ERAYConstruction
Sustainable construction · Ontario

Low-Carbon From the Ground Up.

Eray Construction builds and retrofits to high-performance standards across Ontario — starting with the materials, then the envelope, then the systems that keep a building running on less.

Request an estimateWhat we do
Why Eray

Most of a building's carbon is decided before the first delivery arrives.

So that is where we start — at specification, where the decisions are still cheap to make and still possible to document.

Material first

Structure and finishes are weighed on embodied carbon, durability, and provenance before cost. Every specification is documented and traceable.

Verified, not assumed

Envelope targets are set at design stage and confirmed on site with blower-door testing and thermal imaging before anything is closed in.

Documented delivery

Permits, compliance paths, waste diversion, and commissioning records are handled in-house and handed over as one complete package.

What we do

Four disciplines, from specification through commissioning.

Material choice sets embodied carbon. The envelope sets operating energy. Modelling and records prove both actually landed.

Sustainable Materials & Low-Carbon Sourcing

Structure and finishes chosen on embodied carbon, durability, and provenance — mass timber, lower-carbon concrete, recycled-content steel.

High-Performance Building Envelopes

Continuous insulation, airtight detailing, and thermal-bridge-free assemblies — the fabric that decides what the building costs to run.

Renewable Energy & Building Systems

Solar, storage, heat pumps, and heat-recovery ventilation, sized against the building that was actually built.

Modelling, Compliance & Documentation

Energy modelling, Ontario Building Code compliance paths, waste diversion records, and a handover package that survives review.

All services
On site

Structure, envelope, and what they add up to.

Graded timber stock, air barrier going on before cladding, and a finished building carrying its own planting.

Structural timber stock, graded and stacked
Insulation and air barrier going on before cladding
Planted terraces on a completed building
How we build

Five stages, in the order the work has to happen.

Modelling precedes selection, selection precedes permitting, and nothing gets closed in before it has been checked.

  1. 01

    Site and design review: orientation, massing, and the envelope and material targets the project will be held to.

  2. 02

    Energy modelling and material selection, with embodied carbon and service life weighed alongside cost.

  3. 03

    Permitting and compliance documentation, including the code path the design will follow.

  4. 04

    Construction with staged envelope inspections and waste diversion tracked by stream.

  5. 05

    Commissioning, blower-door and thermal testing, and a documented handover package.

Next step

Tell us what you are building.

Send us the drawings or the site and we will come back with scope, material options, and a straight answer on what the performance targets will cost.

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