144 licensed companies in Lachine: under 5 years (58), 10 to 19 years (44), 5 to 9 years (24), 20 years or more (18). Median in Lachine: 2019. Longest licensed in Lachine: Les entreprises J. Piccioni inc. (1984), Ross And Anglin Limitée (1984) and Les Entreprises Charta inc. (1984). Newest: Construction Dugo inc. (October 9, 2026) and 9562-3310 Québec inc. (October 5, 2026). Lachine, licences per year: 2022 (15), 2023 (7), 2024 (9), 2025 (12), 2026 (13).

Lachine: licences, contractors

Lachine, trades: renovation (60), specialty (45), heating (24), electrical (19), stoves (15), plumbing (14), foundations (11), septic (6), wells (6), masonry (6), windows (4), roofing (3). Subcategories in Lachine: any building (49), small buildings (42), electrical (19), framing (16), wood heating (15), home ventilation (15). Bonds in Lachine: 69 at $40,000, 75 at $20,000. 43 have another name.

Comparisons, Lachine

First licences in Lachine, by decade: 1980s (8), 1990s (5), 2000s (11), 2010s (51), 2020s (69). 20 years or more: 13% of licences in Lachine, 14th of 22 areas (island: 15%).

Neighbours of Lachine

Lachine covers Lachine. With 144 licensed companies, Lachine is 18th of 22 areas; Verdun (144) and Mount Royal (TMR) (114) on either side. Lachine share: 2% of 6,196 contractors.

Lachine: city permits

Lachine: 526 permits in 12 months, 87% residential. In Lachine: 330 alterations, 12 new buildings, 8 demolitions, 22 pools, 88 tree removals, 66 other certificates. In the descriptions for Lachine: 88 trees, 59 windows, 56 balconies and stairs, 41 roofs. Trades named in Lachine: roofing 41, plumbing 31, heating 2, electrical 4. Lachine comes 17th of 19, near Côte-des-Neiges (532), Saint-Léonard (488). Highest 67 (June 2026), lowest 14 (December 2025).

Source: Ville de Montréal, “Permis de construction, transformation et démolition”, open data, CC BY 4.0 · permits issued October 27, 2025 to October 26, 2026 · dataset updated October 29, 2026.

Lachine: permits and rules

In Lachine, the permit counter offers appointments with the permit team through an online form, but that service cannot be used to file an application; interior and exterior renovation applications are filed online. In certain sectors, construction and exterior changes require PIIA (site planning and architectural integration) approval (in Old Lachine this also applies to a sign or a satellite dish), and throughout the borough, work on residential buildings of 4 or more units is subject to it.

Official pages: Permit counter – Lachine (in French) ↗ · PIIA approval – Lachine borough (in French) ↗

Lead service lines: the City of Montréal programme →

Other trades in Lachine

Concrete and foundations — 11 licence holders in Lachine, the first licence in 1984.

Wood stoves and fireplaces — 15 companies in Lachine; the oldest licence dates from 1984.

Nearby in Greater Montréal

Brossard 370 Longueuil 1,015 La Prairie 137 Candiac 158 Boucherville 264 Laval 2,671 Saint-Bruno-de-Montarville 146 Sainte-Julie 214 Dollard-des-Ormeaux 152 Terrebonne 1,151

Licensed contractors in Lachine (Montréal)

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Lachine by the numbers

Lachine: years licensed, contractors