Harry P Carpenter & Sons

Ready to improve your home or business comfort? Our install and upgrade service is perfect for anyone needing a new heating or cooling system — whether you're building new, replacing an old unit, or upgrading to energy-efficient equipment. We work with both residential and commercial properties throughout Fairfield County.What does the process look like? It starts with a free consultation and load calculation to determine the right size and type of system for your space. Then our certified techn...

Is your heating system blowing cold air? Is your AC making strange noises? Or maybe your thermostat is unresponsive. Don’t sweat it — our repair service is fast, reliable, and affordable for homeowners and businesses in Fairfield County. We diagnose and fix all common and not-so-common HVAC problems.We service furnaces, heat pumps, air conditioners, boilers, and thermostats. Common issues we resolve include lack of heat or cooling, short cycling, strange odors, water leaks, electrical problems,...

The best way to avoid expensive breakdowns and keep your HVAC system running smoothly is regular maintenance. Our maintenance service is designed for homeowners and business owners in Fairfield County who want to protect their investment, improve energy efficiency, and ensure reliable comfort year-round.We recommend two tune-ups per year: one in the spring for your air conditioner, and one in the autumn for your heating system. Each visit includes a comprehensive checklist: cleaning coils and bl...

Harry P Carpenter & Sons has been providing full-service heating, cooling, and indoor air comfort across Fairfield County for more than 45 years. We started as a small family sheet metal shop in Stamford, and that same hands-on approach still guides every job. Whether you need a repair, a new system, or ongoing maintenance, you can expect on-time arrivals, clear communication, and no hard sell. We work on both homes and businesses, and we take the time to understand your comfort needs and budget...

When your furnace, heat pump, or boiler stops keeping up, we find the cause and fix it properly. Common problems we handle include no heat, short cycling, strange odors, water leaks, electrical faults, and weak airflow. We start with a thorough inspection, explain what we found, and give you a clear estimate before any work begins. With your approval, we install quality replacement parts and test the system to confirm it runs safely. If a repair is not worth the money, we will tell you that hone...

A properly sized and installed air conditioner makes a real difference in comfort and energy bills. Our installation process begins with a consultation and load calculation so the system matches your space. Our certified technicians handle everything from removing the old unit to configuring the new one for efficient operation. We use well-known brands, follow safety codes, and test the system before we leave. After the install, we walk you through how everything works and answer your questions....

Regular furnace maintenance helps prevent unexpected breakdowns and keeps your heating running efficiently. Our autumn tune-up covers cleaning, inspecting electrical connections, lubricating moving parts, checking safety controls, and replacing or cleaning filters. Our technicians also look for early signs of wear so small fixes can be handled before they grow into larger repairs. Maintenance customers receive priority scheduling and a discount on any repairs we perform. Scheduling service befor...

Good ductwork is essential for even heating and cooling, and our Stamford sheet metal shop builds custom ducts to fit your specific layout. Because we fabricate in-house, components can be shaped to the space rather than forced into standard sizes. We handle both new installations and replacements for homes and commercial buildings. Each job is planned with airflow and fit in mind so your system delivers comfort to every room. If your current ducts are leaking, undersized, or poorly routed, we c...

We serve commercial properties throughout Fairfield County, from small offices to larger buildings that need dependable heating and cooling. Our team understands that business spaces depend on consistent conditions, so we schedule work with minimal disruption to your operations. Services include system installation, repairs, ductwork, and maintenance planned around your needs. We take a clear, upfront approach to every project, explaining options and costs before starting. If your building needs...

A spring tune-up prepares your air conditioner for the hot months and helps it run efficiently all season. During a visit, we clean the coils and blower, check refrigerant levels, inspect electrical connections, test thermostat calibration, and change or clean the filter. We also look for early wear that could lead to a breakdown in July. Regular tune-ups can lower energy use and extend the life of your equipment. Maintenance customers receive priority scheduling and discounts on repairs. Call u...

If your heating system is old, unreliable, or costing too much to run, an upgrade may be the right move. We start with a consultation and load calculation to determine the equipment that fits your home or building. Our technicians handle removal of the old system, installation of the new one, and careful setup for efficient performance. Newer, energy-efficient equipment can reduce utility bills and lower the chance of sudden breakdowns. We test everything before we leave and walk you through how...