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Commercial construction, renovation and fit-outs in Montreal

Offices, retail stores, restaurants and clinics: formwork and slabs, interior systems, roofing, mechanical and electrical coordinated by a single contractor, with a written quote before the job.

Commercial construction

Offices, retail stores, restaurants and clinics: we build and renovate commercial spaces that are solid, functional and compliant, from formwork to interior fit-out.

A commercial space has to open on time and work from day one. We coordinate the structure, the fit-out, the building systems and the building envelope, with a single project lead.

  • Every tradeConcrete, interior systems, roofing, electrical, plumbing and HVAC coordinated by one team
  • Construction CodeSafety, accessibility and fire protection under the Quebec Construction Code
  • Written schedulePlanned phases to limit the impact on your operations

I

Our commercial services

From structure to finishes, we handle every stage of your commercial project.

Formwork and concrete

Wood, metal or insulated formwork for load-bearing walls, columns, beams, elevator shafts and underground parking. Accurate formwork ensures the dimensions and strength of the concrete structure.

  • Walls and columns
  • Precision
  • Strength

Slabs on grade

For buildings with heavy loads (pallets, machinery, foot traffic): grading, compaction, geotextile and gravel, a power-trowelled reinforced slab, with options for radiant floor heating and dust-proofing treatment.

  • Reinforced slab
  • Compaction
  • Wear-resistant

Concrete sidewalks and walkways

A prepared and compacted base, formwork, vibrated concrete for a uniform mass, a non-slip finish and proper curing to withstand freeze-thaw cycles.

  • Compacted base
  • Non-slip
  • Concrete curing

Interior systems

Light, adaptable metal studs, fire-rated partitions and acoustic assemblies, suspended ceilings that integrate ventilation, electrical and lighting.

  • Metal studs
  • Suspended ceilings
  • Acoustics

Commercial roofing

Two-ply elastomeric membrane, reflective white TPO membrane or metal roofing: each system is chosen for the building, its surroundings and the target energy performance.

  • Elastomeric
  • TPO
  • Metal

Heating, ventilation and air conditioning

Central or hybrid systems, air exchange and rooftop units, installed by specialized contractors we coordinate, for occupant comfort and air quality.

  • Rooftop units
  • Ventilation
  • High efficiency

Commercial plumbing

Water supply, code-compliant drainage and specialized plumbing for kitchens, clinics and labs, done by CMMTQ member contractors under our coordination.

  • Kitchens
  • Clinics
  • CMMTQ

Electrical

Distribution, lighting and equipment connections, done by a CMEQ member master electrician and coordinated with the other trades.

  • CMEQ
  • Lighting
  • Coordination

II

The projects we carry out

New construction or major renovation, in Montreal, on the North Shore, including Laval, and on the South Shore.

  • Offices: new construction and reconfiguration of modern, adaptable spaces.
  • Retail stores and restaurants: complete fit-outs, commercial kitchens and building systems.
  • Medical and dental clinics: partitions, specialized plumbing and sanitary requirements.
  • Service stations and convenience stores: slabs, envelope and systems suited to the use.
  • Institutional buildings: major renovations that meet safety and accessibility standards.

III

How a commercial project unfolds

One person in charge, from the first drawing to opening day.

  1. Meeting and analysisYour business needs, your opening date and the constraints of the space or the lot.
  2. Plans and coordinationWe work from your architect's and engineers' plans, or with the professionals we recommend.
  3. Detailed quoteQuantities, inclusions, exclusions and schedule. No work before you sign.
  4. ConstructionStructure, envelope, interior systems and building systems, coordinated by one person in charge.
  5. HandoverA final inspection with you, correction of deficiencies and delivery of the written warranties.

IV

Why choose Construction AIM for your commercial project

Integrated management: a single point of contact and a schedule under control.

  • A single point of contact: we coordinate the specialized subcontractors and keep you informed at every stage.
  • A planned schedule: the phases are sequenced from the start to limit delays and the impact on your operations.
  • Durable materials: high-strength concrete, galvanized steel, energy-efficient roofing membranes.
  • Everything in writing: every extra is presented and approved in writing before it is carried out.

Rules that apply

Standards
Quebec Construction Code
Electrical
Master electrician (CMEQ)
Plumbing and HVAC
CMMTQ members
Health and safety
CNESST
Labour
CCQ wage rates

Municipal permits are coordinated with you; their fees are not included in our quotes.

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Words you will hear on site

The terms you come across in a commercial project, from the lease to the work.

Leasehold improvements
Fit-out work in leased premises, done for the tenant or by the building owner.
Commercial fit-out
Partitions, ceilings, coverings and finishes of a store or an office, according to the plans and the intended use.
Occupied premises
A building where activities continue during the job. The work is then phased, and dust and noise are controlled.
Certificate of occupancy
A City of Montreal document required to carry on a commercial activity in a space.

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Service area

We fit out and build commercial premises in Montreal, on the North Shore, including Laval, and on the South Shore.

  1. 01
    MontrealEvery borough on the island, from the East End to the West Island: Anjou, Saint-Léonard, Rosemont, Villeray, Ahuntsic, Pointe-Claire, Kirkland and the rest.
  2. 02
    North ShoreLaval, Terrebonne, Repentigny, Blainville, Boisbriand, Saint-Eustache and Mirabel.
  3. 03
    South ShoreLongueuil, Brossard, Boucherville, Saint-Lambert, La Prairie and Châteauguay.
  4. Elsewhere in Quebec?Call us at (514) 654-9184 and we will tell you whether we can take on the job.

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Frequently asked questions

What types of commercial projects do you do?

Offices, retail stores, restaurants, medical and dental clinics, service stations and convenience stores, as well as institutional buildings, in new construction or major renovation, in Montreal, on the North Shore, including Laval, and on the South Shore.

Can you manage the project from A to Z?

Yes. We coordinate the plans with the professionals, the permit applications with you, the structural, envelope and fit-out work, the specialized subcontractors and the final handover. You have a single point of contact.

Do you need an occupancy permit to open a business in Montreal?

Yes, in most cases. The City of Montreal requires an occupancy permit (also called a certificate of occupancy) for a commercial activity in premises that are not a dwelling. An alteration permit may be required beforehand, in particular to fit out new premises or change the use. The application is made in the operator's name, with the borough, and requirements vary from one borough to another. We prepare the technical documents related to the work with you. Source: City of Montreal.

Who does the electrical and plumbing work in commercial premises?

In Quebec, an electrical contractor must be a member of the Corporation des maîtres électriciens du Québec (CMEQ), and a plumbing and heating contractor a member of the Corporation des maîtres mécaniciens en tuyauterie du Québec (CMMTQ). As the general contractor, we coordinate these specialized contractors and their schedule on site.

How long does it take to fit out commercial premises?

As a guide, standard commercial premises (pharmacy, restaurant) generally take 3 to 6 months, permits included, and an office or medical centre project 8 to 12 months. The exact schedule is set out in the quote.

Do you offer energy-efficient solutions?

Yes: reflective TPO roofs that reduce cooling needs, high-performance insulation in interior systems, high-efficiency HVAC systems and water-saving plumbing.

How much does a commercial project cost?

Our prices are based on the current wage rates of the Commission de la construction du Québec (CCQ), set by the collective agreements for the sector concerned (residential, institutional and commercial, industrial), plus the materials and equipment specific to each job. Every quote is free, detailed and prepared after a site visit.

What are leasehold improvements?

They are the work done in leased premises to adapt them to the occupant: partitions, ceilings, flooring, finishes. The lease often states who pays for them and who approves them. We price them from the plans or after a visit, with a quote that separates each package.

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Further reading

Our guides for commercial projects.

Next step

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Page updated October 17, 2026.

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