Roofing, Siding, Windows and Doors
Protect the house from the outside in, with an exterior built for Ontario weather.
Roofing, Siding, Windows and Doors in Toronto and across Ontario
Your roof, walls, windows and doors keep Ontario's snow, ice, rain and wind out of your home. When they fail, the damage shows up inside: stained ceilings, drafts, mould and high heating bills.
We replace roofs, siding, soffits, fascia and eavestroughs, and install new windows and doors, with the underlayments, flashing and air sealing that make them perform. Like-for-like replacements usually need no permit. Enlarging openings or changing structure does, and we handle it.
Harborline Sterling Construction Inc. is principal-led. One of our co-founders, Mansoor Alam Khan or Maqsood Mohammed, oversees every project, so decisions get made quickly and you always know who is accountable.
What roofing, siding, windows and doors includes
Every project is different, but these are the parts of the work we take responsibility for.
Roof replacement
Asphalt shingle and metal roofing with ice and water protection at the eaves, proper ventilation and new flashing at chimneys, walls and valleys.
Siding and trim
Vinyl, fibre cement, engineered wood and metal siding, soffits and fascia over a properly installed weather barrier.
Windows and doors
Energy-efficient windows, patio doors and entry doors, installed with sill protection, flashing and insulation that keep water and drafts out.
Eavestroughs and downspouts
Seamless eavestroughs, leaf protection and downspouts that carry water well away from your foundation.
Insulation and air sealing
Attic insulation, air sealing and ventilation that reduce ice dams and heating costs.
How the work runs
The same disciplined backbone we use on every project, adapted for this kind of work.
Inspect
Roof and exterior inspection, measurements and a written quote.
Order
Materials, colours and products confirmed and ordered.
Install
Tear-off, repairs, installation and daily clean-up, with your property protected.
Finish
A magnetic sweep for nails, final inspection and warranty documents.
Often paired with roofing, siding, windows and doors
Many home projects combine services. One contract can cover all of it.
Home Additions
Rear, side and second-storey additions, sunrooms, mudrooms and garage conversions.
Learn moreFoundations, Waterproofing and Concrete
Foundation repair, basement waterproofing, underpinning, sump pumps, backwater valves and concrete work.
Learn moreDriveways, Walkways and Interlock
Asphalt, concrete and interlocking driveways, walkways, front steps and patios.
Learn moreWhy choose us for roofing, siding and windows
From the first visit to the final walk-through, here is what you can count on.
One accountable team
One contract and one point of contact for design, permits, trades and inspections, so you are never left coordinating contractors yourself.
Principal-led
A founding principal oversees your project and is a phone call away, from the first visit to the final walk-through.
Licensed trades
Electrical work by licensed electrical contractors, gas work by TSSA-registered contractors and plumbing by licensed plumbers, with permits and inspections where required.
Other ways we can help
Many projects combine services. Ask us how they fit together for yours.
Also from Harborline Sterling
Related reading
Home renovationPlanning a Home Renovation in Ontario: Permits, Contracts and Budgets
Permits, licensed trades, written contracts, holdback and budgets: what to sort out before your renovation starts.
Read article
ConstructionBuilding Through an Ontario Winter: What Owners Should Expect
Frost, concrete, heat and daylight: how winter affects cost and schedule, and how good planning keeps projects moving.
Read articleFrequently asked questions
Do I need a permit to replace my roof?
In most cases, no, as long as no structural work is needed. Changing the roof structure or adding dormers does need one.
Do I need a permit to replace windows?
Replacing a window or door in the same opening of a house usually does not need one. Enlarging openings or adding new ones does, because the wall structure changes.
What causes ice dams?
Heat escaping into the attic melts snow on the roof, and the water refreezes at the colder eaves. Air sealing, insulation, ventilation and eave protection all help prevent them.
How long does a roof replacement take?
Many house roofs are replaced in one to a few days, depending on size, complexity and weather.
Do you repair as well as replace?
Yes. If a repair will solve the problem, we will tell you, rather than sell you a replacement you do not need.
Get a quote for your roof, siding or windows
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.