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We pride ourselves through our proven methods to always surpass expectations.
We are committed to continuously raising the bar through our dedication and outstanding HVAC service.


Once we repair your system, we guarantee our work for 1 full year. If the repair does not solve the problem, we will refund your money for the prior repair. If you wish, we will re-diagnose the problem and repair accordingly for the cost of the new repair. Also, if at any time you are dissatisfied with our service, we will refund you the full amount of our service call and labor charges. We are truly 100% committed to providing you with the best HVAC service and want you to be excited to tell your friends about the quality of our company.


We are experts in the design and sizing of all types of forced air heating systems. Let us design and install a high efficiency heating system that keeps you comfortable on the coldest of days.
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Air Conditioning

We are experts in the design and sizing of high efficiency air conditioning systems. Let us design and install a high efficiency system that keeps you comfortable when the heat is unbearable.
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Water Heating

Whether you are looking for a standard tank hot water heater or a high efficiency tankless water heating system. We are the right choice. We can design high GPM tankless systems that fits your needs perfectly.
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High efficiency

Are you interested in upgrading your home's HVAC system to today's green standard. High efficiency needs to be thought out and personalized to your home. Let us design and install the best system for your home.
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Square Installments

Air Conditioning Repair & Heating Service

ROX Heating & Air is committed to performing expert quality AC repair, maintenance and installation throughout the Denver Metro Area.

Call (720) 468-0689 - 100% satisfaction guaranteed!

Air Conditioning

We offer both residential and commercial air conditioning installation, repair, service, and maintenance.

Heating & Furnace

We offer both residential and commercial Furnace and Boiler installation, repair, service, and maintenance.


We offer both the most competitive and inclusive residential and commercial HVAC Service and Maintenance Plans in the Denver Metro Area.

Quality heating & air conditioning solutions


HVAC & Air Conditioning Installation Littleton | Furnace Repairs Colorado



Air Conditioning - Furnaces - Water Heaters - Tankless Water Heaters - Boilers - Rooftop Units - Humidifiers - Water Filtration - High Efficiency HVAC Systems - And Much More HVAC Services

certified & professional

Quality service is very important to us. To ensure the highest quality service and expertise, we have undergone extensive technical training and education. NATE certification requires yearly continuing education and re-certification. You can trust ROX Heating and Air to provide the best HVAC service and experience in town.

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Bob Seebohar
Bob Seebohar
03:35 28 Jul 20
Rox Heating and Air are fantastic. The owner, Jason, is super attentive and responsive to questions and his team are the best when it comes to installations. Very professional, courteous, and polite. They provide a great service. I highly recommend them!read more
Janelle Bair
Janelle Bair
23:16 26 Jul 20
We recently had ROX heating and air come out to do some work on our air conditioner. We were extremely pleased with their quick response to our needs, their reasonable prices, their trustworthy work ethic, and their professionalism. We will happily recommend ROX to others-we actually already have!read more
Megan Oshel
Megan Oshel
19:15 13 Jul 20
Our AC stopped working late on Friday night, when it had been over 100 degrees outside during the day. After calling over 5 different places and getting the earliest appointment for the following Wednesday, we were a bit hopeless. ROX returned our call the next morning and by 10:30, John arrived. He was super friendly and professional explaining everything to me and taking the extra step to also call my husband and fill him in on the concern as well. Our thermostat ended up going out so it was a quick fix, and John made sure the new one he put in was programmed to our liking. He was out within an hour. Highly recommend ROX and will be keeping their number for future heating and cooling concerns!read more


Our team of highly trained and dedicated technicians will provide you with the absolute best service you can find. Let us show you how HVAC service should be. Affordable, Reliable and Honest Air Conditioning, Furnace, Boiler, Humidifier, Water Heater, Tankless Water Heater, Heat Pump and all other HVAC service, repair, maintenance and installation.

Heating, Ventilation and Air Conditioning Installation

Whether you have moved to a new house or your existing one needs some overhauling, we can install the HVAC system into the building in less time, more efficiency and certainly less cost for you. Unlike the very large expensive companies, at ROX, we are your local residents here to help our neighbors with our affordable, responsive and expert HVAC services.Give us a call to know more about our installation services.

Save Money on HVAC Repair in Castle Pines

We offer a very competitive pricing compared to the rest of the HVAC market in Colorado. Not only are our prices fixed and genuine, we also focus on repairing or replacing only the required part to minimize your expenses, instead of unnecessarily carrying out tasks that are unnecessary that cost you more money. We also only sell you products you truly need, our promise to you is to always be honest and truthful when servicing your HVAC equipment.

Castle Rock Heating & Air Conditioning

Summer can be dreadful if your air conditioner breaks down unexpectedly. A great option to prevent summer air conditioning breakdowns is to have annual maintenance done before the heat of the summer season. We, at Rox Heating & Air provide routine check up and service for castle rock air conditioning. But in case you didn’t have an ac tune up this spring, you are still in luck. Give us a call if you live in Castle Pines for heating and cooling service our team at ROX is NATE certified to carry out all kinds of HVAC repair services.ROX Heating & Air is not restricted to Castle Pines alone. Beyond Castle Pines, we service cooling and heating units in residential and commercial buildings in Centennial, Cherry Hills, Littleton, Parker, Lakewood, Castle Rock, Roxborough, Highlands Ranch, Lone Tree, and the entire Denver Metro Area. Our certified and experienced technicians provide expert air conditioning and heating services such as Installation, Repair, Maintenance and Replacement.

Service Areas


We are NOT - ROCKS Heating & Air We are the Best HVAC Company in Denver, Littleton, Highlands Ranch, Parker, Castle Rock, Aurora, Lakewood, Centennial, Englewood, and pretty much every other city. WE ARE ROX Heating & Air

1745 Shea Center Dr 4th Floor, Littleton, CO 80129