way.
Start your project
Tell us what you are planning. We will set up a straightforward conversation about scope, budget and timeline, with no obligation.