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A re-roof planned around your fresh-air intakes, your quiet hours and the Town's sightline rule — all worked out before a square foot gets priced.
50 years, flat roofs only · since 1977 | ★ 4.8 on Google | Comprehensive liability insurance + WSIB | Spring/fall inspection — free
Seven Employment Districts, and Most of Them Wear a Tie
Oakville's employment lands are not the GTA's usual industrial picture. The Town's own review names seven districts in the south end — Burloak, Midtown, Old Oakville, QEW East, QEW West, Winston Park and Winston Park West — and describes them as historic and nearly fully developed, grown as a ribbon westward along the QEW after the Ford plant established itself there.
The economy on top of that land is white-collar. Invest Oakville puts professional services at over 40,000 workers across roughly 3,200 businesses, alongside health and life sciences at around 13,000 and manufacturing at a little over 9,000. Oakville's largest single employer is still Ford, but the next names down the list are a school board, a hospital network and the Region.
So the buildings we are asked onto here are mostly offices. Two to six storeys, glass and precast, sitting in landscaped campuses off Winston Churchill and the South Service Road, with a membrane assembly carrying a lot of mechanical and, increasingly, a terrace somebody eats lunch on.
That changes the job completely. Not the roofing — the roofing is the same trade it always was. What changes is that three hundred people are directly underneath it, at their desks, on a Tuesday.
One Oakville job in our gallery so far — September 2024 — and fifty years of the same trade behind it.
“They also found a forth leak and fixed it in good faith without billing us.”
Amanda Helps · Google review
Google has us at 4.8. Over an occupied office, the leak nobody asked about is usually the one that ends up dripping on somebody's desk.
Roofing Oakville Offices: Everything Hard Happens Below the Deck
On a warehouse, re-roofing is a logistics problem. On an occupied office building it is a people problem wearing a logistics costume, and the parts that go wrong are almost never the roofing.
Start with smell, because it is the one that generates phone calls. A building's fresh-air intakes are up there. So is the work. If a crew sets up over an intake and starts pulling an old asphalt system, or runs adhesive, or fires a kettle, the building's own HVAC will take that air and distribute it to every floor within minutes. People downstairs do not experience this as roofing. They experience it as a smell in the boardroom, and by the second occurrence somebody is asking the property manager whether it is safe.
It is entirely avoidable and it is planned, not improvised. Before we mobilise we want a drawing of where your intakes are, which units serve which floors, and who we can call to shut one down for an hour. Odour-generating work gets sequenced so it is never happening upwind of a running intake, and where that cannot be arranged, it moves to an evening or a weekend. The cost of doing it that way is small. The cost of not doing it is a tenant relations problem that outlives the membrane.
Noise is the second one, and it is more negotiable than people expect. Tear-off is loud, and on a concrete deck it transmits straight into the ceiling below as impact rather than airborne sound, which is why an office directly under an active bay is genuinely hard to work in. But the loud part of the day is a small fraction of it. If we know which rooms matter — a trading desk, a call centre floor, a room where people take patient calls — we can sequence bays so those areas are worked over at the start of the day, or after five, and everything quieter happens during business hours.
Then the ordinary things that nevertheless ruin a week. A crane or a hoist needs a footprint, and that footprint is usually somebody's parking. Materials need staging. A tear-off makes dust that lands on cars. Rooftop access on an office building often runs through a tenant's suite rather than a back stair.
None of that is roofing expertise. It is the difference between a job your tenants barely notice and one that generates a complaint a day for six weeks — and it is entirely decided before anyone climbs a ladder. We would rather spend a long first meeting on it than a short one.
In Oakville, the Town Would Rather Not See Any of It
Oakville has a policy on this that plenty of contractors discover late. The Livable Oakville Plan says plainly that rooftop mechanical equipment shall not be visible from the public realm — not screened tastefully, not minimised. Not visible.
That matters on a re-roof more than it sounds. Adding insulation raises the finished surface, which lowers every screen and parapet relative to it. A screen that satisfied the Town when the building opened can fall short afterwards simply because the assembly came up two inches, and units replaced over the years are often taller than the ones they succeeded. We check screen heights against the new assembly thickness during the roof survey rather than discovering the problem once the work is done, and where new equipment is going on, it gets designed into the new assembly rather than bolted on afterwards.
The same section of the Plan asks that outdoor amenity areas on buildings use setbacks and screening so they sit comfortably in their context — which is the Town's way of talking about the rooftop terraces now common on Oakville office buildings.
Terraces are their own discipline. A surface somebody walks on, puts furniture on and holds a summer event on is a waterproofing assembly with an overburden, not a roof with chairs. Pavers, pedestals and planters all hide the membrane, which means a leak under a terrace is slow to find and expensive to open. If you have one, or you are planning one, raise it early — the decisions that make a terrace maintainable are made before the membrane goes down.
The Crown Intake-and-Sightline Plan, Settled Before Work Starts
Four steps. The first two happen before we'd even think about a number, because on an office building that's where the job is won or lost.
1. Walk it with your operator
Property manager, building operator, whoever fields the complaints. We ask for the intake drawing, which units feed which floors, and the rooms that can't take noise.
→ Every constraint is on the table before the scope is.
2. Survey, scan, measure the screens
Infrared after dark, cores wherever the scan reads wet, and every screen height checked against the thickness of the new assembly.
→ You know now whether a screen has to grow, not at handover.
3. Write the phasing down
Which bays go in what order, what moves to an evening, where the hoist sits, and the letter your tenants get — with dates — before we start.
→ Tenants hear it from you first, on paper.
4. Match the system to the building
Repair where the field still reads dry. Where it doesn't: PVC on most office stock, SBS under terraces and heavy traffic, hot BUR on some older QEW buildings — always torn off to the deck.
→ A spec shaped by how the building runs.
What Belongs on an Office Building in a Business Park
Office roofs are usually kinder to a membrane than plants are. No process exhaust, no grease, no forklift traffic — mostly weather, mechanical traffic and sun. That widens the options and it means the specification should be driven by the building's operation rather than by whatever the last contractor happened to be certified on.
A PVC roof system is where we land most often on this stock. It welds into a continuous sheet, details cleanly around the dense mechanical these buildings carry, holds its dimensions, and its reflectivity does real work on a wide office rooftop in July, which your cooling load notices. Our PVC carries material warranties up to twenty years.
Where the deck is concrete and the structure takes constant maintenance traffic — or where a terrace or amenity deck is part of the picture and the membrane will live under an overburden — SBS modified bitumen is frequently the better answer, because two torch-welded plies give you redundancy in exactly the place where finding a leak later is most expensive. We lay SBS ourselves.
Built-up roofing is still occasionally right on the older buildings in the QEW districts, and we still lay it hot, ply by ply, with a fifteen-year workmanship warranty behind it.
The detail work is where an office job is won or lost, though, not the field. Transitions at parapets and curbs, the joints where dissimilar materials meet, terminations behind screen walls — sealing the joints and transitions properly is unglamorous and is the single most common thing we find done badly on a building that is only twelve years old.
Two constants regardless of building. We do not install TPO or EPDM; we will service them where a building already has them, but they are not in our catalogue. And every replacement is a tear-off to deck — no recovering, which on an office building also means we can actually inspect the deck instead of hoping.
When a Flat Roof Repair Beats a Full Replacement
Not every problem on an Oakville office building needs the whole assembly taken off.
A flat roof repair is the right answer when the failure is local and the field around it still reads dry — a split at a parapet transition, a curb that was flashed by a mechanical contractor and never looked at again, a drain sump that has ponded since the building opened. On a commercial property with tenants underneath, that distinction is worth real money: targeted repairs can usually be done in a few days, in one corner of the site, without a crane parked in the visitor bays.
We scan before we quote, because guessing is how one repair turns into the first of four. An infrared survey after dark reads the wet insulation against the dry, cores confirm where the boundary actually sits, and what you receive is a drawing of the affected area rather than an opinion. The estimate then covers the square footage that is genuinely wet and nothing else.
Where repairs stop making sense is when the wet region has spread across the field, when the same detail has been patched three winters running, or when the boards are saturated to the point that you are conditioning the outdoors. At that stage you are buying the same work twice.
Flat roofing on an occupied commercial building is a maintenance proposition as much as a capital one. Two inspections a year, a written record and a photograph of every penetration will protect the assembly and the budget better than any warranty document — and they turn a February emergency into a known building rather than a mystery.
If water is coming in today, say so when you call. The first visit is about keeping it away from your tenants, not about selling you anything.
What Oakville Property Managers Want Answered First
“My tenants will be on the phone to me by day two.”
That's the thing we plan hardest against. Odour work is kept off running intakes or moved to an evening, the loud bays get timed around the rooms you name, and tenants get a letter with dates before anything starts — so the first they hear of it isn't a tear-off overhead.
“I'm not ready to commit to a project yet.”
You don't need to be. The walk-through and the survey come first, and what comes back is in writing. Use it to brief your owner, to set next year's budget, or to hold another contractor's bid up against.
The Oakville Roofers Who Only Install Low-Slope Roofing
It is worth saying plainly what we are and are not, because this is a narrower business than most of the roofing firms you will meet here.
Crown does commercial flat roofing and industrial low-slope work. That is the whole catalogue. We are not a home roofing company. We do not do shingles, siding, eavestrough or skylights, and we do not carry TPO roofing or EPDM roofing as an option — we will maintain those membranes on a building that already has them, but they are not systems we would ever put on your property.
The Oakville roofers on your building are our own crew. Nothing is brokered out, which on an occupied office property is the entire point: you are handing one firm the keys, the freight elevator and a fortnight of your tenants' patience, and it should still be that same firm on the last day of the installation.
What the narrowness buys you is depth instead of breadth. Everyone on the crew has spent their working life on commercial roofing over occupied buildings in Ontario, and it shows in the detail work — the transitions, the curbs, the terminations behind screen walls. Generalist firms are perfectly good at what they do. They are simply not flat roofing specialists, and a five-storey office in a business park is a poor place to discover the difference.
Our Oakville Roofing Work, and Half a Century of Only Flat Roofs
Crown was founded in 1977 by Brian Sharp and is run today by Joe Ferrier. In fifty years the company has not taken on a pitched residential roof, and it does not subcontract its crews — the people on your building are ours, which on an occupied office property matters more than it does anywhere else. You are letting a company into a building full of your tenants; it should be one company.
Our Oakville job on the board closed in September 2024 and the Oakville project photos sit in the gallery with the rest, filed by city and month. The pictures are taken up top by the crew, so they show the work rather than a version of it.
For an office building, though, the useful thing is not photographs. It is a walk-through with your property manager, your building operator and whoever fields the tenant complaints — because those three people between them know every constraint that will decide how this job goes.
What Clients Have Said About Working With Us
Our business in Aurora had several leaks in the roof to our shop. Crown Roofing was amazing to deal with. Their worker Arvin was such a great guy and was really thorough in explaining where all the leaks were. He took photos to show us where the leaks were coming from. They also found a forth leak and fixed it in good faith without billing us. I can not express just how much we loved working with Arvin.
Amanda Helps · Google review
I waited for all seasons before giving this review as I wanted to give a transparent and accurate review. I received multiple quotes and decided to use them to replace the roof on our building.
Susan Mahabir · Google review
Rated 4.8 on Google.
Disruption, Odour, Screening and Rooftop Terraces
How disruptive is this actually going to be for our tenants?
Less than most people fear, if it is planned, and worse than they fear if it is not. The genuinely disruptive parts are tear-off noise directly overhead and any odour that reaches a fresh-air intake, and both are schedulable. What we want from you early is a floor-by-floor picture of which areas cannot take noise and when, plus your intake locations — with that, we can sequence bays so the loud work passes over sensitive areas outside business hours and the quiet work happens during them. We also write to your tenants before we start, with dates, rather than leaving the property manager to field surprise.
Will people smell it inside the building?
Not if the intakes are respected, and that is the whole answer. A building distributes whatever its intakes draw, so odour control on an office building is a matter of where work happens relative to those units and when. We identify them in the survey, sequence around them, and where a particular phase cannot be kept clear we arrange with your operator to shut the affected unit down for the window or move that work off-hours. Torch and kettle work is the obvious concern; adhesives and primers are the one people forget. Ask any contractor bidding your building how they plan to handle your intakes — the answer tells you a lot.
Our screens were fine before. Why would the Town care now?
Because adding insulation raises the finished surface and everything measured from it changes. Oakville's Official Plan requires that rooftop mechanical not be visible from the public realm, and a screen that cleared a unit comfortably at the old height can sit short once the new assembly is down — particularly where replacement units over the years have grown taller than the originals. It is a cheap thing to check at survey and an expensive thing to discover at the end, so we measure screen heights against the proposed assembly thickness before the spec is finalised and tell you if anything needs to grow.
We have a rooftop terrace. Does that change the job?
Substantially, and it is worth separating the two in your head: under a terrace you have a waterproofing assembly with an overburden sitting on it, not a roof. Pavers, pedestals, planters and decking all conceal the membrane, so a leak is slower to locate and far more expensive to open up, and the details at doors, thresholds and planter edges carry most of the risk. If the terrace is existing, we will want to understand how it was built before we quote. If it is planned, bring us in while it is still a drawing. Either way, twice-yearly roof inspections matter more on a building with a terrace than on one without, because the early warning you would normally get from an exposed membrane simply is not there.
Plan It Properly Before Anyone Quotes It
On an occupied office building, the quality of the roofing is table stakes. What decides whether the project goes well is everything around it — intakes, noise windows, parking, access, screens, and who talks to the tenants.
Call (416) 744-7788 or email info@crownroofing.ca. We will come out, walk it with your operator, and give you a written plan covering the phasing and the disruption as well as the membrane itself.
We cover the whole of the town from the Burloak line through Winston Park to Bronte — low-slope work, planned repairs and full tear-offs on offices, clinics, schools and the light industrial stock along the QEW. If your building is on a maintenance programme with somebody else and you simply want a second opinion on what the repairs are actually buying you, that is a call worth making too. Our team will tell you when a flat roof has years left in it.
Crown Industrial Roofing · 227 Queens Plate Dr Unit #3, Etobicoke, ON M9W 6Z7
The paperwork side, since your owner will ask.
Licence, general liability cover and WSIB are all in place, our people carry up-to-date safety tickets, and your property manager can have a copy of every certificate. Two warranties, both on paper: manufacturer-backed warranties on materials, and a workmanship warranty of up to 15 years from Crown, handed over once the final inspection is done. The spring and fall inspection won't cost you a cent.