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Top-Rated Heating & Air Conditioning in Denver
Heating
Our Heating products are designed to provide efficient and reliable heating and cooling solutions for your home or business.
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Cooling
From ductless mini-splits to central AC units, our air conditioning products provide reliable cooling and improved indoor comfort.
Heat Pumps
Whether ductless or whole-home, our heat pumps provide quiet, energy-smart heating and cooling to keep every room comfortable in every season.
Are you experiencing issues with your water heater? Need someone to fix your AC unit? Either way, you can call One Nation Plumbing, Heating, and Air. We’re here to provide you with nearly any HVAC or plumbing service you need in Aurora, Denver, CO or a surrounding area. Just tell our contractors what you’re dealing with, and we’ll present you with a solution in no time.
Why Choose Us?
Raising the Standard in Heating & Cooling
At One Nation Plumbing, Heating, and Air, we take pride in keeping your home comfortable, efficient, and problem-free year-round. Whether you’re dealing with a broken air conditioner, a leaking water heater, or indoor air quality concerns, our expert team is here to help.
FINANCING OPTIONS
Flexible Financing for your comfort
At One Nation Plumbing, Heating, and Air, we believe everyone deserves a comfortable home—without financial stress. That’s why we’ve teamed up with Wells Fargo to provide flexible financing options for your HVAC needs. With convenient payment plans and trusted support, you can invest in reliable heating and cooling solutions that fit your budget. Discover how easy it is to bring home comfort within reach.
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We’re the company to call in Aurora, Denver, CO or a surrounding area
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HELPFUL TIPS FROM OUR TEAM OF EXPERTS
Why Is My AC Making a Buzzing Noise? When to Shut It Off and Call for Help
TL;DR: Why Is My AC Making a Buzzing Noise
A quiet hum can be normal, but a loud buzzing noise usually means something is wrong.
Shut your AC off if the outdoor fan is not spinning, the system is blowing warm air, the breaker keeps tripping, you smell burning, or you see ice.
Common causes include a bad capacitor, faulty contactor, loose wiring, fan motor issue, frozen coil, or compressor strain.
You can safely check your thermostat, filter, vents, breaker, and outdoor unit for visible debris.
If the buzz sounds electrical, sudden, or serious, call for help before running the system again.
Why Does My AC Keep Tripping the Breaker?
TL;DR: Why Your AC Keeps Tripping the Breaker
If your AC keeps tripping the breaker, your system is likely pulling too much electricity or dealing with an electrical problem.
You can reset the breaker once, but if it trips again, turn the AC off and stop forcing it back on.
Common causes include a dirty air filter, dirty condenser coil, bad capacitor, failing fan motor, compressor problem, loose wiring, or bad breaker.
Call for help right away if you smell burning, hear buzzing, see smoke, or the breaker will not reset.
An HVAC technician should usually inspect the AC first if the breaker trips when the system starts, runs, or tries to cool.
Should You Repair or Replace a 10-Year-Old AC Unit?
TL;DR: Should You Repair or Replace a 10-Year-Old AC Unit?
A 10-year-old AC unit is not automatically too old to repair, but it is old enough that every repair should be weighed carefully.
Minor repairs like a capacitor, contactor, thermostat issue, or clogged drain line usually make sense if the system has been reliable.
Bigger repairs like a compressor failure, major refrigerant leak, or coil replacement may be a sign that replacement is the smarter long-term move.
Use the $5,000 rule: multiply the age of the AC by the repair cost. If the number is over $5,000, replacement should be part of the conversation.
The best decision depends on repair cost, comfort, energy bills, repair history, warranty, and how long you plan to stay in the home.
