Satisfaction Guarantee


At Johnny Stubbs Services, we use only the best quality products to ensure that your heating and cooling systems run efficiently and last for years. Our team of experts is available to provide the proper guidance and help you make informed decisions about your heating and cooling needs. We pride ourselves on delivering prompt and reliable service and stand behind our work with a satisfaction guarantee.

Opening Hours

Mon – Fri: 8:00AM – 06:00PM

You Can Find Us

9457 S University Blvd
Unit 821
Highlands Ranch, CO 80126

Call Us


Our team of certified professionals has extensive experience installing, repairing, and maintaining air conditioning, heating, and water heater systems. We are committed to providing exceptional service and ensuring your comfort, safety, and satisfaction with our work.

Johnny Stubbs


We Provide Our Best Services For You.

Air Conditioning Service, Repair And Install

We will keep your system running as the manufacturer designs and make sure it works on the days you need it most.

Heating Install Replacement Repair And Service

We will keep your system running as designed by the manufacturer, along with making sure it works on the days you need it most.

Humidifier Install And Service

Ensuring your home is humidified correctly will improve not only your home’s comfort but the health of your home.

Thermostats Install And Replacements

No matter what you need, want, or like, we have you covered with a vast line of controls to give you control over your system and comfort.

Water Heater Install And Repairs

We have you covered from replacing your current system to upgrading you to the next level of on-demand water heaters.

Boilers And Hydronic System Snowmelt

From keeping your house comfortable to ensure systems are working as designed and installing new systems to increase efficiency and convenience in your home.

Experience the comfort of luxury.

Get a Free Quote

  •   I had a positive previous experience with the owner so I hired his company to come out and replace my hot water heater.  He sent two employees, Jon Watson and... read more

    thumb Bob A.

      John and his crew did a great job on our furnace replacement. We had a complicated job and a large replacement and they were amazing. They  were able to replace... read more

    thumb Tommy Y.

      Johnny and his team are amazing! They're quick, professional, and experts in their field. We use them for both our rental and residential properties-- they're wonderful. Friendly and full service,... read more

    thumb Cara H.

      My husband tried to install a smart thermostat and we found out we needed another wire connected to our furnace. I googled and tried to schedule with a different company... read more

    thumb Laura J.
  •   These people were the best!  Quick and proficent. when it turned out that we had a pipe rusting from our boiler which they serviced, they were fast to fix it.... read more

    thumb Ilse W.

      Without a doubt, I highly recommend Johnny Stubb's Service for HVAC inspection, cleaning, repair and replacement! Recently we had a problem with no hot water. With two kiddos under 5... read more

    thumb Mary M.

      Johnny Stubbs's customer service is excellent. Their staff is small enough to feel personal but big enough to be available in a reasonable amount of time for surprise calls. Jon... read more

    thumb Carolyn G.

      Best professional and reasonable service ever!  Our Central air died after a long life in the middle of a heat wave.   Most professional assessment and best quote we got... read more

    thumb Joan F.
  •   Doubling down on my 5 Star review from 3 years ago...these guys are great.  We had a leak, an urgent mess was developing, called Johnny, sent him a video, tech... read more

    thumb Scott S.

      Johnny and his team (Robert and John W.) are very professional. They have done work for us on several occasions. They have always been on time and have done good... read more

    thumb Kent S.

      My boiler started leaking so, I got quotes from two heating companies, they both wanted over $17,000.00 for a new boiler.  Johnny Stubbs was recomended to me so I called... read more

    thumb Patricia P.

      Just had a great experience with John at Johnny Stubb's Services. He was honest, professional, and upfront. Upstanding guy and the 97 five-star reviews on Yelp speak for themselves! read more

    thumb Jennifer L.
  •   Johnny Stubb's Services was awesome.  From the very beginning I was impressed with their approach, honesty and interest in just doing things right.  During the visit, it was immediately recommended... read more

    thumb Tom D.

      What a treat dealing with John and his tech, Jon Watson.  They were prompt (I'm not used to 30 minute windows rather than hours).  It turned out our cooler needed... read more

    thumb Aaron L.

      Our AC was not blowing cold air on the two hottest days of the summer! They came out within one day and fixed our unit. Very honest about the problem.... read more

    thumb Leslie W.

      One of our furnaces stopped working a month ago so I called our old HVAC guy only to find out that he sold his company to a large regional company.... read more

    thumb Sean W.
  •   John and Erin were great in getting me on the schedule for services to the HVAC and water heater while I was under a deadline for the sale of my... read more

    thumb Andrea K.

      My AC went out so I called Johnny Stubbs to look at my AC system.
    The tech. showed up and had my AC working like new in less than 30 minutes.
    Doug... read more

    thumb Hardie P.

      Johnny Stubbs is awesome! Fixes problems with a fair price and honest work! Full install of furnace ac and whole house humidifier at a great price and on time! No... read more

    thumb Matt B.


Littleton CO AC & Furnace Repair | Trusted HVAC Service

Maintaining your AC and furnace is necessary to ensure the comfort of your family regardless of the weather. Don’t wait until the season changes to get your heating and cooling system repaired. Schedule a maintenance call-out and have your AC and furnace tended to and keep your home comfortable all year long.


Need Your Air Conditioner or Furnace Fixed? Call Our HVAC Pros!

Finding an HVAC contractor that provides exceptional repair, maintenance, and installation services might seem like an arduous task. While many companies offer these services, only Johnny Stubb’s Services guarantees excellent workmanship, great customer experience, and service that you can trust from a company that believes in providing only the best for you and your family. 

We know the frustration of suffering an HVAC breakdown when you least expect it, and we have a number of tailor-made solutions to fit your pocket. Our technicians will keep you informed every step of the way and strive to restore your HVAC system to its former glory in no time at all. 

We guarantee:

  • Superior customer service
  • Efficient repairs using only the best quality products 
  • Regular feedback on all processes and costs

Operating in the Highlands Ranch, Colorado, area, Johnny Stubb’s Services are highly recommended, and we have over 1,000 happy customers who will vouch for our incredible service. 

From regular maintenance to repairing even the trickiest fault or break, our team of highly-trained and qualified technicians is well-placed to assist you with all your HVAC needs. 

At Johnny Stubb’s Services, your comfort is our top priority, and we offer a range of services that will restore your comfort, and your sanity, in no time at all. We offer prompt service, so give us a call and see just what we can do for you.


Get Your Air Conditioning or Heating Repaired ASAP | Call Today!

Don’t delay, and give us a call today to help maintain or repair your HVAC system. We offer quick, reliable service, giving you complete peace of mind that your HVAC system is in tip-top condition. 

Why wait for disaster to strike when you can call us anytime for all your repair and maintenance needs? Don’t let yourself be caught in a situation where you realize that your system is not working when you need it the most by having even the smallest issue attended to as it happens. 

With budget-friendly services to suit any pocket, Johnny Stubb’s Services will maintain and repair your HVAC system to ensure that you are comfortable all year long. 

No problem is too big or small to handle, so call us today and experience superior service the first time, every time. Our workmanship is guaranteed, so feel free to read our customer testimonials to see just how many happy Johnny Stubb’s Services customers there are that will recommend our services. 

Call us for an obligation-free quote or to schedule an appointment with our highly-qualified team to fix your HVAC issues once and for all.