We offer discounts for military members, first responders, teachers, and seniors. Tell us what applies when you request service in Greeley, CO, and Northern Colorado.

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Heating

Whether you need heating repairs or a brand new system, we’ll thoroughly assess your needs and offer a personalized, cost-effective solution.

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Air Conditioning

Lemons Heating & Cooling, LLC offers superior air conditioning repair and replacement services to homeowners in Northern Colorado.

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geothermal
Geothermal

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.

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Work 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.

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Built 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.
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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!

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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
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.

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Heating
Heating

Get steady heat again with targeted troubleshooting and reliable repairs. We service furnaces and boilers to improve safety, comfort, and efficiency.

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Duct Cleaning
Duct Cleaning

Improve airflow and reduce buildup with professional air duct cleaning. Ask about adding a non-toxic antimicrobial fogger treatment.

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Geothermal HVAC
Geothermal HVAC

Upgrade comfort with geothermal heating and radiant floor options. We help you plan, install, and maintain systems built for efficiency.

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Hot Water Heaters
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.

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Preventative Maintenance
Preventative Maintenance

Keep equipment running smoothly with seasonal checks and a maintenance agreement. Prevent surprises and support efficient operation.

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Evap Coolers
Evap Coolers

Stay comfortable with swamp cooler installation, repair, and seasonal start-ups. We fix weak airflow, leaks, pump issues, and uneven cooling.

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Thermostats
Thermostats

Control comfort with thermostat installation and smart upgrades. We improve performance and help reduce energy waste with correct setup.

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24 Hour Emergency Service
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.

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Mini Splits
Mini Splits

Heat and cool additions, garages, and offices with ductless solutions. We install and service systems for steady comfort room by room.

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Unit Heaters
Unit Heaters

Keep garages and workshops usable with dependable unit heaters. We install and repair units for consistent heat through cold months.

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Choose 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.

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Take Advantage of Our Special Offer

We offer military, first responder, senior, and teacher discounts,
just tell us what applies when you contact us.

Licensed, Insured, and Certified

Credentials That Support Dependable HVAC Work

Proud Sponsor of Greeley Stampede

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.

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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.

Do you work on multiple HVAC brands?

Yes. We service Heil equipment and many other major brands for repairs, maintenance, and replacements.

What are signs I need AC repair?

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.

How do I know it is time for furnace repair?

Common signs include frequent cycling, unusual noises, uneven heating, and rising energy costs, all of which can point to furnace repair needs.

What does air duct cleaning help with?

Air duct cleaning can reduce buildup that affects airflow and indoor air quality, especially in homes with dust, recent remodeling, or allergy concerns.

Do you offer HVAC emergency service after hours?

Yes. Our on-call technician provides HVAC emergency service when urgent issues cannot wait.

Local Feedback That Matters

Gabe Rodriguez

Great service will be our go to HVAC company from now on

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DeAnna McDaniel

Jordan was incredible. He was informative and he even tightened some screws that quieted the blower a bit.

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Cyndie Kramer

LOVE THESE GUYS! They truly care about their job and your problem. Honest and very trustworthy people that trust for everything..

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Valerie James

We have always used Lemons. Good company. Had to have our heating system replaced and added central AC. These guys were fantastic. It did take 2 days, a few complications the job was done and I love our new heater ! It heats our home fast and it is SO quiet!!! Our old system was a bit loud !!! Thank you to everyone involved in getting us set up and hooked up !!!

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Clark Harris

Jordan did an excellent job and was very friendly. Would definitely have him come again to service my furnace.

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Vicky Russell

Lemons heating and air was highly recommended to me by a friend and they did not disappoint! The project manager came right away and took measurements and explained everything . He answered my questions and gave me options all of which were very fair. The installation was 2 days later and the workmen were efficient and explained operating procedures for the new system. I will continue working with them for maintenance on this equipment in the future.

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Steve McLaughlin

Extremely satisfied with our relationship. Reached out to client receiving services. He was very happy with the work. The service person was very nice and professional. His words “I slept nice and warm and I am so blessed to have Catholic Charities help me when I need it the most”. We are very pleased to have a responsive team such as Lemons Heating & Cooling to see to the needs of our clients. Thank you!

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Ike Thompson

Marcus Hall exhibited professionalism in his inspection of our HVAC equipment.

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Cynthia Harling

I was so fortunate that there was a cancellation and a technician could come out on the morning that I called with a furnace system problem! Thanks to Jordan, he was on-time, professional, friendly and very knowledgeable about what he found. I will always use Lemons for my heating and cooling needs!!

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Jennifer Berger

Lemons worked on a large project upgrading the entire HVAC system in my older home. My sales contact, Brian, is incredibly knowledgeable. The technicians have been very professional and on time. When there was a glitch in the project, they went above and beyond to take care of everything. Highly recommend. Update: (Google won’t allow a new review) Here are before and after photos of the final part of my HVAC overhaul. Last year, Lemon’s swapped out the aging AC for a heat pump unit and put in the proper sized air handler (previous one was too small), along with a few minor updates. This year we finished by replacing the 1963(!) boiler, swapping the aging water heater for a heat pump water heater, and moved a baseboard unit that had prevented my front door from opening properly. The new system is designed for easy access and is much less cluttered. It is also designed with multiple shutoffs for easy repairs should issues arise in the future. It feels like a luxury having a system new enough to use modern thermostats, replacing the ancient, inaccurate 1960’s mercury thermostats! Plus it’s just nice to no longer worry about a 62 year old boiler crapping out in the dead of winter. As always, Brian (sales) and Karen (front office) were amazing and worked with my schedule. Techs (Glen, Chris, & Brock) were knowledgeable, on time each day, as unobtrusive as possible with a project like this, and made sure not to let my pets escape during the many trips in and out of the house. They also gave me a full run-down at the end of how to use everything, how to get max efficiency with the system, and maintenance tips I never knew.

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Jo Boyd

on time, friendly and efficient

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Luke Albee

Tech was great

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