Monsieur Thermo specializes in thermal solutions, focusing on the replacement of thermal glass units for residential windows. Operating mainly on the South Shore of Montreal, they provide a comprehensive service that includes measuring existing thermos and installing new ones. Their thermos replacement service is a cost-effective alternative to full window replacements, helping homeowners save on additional costs like repainting or replacing interior moldings.

The company emphasizes energy efficiency by using modern double and triple Low-E glass with argon gas, which reduces heat loss while allowing natural light and solar heat into homes. Monsieur Thermo also offers a 10-year transferable warranty on their thermos replacements, reflecting their commitment to customer satisfaction. They are proud distributors of Thermos Rive-Nord products, including the ClimaGuard 80/70 low-emissivity glass, designed to enhance indoor comfort by minimizing heat loss.