Commercial Roof Installation & Replacement
A worn-out roof on a warehouse, retail plaza, office, or condo building quietly costs more every season in repairs, energy loss, and tenant complaints. Markit Roofing delivers complete commercial roof replacement and commercial roof installation for owners, property managers, and builders who need a roof system designed to last through Alberta’s hail, snow, and freeze-thaw.
We handle projects of every size, from commercial roof replacement in Calgary on occupied buildings to commercial roof replacement in Edmonton for industrial sites. As an AARA member commercial roofing contractor with IKO and Firestone accreditation, we build roofs that meet code and manufacturer warranty requirements. Call Markit Roofing today for a site assessment.
Signs Your Commercial Roof Needs Total Replacement
Repeated repairs may eventually cost more than replacing an ageing commercial roof. Moisture trapped below the membrane can damage insulation and conceal deterioration that a surface patch does not address. A roof assessment helps establish whether targeted repairs, a recover, or full replacement best suits the existing assembly and its condition.
- Leaks keep coming back after each repair.
- Repair costs keep rising year after year.
- Wet insulation appears in roof core cuts.
- Ponding water that stays for days on end
- Widespread blistering, splits, and ridges
If your building shows any of these warning signs, Markit Roofing can assess whether repair, recover or full replacement is the better investment. Core samples and photos help establish the extent of damage and remaining service life, so you can plan the capital cost around documented findings rather than assume every recurring leak requires a new roof.
Commercial Re-Roofing Services
Full Tear-Off Roof Replacement
A tear-off removes existing roofing down to the structural deck, allowing inspection for rust, rot or deflection and identification of repairs needed before the new system.
Our commercial roof tear-off and replacement addresses the vapour barrier, insulation, cover board, membrane and flashing, with drains and curbs included where the agreed scope requires. Wet insulation, existing layers, deck condition and applicable requirements help determine whether full removal is appropriate.
Roof Recover Over a Sound Deck
When the existing roof is dry and the deck is sound, a recover may cost less than full replacement. For this commercial re-roofing option, core cuts and moisture scans inform the assessment, alongside existing layers, loading, material compatibility and applicable requirements. A dry surface alone does not establish suitability.
Where suitable, a cover board and compatible membrane go over the existing system, potentially reducing disposal costs, project duration and disruption to occupants.
New Construction Roof Installs
Builders, developers, and general contractors rely on Markit Roofing for new commercial roof installation on warehouses, retail units, offices, and multi-family buildings. We work from architectural drawings and specifications, coordinate with other trades on site, and install complete systems from vapour barrier to final flashing.
Our crews meet Alberta Building Code and energy code requirements, helping your project pass inspection and hand over on schedule.
Insulation & Drainage Upgrades
A replacement provides an opportunity to address longstanding drainage problems. We design tapered insulation layouts that direct water toward drains, helping reduce ponding on flat roofs. The proposed slope and drainage details must suit the building and roof assembly.
Insulation upgrades are specified to suit applicable energy requirements and the roof assembly. Improved thermal performance can reduce heat loss, while air leakage, drainage and other building conditions also affect winter performance.
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Commercial Properties Where We Install New Roofing
Large distribution centres and industrial buildings have wide, open roof areas with heavy rooftop equipment and forklift traffic below. We complete warehouse roof replacement projects in phases, section by section. This lets shipping, receiving, and daily operations continue while we install the new roof, and keeps loading docks and stored stock protected throughout.
Strip malls and retail centres have several tenants under one roof, each with its own opening hours and rooftop units. For retail plaza roof replacement, we schedule noisy work outside peak trading times, keep entrances and parking clear, and coordinate directly with the property manager and each tenant on every stage of the project.
Multi-family buildings need a roof that protects residents, not just a structure. Our condo building roof replacement service includes clear notices for residents, secure crane and material staging areas, and regular updates for condo boards, so residents always know when and where work is happening above their units and parking areas.
Offices, schools, churches and clinics often have complex roofs with skylights, parapets and mechanical penthouses. We plan these replacements around occupancy schedules, protect interior spaces from dust and noise, and install high-performance roof systems that suit each building’s long-term maintenance plan, energy targets and budget.
Our Commercial Roof Replacement Process — Survey to Warranty
A commercial roof is a major capital investment, so owners and managers need a clearly defined scope. Markit Roofing follows a documented process from survey to warranty, distinguishing repairs, recover and replacement options before agreeing on the roof system, work sequence and closeout requirements.
Roof Survey and Core Cut Tests
We start with a full roof survey, measuring the area, inspecting flashings and drains, and taking core cuts to assess the roof assembly. Findings help compare repair, recover and replacement options; deck concerns may require further investigation before the scope is finalized.
Detailed Specs and Fixed Quote
You receive a written specification listing the roof system, insulation, flashing details and warranty. The itemized, fixed quote defines the agreed scope; allowances, exclusions and any concealed-damage provisions should be clear so you can compare bids and plan your budget.
Planning Around Your Occupants
Before work begins, we agree on a schedule, crane and bin locations, safe access routes, and noise windows with your team. Tenants and staff receive advance notice, and our COR-certified crew follows a written, site-specific safety plan every single day.
Tear-Off and New Roof Installs
Our Red Seal-certified roofers remove the old roof in sections and close each area watertight before the end of every shift. Installers with National Torch Safety training handle all torch work, and daily photos keep you updated on progress.
Closeout Inspection & Warranty
Once complete, we inspect seams, flashing and drains with you or your consultant. You receive as-built photos, product data and applicable manufacturer warranty documents. Coverage, exclusions and maintenance requirements should be clear, helping manage aftercare and understand warranty conditions.
