Allweathercoating vs Retro Specialty Contractors: how two Metro Vancouver concrete and parkade contractors compare

What each firm focuses on

Retro Specialty Contractors is a concrete and parkade specialist working on commercial and industrial structures across British Columbia. Their published scope reads like a structural concrete menu: concrete repair, concrete protection and resurfacing, grouting and epoxy injection, structural strengthening, expansion joints and sealants, waterproofing and parkade restoration, and traffic-deck membranes. With 30 years in BC, roughly 20 construction employees, and a stated record of more than 2,000 projects, they have depth in heavy concrete work. Their public project list points to that experience, naming structures such as the Burrard Bridge, BC Place Stadium, the Vancouver Convention Centre and Canada Place, PARQ, and the YVR A/B connector. That is genuine infrastructure-grade concrete experience, and it deserves credit.

Allweathercoating comes at buildings from the envelope side. Founded in 1986, the company runs rope-access crews certified to IRATA and SPRAT standards under WorkSafeBC Part 11 fall protection. The distinguishing detail is that the same crews do multiple trades. A crew rigged on the north face of a Burnaby high-rise can wash the windows, cut out and replace failed silicone sealant at the window perimeters, patch a spalled concrete edge, and lay down a balcony membrane, all in one access setup. The service list runs across high-rise and commercial window cleaning, exterior and elastomeric coatings, sealant and caulking replacement, balcony and parkade waterproofing, building envelope repair, leak remediation, and building restoration.

So the plain difference is depth versus breadth on a specific axis. Retro carries deep structural concrete capability. Allweathercoating carries broad rope-access envelope capability with concrete as one of several trades in the same crew.

Company snapshots

Services and scope, side by side

The table below lists common exterior maintenance service lines and marks "Yes" only where each company's public website confirms it. Where a line is not on a company's public site, it reads "Not listed." That does not mean the firm cannot do the work. It means the public site does not name it, and you should confirm directly if it matters to your project.

Based on each company's public website, July 2026.

Access method matters as much as the trade

On a parkade or a low industrial deck, access is straightforward: crews walk on and work at grade. That is much of Retro Specialty Contractors' world, and a ground-level or deck-level concrete crew is the right tool for heavy structural repair, epoxy injection, and slab strengthening. The work is about the concrete, not about reaching it.

On a vertical facade, access is a real part of the job. Reaching a spalled concrete edge 15 storeys up, or a failed sealant joint on the 22nd floor of a downtown Vancouver tower, means either scaffold, a swing stage, or rope access. Allweathercoating's crews are IRATA and SPRAT certified, so they rig and work on the face under WorkSafeBC Part 11 fall protection without waiting on scaffold erection. That access method is why the same crew can move from window cleaning to sealant to spot concrete to membrane on one setup: they are already on the wall. For a strata weighing a facade program, the access question is not a detail. It shapes the schedule, the resident disruption, and which trades can practically be combined.

Where the two scopes overlap

Three service lines sit in both companies' public scopes: concrete restoration, parkade and traffic-deck membrane work, and sealant work. If your project lives entirely inside those three lines, both firms are plausible, and the deciding factor is the nature of the concrete. A parkade slab with widespread delamination, rebar corrosion driving concrete spalling, and a structural engineer calling for strengthening is a structural job first and a membrane job second. That leans toward a concrete specialist. A parkade where the slab is sound but the traffic-deck membrane has reached end of life, the expansion-joint sealant has hardened, and a few edges need spot patching is an envelope and membrane job, which an integrated rope-access crew can turn around efficiently.

The overlap is real, and it is worth being honest about it rather than pretending the two firms never do the same work. They do. The useful question is not who does concrete, because both do, but what kind of concrete problem you have.

When Retro Specialty Contractors is the strong choice

When the core of the job is structural concrete, Retro Specialty Contractors is a genuine specialist and a sound choice. Their 30-year record in BC and their portfolio on large structures signal real capability with heavy structural repair, epoxy injection, grouting, and structural strengthening. If an engineer's report on your parkade or industrial deck calls for structural repair rather than surface renewal, that is exactly the kind of work their public scope centres on.

Large commercial and industrial concrete programs also tend to reward a contractor whose whole business is built around that work. Structural strengthening, expansion-joint rebuilds, and epoxy injection on a working commercial structure need sequencing, load considerations, and concrete detailing that a dedicated concrete crew handles day in and day out. If that describes your project, Retro belongs on your shortlist, and we would say so to a strata council that asked us.

Where Allweathercoating fits

Allweathercoating fits when a high-rise or commercial building needs several envelope trades handled together, and rope access is the practical way to reach the work. The 1986 founding gives 40 years of local history on Metro Vancouver buildings, from downtown Vancouver concrete towers to wind-swept North Shore slopes. The IRATA and SPRAT certification, held by the technicians who actually do the work, means the crew can be rigged and productive on a facade without scaffold, on a per-building safety plan under WorkSafeBC Part 11.

The integrated model is the real differentiator. Most exterior maintenance projects on an aging strata building are not one trade. They are a mix: window cleaning that is overdue, sealant joints that have gone hard and are letting water in, a coating that is chalking, a balcony membrane near end of life, and a handful of spalled concrete edges. Splitting that across a window cleaner, a caulking crew, a coatings crew, a membrane installer, and a concrete patcher means five mobilizations, five access setups, five sets of resident notices, and five points where trades can point at each other when something leaks. Allweathercoating puts those trades in one rope-access crew, so the sealant, coating, concrete, and membrane work happen together and one contractor owns the result.

For the concrete and parkade side of that scope specifically, see our parkade waterproofing service and our building restoration service. For the joint work that so often accompanies concrete on a facade, see sealant and caulking.

How a strata or property manager should choose

The cleanest way to choose is to let the building tell you, not the label on the contractor. Start with a scope assessment tied to your depreciation report and any engineer's findings. Ask one question: is the problem structural, or is it envelope?

If the assessment and the engineer point to structural concrete, delamination across a slab, rebar corrosion, a parkade that needs strengthening, favour a concrete specialist. Retro Specialty Contractors is a strong candidate for that work. If the assessment shows several envelope issues at once, tired sealants, a chalking coating, an aging membrane, and only minor concrete spalling, an integrated rope-access contractor can address them on one mobilization, and Allweathercoating is built for that. On some large projects the right answer is both: a structural concrete specialist for the heavy repair, and an envelope contractor for the sealant, coating, and membrane work around it. There is no shame in using two firms when the scope genuinely spans two specialties.

Whichever way your building leans, the decision should follow the assessment. Match the contractor to what the building needs. That is the fair test, and it protects strata funds better than picking a firm by reputation alone.

If you want an assessment that separates the structural questions from the envelope questions, our team scopes both in one walkthrough and tells you plainly which parts, if any, belong with a structural concrete specialist. Start on our waterproofing contractor page or see other side-by-side comparisons on the Compare hub.