Since 1977, HPC Mechanical has been the family-owned name Stamford homeowners and businesses trust for honest, expert HVAC solutions. We started in the field, running residential service routes and ma...
Since 1977, HPC Mechanical has been the family-owned name Stamford homeowners and businesses trust for honest, expert HVAC solutions. We started in the field, running residential service routes and managing commercial new-construction projects, learning what makes an HVAC company truly worth calling back. Today, we carry forward nearly five decades of experience wrapped in a modern operation: licensed technicians, transparent pricing, a dedicated commercial division, and the responsiveness today's property managers expect.Our penguin mascot, Chilly Willy, has been keeping Stamford cool since the original Harry P. Carpenter & Sons days. He's still on the job — and now he even writes a cus...
Professional solutions tailored to your specific needs — delivered with expertise and care.
01
Air Conditioning Installation & Repair
When the summer heat hits Stamford, you need an AC system that works hard and quietly. At HPC Mechanical, we handle everything from central air conditioning and ductless mini-splits to high-efficiency heat pumps. We size every system correctly — no guesswork — so it cools evenly, runs efficiently, and lasts for years.Our process starts with a thorough load calculation and a walkthrough of your home or business. We explain your options in plain English, then install cleanly and test every compone...
When the summer heat hits Stamford, you need an AC system that works hard and quietly. At HPC Mechanical, we handle everything from central air conditioning and ductless mini-splits to high-efficiency heat pumps. We size every system correctly — no guesswork — so it cools evenly, runs efficiently, and lasts for years.
Our process starts with a thorough load calculation and a walkthrough of your home or business. We explain your options in plain English, then install cleanly and test every component. If your existing system is struggling, we also offer fast, reliable repairs. From a single mini-split in a guest room to whole-home central air, we make sure your space stays comfortable without breaking the bank.
Why choose us? We've been serving Stamford since 1977, we're fully licensed and insured, and we never recommend a system you don't need. Plus, our maintenance plans keep your AC in top shape year after year. Call us for a free estimate and beat the heat with confidence.
02
Heating Services: Furnaces, Boilers & Heat Pumps
New England winters are no joke, and a broken furnace or boiler can turn your home or business into an icebox fast. HPC Mechanical provides expert heating services across Stamford, including furnace repair and replacement, boiler service, hydronic systems, and modern heat pumps. Whether you need emergency heat on the coldest night of the year or a full new-construction install, we respond fast and fix it right.Our technicians are trained on all major brands and fuel types — gas, oil, electric, a...
New England winters are no joke, and a broken furnace or boiler can turn your home or business into an icebox fast. HPC Mechanical provides expert heating services across Stamford, including furnace repair and replacement, boiler service, hydronic systems, and modern heat pumps. Whether you need emergency heat on the coldest night of the year or a full new-construction install, we respond fast and fix it right.
Our technicians are trained on all major brands and fuel types — gas, oil, electric, and propane. We start with a diagnostic to find the root cause, then give you an honest quote with no pressure. If repair isn't cost-effective, we'll walk you through replacement options that save you money on energy bills. For new builds, we handle everything from load calcs to equipment selection and ductwork detailing.
We're known across Stamford for showing up on time, keeping the work area clean, and explaining everything in plain language. With nearly 50 years in the family, we're not going anywhere — and we stand behind every heating job we do.
03
Commercial HVAC – Rooftop Units, VRF & Chillers
Commercial HVAC systems are a different beast — and HPC Mechanical has a dedicated team that knows how to handle them. We work with property managers, general contractors, and business owners across Stamford to install, repair, and maintain rooftop units, VRF systems, chillers, boilers, and make-up air units. From a single office retail space to a multi-tenant building, we have the experience to get the job done on time and on budget.Our commercial process is built for minimal disruption. We sta...
Commercial HVAC systems are a different beast — and HPC Mechanical has a dedicated team that knows how to handle them. We work with property managers, general contractors, and business owners across Stamford to install, repair, and maintain rooftop units, VRF systems, chillers, boilers, and make-up air units. From a single office retail space to a multi-tenant building, we have the experience to get the job done on time and on budget.
Our commercial process is built for minimal disruption. We stage equipment carefully, coordinate with your schedule, and communicate every step of the way. For replacement projects, we do a full site assessment, load calc, and equipment selection to ensure efficiency and longevity. And our maintenance plans keep your systems running at peak performance, avoiding costly downtime.
We've completed projects for restaurants, retail stores, offices, and multi-tenant buildings across Stamford. Our team is fully licensed, insured, and backed by a family-owned company that's been around since 1977. Get a free estimate for your commercial HVAC project today.
04
HVAC contractor in Stamford
HPC Mechanical has been a family-owned HVAC contractor serving Stamford since 1977. We handle the full range of heating, cooling and ventilation work for homes, historic estates and commercial buildings, from new-construction design and installation to ongoing service. Our technicians are licensed, we arrive on time, keep the work area clean and explain every option in plain language before we start. Whatever your building needs, we design it, install it and keep it running, and we are happy to...
HPC Mechanical has been a family-owned HVAC contractor serving Stamford since 1977. We handle the full range of heating, cooling and ventilation work for homes, historic estates and commercial buildings, from new-construction design and installation to ongoing service. Our technicians are licensed, we arrive on time, keep the work area clean and explain every option in plain language before we start. Whatever your building needs, we design it, install it and keep it running, and we are happy to talk through your project with you.
05
Heating repair
When your heat stops working, we aim to get it running again quickly and correctly. Our technicians diagnose the actual cause of the problem before recommending any fix, whether the system is gas, oil, electric or propane. You will receive an honest quote with no pressure, and if a repair no longer makes financial sense, we will lay out replacement options and what they could save you on energy. We work on all major furnace, boiler and heat pump brands and treat every job with the same care, lea...
When your heat stops working, we aim to get it running again quickly and correctly. Our technicians diagnose the actual cause of the problem before recommending any fix, whether the system is gas, oil, electric or propane. You will receive an honest quote with no pressure, and if a repair no longer makes financial sense, we will lay out replacement options and what they could save you on energy. We work on all major furnace, boiler and heat pump brands and treat every job with the same care, leaving the space as clean as we found it.
06
Air conditioning installation in Stamford
A well-sized air conditioner keeps a home or business cool without wasting energy, so our installs start with a thorough load calculation and a walkthrough of the space. We install central air conditioning, ductless mini-splits and high-efficiency heat pumps, and we explain your choices plainly so you know why each recommendation fits. Installations are done cleanly, and every component is tested before we leave. We also offer maintenance plans to keep your system performing well over the years,...
A well-sized air conditioner keeps a home or business cool without wasting energy, so our installs start with a thorough load calculation and a walkthrough of the space. We install central air conditioning, ductless mini-splits and high-efficiency heat pumps, and we explain your choices plainly so you know why each recommendation fits. Installations are done cleanly, and every component is tested before we leave. We also offer maintenance plans to keep your system performing well over the years, and we will give you a free estimate to start the conversation.
07
Commercial HVAC services in Stamford
Our commercial division works with property managers, general contractors and business owners on rooftop units, VRF systems, chillers, boilers and make-up air units. We have completed work for restaurants, retail stores, offices and multi-tenant buildings, and we plan each job around your schedule to limit disruption. Replacement projects begin with a full site assessment, load calculation and equipment selection. Our maintenance plans help avoid costly downtime. Our team is licensed and insured...
Our commercial division works with property managers, general contractors and business owners on rooftop units, VRF systems, chillers, boilers and make-up air units. We have completed work for restaurants, retail stores, offices and multi-tenant buildings, and we plan each job around your schedule to limit disruption. Replacement projects begin with a full site assessment, load calculation and equipment selection. Our maintenance plans help avoid costly downtime. Our team is licensed and insured, and we are glad to provide a free estimate for your project.
08
Furnace replacement in Stamford
If your furnace is old, unreliable or costing more to run each winter, replacement may be the better path. We begin with a diagnostic and an honest look at whether repair still makes sense. If it does not, we size and select a new unit for your home, install it along with any needed ductwork changes, and test it before we leave. We work with gas, oil, electric and propane systems and aim to give you options that lower your energy bills. Expect clear explanations and a fair quote with no upsells.
09
Ductless mini-split installation in Stamford
Ductless mini-splits are a practical choice for a single room, an addition or a space where ductwork is impractical. We size each unit to the room, mount the indoor head and run the line set cleanly, then test heating and cooling performance before we finish. Systems can serve one zone or several, and we will explain which setup suits your layout and budget. Our installers are licensed and insured, and we leave the work area tidy. Call us for a free estimate if you are considering a mini-split f...
Ductless mini-splits are a practical choice for a single room, an addition or a space where ductwork is impractical. We size each unit to the room, mount the indoor head and run the line set cleanly, then test heating and cooling performance before we finish. Systems can serve one zone or several, and we will explain which setup suits your layout and budget. Our installers are licensed and insured, and we leave the work area tidy. Call us for a free estimate if you are considering a mini-split for your home or business.
10
Emergency AC repair
A failed air conditioner during a Stamford heat wave is urgent, and we treat it that way. Our technicians work to restore cooling quickly, starting with a diagnostic to find the root cause so the repair lasts. We are fully licensed and insured, and we give you an honest quote before any work begins, with no pressure to replace a system you do not need. If the unit is beyond repair, we will walk you through replacement options so you can decide with clear information.
11
Boiler service in Stamford
Regular boiler service keeps your system safe, efficient and ready for the cold months. Our technicians inspect and clean the unit, check controls and combustion, and look for early signs of wear before they turn into breakdowns. We service hydronic and steam systems across residential and commercial properties and work with all major fuel types. You will get a clear summary of what we found and what, if anything, needs attention. We also offer maintenance plans for ongoing care, and we are happ...
Regular boiler service keeps your system safe, efficient and ready for the cold months. Our technicians inspect and clean the unit, check controls and combustion, and look for early signs of wear before they turn into breakdowns. We service hydronic and steam systems across residential and commercial properties and work with all major fuel types. You will get a clear summary of what we found and what, if anything, needs attention. We also offer maintenance plans for ongoing care, and we are happy to schedule a visit at a time that suits you.
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Since 1977, HPC Mechanical has been the family-owned name Stamford homeowners and businesses trust for honest, expert HVAC solutions. We started in the field, running residential service routes and managing commercial new-construction projects, learning what makes an HVAC company truly worth calling back. Today, we carry forward nearly five decades of experience wrapped in a modern operation: licensed technicians, transparent pricing, a dedicated commercial division, and the responsiveness today's property managers expect.
Our penguin mascot, Chilly Willy, has been keeping Stamford cool since the original Harry P. Carpenter & Sons days. He's still on the job — and now he even writes a customer tips blog. But beyond the mascot, we're real tradespeople who show up on time, clean up after ourselves, and give you a fair price with no upsells. Whether it's a historic Greenwich estate needing quiet, efficient heat or a retail building with a failing rooftop unit, we design, install, and service it all. We're built for what's next — but our roots go back nearly five decades.
