Heating and cooling trouble rarely waits for a convenient day. We handle repairs, replacements, and tune-ups for Longmont homes, with a clear price before any work begins.
From a condenser that hums but won't start to a furnace short-cycling on a cracked flame sensor, HVAC problems demand a prompt professional response. Longmont HVAC provides Longmont homes with expert repair and installation designed to restore comfort fast and keep it steady.
We provide every HVAC service your home needs, backed by transparent pricing and thorough, root-cause repairs.
New air conditioners sized by load calculation and commissioned properly.
Heating and cooling repairs on every major brand, most finished in one visit.
Efficient heat pump installs that heat in winter and cool in summer.
Targeted comfort for additions, garages, and rooms the ducts never reached.
Honest repair-or-replace advice, and clean changeouts when it's time.
Source-removal duct cleaning, not a quick vacuum and a coupon.
Furnace replacements matched to your home, not the biggest unit on the truck.
Same-day air conditioner repairs with an upfront price before work starts.
Complete heating and cooling systems designed around your home's actual load.
Spring and fall maintenance that keeps efficiency up and breakdowns down.
Gas and electric furnace repairs with combustion and safety checks included.
Heat pumps, furnaces, and boilers brought back to steady, even heat.
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Call Longmont HVAC for fast, reliable residential HVAC service in Longmont.
Call (970) 602-4958 Now
Most homeowners only think about their HVAC system when it stops working, and by then the house is already too hot or too cold. Longmont HVAC works differently. We get there quickly, identify the failed part, explain what we found in plain language, and make the repair with the right parts on the truck.
Whether you're dealing with a condenser that keeps tripping the breaker, a heat pump stuck in defrost, or a mini-split flashing error codes, our seasoned technicians have the know-how and parts to handle just about any household HVAC challenge.
No homeowner likes surprises on the final bill. So Longmont HVAC prices every Longmont job before the work begins, after a complete diagnostic that looks at the equipment's age, fuel type, and tonnage, refrigerant levels, coil and heat exchanger condition, and the ductwork feeding each room. You'll know the problem, what the fix involves, and exactly what it will cost before you say yes.
The problem with HVAC failures is that most of them develop where you can't see them. A pinhole leak in the evaporator coil slowly drains refrigerant, the blower bearings wear down a little at a time, and a weak capacitor lasts right up until the first hot afternoon, when the compressor won't start. When bills climb, airflow drops, or ice forms on the lines, have the system checked before a repair turns into a replacement.
How old is your system? Once an air conditioner or furnace passes the 12-year mark, it's worth planning the next one before the current one decides for you. Emergency replacements happen on the worst days, in heat waves and cold snaps, when options are few and everyone is uncomfortable. Our team knows how the Longmont climate wears on equipment and will tell you plainly whether yours has years left or is running on borrowed time.
The best repair is the one you never need. That's the whole point of our maintenance plans. Twice a year, we clean coils and burners, check the refrigerant charge, test the electrical components, inspect the heat exchanger, flush the condensate drain, and change the filter, all matched to the equipment in your home.
Many homes do best with two visits a year: a springtime tune-up for cooling and a fall tune-up for heating. We adjust the schedule to the age of your equipment, how hard your household works it, and local conditions such as dust and pollen, which coat condenser coils and push up energy use fast.
Consider maintenance as protection for equipment you've already bought. Each tune-up keeps the coils clean, the charge correct, and the filter fresh, which lowers what you pay to run the system while easing the strain on the compressor and blower. For most households, the plan costs far less than an early replacement.
An undersized system runs nonstop and never catches up on the hottest days, while an oversized one short-cycles, wastes energy, and leaves the house humid. Longmont HVAC sizes every replacement and new installation to your actual home. That means a proper load calculation that accounts for square footage, insulation, window exposure, and duct layout, rather than simply matching the tonnage of the old unit. For ductless mini-splits, it means matching head capacity to each zone so every room holds its setpoint.
Choosing new equipment is about more than efficiency ratings. Our technician will compare heat pumps against a furnace-and-AC pair, and ducted against ductless, laying out operating costs, electrical and venting requirements, and the installation itself. Growing families frequently do best with two-stage or variable-speed equipment, which holds more even temperatures from room to room and uses less energy. The decision is yours, based on your home and budget.
Repairs We HandleMost service calls we get in Longmont come down to a handful of familiar problems. The AC runs but the air never gets cold. The furnace won't light, or it lights and shuts off minutes later. The evaporator coil freezes solid, the condenser hums without starting, or a ductless head flashes an error code. Refrigerant leaks, clogged condensate drains, and thermostats that forget their settings round out the list. Our technicians handle all of them, starting with the exact part that failed.
The correct fix depends entirely on the part that failed. On cooling systems, that usually means a capacitor, contactor, or fan motor. On furnaces, it's more often an igniter, flame sensor, or control board. Leaky ductwork pushing conditioned air into the attic is sealed and repaired, and we recover and recharge the refrigerant once the leak itself is repaired. A few of these problems are simply a nuisance, but a cracked heat exchanger or a clogged condensate drain can be a real safety or water-damage risk, and we treat it accordingly.
Our experienced technicians find and fix heating and cooling problems at the source. Early action protects your home and saves money.
Call (970) 602-4958 TodayWhen the AC dies in the middle of a heat wave or the furnace quits on the coldest night of the year, you need help now, not next week. Longmont HVAC provides same-day and emergency HVAC service for Longmont homeowners, with fast response times. Our technicians arrive fully equipped to diagnose the fault, make the repair, or, when a system is beyond saving, get a properly sized replacement installed quickly.
Quick service shouldn't mean cutting corners. Even on emergency calls, we price the job upfront, fix the underlying cause rather than patching the symptom, and explain everything in plain language. That approach has earned us a lot of repeat customers all over Longmont.
Lasting ResultsWe focus on solving the real problem, not just the symptom you noticed. Longmont HVAC tracks down the failed component, the airflow restrictions wearing on your equipment, and the installation shortcuts that cause early failures, so problems are far less likely to return. As a family-owned, experienced and professional company, we treat your home like our neighbors' homes, because that's exactly what you are.
Our process is simple and proven: a thorough inspection, a clear recommendation, professional repair or installation, and honest guidance on maintenance. We handle everything from start to finish so you and your family can count on dependable comfort every day. For year-round peace of mind, ask about our seasonal maintenance plans that keep your heating and cooling covered through every season.
Our experienced technicians are ready to help with any HVAC problem in Longmont and surrounding areas.
Get Help: (970) 602-4958