License #1041772

Work Time

24/7 service

Call Us Today

(720) 802-5390

AC Heating and Cooling Company in Littleton

Issues with your HVAC systems are surely a hassle for you as a homeowner, especially if it breaks down when you need it the most. But we, at HVAC Alliance Expert, are the best air conditioning & heating service company that will serve you. In Colorado, we are the best people you can ever trust to fulfill your needs. Rest assured that we will prioritize you more than anyone else.

HVAC Alliance Expert is well-renowned to be the source of top-rated services. For your reference, here is the list of our heating, cooling, and air conditioning (HVAC) services in Littleton

  • Residential HVAC services

  • Commercial services

  • Thermostat Installation

  • Thermostat Repair

  • Air Duct Cleaning

  • Air Duct Installation 

  • Furnace Installation

  • Furnace Repair

  • Heating Maintenance

  • Indoor Air Quality

  • Same day emergency HVAC repair services

  • HVAC system energy efficiency

  • Central air conditioning repair, installation, and maintenance

These services we provide to everyone are guaranteed to be of top quality.

HVAC Alliance Expert serves in every street and neighborhood in Littleton, Arapahoe County CO:

Wherever you are in Littleton, know that HVAC Alliance Expert will always be there for you to address your HVAC needs. With our top-class HVAC services, there is no way you will be disappointed but rather fulfilled because of its efficiency. These services we provide are offered in every neighborhood of the said area. Read further below to know more.

  • Alkire Acres

  • Arapaho Hills

  • Belleview Farms

  • Berkshire Aspen Grove

  • Bowles

  • Bow Mar

  • Brookridge Heights

  • Camden Lakeway

  • Centennial

  • Chatfield

  • Cherokee Ridge Estates

  • CKS/E

  • Coal Mine Avenue

  • Colony & Reef At Marina Point

  • Columbine West

  • Concordia

  • Country Farms-Eaton-Chase

  • Coventry

Frequently Asked Questions with Answers from Our Experts

HVAC Alliance Expert has been receiving so many inquiries about HVAC. Hence, we have here the most asked questions answered by our certified experts.

  • What is a ductless mini-split system?

It is an alternative to conventional heating and cooling systems like central air. Ductless HVAC operates similarly to central heating and cooling, except that ductwork is unnecessary. Your mini-split system will feature an interior and an outdoor unit, but installation will only necessitate drilling a very small hole through the external wall, just large enough to accommodate a refrigerant tube. The same unit will condition the air within your house and circulate it back into space.

  • When should I have my system serviced?

Before each heating and cooling season begins, your HVAC systems need to be serviced. Therefore, your heat pump or furnace should have its routine maintenance conducted at the end of summer or the start of fall, whereas your air conditioner should have its routine maintenance performed at the end of winter or spring. In this way, you can prepare your systems for usage and assess if there are any hidden issues to avoid trouble while using them.

  • What should I do when my AC freezes up?

Most likely, there is a blocked airflow issue. The air conditioner must first be turned off so that it can defrost. Turn on the fan for about an hour after it has thawed sufficiently, estimated 1-3 hours. It is also a good time to replace your air filter for more efficient running. Pouring hot water will also cause the ice to melt more quickly, thawing your AC. Warm water or flowing water will also work to defrost the ice; really hot water is not necessary.

If you have problems with your system that you cannot deal with alone, avail of our top-rated  HVAC repair, installation and maintenance. When you need urgent assistance, be informed that we also offer highly reliable emergency HVAC services to save your day.

Why Trust HVAC Alliance Expert?

HVAC Alliance Expert is trusted by countless people and is known to be the certified and the best air duct service company, and heating and air conditioning company. Whenever you have issues or needs that you wish to be addressed professionally, our team will surely have you covered. Having us means you will also have the privilege to enjoy the following benefits.

  • Professional customer support

  • Fast response time

  • Well-rounded certified experts

  • Above-quality HVAC services

Hence, trust no one but only the reliable AC and heating company in Arapahoe County, and that is us, HVAC Alliance Expert.

HVAC Alliance Expert is sure to provide the best for the top-quality HVAC services you seek to acquire to end your difficulties. Call us now and prepare yourself to be fulfilled by our certified professionals.

Schedule Your Service!


Our certified and professionally trained service experts are only satisfied when they know a job has been done to the best of its ability.


Offering flexible payment methods and  financing for customers with approved credit.


We love our loyal customers and constantly offer them savings, specials and discounts.


Want a second opinion or are curious about the cost of something? Our technicians offer no hassle, commitment free estimates.


Home Owners Across California

Customer Reviews

Our Clients About Alliance Expert

Schedule Your Service!