Best HVAC companies on the South Shore of Montreal

Customers consistently praise Klimfax for friendly, knowledgeable staff and clean, reliable installations, though a few report communication delays and warranty hassles.

Customers consistently praise Thermo Climatisation ML for speedy, reliable installations, knowledgeable staff, and transparent communication about products and subsidies.

Customers consistently praise Service Rive Sud for speedy, professional work and transparent communication, though a few report missed appointments and limited post‑sale follow‑up.

Customers consistently rate Air Péloquin for its friendly, professional staff, clean installations and honest after‑sales support, making it a top choice for HVAC upgrades in Longueuil.

Customers rave about MST’s fast, courteous service and clean, professional installations, though a few cite scheduling hiccups and occasional communication gaps.

Customers consistently praise Hori‑Zone for speedy, polite service, thorough explanations and clean, professional installations at good prices.

Customers consistently praise Alcor for quick, courteous installs, knowledgeable staff and hassle‑free rebate handling, though a few isolated scheduling mishaps are reported.

Customers consistently praise Aigle Climatisation for fast, professional installations and honest, transparent service.

Customers rave about fast, courteous service and spotless installations, though a few note paperwork delays.

Customers consistently praise STL Nettoyage for quick, courteous service, meticulous HVAC cleaning, clear communication and fair prices.

Customers consistently praise D. Cormier for professional, on‑time service, clean installations and helpful guidance on equipment and rebates.

Customers consistently praise MV Solutions for fast, courteous service, skilled technicians, and clear communication.

Customers consistently praise Fortier & Frères for fast, courteous service and solid installations, though a few report high fees and occasional after‑sales delays.

Customers consistently praise Refrigeration Collette for fast, courteous service and high‑quality installations, with only an isolated complaint about a missing quote.

Customers overwhelmingly praise Perform Air for courteous, professional staff and clean, timely installations, though a minority report poor after‑sales follow‑up and scheduling issues.

Customers overwhelmingly praise Excel Climatisation for its professional, prompt, and clean HVAC service, though a few note occasional communication lapses and billing quirks.

Customers rave about Vortex‑Plus’s prompt, professional duct cleaning that leaves the air fresher and the job well‑communicated, though a few isolated complaints mention missed units or rude behavior.