Marten Mountain Metal Works Ltd (MMMW) is a proud, locally owned business in Slave Lake, Alberta, celebrating 50 years of excellence in 2025. As an independent Lennox Dealer, we specialize in providing top-notch heating and cooling sales and service, catering to both residential and commercial clients. Our expertise extends to custom sheet metal fabrication, ensuring tailored solutions for all your needs. We offer free quotes within a 50 km radius, allowing you to plan your projects with ease and confidence. For unparalleled service and quality, call 780-849-3015 or email us at mmmw@telusplanet.net. Let MMMW be your trusted partner for all your heating, cooling, and sheet metal fabrication requirements. Contact us today to experience the difference that half a century of dedication and skill can make. more... See more text