Commercial Flat Roofing Specialists
Torch-on roofing, roof replacement and repairs in Edmonton, Calgary and across British Columbia.
Commercial Flat Roofing Contractor in Alberta and BC
Alliance One Constructions Limited specializes in commercial flat roofing and torch-on roofing for warehouses, retail units, offices, apartment buildings and homes across Alberta and British Columbia. From new installations to complete roof replacements and leak repairs, our fully insured crews deliver durable, code-compliant roofs backed by a written workmanship guarantee.
- Fully insured crews trained in torch-applied membrane systems
- Written workmanship guarantee on every installation
- Free, itemised written quotes
- Offices in Surrey, BC, Edmonton, AB and Calgary, AB
Roofing Services
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Commercial Flat Roofing
Flat and low-slope roofs for warehouses, retail, offices and apartment buildings.
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Torch-On Roofing
Two-ply SBS torch-on membrane systems with fully sealed, heat-welded laps.
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Roof Replacement and Repairs
Tear-offs, re-roofing, leak repairs and storm damage, backed by a written guarantee.
Fully Insured. Guaranteed Work.
Our roofing crews carry liability insurance and workers' compensation coverage, and every installation comes with a written workmanship guarantee issued in your name — for new roofs and renovations alike.
Insured and guaranteed roofingRecent Roofing Projects
Commercial flat roofs, torch-on systems and roof replacements completed by our own insured crews.
Edmonton, Alberta Roof Replacement
- Location: Edmonton, AB
- Roof size: 116,000 sq ft
Edmonton, Alberta Roof Replacement
- Location: Edmonton, AB
- Roof size: 87,150 sq ft
Edmonton, Alberta Roof Replacement
- Location: Edmonton, AB
- Roof size: 116,000 sq ft
Before and After
Drag the slider to compare the old gravel roof before the work with the roof after the work.
- Edmonton, AB roof replacement
Areas We Serve
From our offices in Surrey, BC, Edmonton, AB and Calgary, AB, our roofing crews serve commercial and residential clients across Alberta and British Columbia.
All service areasBritish Columbia
- Surrey
- South Surrey
- White Rock
- Richmond
- Delta
- Langley
- Burnaby
- New Westminster
Get a Free Roofing Quote
Tell us the size and condition of your roof and we will give you a straight answer on what it needs and what it will cost.
Request a free quote