Termostal is a retailer specializing in equipment and supplies for heating, plumbing, climate control, sanitation, and related building systems. Its broad catalog serves both residential and industrial needs, bringing together products for installation, replacement, and home improvement. Heating options include boilers and central heating units, radiators, burners, heat pumps, solid-fuel boilers, water heaters, underfloor heating components, and solar thermal systems. The range also covers pumps, valves, pipes and fittings, filters, water-softening equipment, controls, insulation, and installation tools.

For climate control, Termostal offers residential and industrial air-conditioning and ventilation products, including air conditioners, chillers, heat-recovery units, and fan coil units. Sanitary products include bathroom accessories, taps, showers, baths, sinks, furniture, and other fixtures. The catalog additionally features drainage systems, electrical goods, tiles, centralized vacuum systems, and spare parts for heating and air-conditioning equipment. Customers can browse products by category and brand, view promotions, and use online shopping features such as a cart, wishlist, and product inquiries.