NATE - Certified

HVAC Maintenance Plan: Furnace & AC Tune-Ups

Join McCormick's HVAC maintenance plan and keep your system running efficiently year-round — furnace & AC tune-ups, priority service & member repair discounts, built for Northern Colorado homes.

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1030+

5-Star Reviews

20+

Years of Local Service

BBB A+

Accredited Business

NATE - Certified

Technicians

Family-Owned

and Operated

What Does McCormick's HVAC Maintenance Plan Include?

Your membership includes two seasonal visits each year: one cooling tune-up before summer and one furnace tune-up before winter. During each visit, our technicians check safety controls, airflow, electrical connections, system performance, and signs of wear.

A McCormick maintenance plan bundles the two services your system needs most into one simple, recurring membership so you're never scrambling to remember when your equipment was last serviced. Here's what membership covers:

Spring AC tune-up_

Spring AC tune-up

a seasonal inspection and adjustment of your cooling system before summer heat hits. (Only need a one-off service? Schedule a standalone AC tune-up & maintenance instead.)

Fall furnace tune-up_

Fall furnace tune-up

a complete heating system inspection ahead of the cold months. (Prefer a single visit? Ask about our furnace/heating tune-up.)

Multi-point safety & efficiency inspection_

Multi-point safety & efficiency inspection

our techs check electrical connections, gas components, airflow, and key performance metrics.

Priority scheduling & member repair discount_

Priority scheduling & member repair discount

maintenance plan members receive priority scheduling and save 15% on eligible HVAC repairs.

Gold and Platinum options_

Gold and Platinum options

choose the membership level that matches your equipment, home, and maintenance needs.

Why Does HVAC Maintenance Matter in Colorado?

HVAC systems in Greeley, Windsor, Evans, and nearby Northern Colorado communities face tough seasonal conditions. Dry air, wind, dust, hot summer days, and cold winter nights can put extra strain on furnaces and air conditioners.

Seasonal maintenance helps your system stay ready before peak heating and cooling seasons. During a tune-up, McCormick’s technicians check airflow, electrical connections, safety controls, gas components, and overall system performance so small issues can be caught before they turn into bigger problems.

Regular HVAC maintenance can help:

Keep your system running closer to its rated efficiency

Reduce the risk of breakdowns during extreme weather

Support manufacturer warranty documentation

Improve airflow and comfort throughout your home

Catch worn parts, dirty components, or safety concerns early

Give maintenance plan members priority scheduling when service is needed

In Colorado, timing matters. A spring AC tune-up helps prepare your cooling system before summer heat arrives. A fall furnace tune-up helps make sure your heating system is safe and reliable before temperatures drop.

If your system needs more than maintenance, McCormick can also help with air conditioning repair and installation, heating and furnace services, and full HVAC repair or replacement.

Why Northern Colorado Homeowners Trust McCormick

McCormick Heating & Cooling is a family-owned company with more than 20 years of experience serving Greeley, Windsor, Evans, and nearby communities. Our NATE-certified and EPA-certified technicians perform each visit with clear communication, careful workmanship, and respect for your home.

Rated 5.0 stars on Google by 1,030+ customers

Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I submitted a claim through First American Home warranty and they assigned McCormick to take a look at my fire alarm. They called as soon as they opened and set up an appointment with Jake Hernandez to come out today! He was quick to diagnose problem and replaced the malfunctioning alarm. Thank you Jake for your exceptional service! Update 4-2-26 Josiah and Brian came out to tuneup and clean the A/C. They were friendly and professional explaining what was happening during the service. Thank you!!!
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Marcia Jackson profile picture
Marcia Jackson
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Always a pleasure to have McCormick Heating & Cooling over to keep my HVAC system up and Running. Justin and Josiah were professional, punctual, and explained some basic maintenance I should keep my eyes on. 10/10 would recommend Justin and McCormick Heating & Cooling to anyone needing such services.
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Nick Minar profile picture
Nick Minar
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Angelo was a fantastic tech, his other coworkers were just as great, they took care of us 100% and left my furnace room better than they found it, very happy…Thank you McCormick Heating and Cooling!
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derrek majors profile picture
derrek majors
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Angelo was very good at his job, went above what was necessary to make sure everything was installed correctly and will remain safe for us for the future. Cleaned up everything and looks better than before he arrived. Thank you
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Yvonne Majors profile picture
Yvonne Majors
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Wow! What a great experience. Justin was so cheery and fast. He got everything fixed and even changed out the filter. Thanks a bunch
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Kara Tuzinovic profile picture
Kara Tuzinovic
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David and Jason replaced my H Vac system. They were so very knowledgeable and kind. They explained how to use and perform maintenance on my new system. I was extremely pleased how they showed care for my home. Thank you gentlemen I truly appreciate you both. I would recommend McCormick to anyone needing work with their H Vac system.
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Cathy Miller profile picture
Cathy Miller
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I’ve been using McCormick for 7 years now- they are very skilled at working on my non-traditional HVAC mini split system and have consistently saved me money over other companies. Josiah was able to diagnose and fix my heat issue on the spot! Thanks McCormick!
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Kimberly Lammertin profile picture
Kimberly Lammertin
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Justin and the team at McCormick Heating & Cooling were excellent. They took the time to thoroughly diagnose issues with my boiler, test multiple valves, and walk through the system carefully to identify the most cost-effective solution rather than just recommending unnecessary replacements. Their approach was thoughtful, transparent, and very professional. Justin in particular was fantastic—knowledgeable, patient, and clearly experienced. He explained what he was doing at each step and made sure everything was working properly before finishing the job. In the end they replaced the necessary components and got the entire system running perfectly. It’s rare to find a company that is this honest, responsive, and detail-oriented. Highly recommend McCormick Heating & Cooling if you want quality work and technicians who genuinely care about doing the job right.
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Alexander Whiteman profile picture
Alexander Whiteman
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Quick service. In and out quick. Couldn’t expect anything better.
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Gavin Torres profile picture
Gavin Torres
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My entire experience was smooth, informative and successful! Angelo and David installed the new furnace. They were efficient and patient with all my questions. And they were knowledgable and friendly! Highly recommended for your HVAC needs! Thank you Mcormick!
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Isa Segismundo profile picture
Isa Segismundo
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No Heat or No AC? We're Here 24/7

Fast after-hours emergency HVAC service when your system can't wait.

How Much Does the Maintenance Plan Cost?

McCormick offers two maintenance plan options: Gold at $25/month and Platinum at $90/month.

Gold Membership — $25/month

  • Priority scheduling for eligible emergency HVAC service. After-hours emergency visits may include an additional fee.
  • 15% discount on repairs
  • Annual furnace maintenance
  • Annual AC maintenance
  • 2 eligible service-call fee waivers per year. Please call (720) 217-4801 to confirm what is included with your plan before enrolling.

Choose Gold Membership. Call (720) 217-4801 to enroll or confirm plan details.

Platinum Membership — $90/month

  • Everything in Gold
  • $1,000 off a full system replacement
  • Full HVAC system cleaning
  • Humidifier service
  • Filter replacement
  • Carbon monoxide battery replacement
  • Smoke detector battery replacement
  • Annual water heater service/flush

Choose Platinum Membership. Call (720) 217-4801 to enroll or ask which plan fits your home.

Is McCormick's Maintenance Plan Available in My Area?

From dusty spring winds around Greeley and Evans to hot summer afternoons in Windsor and cold winter mornings across Northern Colorado, local HVAC systems often work through wide temperature swings. McCormick's maintenance plan helps homeowners prepare before peak cooling and heating seasons with scheduled AC and furnace tune-ups. 

McCormick is based in Greeley and serves homeowners throughout nearby Northern Colorado communities, including Evans, Windsor, Eaton, Milliken, Johnstown, Loveland, Fort Collins, and Severance. If you are unsure whether your address is inside our maintenance-plan route, call (720) 217-4801 and we’ll confirm availability before you enroll.

Not sure if your home is covered by our maintenance plan? View McCormick’s HVAC service areas to confirm availability before you enroll.

McCormick is a Trusted Armstrong Air Partner
Voted Best HVAC & Furnace Repair Service in Greeley, Colorado
Voted Best HVAC & Furnace Repair Service in Fort Collins, Colorado
McCormick Heating and Cooling is a BBB Accredited Business
Our HVAC Techs are NATE Certified Technicians
Our company is Google Guaranteed Service Provider

Frequently Asked Questions About HVAC Maintenance Plans

Keep Your HVAC System Ready All Year

Signing up for McCormick's HVAC maintenance plan is the easiest way to protect your comfort, your equipment, and your wallet all year long. Give us a call or request your first tune-up to get started.

McCormick Heating & Cooling · 2881 S 31st Ave, Unit 3, Greeley, CO 80631
Serving Greeley & Northern Colorado. See our full service areas.
Hours: Mon–Fri 8am–5pm; after-hours emergency service

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