Compare the highest-rated hvac professionals in Grantham, New Hampshire. All contractors are licensed, insured, and verified through our rigorous screening process.
A premier full-service HVAC contractor specializing in high-efficiency heating and cooling systems for Grantham's harsh winters and humid summers. They are known for exceptional craftsmanship in system installation, complex ductwork design, and 24/7 emergency repair services. They are certified dealers for top brands like Trane and Mitsubishi.
A trusted local provider with deep expertise in servicing and replacing oil and propane furnaces, which are common in the region. They offer comprehensive maintenance plans to ensure system reliability throughout the long heating season and are specialists in air quality solutions and boiler service.
Specializes in modern, energy-efficient HVAC solutions, including advanced heat pump systems and geothermal options for environmentally conscious homeowners. They focus on reducing energy costs through proper system sizing, home energy audits, and upgrades, making them a go-to for newer homes and retrofits.
Grantham, NH, experiences a humid continental climate with cold, snowy winters (average lows in the teens) and warm, humid summers. This creates a high year-round demand for reliable HVAC services, with a strong emphasis on robust heating systems (furnaces, boilers, heat pumps) and increasing adoption of energy-efficient cooling. The local market is competitive among a small number of established, full-service providers who must be adept at handling older oil-based systems and installing modern, efficient alternatives. Emergency service capability during winter storms is a critical differentiator for local companies.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Grantham regulations and climate