AC & Furnace Repair in Longmont, CO, Main Street to Union Reservoir

Which HVAC company serves homes in Longmont, CO?

For Longmont homeowners, Impact HVAC repairs and installs air conditioners, furnaces, heat pumps, and ductless systems, and our team handles plumbing and electrical work too. Ring (720) 773-5865 or send request service online and we will get a technician headed to your Longmont property.

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AC Repair and Installation

If your air conditioner trips the breaker, runs without cooling, or is leaking, we check the capacitor, contactor, fan motors, coil, refrigerant circuit, and drain line before deciding on a fix. When replacement makes sense, we size the new system for the house and walk through the options with you.

If your home sits near Union Reservoir with open sky and sun on the west side, tell us which rooms heat up in late afternoon. We plan a new air conditioner around those rooms.

Furnace Repair and Replacement

A furnace that will not light, short cycles, or cools off in the middle of the night needs a technician to check ignition, flame sensing, gas supply, the blower, and venting. Our furnace team repairs most faults and installs new furnaces when the old one has reached the end of its life.

For a house in the Downtown Longmont Historic District area, heating equipment often has to work with older construction and tighter spaces. We look at venting paths and clearances before suggesting a replacement.

Heat Pump Installation and Repair

Heat pumps provide heating and cooling from the same outdoor equipment, and they need accurate sizing and good airflow. Weak or noisy units get diagnosed and repaired, and new ducted or ductless systems are installed once the ducts and service panel check out.

For a home near Sandstone Ranch, we measure the existing ductwork and panel rather than assume, then put the options in writing. That gives you a clear plan before any equipment is ordered.

Ductless Mini-Split Systems

A wall-mounted indoor head can heat and cool one room or zone by itself. It fits additions, finished basements, garage conversions, and spaces where a duct run would be disruptive. Our ductless mini-split team sizes the indoor units, mounts the condenser, and commissions the system.

If you live in a Prospect New Town home with a room over the garage or a detached studio, a ductless head can serve that space on its own. The right placement depends on the walls and the route to the outdoor unit.

HVAC Maintenance Plans

A seasonal tune-up means cleaning, safety testing, airflow readings, and a review of parts that wear first. Our Preferred Partner Program puts those tune-ups on a recurring calendar.

If your family spends weekends at Roosevelt Park or along the St. Vrain Greenway, a planned weekday visit leaves your weekends free. Tell us what days suit you and we will fit the schedule around them.

Water Heater Repair and Replacement

Water that runs cold quickly, a tank that rumbles or leaks, or a pilot that will not stay lit are common reasons to call. We repair tank and tankless water heaters and replace them when repair does not hold.

A Longmont basement utility room can be tight, so we check clearances and venting before choosing a unit. If you are not sure about the age of your heater, we can read the label and tell you what it means.

Plumbing Repair

Leaks, clogs, worn fixtures, and aging supply lines are handled by our plumbing crew, with the cost quoted up front. We also help when a remodel requires moving or replacing plumbing.

For an older home near Golden Ponds or the Longmont Museum, where original and replacement pipe often coexist, we look past the single fixture you called about. We point out fittings that look worn so you can plan ahead.

Electrical Repair and Panel Upgrades

Our electrical technicians troubleshoot tripping breakers, dead outlets, flickering lights, and overloaded panels, and upgrade electrical service for new equipment such as heat pumps and EV chargers.

If you are adding a ductless system or heat pump along Hover Street or in a newer neighborhood, we check panel capacity first. That keeps the project from stalling when the equipment arrives.

Why Longmont Homeowners Choose Impact HVAC

Longmont homeowners can reach us by phone and talk to people who know the Front Range. Our crews travel up from Thornton for heating, cooling, plumbing, and electrical jobs. Impact has also grown by acquiring High Efficiency Heating and Air Conditioning and Great Peaks Heating and Air.

You hear what the technician found, see repair and replacement side by side, and decide. Our team page puts faces to the names before a visit.

Longmont HVAC FAQ

What should a Longmont HVAC service call include?

A good service call includes a diagnosis of the problem, an explanation in plain language, and a written option for repair or replacement. We show you what we found and let you choose.

Why is my Longmont furnace blowing lukewarm air?

Lukewarm air can come from a dirty flame sensor, a failing igniter, restricted airflow, or a furnace short cycling on its limit switch. Check the filter, then call us if the symptom continues.

Is it better to repair or replace an AC in Longmont?

A single failed part on an otherwise healthy system is usually worth repairing. Repeated failures, a very old system, or a major component like the compressor may point to replacement. We give you both options.

Can a ductless system cool a room over my Longmont garage?

Often yes. The indoor head serves that room on its own, linked to a condenser outside. We check the wall space and the route before recommending a system.

Do you service both HVAC and plumbing in Longmont?

Yes. Our HVAC technicians, plumbers, and electricians cover heating, cooling, water heaters, plumbing repairs, and electrical work.

Schedule HVAC Service in Longmont

For AC or furnace repair, a new installation, or an inspection, Impact HVAC can send a technician to Longmont. Whichever service you need, (720) 773-5865 or request service online gets you on the schedule.