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One group · Three specialized solutions · Ontario

Built on Trust.
Driven by Solutions.

Renco Group delivers commercial and residential caulking, waterproofing and expansion joint work — plus rapid-response service and building envelope advisory — through three specialized divisions.

Call 647-581-3517Commercial · Residential · Institutional
Glazed curtain wall façade of a commercial building, joints and transitions visible across the elevation

The group

One group. Three specialized solutions.

Renco Group works across three divisions. Each one runs on its own discipline and schedule — and behind all three is the same standard of workmanship and the same people to call.

Renco Restoration & Waterproofing

Protect. Restore. Last.

Caulking, waterproofing and expansion joint systems for commercial, residential, industrial and institutional buildings.

  • Commercial and residential caulking
  • Waterproofing and moisture protection
  • Expansion joint systems
Explore Restoration & Waterproofing
Renco Express

Fast. Efficient. Reliable

Rapid-response crews for smaller, time-sensitive scopes: service calls, localised repairs and short-notice work.

  • Service calls and small repairs
  • Short-notice site attendance
  • Localised sealant and leak repairs
Explore Express
Renco Consulting

Expertise. Strategy. Growth

Advisory support before the work starts: condition reviews, scope definition and repair strategy.

  • Building envelope condition reviews
  • Scope definition and repair strategy
  • Specification and product review
Explore Consulting

Why Renco Group

Sealing work that holds up after the site trailer leaves

Caulking, waterproofing and expansion joints are small line items on a construction budget and the first thing to fail when they are rushed. Our approach is built around the parts of the job that decide how long the work lasts.

Professional workmanship

Joints are cut out, prepared and tooled properly. The finished bead is consistent, and it is the same standard on the back elevation as on the front entrance.

Commercial & residential expertise

From curtain wall perimeters and parking decks through to windows, doors and exterior trim on a single home — the same crew handles both ends of the range.

Reliable project execution

Realistic sequencing, clear scheduling and communication that keeps general contractors and property managers informed rather than chasing.

Quality materials

Sealants, primers and membranes are selected for the substrate and the movement each joint has to absorb, and installed to the manufacturer’s requirements.

Detail-focused installation

Corners, terminations, penetrations and transitions are detailed first, because that is where water actually gets in.

Clean, considerate sites

Work areas are protected and left clean — a requirement on occupied buildings, and simply how the job should be done everywhere else.

What we do

Three services, one continuous line of defence

Every building has joints. Ours is the trade that closes them — and keeps them closed while the structure moves, settles and weathers.

All services

Project types

The kind of work we take on

Curtain wall perimeters, parking decks, plaza waterproofing, movement joints and residential weather sealing — across commercial, institutional, industrial and residential buildings.

All projects

Our approach

The difference is in the joint you never think about again

A sealant joint is only as good as the preparation behind it. We would rather spend the extra hour cutting out failed material and priming the substrate than come back in two years to do the same elevation twice.

Illustration of a tooled sealant bead between two precast concrete panels
Precision
Joint geometry, backer rod sizing and bead profile are not details we improvise on site. They determine whether a sealant can actually do its job.
Durability
Products are chosen for the substrate and the movement the joint sees — not for what happens to be on the truck that morning.
Clean workmanship
Straight lines, tight terminations, protected surfaces and a work area left the way we would want to find it.
Professional communication
You hear about schedule changes, access needs and site conditions from us before they become your problem.
Attention to detail
Corners, penetrations, transitions and terminations get the time they need, because that is where envelopes fail.
Built for commercial requirements
Site documentation, coordination with other trades, phased access and work in occupied buildings are part of how we plan a job.

Where we work

Across Southern and Eastern Ontario

We take on commercial and residential work throughout Toronto & the GTA, Hamilton, Niagara, Ottawa and surrounding Ontario communities.

  • Toronto
  • Greater Toronto Area
  • Mississauga
  • Brampton
  • Vaughan
  • Hamilton
  • Burlington
  • Oakville
  • St. Catharines
  • Niagara Region
  • Kitchener–Waterloo
  • Ottawa

Working somewhere not listed? Get in touch — if it is within reach of one of those corridors, we can usually help.

Have a project in mind?
Let’s talk about it.

Send us the building, the scope and your timeline. We will come back with a clear quote and a realistic schedule.