Every home's heating and cooling setup tells a different story, and Hyannis HVAC Company is here to read yours. Whether you own a Cape Cod bungalow, manage a rental portfolio, or run a commercial property in Barnstable County, heating and cooling problems land the same way: something stops working, and you need someone who knows what they are looking at. From a quick repair call to a full system replacement, residential and commercial HVAC work is handled through one number. Simple booking. Clear pricing. Plain talk about the system.
Comfort problems don't wait, and neither do we, whether the issue is a central air system that quit in July or a heating system that stopped responding on a January night. We take repair calls from homeowners, landlords, property managers, and commercial clients across the area. You do not need to know what is wrong before you call. Describe what the system is doing, and we will scope the job from there.
The most common AC complaints we hear: the system runs but blows warm air, the unit freezes up and shuts down, it cycles on and off every few minutes, or it will not start at all. Each of those symptoms points in a different direction. A frozen coil often traces back to a refrigerant issue or a restricted airflow path. Short cycling can mean an oversized unit, a failing compressor, or a control fault. The diagnostic visit covers the full system, not just the part that looks wrong.
We are honest about when a system still has life in it. If the compressor is sound and the refrigerant charge is the only issue, we say so. If the repair cost is pushing against what a replacement would run, we lay out both numbers and let you decide.
A furnace that will not turn on, blows cold air, or keeps shutting itself off mid-cycle is worth a call as soon as it happens. Common causes include a failed igniter, a tripped limit switch, a dirty flame sensor, or a blower motor that is not moving air the way it should. We run through the full diagnostic before quoting parts.
We take last-minute comfort calls seriously. If you are dealing with no heat in the home, reach out during our hours, 7:30 AM to 8:30 PM every day, and we will work to get someone out.
Heat pumps earn their keep in both seasons, which also means they can fail in both directions. A heat pump that will not heat in winter is sometimes a defrost-cycle fault or a refrigerant charge problem. One that will not cool in summer may have a reversing valve that is stuck in heating mode. The diagnostic looks at refrigerant pressure, the reversing valve, defrost controls, and the full electrical circuit on the unit before anything is quoted. Heat pump repair makes sense when the core components are sound. When the system is aging and the repair cost is significant, we will walk you through what replacement looks like.
Most homeowners can't tell a minor HVAC issue from a serious one, and the same goes for replacement quotes. When a contractor tells you the system needs to go, a second opinion costs nothing but a phone call. Second opinions on replacement quotes are welcomed here. We look at the equipment, run the numbers, and tell you what we actually see.
When replacement is the right call, we handle full system installations for both residential and commercial properties. That covers central air installation, heating system replacement, and full HVAC system changeouts where both sides of the system are being updated. The price for a new system depends on the equipment, the scope of the installation, and what the existing setup requires. We confirm the quote before anything is scheduled, so you know what you are agreeing to. Reach out and we will talk through the symptoms.
Getting your comfort problem handled starts with a quick call. But not every call is a breakdown. A lot of the work we do is the kind that keeps a breakdown from happening in the first place.
A spring AC tune-up covers coil cleaning, refrigerant pressure check, airflow verification, and a look at the electrical connections on the unit. A fall furnace tune-up covers the heat exchanger, igniter, burner, and blower. Both visits include a filter check and a report on anything that looks like it could become a problem before the season ends. Catching a failing capacitor or a low refrigerant charge in April is a different conversation than catching it on the hottest day in August.
A thermostat that is not responding, reading the wrong temperature, or failing to communicate with the system is a straightforward replacement job. We install programmable and smart thermostats that work with your existing equipment, and we set them up so the scheduling and zoning features are actually useful rather than just technically available. A good thermostat upgrade can reduce how hard the system works without changing the equipment it runs.
Rooms that never quite cool down, uneven temperatures between floors, or a system that runs constantly without hitting the set point are often duct problems rather than equipment problems. Leaking duct joints waste conditioned air before it reaches the room. We inspect the duct system, seal leaks, and replace sections where the damage is past the point of sealing. Duct sealing is one of the more cost-effective improvements on a home with older ductwork.
Dust buildup on surfaces, persistent odors, or humidity complaints that follow the HVAC system are signs that filtration and air quality deserve attention. We install air filtration systems and air purifiers that work in line with the existing HVAC equipment. The right setup depends on what the home is experiencing, and we will walk you through your options.
Systems around here run into the same few faults, and a lot of that comes down to the housing stock and the climate. Barnstable County's coastal winters are cold and damp, and a large share of the homes on Cape Cod were built before central forced-air systems were standard. That shapes the kind of work we do most often.
Older Cape Cod homes frequently heat with oil-fired boilers connected to steam or hot-water radiators. These systems are durable but require specific knowledge to service correctly. A boiler that is not distributing heat evenly is often a zone valve or circulator pump issue rather than a problem with the boiler itself. We service and repair hydronic systems, including zone controls, expansion tanks, and pressure relief components, and we handle boiler replacement when the unit has reached the end of its service life.
Fuel oil prices in Barnstable County have pushed a lot of homeowners to look at alternatives, and Massachusetts electrification incentives have made heat-pump conversions more financially practical than they were a few years ago. An oil-to-heat-pump conversion replaces the oil-fired heating equipment with a cold-climate heat pump that handles both heating and cooling. For homes without existing ductwork, a ductless heat pump system is often the most practical path. We handle the equipment side of these conversions and can scope the job based on your current setup.
Many homes on the Cape have no existing ductwork, which makes a traditional central air system a major renovation. A ductless mini-split installs without ductwork: an outdoor unit connects to one or more indoor air handlers through a refrigerant line set run through a small wall penetration. Mini-splits handle both heating and cooling, which makes them a practical year-round solution for additions, seasonal cottages, and whole-home retrofits. We also service and repair existing mini-split systems when they are not heating or cooling the way they should. Call us and we'll walk you through your options.
Pricing for HVAC work depends on what the system needs, and the only way to give you an accurate number is to understand the job. Diagnostic visits carry a service-call cost, which we confirm on the phone before anything is scheduled. Replacement and installation quotes are scoped based on the equipment and the specifics of the installation. One number. One call. One HVAC tech at your door.
Ask what the quote covers and you will get a straight answer. We do not quote a number and then add to it after the visit. The price is confirmed before the work is scheduled, and if the scope changes once the technician is on site, we talk through it before anything moves forward. We'll get your home comfortable again fast.
We serve Hyannis and the surrounding towns across the Cape. If you are in Barnstable County and your heating or cooling system needs attention, we cover your area.
Towns we serve include:
Whether the property is a year-round home, a seasonal cottage, or a commercial building, the work is the same: figure out what the system needs and get it handled.
No heat in the home, no cooling during an extreme heat stretch, and a system that has shut down completely and will not restart all qualify as emergency calls. We take urgent calls every day from 7:30 AM to 8:30 PM.
Call (774) 822-6289, describe the situation, and we will work to get someone out as quickly as the schedule allows.
A boiler service visit covers the burner and heat exchanger, pressure and temperature relief valve, circulator pump, zone valves, and the expansion tank. If the system is not distributing heat evenly, the visit includes checking individual zone controls and looking for air trapped in the lines. Boiler pressure readings are checked and recorded, and any faults found are explained before repair work is quoted.
The process starts with sizing the replacement equipment correctly for the home's actual heat load, which is based on the square footage, insulation level, and window area rather than the size of the old oil system. The oil-fired equipment is removed and the heat pump is installed in its place. For homes without existing ductwork, a ductless heat pump system is often the most practical path, and we scope that option on the call if it applies.
A mini-split installation connects an outdoor unit to one or more indoor air handlers through a refrigerant line set that runs through a small wall penetration. No ductwork is required, which makes it a practical option for Cape Cod homes that were built without central air. The installation includes mounting the indoor and outdoor units, running the line set, and testing the system in both heating and cooling modes before the job is complete.
A clogged filter restricts airflow across the evaporator coil, which causes the system to work harder and can lead to the coil freezing up. Dirty ductwork reduces the volume of conditioned air that reaches each room, which shows up as uneven temperatures and longer run times. Both problems are worth catching at a maintenance visit rather than after a breakdown.
Signs of leaking ducts include rooms that never quite reach the set temperature, uneven heating or cooling between floors, and a system that runs constantly without satisfying the thermostat. A duct inspection involves pressurizing the system and identifying where air is escaping. Sealing those points brings the system back to delivering conditioned air where it is supposed to go rather than losing it in unconditioned spaces.
A system that runs almost continuously without reaching the set temperature, one that cycles on and off every few minutes, or one that heats or cools some rooms and not others is worth a diagnostic visit. Rising energy bills without a change in usage patterns are another signal. These symptoms can point to equipment that is aging past its useful life or to a system that was never sized correctly for the space.
A failing system works harder and runs longer to produce the same result, which shows up directly in energy consumption. A refrigerant leak, a dirty coil, a failing motor, or a heat exchanger operating below capacity all reduce efficiency without shutting the system down. The system keeps running, but it is moving less heat or cooling per unit of energy than it should.
The outdoor unit inspection covers refrigerant pressure, coil condition and cleanliness, fan motor operation, electrical connections on the unit itself, and the condition of the cabinet and base. On a heat pump, the defrost controls and the reversing valve are also checked. A dirty condenser coil is one of the most common causes of reduced cooling capacity and is cleaned as part of a standard maintenance visit.
Once the repair or installation is complete, the system is run through both heating and cooling modes where applicable. Airflow is checked at the supply registers, thermostat response is verified, and refrigerant pressure is confirmed to be within the correct range. Any readings or findings from the visit are explained before the technician leaves the property.
A spring tune-up covers coil cleaning, refrigerant pressure check, airflow verification, and a review of the electrical connections on the unit. A fall tune-up covers the heat exchanger, igniter, burner, and blower on a furnace, or the defrost controls and refrigerant charge on a heat pump. On the Cape, the shoulder seasons are long enough that a system can move between heating and cooling cycles in the same month, and a tune-up in both seasons keeps the equipment ready for that.
The comparison that matters is the cost of the repair against the remaining useful life of the system. A repair that runs to more than half the cost of a comparable new system, on equipment that is already past its typical service life, is a situation where replacement is worth considering. We lay out both numbers and let you decide, and we are honest when the repair is the better value.
Replacing a filter or resetting a tripped breaker on the unit is reasonable for a homeowner to handle. Beyond that, furnace and heat pump work involves refrigerant handling, gas connections at the equipment, and electrical components on the unit that carry real risk if approached without the right knowledge. If the system is not responding after a filter change and a thermostat check, a call is the right next step.
Yes, for most repair work the power to the unit is shut off at the disconnect or the unit's service switch before any components are accessed. The technician handles this as part of the standard process. If the work requires coordinating with the electrical disconnect that serves the unit, that is confirmed on the call before the visit.
When the heat goes out or the AC stops keeping up, the next step is a phone call. Hyannis HVAC Company takes heating and cooling calls every day from 7:30 AM to 8:30 PM. We cover repairs, installations, seasonal maintenance, and the specialized work this area's older housing stock calls for. Simple booking. Clear pricing. Plain talk about the system.
Call (774) 822-6289 for a quote.
Every heating and cooling job on Cape Cod starts with the same question: what does this system actually need? We cover the full range of HVAC work across Hyannis and Barnstable County, from a single repair call to a full system changeout, and we confirm the price before anything is scheduled. The table below lays out what each service covers and who it fits best.
| Service Type | What's Included | When You Need It | What to Keep in Mind |
|---|---|---|---|
| Oil-to-Heat-Pump Conversion | Heat load calculation for the home, Oil equipment removal, Cold-climate heat pump installation, Ductless option scoping for homes without ducts | Barnstable County homeowners looking to move off fuel oil and take advantage of Massachusetts electrification incentives | Sizing the replacement equipment correctly matters more than the equipment brand. We base sizing on the home's actual heat load, not the capacity of the old oil system. |
| Full System Installation & ReplacementMost Popular | Equipment sizing for the space, Removal of existing system, Installation and startup, Thermostat integration and testing | Homeowners whose system has aged past the point where repair makes financial sense, or properties being upgraded from older equipment | We welcome second opinions on replacement quotes. We look at the equipment and run the numbers before any work is scheduled. |
| Emergency HVAC Service | Urgent repair calls handled as quickly as the schedule allows, No-heat and no-cool response, System-down diagnostic, Priority scheduling within available hours | Anyone with no heat in winter, no cooling during an extreme heat stretch, or a system that has shut down and will not restart | We take urgent calls every day from 7:30 AM to 8:30 PM. Describe the situation when you call and we will work to get someone out as quickly as the schedule allows. |
| Heating & Furnace Repair | Igniter and flame sensor check, Heat exchanger inspection, Blower motor assessment, Limit switch and control board review | Anyone with a furnace that will not start, blows cold air, or shuts itself off mid-cycle | A tripped limit switch is one of the most common no-heat calls and is often a symptom of an airflow problem rather than a failed part. |
| Ductless Mini-Split Installation | Outdoor and indoor unit mounting, Refrigerant line set installation, Heating and cooling mode startup testing, Multi-zone configuration where applicable | Cape Cod homes without existing ductwork, additions, seasonal cottages, and whole-home retrofits where running ducts is not practical | A mini-split handles both heating and cooling through a small wall penetration. No ductwork renovation is required, which keeps the installation scope manageable. |
| Indoor Air Quality & Air Filtration | Air filtration system installation, Air purifier integration with existing HVAC, Humidity and odor assessment, Filter media selection for the space | Households dealing with dust buildup, persistent odors, or humidity complaints that follow the HVAC system | The right filtration setup depends on what the home is actually experiencing. We walk through the options before anything is installed. |
| Heat Pump Repair & Service | Reversing valve and defrost control check, Refrigerant pressure reading, Heating and cooling mode testing, Electrical circuit inspection on the unit | Homes relying on a heat pump year-round that lose heating in winter or cooling in summer | A heat pump stuck in one mode often has a reversing valve fault rather than a compressor problem. The diagnostic distinguishes between the two. |
| Ductwork Repair & Sealing | Duct system inspection and pressurization, Leak identification and sealing, Damaged section replacement, Airflow verification after sealing | Homes with uneven temperatures between rooms, a system that runs constantly, or rising energy bills without a change in usage | Leaking duct joints waste conditioned air in unconditioned spaces. Sealing them is one of the more cost-effective improvements on a home with older ductwork. |
| Boiler & Hydronic Heating Service | Zone valve and circulator pump inspection, Pressure and temperature relief valve check, Expansion tank assessment, Heat distribution troubleshooting | Older Cape Cod homes that heat with oil-fired or gas boilers connected to radiators or radiant systems | Uneven heat distribution in a hydronic system is often a zone valve or circulator issue rather than a boiler fault. The diagnostic checks both before quoting repairs. |
| Thermostat Installation & Smart Controls | Programmable and smart thermostat installation, Compatibility check with existing equipment, Scheduling and zoning setup, System communication verification | Homeowners with a thermostat that misreads temperature, fails to respond, or cannot communicate with the system | A smart thermostat that is not configured properly offers little benefit. Setup includes making the scheduling and zoning features actually usable. |
| Seasonal Maintenance & Tune-Ups | Coil cleaning and refrigerant pressure check, Burner, igniter, and heat exchanger review, Electrical connection inspection, Filter check and system report | Homeowners who want to catch a failing component before it becomes a breakdown call in peak season | On Cape Cod, the shoulder seasons are long enough that a system can shift between heating and cooling in the same month. Tuning up in both seasons keeps it ready. |
| AC Repair & Service | Diagnostic visit for cooling faults, Refrigerant pressure check, Electrical and control inspection, Coil and airflow assessment | Homeowners and landlords dealing with a system that runs but will not cool, freezes up, or short-cycles | A frozen coil and warm air from the vents often trace back to two different causes. The diagnostic covers both before any repair is quoted. |
How often should I schedule a maintenance tune-up for my HVAC system?
A tune-up once per season is the practical standard: spring for the cooling system before the warm months, and fall for the heating system before temperatures drop. On Cape Cod, where the shoulder seasons are long and a system can cycle between heating and cooling in the same week, keeping both sides of the equipment serviced means you are not caught with a problem in the middle of a weather shift.
What does it mean when my system short-cycles, and should I be concerned?
Short-cycling means the system turns on, runs for a minute or two, shuts off, and repeats the pattern without satisfying the thermostat. The causes vary: an oversized system relative to the space, a failing compressor, a refrigerant charge that is off, or a control fault. It is worth a diagnostic call because short-cycling puts wear on the compressor and the electrical components faster than normal operation does.
What are the signs that a compressor or blower motor is starting to fail?
A compressor that is struggling often shows up as reduced cooling capacity even when the system runs continuously, or as a hard-start condition where the unit hesitates before coming on. A failing blower motor may produce reduced airflow at the registers, unusual noise from the air handler, or a system that trips the limit switch repeatedly. Both are worth catching at a diagnostic visit before the component fails completely.
System Checked Before Parts Are Quoted
We run a full diagnostic before recommending any repair. The quote reflects what the system actually needs, not what the first visible fault suggests.
How do ductwork leaks raise my energy bills?
Conditioned air that escapes through leaking duct joints before it reaches the living space is air the system had to produce but the home never benefited from. The system compensates by running longer cycles to hit the set temperature, which increases energy consumption without improving comfort. Rooms at the end of long duct runs are usually the first to show the effect, since they receive the least of what is left after the leaks take their share.
Why is one room in my home consistently hotter or colder than the rest?
Uneven temperatures between rooms usually trace back to one of three causes: a duct leak or restriction that reduces airflow to that zone, a system that was not sized correctly for the layout of the home, or a thermostat placement that does not reflect what is happening in the problem room. A diagnostic visit looks at airflow at the registers, duct condition, and system output before drawing a conclusion.
What do strange noises from the HVAC unit usually mean?
A banging or rattling sound often points to a loose component inside the air handler or a failing blower wheel. A grinding noise can indicate a motor bearing that is wearing out. A high-pitched squeal from the outdoor unit is sometimes a refrigerant pressure issue or a failing fan motor. None of these sounds resolve on their own, and running the system while the noise is present can turn a minor repair into a more significant one.
Older Systems and New Installs Both Covered
From oil-fired boilers in older Cape Cod homes to new cold-climate heat pump installations, we handle the full range of equipment this area's housing stock calls for.
How does a thermostat or smart-control upgrade actually change how the system performs?
A thermostat that reads the room temperature accurately and communicates reliably with the equipment lets the system run in shorter, more efficient cycles rather than overshooting and shutting off late. A smart thermostat adds scheduling so the system is not working at full output during hours when no one is home. The upgrade does not change the equipment, but it does change how hard the equipment has to work to maintain the set temperature.
How do I know whether my older system is worth repairing or should be replaced?
The comparison that matters is the cost of the repair against what a replacement would run, weighed against how much useful life the existing equipment has left. A repair that approaches or exceeds half the cost of a new system, on equipment that is already past its typical service life, is a situation where replacement is worth looking at seriously. We lay out both numbers and let you decide. We are honest when the repair is the better value.
Emergency No-Heat and No-Cool Calls Handled
Urgent calls are taken seriously every day from 7:30 AM to 8:30 PM. Describe the situation when you call and we work to get someone out as quickly as the schedule allows.
Do I need to be home when the technician comes out for a service call?
For most repair and maintenance visits, yes. The technician needs access to the equipment, which is typically inside the home as well as outside. If the work involves only the outdoor unit and you can arrange access to the area, that is worth discussing when you call to schedule. We confirm what access is needed when the visit is booked.
How does pricing work for an HVAC repair or installation?
Diagnostic visits carry a service-call cost, which we confirm on the phone before anything is scheduled. For repairs, the quote covers parts and labor and is given before any work begins. For installations and replacements, the quote is scoped based on the equipment and the specifics of the job. If the scope changes once the technician is on site, we talk through it before anything moves forward.
How long does a full system replacement typically take?
A straightforward residential replacement, where the existing equipment is removed and a new system of the same type is installed in the same location, is usually completed in a single day. A more involved job, such as an oil-to-heat-pump conversion or a ductless mini-split installation in a home without existing infrastructure, may run into a second day depending on the scope. We confirm the expected timeline when the job is quoted.
Call (774) 822-6289 to talk through your system, get a price, and get the work scheduled.
(774) 822-6289