Ask About Available Discounts
Heating
Whether you need heating repairs or a brand new system, we’ll thoroughly assess your needs and offer a personalized, cost-effective solution.
Learn MoreAir Conditioning
Lemons Heating & Cooling, LLC offers superior air conditioning repair and replacement services to homeowners in Northern Colorado.
Learn MoreGeothermal
Geothermal technology is one of the most energy-efficient heating and cooling choices you can make. Lower your electric bills and improve your home's comfort.
Learn MoreWork with a Reliable HVAC Contractor in Greeley, CO, and All of Northern Colorado
We provide repair, installation, and maintenance for heating and cooling systems across Greeley, CO. Since 2001, Lemons Heating and Cooling has delivered dependable work backed by licensed, insured, and NATE-certified technicians, plus an A+ BBB rating, for HVAC needs.
See Our StoryBuilt on Straightforward Service
We are Lemons Heating and Cooling, and we have been serving Greeley, CO, and Northern Colorado since 2001. When a system is noisy, uneven, or driving up your utility bill, we start with real troubleshooting, not guesswork. You will get clear explanations, practical options, and workmanship that holds up through Colorado seasons.
We specialize in Geothermal Heating and Cooling systems, providing complete solutions from system design and professional installation to ongoing maintenance and repair. Our team services all types of Heating and Cooling equipment to keep your home comfortable and energy efficient throughout the year. We also offer indoor comfort solutions, including Humidification systems, advanced Filtration systems, Programmable Thermostats, and reliable 24-Hour Service whenever you need it.
As a licensed and insured HVAC contractor with NATE certification and an A+ Better Business Bureau rating, we focus on doing the job right and treating your home with care.
- Licensed and Insured: We meet requirements and protect your property during every visit.
- NATE Certified Team: We follow proven methods for accurate diagnostics and lasting repairs.
- A+ BBB Rating: We have built trust through dependable service and follow-through.
- Plain-Language Answers: We explain what failed, what caused it, and what fixes it.
- Options That Fit: We help you choose repairs or replacements that match your goals and budget.

Comfort Solutions That Fit Your Space
From Furnace repair and AC repair to Air Duct Cleaning and Geothermal Heating, we tailor recommendations to your home’s layout, usage, and comfort priorities. You get steady performance, efficient operation, and clear next steps.
For replacements and new installations, we offer Free Estimates!

HVAC Services for Real Colorado Conditions
We handle air conditioning, heating, duct cleaning, geothermal HVAC, water heaters, preventative maintenance, evap coolers, thermostats, mini splits, unit heaters, and 24-hour emergency service.
Air Conditioning
Restore cool air quickly with clear diagnostics and lasting repairs. We fix airflow issues, leaks, and systems that run but do not cool reliably.
View AC Repair Details
Heating
Get steady heat again with targeted troubleshooting and reliable repairs. We service furnaces and boilers to improve safety, comfort, and efficiency.
Explore Furnace Repair Solutions
Duct Cleaning
Improve airflow and reduce buildup with professional air duct cleaning. Ask about adding a non-toxic antimicrobial fogger treatment.
See Duct Cleaning Services
Geothermal HVAC
Upgrade comfort with geothermal heating and radiant floor options. We help you plan, install, and maintain systems built for efficiency.
View Geothermal HVAC Services
Hot Water Heaters
Get hot water back with repairs and replacements for tank and tankless systems. We service trusted brands like AO Smith and Navien.
Explore Water Heater Services
Preventative Maintenance
Keep equipment running smoothly with seasonal checks and a maintenance agreement. Prevent surprises and support efficient operation.
View Maintenance Options
Evap Coolers
Stay comfortable with swamp cooler installation, repair, and seasonal start-ups. We fix weak airflow, leaks, pump issues, and uneven cooling.
View Evap Cooler Details
Thermostats
Control comfort with thermostat installation and smart upgrades. We improve performance and help reduce energy waste with correct setup.
See Thermostat Details
24-Hour Emergency Service
Get help when heating or cooling problems cannot wait. Our on-call technician responds fast to restore comfort and system function.
View Emergency Help
Mini Splits
Heat and cool additions, garages, and offices with ductless solutions. We install and service systems for steady comfort room by room.
See Mini Split Solutions
Unit Heaters
Keep garages and workshops usable with dependable unit heaters. We install and repair units for consistent heat through cold months.
View Unit Heater DetailsChoose a Team That Shows Up
When you need an HVAC contractor in Greeley, CO, we deliver dependable diagnostics, clean workmanship, and repairs that last. Call Lemons Heating and Cooling for reliable comfort.
We focus on fixes that make sense, whether you are dealing with weak airflow, uneven rooms, or a unit that will not keep up. Our process is straightforward: we inspect, identify the cause, explain options, and complete the work with attention to safety and performance.
You will know what changed, why it mattered, and how to keep your system running well. For fast help, call (970) 353-3527 or use our contact form to request service in Greeley, CO, and all of Northern Colorado.

Take Advantage of Our Special Offer
just tell us what applies when you contact us.
Serving Greeley and All of Northern Colorado
We are based in Greeley, CO, and serve surrounding Northern Colorado communities. Count on us for HVAC services that are straightforward, timely, and built to last.
Frequently Asked Questions
Here are quick answers from Lemons Heating and Cooling to help you make smart decisions about heating, cooling, and indoor air quality in Greeley, CO.
Yes. We service Heil equipment and many other major brands for repairs, maintenance, and replacements.
If your system is running but not cooling, short cycling, leaking water, or blowing warm air, it is time for AC repair and a diagnostic visit.
Common signs include frequent cycling, unusual noises, uneven heating, and rising energy costs, all of which can point to furnace repair needs.
Air duct cleaning can reduce buildup that affects airflow and indoor air quality, especially in homes with dust, recent remodeling, or allergy concerns.
Yes. Our on-call technician provides HVAC emergency service when urgent issues cannot wait.
Local Feedback That Matters
Gabe Rodriguez
Google Reviews
DeAnna McDaniel
Google Reviews
Cyndie Kramer
Google Reviews
Valerie James
Google Reviews
Clark Harris
Google Reviews
Vicky Russell
Google Reviews
Steve McLaughlin
Google Reviews
Ike Thompson
Google Reviews
Cynthia Harling
Google Reviews
Jennifer Berger
Google Reviews
Jo Boyd
Google Reviews
Luke Albee
Google Reviews
