In business since 2021
Electrical, Handyman
About us: "Michael is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business."

"Andrew did an outstanding job on my 2 furnaces. High quality workmanship at an affordable price! I would recommend him for any of your heating and air projects."
Don H. in November 2024
HVAC
"Brent was absolutely professional and awesome, he did a great job repairing our furnace in a timely manner, I highly recommend A Moonlighting Heating and Air Conditioning, thanks again Brent!"
Mark C. in October 2020

In business since 2020
Electric Furnace: Repair, Central A/C - Install, Electric Furnace: Install , and 2 more
About us: "We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer need. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job."

Furnace and AC Service repair, Duct and Dryer Cleaning, AC Installation , and 1 more
"During a serious cold snap my 50 year old boiler died. They came as soon as I contacted them and the next day they promptly replaced it with a brand new one. My new boiler is already up and running and the temperature in my 112 year old house is heating up quickly. Great service, polite young HVAC professionals."
Michelle M. in February 2020

HVAC Repairs
"I would suggest you drop all other services and go with this one only. This service man is far beyond the skills and service of all others. I had one show up in car and a back pack. He looked at and said he would send a quote ?????? My furnace is out , its late and the temp outside is 0. Tony Bertolini repaired it less then a hour with no parts. This is a man that knows his S!!! and is more than worth his charges.When the weather starts to warm up I will call him to install a new one . [ I will call no one else .}"
Edward H. in December 2022

In business since 2012
HVAC
About us: "We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!"
In business since 1991
HVAC
About us: "We have been in business for over 27 years and are Nastec and NATE certified. We do over 20,000 service calls per year and about 50% of those are from repeat and referral business. A couple of reasons for that are: we GET OUT the SAME DAY and we have our own training facility where our techs are kept up to date on all the industry changes and not necessarily on your equipment. We are master plumbers, master electricians, and an HVAC company so if you have any needs in these areas let us know."

Residential Plumbing
"Mike did a great job at a reasonable price without much advance notice. I would hire him again without reservation!"
Phil B. in June 2023

Drain and sewer line cleaning, excavation and repair, Plumbing fixtures repaired and replaced, Video sewer inspection , and 1 more
"We have been using this excellent company for over 20 years and would highly recommend them. Our recent installation of a new Rheem furnace and AC reinforced our confidence in this excellent company. Though there were a few hiccups in the installation, I received the most courteous and concerned assistance one could hope for when purchasing and installing expensive and important equipment. Thank you for our new system! With a shout out to all those who went above and beyond: Troy, Jensen, Trystan, Keenan, Daran, Craig, A'lan, Brandon, Sol, Agnes, and everyone else that showed up. You were a great comfort and helped make this installment a success!"
8D49DB906206DB23448750805DD1B371D2A472DE28D6B09EC024EFAD500E24D3 A. in November 2024
Hvac
"We had two AC units and a new furnace installed they were prompt, efficient, very respectful and great customer service! Dean was an absolute pleasure to work with, they have earned my business for life on any HvAC services I might need! Highly recommend"
Danna G. in August 2024

"I signed up 3 years ago to the Swan Club, which includes yearly inspections of our furnace, ac, and plumbing. Mark recently inspected our air conditioning system. After purchasing an HVAC system from Swan, we joined the Swan Club, which includes yearly inspections. Yesterday our service technician was Mark. He was extremely thorough and professional, and and walked us through the whole system with pictures and comments. He could not have been more helpful. Thanks Mark"
8A9C1027C64406D89E4714FA2CE161645E7AB7C2BE529DCA0944AFB7F1EE67E3 1. in March 2025

"I've used Applewood Plumbing, Heating and Electric in the past and have never been disappointed. Preston came to perform a routine maintenance check on my furnace and noticed a problem with my water heater (potential carbon monoxide leak). He explained the issue and contacted one of their plumbers, sent pictures and, with my approval, arranged for immediate service. He then completed the inspection of my furnace and explained the inspection & the results and answered all of my questions. He was knowledgeable, courteous, and was able to explain things in a way a non-HVAC guy could understand."
Jeffrey H. in November 2021

Repair & Maintenance, Furnace, Ductwork , and 2 more
"Best explanation of what needed to be done without central air, furnace, and hot water heater Gregory was very knowledgeable about the project and how it would occur, heâ s very knowledgeable and polite !"
Don A. in August 2024

Central A/C, Ducts & Vents, Attic Install , and 1 more
"One Hour has been my HVAC supplier for more than a decade, and I have never had a reason to consider any other firm. This week Justin L. and Steve came to install improvements. They were professional, courteous, and took the time to explain to me just what they were doing, and to answer my questions. On a scale of one to ten they were both elevens. I'd give them six stars if I could. You can trust One Hour to do it right."
Robert M. in December 2018
Longmont Heating & Furnace Contractors are rated 4.9 out of 5 based on 1009 reviews of 1009 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
If you're looking for Heating & Furnace Systems Contractors that serve a different city in Colorado, here are some popular suggestions:
Find additional Colorado Heating & Furnace Systems Contractors
Find out how HomeAdvisor can help your business