Our own crews. Built on site.
From foundation to enclosed — Building Depot installs every fabric building we sell across Ontario.
A four-step turnkey installation.
Site & Foundation
We pour and build the foundation ourselves — piers, blocks, concrete or P2000 helical anchors. No outside contractors, no scheduling gaps. One Building Depot crew, start to finish.
Delivery
Steel and membrane arrive on our trucks, scheduled to your install window so nothing sits unprotected.
Erection
Our Ontario crews assemble trusses, set the structure and tension the membrane — weeks, not months.
Hand-Off & Warranty
Final walk-through, documentation, and a 10/15-year structure and membrane warranty package.
Building Depot crews at work.
Welded, fabricated and stamped to recognized standards.
Ready to break ground? Let's schedule your install.
The complete guide to megadome installation services.
Building Depot is the Authorized MegaDome Dealer for Ontario and MegaDome installation services are one of the most-specified MegaDome configurations across the province. Engineered MegaDome installation services combine a hot-dip galvanized steel arch frame with a high-tenacity PVC membrane to deliver a clear-span, naturally lit, corrosion-resistant envelope that lasts decades with a fraction of the operating cost of conventional steel or wood construction.
Building Depot operates its own installation crews across Ontario — based in the GTA, Eastern Ontario and Northern Ontario — so we never sub-contract a MegaDome install to a crew unfamiliar with the engineered tensioning system. That single fact is the difference between a building that meets its 25-year design life and a building that develops chronic tension issues by year five.
A typical install runs 2–4 weeks for the steel frame and membrane portion, on top of 1–2 weeks for foundation and 1 week for end-wall and door commissioning. Larger or column-free wide-span buildings (140'+) add an additional week for staged arch erection.
This page is the complete Ontario reference for MegaDome installation services — covering benefits, applications, construction process, engineering, foundation options, installation, warranty and ongoing maintenance. Every Building Depot project is delivered turnkey under one accountable contract: in-house engineering, stamped Ontario drawings, municipal permit management, foundation construction, fabric installation and full commissioning. One contract, one project manager, one phone number from kickoff to keys.
Headline benefits.
Where MegaDome fits.
New-Build Installation
Full new-build installation — foundation, steel, membrane, end walls and commissioning. One crew, one project manager.
Re-Membrane Installation
Installation of replacement OEM MegaDome membrane on existing frames. 2–4 week typical site time.
End-Wall Expansion Install
Installation of engineered end-wall expansions on existing buildings. Coordinated with engineering and foundation extension.
Insulated Underliner Install
Installation of insulated underliner system for climate-controlled buildings. Coordinated with HVAC and lighting trades.
Operators we build for across Ontario.
From contract to keys.
Installation kicks off with a site mobilization meeting: project manager, install lead, foundation crew, owner and any owner-supplied trades. Site access, crane staging, lay-down area, owner-supplied utilities and the daily work window are all confirmed before steel arrives.
Steel arrives on site in sequenced loads timed to the install schedule — no over-stacking on small sites, no idle steel waiting for crew availability. Each arch is rigged, lifted by a mobile crane sized to the arch weight, and set on its anchor brackets by the install crew. Adjacent arches are tied with engineered purlins and bracing as they go up, which means the frame is structurally stable at every stage of erection.
Membrane installation follows frame completion. The PVC membrane is tensioned over the steel using engineered ratchet tensioners, with a 24-hour set period followed by a final tension check before sign-off. End walls are framed in galvanized steel and clad in membrane, insulated metal panel or owner-supplied finishes. Doors, lighting, ventilation and any insulation system are commissioned together.
Stamped Ontario engineering on every project.
Every MegaDome MegaDome installation services Building Depot delivers in Ontario ships with third-party engineering sealed by an Ontario P.Eng. and certified to CSA A660 — the Canadian standard for pre-engineered steel building systems. Engineering accounts for site-specific snow loads (1.6–3.5 kPa across the province), hourly wind pressures per the Ontario Building Code, unbalanced snow drift conditions and any seismic factors. Drawings include the full structural design, foundation reactions, anchor bolt schedules and ventilation specifications, and are submitted directly into the municipal permit package.
Engineering is included in every Building Depot quote — never billed separately, never outsourced to a third party the owner has to chase. The same engineering team that designs the building stands behind it through the permit process, the foundation inspection and any post-construction follow-up. That single accountable contract is why GTA developers, Northern Ontario mining operators and Eastern Ontario municipalities specify MegaDome through Building Depot as their default fabric building solution.
Engineered to your site, your budget and your soil.
Concrete Pier
Drilled or augered reinforced concrete piers. Lowest-cost option, ideal for sites without a slab requirement and for sloped or rural builds.
Reinforced Slab
Engineered reinforced concrete slab with thickened edge under the perimeter base channel. Standard for shop, warehouse, dairy and wash-down applications.
Curb Wall + Pier
Pier foundation with a 12–24" perimeter curb wall poured monolithic with the floor. Standard for clean-floor commercial and equestrian buildings.
Concrete L-Block
Pre-cast concrete L-blocks retain a working pile or commodity (salt, sand, aggregate, grain) inside a clear-span dome. Standard for bulk storage.
Turnkey installation by Building Depot crews.
Through the install, the owner works with a single Building Depot project manager. Weekly status updates document progress, upcoming milestones and any decisions required from the owner. At completion the owner receives an engineered as-built documentation package: stamped drawings, foundation reactions, anchor schedules, ratchet tension log and the manufacturer warranty certificates.
Post-handover, the same Building Depot crew is the team that handles any warranty work, repair calls, annual maintenance and eventual re-membrane. That continuity is one of the most important reasons Ontario owners specify Building Depot for MegaDome — accountability runs from the day the contract is signed through every service call over the building's 25-year design life.
Backed for the long haul.
MegaDome MegaDome installation services carry a 25-year limited warranty on the structural steel frame and a 15-year limited warranty on the PVC membrane. Both warranties cover materials and workmanship and are honoured directly by Building Depot — Ontario's Authorized MegaDome Dealer — so warranty claims are resolved by the same team that installed the building, not bounced between a dealer, a manufacturer and a sub-contracted installer.
Hardware components — ratchet tensioners, anchor brackets, ventilation louvers and door systems — are covered under the membrane warranty. Building Depot maintains a full inventory of replacement membrane panels, brackets and hardware in Ontario, which means warranty service is typically scheduled within days, not the weeks it takes a U.S.-based supplier to ship parts across the border.
Simple, predictable upkeep.
Maintenance on a MegaDome MegaDome installation services is intentionally minimal — that's a core part of the value proposition versus conventional steel. Annual maintenance comprises a visual inspection of the membrane surface and ratchet tensioning system, a check of ridge vents and gable louvers, a tightening of anchor bolts where exposed and a wash-down of any accumulated debris. The hot-dip galvanized steel frame requires no painting, no rust treatment and no panel replacement over the building's design life, which is a meaningful operating-cost advantage over painted metal buildings that demand recoating every 10–15 years.
Building Depot offers an Ontario-wide annual inspection and re-tensioning service for operators who want a turnkey maintenance contract. A typical building requires a half-day visit once a year to remain in warranty-compliant condition. At the 5–7 year mark, our crews perform a full re-tension of the membrane to compensate for the natural relaxation that occurs in any PVC fabric structure. With that simple maintenance cycle, MegaDome buildings routinely deliver 25–30+ years of service before any fabric replacement is required.
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