Littleton Heating and Air Conditioning has been serving the Denver Metro area since 1972. We have seen incredible changes within our industry over time but one constant has always been our commitment to provide our customers with unsurpassed quality, exceptional service, and unequaled value with all of their heating and air conditioning needs. All of our work has always been backed by a 100% satisfaction guarantee and minimum of 1 year parts and labor warranty and longer in most cases.
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Certified by Littleton Heating and Air Conditioning • Mar 01, 2026
Certified by Littleton Heating and Air Conditioning • Mar 01, 2026
Reviews
4.6
107 reviews
5 stars
94
4 stars
2
3 stars1
2 stars0
1 star
10
SK
Selma Kristel
4 days ago
5.0
Responsive customer service, knowledgeable and trustworthy.
TS
Theresa Schaefer
Jun 16, 2025
5.0
Needed a new HVAC. The crew- Karen, DJ and Darek were very helpful and had it all done in 2 days. They were on time, very considerate, cleaned up, and explained everything in detail. They serviced my old system every year as well. I would highly recommend them!
CW
Christy Wohlleber
Jun 12, 2025
5.0
Littleton is very responsive. They know their stuff and are honest. Derek does a great job explaining everything. They replaced my whole system and wow what an upgrade! Totally put them in my contacts!
BP
Bruce Proctor
Nov 6, 2024
5.0
Our home A/C unit died in the middle of summer (of course) and Littleton Heating & Air Conditioning responded in record time.
We purchased a Daikin unit that exceeded our expectations in terms of performance and ease of comfort settings. Derek and his crew removed the old one and installed the new one in 1 1/2 days with no hitches.
Karin made it all happen, our kudos go out to her as well.
Bruce Proctor
MM
Michael Manion
Jan 17, 2019
5.0
SUPER impressed when they answered phone on a Sunday! Owner sent technician, Derek, out to look at my failing furnace and said he'd arrive within the hour. It was closer to 30 minutes. We discussed repair option on my 19 year old system. He took measurements and came back in a couple of hours with three options covering a range from repair to full replacement. ADDITIONALLY, he came armed with three oil space heaters which was HUGE because my furnace quit on a very cold weekend. I chose complete replacement, because my equipment was so close to the end of its lifespan, and because we detected very poor ducting into and out of my previous HVAC installation which had led to poor air flow especially top level. I was impressed by Derek's technical understanding of turbulent -vs- laminar airflow and what simple steps they could implement to make large improvements in my ducting. Job end up taking two and a half days for owner Derek, and technician Derek to complete. All three days they showed up shortly after 8 AM, and they worked tirelessly (short stop for lunch obviously) until dinner time. Clearly, both had same attitude for not taking shortcuts, and DOING THE JOB RIGHT. They installed 45 degree bends in the ducting (instead of the previous 90 bends), use nitrogen air to solder copper to prevent compressor damaging contaminants in the line, and read the technical specs on equipment to make sure it was installed correctly. BOTTOM LINE: appreciated answering the phone on Sunday, the loaner space heaters, their politeness, and work ethic. LASTLY, they helped me move our heavy bins back into my storage area! Exceptional service & great people! Thanks fellas!
Frequently Asked Questions About Littleton Heating and Air Conditioning
What services does Littleton Heating and Air Conditioning provide?
Littleton Heating and Air Conditioning offers heating and air conditioning services including installation, maintenance, and repairs, backed by a satisfaction guarantee and warranty.
Where is Littleton Heating and Air Conditioning located?
The company is located at 2679 W Main Street, Suite 300, Littleton, CO 80120, USA.
What are the operating hours of Littleton Heating and Air Conditioning?
They are open daily from 8:00 AM to 4:00 PM, and closed on December 25th.
Which payment methods are accepted by Littleton Heating and Air Conditioning?
They accept American Express, Cash, Check, Discover, Financing options, Invoice, MasterCard, Travelers Check, and Visa.
How can I contact Littleton Heating and Air Conditioning?
You can call them at +1 303-798-3880 or email at dbuczynski14@hotmail.com.
Does Littleton Heating and Air Conditioning have a website for more information?
Yes, their website is https://littletonair.com/ where you can find more details and contact options.
Which nearby places can help me find Littleton Heating and Air Conditioning?
Nearby places like Best Interest Family Law Firm and Clicta Digital Agency can help you orient yourself when visiting the area around 2679 W Main Street, Littleton.
Are there any financial services near Littleton Heating and Air Conditioning that customers might utilize?
Yes, customers can find financial services nearby such as Wells Fargo Advisors Financial Network, Firestone Financial Group, and Revolution Mortgage which might be useful before or after your visit.
Can I coordinate my visit to Littleton Heating and Air Conditioning with any local real estate agents or services?
Absolutely, nearby real estate agents like Nick Romano, Ashley Ruh, Realtor, and Samantha Miller, Realtor operate in the area and might assist with related needs.
What industries surround Littleton Heating and Air Conditioning that might interest me?
The area hosts a variety of services including legal (Best Interest Family Law Firm), health (Allergy Break Up / True Health Acupuncture), transportation (LMS Direct), and construction contractors like Redcastle Builders nearby, offering convenient options for combined errands.
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