The largest city on the South Shore and the historic heart of the agglomeration, Longueuil offers a remarkably diverse housing stock — from heritage homes in Old Longueuil to contemporary developments, along with post-war bungalows throughout the city.
From rue Saint-Charles to the new neighborhoods near the metro, Longueuil spans every era of construction. This diversity demands an inspector who can identify defects in a 1950s bungalow just as readily as in a condo delivered in 2024.
Longueuil rests on thick silty clay deposits left by the Champlain Sea. These fine, compressible soils are particularly sensitive to moisture variations, directly affecting foundation stability across the entire city.
Longueuil's diverse housing stock is reflected in the variety of issues we identify during our inspections.
We inspect properties in every borough and neighborhood of Longueuil:
From a century-old duplex on rue Saint-Charles to a 2024 condo near the métro, Longueuil's housing diversity means every inspection is different. Here's how we adapt our work to the type of property you're buying on the South Shore.
Longueuil is the largest city on the South Shore and one of the most active resale markets in the Greater Montreal area. Buyers face a particularly broad range of properties — heritage houses in Vieux-Longueuil, Coteau-Rouge bungalows from the 1950s-70s, post-annexation Saint-Hubert and Greenfield Park homes, recent condos near Place Charles-Le Moyne, and new builds along boulevard Roland-Therrien. Each typology hides specific risks that an inspector unfamiliar with Longueuil can easily miss.
Our pre-purchase inspection in Longueuil covers more than 400 points: foundation, structure, roofing, electrical, plumbing, ventilation, insulation, windows, exterior cladding, and the lot. We pay particular attention to silty-clay-related foundation movement, end-of-life French drains, knob-and-tube or aluminum wiring depending on era, and asbestos/vermiculite suspect materials in pre-1990 buildings. Report delivered within 24h*.
Detached and semi-detached homes in Longueuil span almost every era of Quebec residential construction. Pre-1940 heritage homes in Vieux-Longueuil typically have stone or unreinforced concrete foundations, cast iron drains, period wiring, and roofs that have been re-shingled multiple times. Coteau-Rouge and Saint-Hubert bungalows from 1950-75 commonly show Federal Pioneer panels, original galvanized supply lines, R-8 wall insulation, and clay-tile French drains nearing the end of their useful life. Recent homes in the Adoncour, Greenfield Park and Boulevard Roland-Therrien sectors look move-in ready but can hide ventilation defects, premature concrete shrinkage, or envelope flashing problems.
A home inspection in Longueuil takes 3 to 4 hours on site and includes a complete walk-through of every accessible level, attic, crawlspace and exterior. We document each finding with photos, severity rating, and recommended next steps. You receive a detailed written report within 24h* — useful for the notary, the broker, and your negotiation.
Longueuil has been one of the fastest-growing condo markets on the South Shore, particularly around the métro Longueuil-Université-de-Sherbrooke, Place Charles-Le Moyne, and the Pointe-Nord/Île Charron developments. The newer mid-rise and high-rise buildings often present construction-quality issues: balcony slab cracking, condensation between window panes, ventilation problems in interior units, fan coil noise transmission, and finishes already showing signs of premature wear after 5-10 years. Older condos converted from triplexes in Vieux-Longueuil bring their own set of issues — shared roofing, century-old structure, and limited mechanical separation between units.
Our condo inspection in Longueuil covers the unit interior (kitchen, bathrooms, windows, electrical panel, plumbing fixtures, ventilation) as well as the visible common areas (roof if accessible, hallway envelope, mechanical rooms, parking, foundation). We also recommend reviewing the contingency fund study, the syndicate's minutes, and the building's recent work history. Read what condo inspections can and cannot reveal in Quebec.
Longueuil has one of the densest stocks of small plexes on the South Shore — duplexes and triplexes are common throughout Vieux-Longueuil, LeMoyne and the older sectors of Saint-Hubert. Many of these properties were built between 1900 and 1960 and have accumulated decades of partial renovations: mixed plumbing (cast iron + copper + ABS), patchwork electrical (knob-and-tube remnants, fuse panels replaced with breakers, mixed aluminum/copper), multi-layer roofs, and sometimes balconies or staircases that no longer meet current code. Larger multi-unit buildings (5+ units) fall into the commercial multi-unit category and require a more extensive scope.
A plex and multi-unit inspection in Longueuil examines every accessible unit, common areas, the structure, the roof, all mechanical systems, the foundation and the exterior. For income properties, we also flag potential issues that could affect lease renewals, insurability, and major upcoming capital expenses (roof, drain, façade, panel upgrades). Custom quote within 24h.
Longueuil hosts significant commercial activity — boulevard Taschereau and its big-box retail strip, the Place Longueuil shopping centre, the industrial parks of Saint-Hubert and the airport zone, and the office buildings around Place Charles-Le Moyne. Commercial properties on the South Shore typically involve larger envelopes, flat membrane roofs, rooftop HVAC units, three-phase electrical service, and sometimes ageing structural elements (steel beams, masonry walls, reinforced concrete) that demand expert assessment before any acquisition or refinancing.
A commercial inspection in Longueuil covers the structure, the envelope, the roof, the electrical service, mechanical systems (HVAC, plumbing, sprinklers if applicable), accessibility, code compliance flags, parking, and the lot. We deliver a buyer- or lender-ready report adapted to the scale of the property — from a small Boulevard Taschereau commercial strip unit to a multi-tenant office in the métro sector. Custom quote.
Available 7 days a week. Report within 24h*. We know Longueuil inside and out.