Office Building Construction
New and renovated office buildings have to attract tenants, perform efficiently and stay flexible for decades. Getting the structure, envelope and systems right at the start sets the building up for its whole life.
Office Building Construction in Toronto and across Ontario
New and renovated office buildings have to attract tenants, perform efficiently and stay flexible for decades. Getting the structure, envelope and systems right at the start sets the building up for its whole life.
Harborline Sterling Construction Inc. is a principal-led general contractor based in Toronto. We bring one point of responsibility to every office buildings project, from early budgeting and approvals through construction and closeout, and we are candid about which scopes fit our team.
One of our co-founders, Mansoor Alam Khan or Maqsood Mohammed, oversees every project, so you get fast decisions and a team that is accountable for the result.
Key considerations for office buildings projects
The requirements that shape cost, schedule and design, and how we plan for them from day one.
Flexible floor plates
Column grids, floor-to-floor heights and service routes that let tenants configure space as their needs change.
Energy and envelope performance
A well-built envelope and efficient systems that meet the energy-efficiency requirements of the Building Code and keep operating costs down.
Building systems
HVAC, electrical, plumbing, elevators, fire protection and building automation coordinated for reliable long-term operation.
Repositioning older buildings
Lobby, washroom, façade and systems upgrades that help older office buildings compete for tenants.
Our process, adapted for office buildings
The same five-stage backbone that runs every project, applied to the specific requirements of this sector.
Consultation
We learn what the project has to achieve, visit the site and give you a straight read on scope, budget range and timeline before anyone signs anything.
Design and preconstruction
We coordinate designers and engineers, price the work against real trade quotes, order long-lead items early, and resolve conflicts on paper, where changes cost nothing, instead of on site, where they cost plenty.
Permits and approvals
Every Ontario municipality runs its own building department and review process. We file with the right authority, answer plan-review comments and coordinate Ontario Building Code requirements, so approvals never become the surprise that eats your schedule.
Construction
Sequenced trades, a site-specific safety plan, quality checks before work is covered up, inspections booked to keep the job moving, and regular updates so you always know where things stand.
Closeout
Final inspections, a deficiency walk-through, as-built drawings, manuals and warranty documents. Then we hand you the keys to a finished space.
How we deliver office buildings projects
The services most often used for this kind of work.
Commercial New Construction
Ground-up commercial buildings, from site work through final closeout.
Learn moreCommercial Remodeling and Additions
Renovation and expansion of commercial buildings you already own or operate.
Learn moreCommercial Project Management
Owner's-side project management: an experienced advocate on your side of the table.
Learn moreOther office and medical sectors
Related reading
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 article
RenovationsHow to Renovate Without Closing: Planning an Occupied Commercial Renovation
Phasing, protection and communication: how to keep your business running while the building around it improves.
Read articleFrequently asked questions
Do you build new office buildings?
Yes. We deliver low- and mid-rise office buildings, and we renovate and reposition existing office buildings.
Can you upgrade an older building while tenants are in place?
Yes. We phase common-area and systems work to keep the building operating.
Do you handle permits and approvals?
Yes. We prepare and manage permit applications with the municipality that governs your site, respond to plan-review comments, and coordinate Ontario Building Code requirements, inspections and any conservation authority approvals so the schedule holds.
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.
Build your office buildings project with us
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.