Local support, trusted service, and reliable results.
When your heating or cooling system stops doing its job, your home can become uncomfortable fast. Great Bison Heating & Cooling is here for homeowners who need residential HVAC care they can feel good about calling. As your local HVAC contractor in Gasport NY, we take the time to understand the issue, review the next steps, and help restore comfort to your home.
Our customers have a lot to say, and we're thankful for it. As of June 2026, we have a 5-out-of-5-star rating on Google with over 460 reviews from people in the area. Read their feedback to see what makes our team different.
A dependable furnace installation starts with understanding your home’s heating needs. We install new furnaces, replace old or failing systems, handle gas furnace setups, recommend high-efficiency options, remove outdated equipment, connect thermostats, and help with urgent replacement needs when your current furnace is no longer doing its job.
If your home feels cold and your furnace is not doing its job, our repair team is ready to take a closer look. We troubleshoot pilot lights, blower motors, thermostats, strange noises, and other heating concerns. After finding the source of the issue, we repair what needs attention and check the system for safe operation.
Boiler installation should begin with a system that fits your home’s heating demand. We handle new units, replacements, and high-efficiency systems after completing load calculations. Our team can also integrate radiant heating, remove old equipment, perform a full startup test, and help with emergency boiler swaps when replacement cannot wait.
Summer can arrive quickly, so our AC installation service helps homeowners get prepared before the heat becomes a problem. We handle central air setups, replacement systems, and energy-efficient units sized for the home, including thermostat installation and removal of the old cooling equipment.
If your AC can't keep up with the heat, your home can become uncomfortable in a hurry. Our AC repair services address cooling issues, refrigerant leaks, frozen coils, compressor problems, capacitor failures, thermostat concerns, airflow restrictions, and unexpected breakdowns to help bring cooler air back into your living space.
Seasonal air conditioning maintenance helps your home stay ready before summer heat becomes a daily concern. We clean coils, inspect the system, replace filters, check refrigerant levels, test electrical parts, calibrate thermostats, and review cooling performance to help reduce surprise issues later.
For houses without existing ductwork, ductless HVAC installation offers a practical way to bring heating and cooling to the rooms that matter most. We set up quiet single-zone and multi-zone systems that allow individual room control and can use less energy than many older home comfort setups.
Our mini-split installation service gives homeowners zoned comfort without relying on a full duct system. We install wall-mounted units in additions, converted spaces, and rooms that need better control, then size and commission the system so it runs efficiently once installed.
Poor duct performance can leave your HVAC system working harder while your home still feels uneven. We provide ductwork services that include new duct installation, duct repair, damaged section replacement, leak sealing, airflow balancing, remodel duct modifications, and help with improving comfort in rooms with hot or cold spots.
Hot water matters for showers, laundry, dishes, and everyday home comfort. Our water heater installation service helps you choose the right system for your household. We install gas and electric units, review proper sizing, offer energy-efficient choices, and haul away the old tank after installation.
If your water heater is not producing enough hot water, our repair and maintenance service helps get to the source of the problem. We service gas and electric units, address leaks, heating element trouble, thermostat issues, and sediment buildup, and perform tank flushing to help the system operate properly.
Heat pumps work hard through changing seasons, providing warmth in cold months and cooling when temperatures rise. Our heat pump services include installation, replacement, repair, and maintenance, along with thermostat and control upgrades to help your system operate efficiently all year long.
In Gasport, NY, weak furnace airflow can be caused by dirty filters, blower issues, blocked returns, duct restrictions, or a system that needs professional cleaning and adjustment.
In Gasport, NY, boiler repair may be needed if radiators stay cold, pressure drops, water leaks appear, or the system takes too long to heat.
In Gasport, NY, an AC that runs without cooling well may have low airflow, dirty coils, refrigerant trouble, thermostat problems, or duct leakage.
In Gasport, NY, Great Bison Heating & Cooling can install a mini-split to condition a new room addition without relying on existing ductwork.
In Gasport, NY, HVAC maintenance should include filters, coils, burners, safety switches, drains, blower operation, thermostat function, and overall system performance.

A reliable furnace helps keep your home comfortable through winter, especially when temperatures drop without warning. Our furnace service covers new installations, replacement systems, and upgrades, including gas and high-efficiency models sized for the home. We remove old equipment, connect thermostats, and respond to emergency replacement needs when the cold sets in.
Sometimes a furnace just needs the right repair instead of a full replacement. Our heating team checks no-heat problems, ignition concerns, pilot light failures, blower motor trouble, unusual noises, and suspicious odors that may signal a deeper issue. After tracking the problem to its source, we test for safety and performance, and we are available for emergency furnace repairs when your home suddenly loses heat. For hot-water heating, boiler sizing is an important part of long-term comfort and efficiency. We install and replace residential boilers, including high-efficiency systems, and run proper load calculations before installation.
In Gasport, NY, Gasport Rd blends canal-area character, established residences, and small-community appeal. Great Bison Heating & Cooling is an HVAC contractor offering furnace installation that helps homeowners replace aging equipment, improve energy efficiency, and keep indoor spaces warm when temperatures fall.
In Gasport, NY, Orangeport provides a quiet rural-residential setting with a strong local feel. Great Bison Heating & Cooling provides furnace installation for homeowners looking to improve heating reliability, reduce cold spots, and enjoy dependable comfort through Western New York winters.
In Gasport, NY, East Ave offers larger lots, country homes, and access to the surrounding Town of Royalton. Great Bison Heating & Cooling offers furnace installation that supports efficient operation, balanced warmth, and lasting comfort for homes with varied layouts.
Comfort at home should not depend on the forecast, and our crew is ready to make that happen.