Steel Buildings London Ontario: Prefab Garages, Workshops and Warehouses
Pre-engineered steel buildings for London and Southwestern Ontario — supplied as a kit or fully erected, with engineer-stamped drawings and a custom quote within 24 hours.
- Engineered for London’s 1.9 kPa snow and 0.47 kPa wind loads
- Stamped drawings to support your City of London permit
- CSA A660 certified steel, Canadian made
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Steel Garages, Workshops & Commercial Buildings in London
Tower Steel Buildings supplies pre-engineered steel and metal buildings across London, Middlesex, Elgin and Southwestern Ontario: residential garages and shops, farm buildings, and commercial and industrial buildings.
Buy a prefab steel building kit with delivery, or have us manage the whole build: engineering, foundation, erection and permit support. Every building is engineered for the snow and wind loads at its exact site, which rise quickly north of London toward the Lake Huron snowbelt.
- Kits delivered across Southwestern Ontario
- Engineer-stamped drawings
- Supply only or supply & erect
Steel Building Kits for Sale in London
Start with a popular size. Each kit is engineered for your site in London or Southwestern Ontario and quoted for your project.
Browse by type: garages · workshops · truck garages · farm buildings · warehouses · commercial · all kits
Our Services in London Ontario
Looking for a shop builder or steel building erectors near London? Choose only the parts you need, or let one company handle the whole building. Your quote lists each service separately.
Engineering
Building and foundation drawings stamped by a licensed Ontario engineer, using the snow and wind loads for your site.
Kit & delivery
CSA A660 certified steel from our own Ontario factory, delivered to your site in London or Southwestern Ontario.
Foundation
Concrete foundation coordinated with your building’s anchor bolt layout and loads.
Erection
Erection crews assemble the frame, roof and walls following the approved drawings.
Projects Completed in London Ontario
Tower Steel Buildings has supplied steel buildings in London and Southwestern Ontario within about 75 km, from a 30 × 40 building in St. Thomas to a 100 × 250 commercial building in London.
30 × 50 Farm Steel Building, Full Turnkey
About 38 km west of London. The client chose Tower for a full turnkey farm building: engineering, manufacturing, foundation and erection through one company. The result is 1,500 sq ft of covered space for farm use.
- 30 × 50 ftSize
- 1,500 sq ftFloor area
- Full turnkeyEngineering to erection
100 × 250 Commercial Steel Building in London, Full Service
Our largest project in London: 25,000 sq ft with a 20 ft eave height. Tower handled engineering, foundation, erection and permit support along with the building kit and delivery.
- 100 × 250 × 20 ftSize
- 25,000 sq ftFloor area
- Full serviceKit to erection
Sizes are width × length (× eave height where recorded), in feet. Distances are approximate, from central London. Customer names and site addresses are withheld.
Tell us your size, location and use. We will send a custom quote within 24 hours.
London Snow and Wind Loads for Steel Buildings
The Ontario Building Code gives London a ground snow load of 1.9 kPa, about double Toronto’s 0.9 kPa, and a design wind pressure of 0.47 kPa.
Loads change quickly across the region. St. Thomas, closer to Lake Erie, is 1.4 kPa, while Stratford and Exeter in the Lake Huron snowbelt reach 2.3 to 2.4 kPa. Every Tower building is engineered for the loads at its exact site.
| Location | Snow load Ss | Wind 1/50 | Jan. design temp |
|---|---|---|---|
| London | 1.9 kPa | 0.47 kPa | −18 °C |
| Strathroy | 1.9 kPa | 0.47 kPa | −17 °C |
| St. Thomas | 1.4 kPa | 0.47 kPa | −16 °C |
| Ingersoll | 1.7 kPa | 0.48 kPa | −18 °C |
| Woodstock | 1.9 kPa | 0.44 kPa | −19 °C |
| Stratford | 2.3 kPa | 0.45 kPa | −18 °C |
| Exeter | 2.4 kPa | 0.48 kPa | −17 °C |
| Toronto, for comparison | 0.9 kPa | 0.44 kPa | −18 °C |
Source: Ontario Building Code, SB-1 Table 2, Climatic Design Data. Ground snow load is not the same as roof design load; your engineer calculates the final loads for your site.
Permits and Building Process in London Ontario
Most steel garages and workshops in London need a building permit. On residential lots, check the zoning limits first, especially height.
Check height & coverage
In residential zones, accessory buildings together can cover no more than 10% of the lot, and are limited to 4 m (13.1 ft) tall, or up to 6 m (19.7 ft) if set back further from the lot line.
Check placement
Accessory buildings go in the interior side or rear yard, at least 0.6 m (2 ft) from side and rear lot lines. Zoning also limits business use, including storage.
Apply online
Apply through the City’s online building permit portal, with engineer-stamped drawings from Tower. Plumbing needs a permit, and electrical work goes through the ESA.
Book inspections
You are responsible for calling the City for each required inspection during construction.
Based on the City of London’s common homeowner projects guidance. Commercial, industrial and farm properties have different zoning rules. Confirm current requirements with the City before you apply, or see our Ontario permit guide.
Price Range for London Steel Buildings
For early planning, these are our current Ontario ranges for the steel building package. Foundation, erection and site work are extra, and your site’s snow and wind loads can affect the final number.
Larger commercial, industrial and farm buildings.
Size starts to bring the cost per square foot down.
Smaller buildings cost more per square foot.
Your price depends on size, height, snow and wind loads, doors, insulation, finishes, foundation and delivery. Read the Ontario steel building cost guide or get a project-specific quote.
Steel Buildings Across London & Southwestern Ontario
We supply steel buildings across London, Middlesex, Elgin and the surrounding region. Places marked with a dot have Tower projects.
- London
- Ilderton
- St. Thomas
- Strathroy
- Appin
- Courtland
- Bothwell
- Petrolia
- Komoka
- Dorchester
- Lucan
- Arva
- Thorndale
- Belmont
- Mount Brydges
- Ingersoll
- Glencoe
- Aylmer
Part of our steel buildings in Ontario service area.
Nearby: Kitchener · Chatham-Kent · Windsor
What Our Clients Say
Trusted by Customers in London & Across Canada
Frequently Asked Questions
London Steel Building FAQ
Have a project-specific question? The fastest answer is often a free quote request.
1. Do I need a building permit in London?
Most steel garages and workshops in London need a building permit, which you can apply for through the City’s online portal. On residential lots, accessory buildings are limited to 10% lot coverage and 4 m (13.1 ft) in height, or up to 6 m with a larger setback.
2. What is the average cost per square foot in London?
For early planning, our Ontario ranges for the steel building package are about $30–$45 per sq ft for small garages and workshops, $25–$35 for mid-size buildings and $20–$30 for large buildings. Foundation, erection and site work are extra. See our Ontario cost guide.
3. How long will construction take?
It depends on the building size, permit timing and the scope you choose. Your quote lists what is included and the expected schedule, so you can plan the foundation and delivery around it.
4. Which insulation is ideal for London’s weather?
Insulated metal panels or fibreglass systems with a vapour barrier are common choices for heated shops and garages, and they help control condensation in winter. Insulation options are listed in your quote.
5. Do you work with local contractors?
Yes. You can buy the kit and use your own local contractor for the foundation and erection, or add our foundation and erection services. Our 100 × 250 building in London was a full-service project.
6. Do you erect steel buildings in London, or only sell kits?
Both. You can buy a kit with delivery, or add engineering, foundation, erection and permit support. Several of our London-area projects, in London, Ilderton and Courtland, were full service.
7. Do you include foundation designs?
Foundation drawings are prepared to match your building design and its loads. Your quote lists exactly which drawings and services are included for your project.
Ready to Start Your London Project?
Share your size, location and how you will use the building. We will prepare a project-specific quote for your site in London or Southwestern Ontario.