Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Johnstown, CO

There are 12 highly-rated local heating and air conditioning pros.

TRUSTED BY JOHNSTOWN, CO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon547
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Johnstown

Avatar for Heart Heating, Cooling, Plumbing & Electric

Heart Heating, Cooling, Plumbing & Electric

646 Bryant St
4.77(
77
)
Approved Pro

Heart Heating, Cooling, Plumbing & Electric

646 Bryant St
4.77(
77
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
387 local quotes requested

Heart Heating, Cooling, Plumbing & Electric provides the highest quality service for all your Furnaces, Air Conditioner, Boilers, Water Heaters, plumbing, and electrical systems. We utilize the latest technology to save our customers time and money, including tablet-based systems with "Uber Style" tracking of your technician and "Up Front" pricing so there are never any surprises. Our staff is licensed, insured, background checked, drug tested, and in a company uniform and vehicle for your safety and peace of mind. We are a veteran-owned company.

"Seneca Trujillo came out to give us a price quote on electrical work in our garage for an EV. He was professional, honest, straightforward and explained everything clearly. He took the time to answer all of my questions and concerns and gave a fair and transparent estimate without upselling unnecessary work. It's refreshing to meet someone who is trustworthy and puts integrity first. He definitely deserves a raise for the way he represents Heart Heating, Cooling, Plumbing and Electric."

Joe V on July 2025

Heart Heating, Cooling, Plumbing & Electric provides the highest quality service for all your Furnaces, Air Conditioner, Boilers, Water Heaters, plumbing, and electrical systems. We utilize the latest technology to save our customers time and money, including tablet-based systems with "Uber Style" tracking of your technician and "Up Front" pricing so there are never any surprises. Our staff is licensed, insured, background checked, drug tested, and in a company uniform and vehicle for your safety and peace of mind. We are a veteran-owned company.

"Seneca Trujillo came out to give us a price quote on electrical work in our garage for an EV. He was professional, honest, straightforward and explained everything clearly. He took the time to answer all of my questions and concerns and gave a fair and transparent estimate without upselling unnecessary work. It's refreshing to meet someone who is trustworthy and puts integrity first. He definitely deserves a raise for the way he represents Heart Heating, Cooling, Plumbing and Electric."

Joe V on July 2025


Avatar for Behold Heating & Cooling Services

Behold Heating & Cooling Services

9800 Mt Pyramid Ct #4040
4.94(
32
)
Approved Pro

Behold Heating & Cooling Services

9800 Mt Pyramid Ct #4040
4.94(
32
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
285 local quotes requested

Behold the Difference! Every day we are invited into our customer’s homes. Into their safe place and sanctuary. Quite often this is in the midst of a concern or issue that needs to be fixed! With an extensive background that spans well beyond just the trades, we love to be different. In addition to decades of industry experience, we bring some secret sauce - we love to take all the time needed to help, to make sure you are comfortable, and to provide amazing solutions. Come BEHOLD the difference! "Unfortunately we do not service or intall swamp or evaporative coolers".

"Professional, friendly and very efficient"

Julia R on October 2025

Behold the Difference! Every day we are invited into our customer’s homes. Into their safe place and sanctuary. Quite often this is in the midst of a concern or issue that needs to be fixed! With an extensive background that spans well beyond just the trades, we love to be different. In addition to decades of industry experience, we bring some secret sauce - we love to take all the time needed to help, to make sure you are comfortable, and to provide amazing solutions. Come BEHOLD the difference! "Unfortunately we do not service or intall swamp or evaporative coolers".

"Professional, friendly and very efficient"

Julia R on October 2025


Avatar for Limelight Services LLC

Limelight Services LLC

5255 Ronald Reagan Blvd
4.71(
17
)
Approved Pro

Limelight Services LLC

5255 Ronald Reagan Blvd
4.71(
17
)
Approved Pro
Customers say: Quality work
201 local quotes requested
17 years of experience

Limelight Services is the only family owned, Google 5-star-average (with 300+ reviews) electrical, plumbing, and HVAC home services company located in Northern Colorado. We pride ourselves in finding creative solutions to your needs, from the simplest troubleshooting problem to the most complex project. We are your on-time, same day electrician, plumber, and HVAC specialist. We strive to offer 5 star service from the first moment we communicate, and for years to come. Our goal is to be your home services company of choice for as long as you own a home in Northern Colorado. We understand that we must be exceptional for that to happen, and we do all we can to live up to our promises. The result? The level of quality and care experienced by our customers. We would be honored to have an opportunity to earn your business. Thank you for taking the time to find out more about us, we hope to hear from you soon.

"Tony did a great job replacing my broken 50 gallon self venting hot water heater. It is in a difficult space to maneuver getting the old one out and the new one in. He did a great job updating what needed to be done (in my old 1910 home so there is always something!) and I feel very confident in their work. Limelight is my go to place and am so glad I found them!"

Ruth W on May 2025

Limelight Services is the only family owned, Google 5-star-average (with 300+ reviews) electrical, plumbing, and HVAC home services company located in Northern Colorado. We pride ourselves in finding creative solutions to your needs, from the simplest troubleshooting problem to the most complex project. We are your on-time, same day electrician, plumber, and HVAC specialist. We strive to offer 5 star service from the first moment we communicate, and for years to come. Our goal is to be your home services company of choice for as long as you own a home in Northern Colorado. We understand that we must be exceptional for that to happen, and we do all we can to live up to our promises. The result? The level of quality and care experienced by our customers. We would be honored to have an opportunity to earn your business. Thank you for taking the time to find out more about us, we hope to hear from you soon.

"Tony did a great job replacing my broken 50 gallon self venting hot water heater. It is in a difficult space to maneuver getting the old one out and the new one in. He did a great job updating what needed to be done (in my old 1910 home so there is always something!) and I feel very confident in their work. Limelight is my go to place and am so glad I found them!"

Ruth W on May 2025


LC Contracting, LLC

1201 Peak Ct
5.00(
11
)
Approved Pro

LC Contracting, LLC

1201 Peak Ct
5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
38 local quotes requested

We are your hometown HVAC company! Your HVAC equipment keeps your property comfortable year-round. It's important to work with a reliable HVAC contractor to make sure that your equipment is always working effectively. Turn to LC Contracting, LLC in Severance, CO for repairs, installations and replacements. Whether you need water heater services or a new furnace, we can handle it. Contact us today to schedule our services.

"He did a great job!"

Deane B on June 2022

We are your hometown HVAC company! Your HVAC equipment keeps your property comfortable year-round. It's important to work with a reliable HVAC contractor to make sure that your equipment is always working effectively. Turn to LC Contracting, LLC in Severance, CO for repairs, installations and replacements. Whether you need water heater services or a new furnace, we can handle it. Contact us today to schedule our services.

"He did a great job!"

Deane B on June 2022


Savage Heating and Air LLC

1882 East 104Th Ave Apt.1316
5.00(
1
)
Approved Pro

Savage Heating and Air LLC

1882 East 104Th Ave Apt.1316
5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 local quotes requested

In Business Since 2023 SAVAGE HEATING AND AIR, LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 8 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Savage Heating and Air has extensive knowledge on all my HVAC needs. Very nice and professional"

Andrew N on December 2024

In Business Since 2023 SAVAGE HEATING AND AIR, LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 8 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Savage Heating and Air has extensive knowledge on all my HVAC needs. Very nice and professional"

Andrew N on December 2024


Cool Ducts, LLC

2580 E Harmony Rd Suite 301-6
5.00(
4
)
Approved Pro

Cool Ducts, LLC

2580 E Harmony Rd Suite 301-6
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

Cool Ducts LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Cool Ducts LLC is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating

"I highly recommend them. They are knowledgeable and professional. Nick is super cool. Nick has a great personality and explained the options in detail. He was very detailed oriented and cleaned up afterwards. My system is working at its best. He is dedicated to providing 100% customer satisfaction."

A L on February 2024

Cool Ducts LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Cool Ducts LLC is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating

"I highly recommend them. They are knowledgeable and professional. Nick is super cool. Nick has a great personality and explained the options in detail. He was very detailed oriented and cleaned up afterwards. My system is working at its best. He is dedicated to providing 100% customer satisfaction."

A L on February 2024


"Steve was great! He came out on July 4th!! That right there says a lot to me, he had to pick up the part that we needed on the 5th due to the holiday and got our air back up and running right away!"

Brianne S on July 2024

Here at HALO Heating and Air, we are locally owned and operated. No job is too big or too small. Call us today for a free estimate! We are looking forward to going above and beyond on your project soon.

"Steve was great! He came out on July 4th!! That right there says a lot to me, he had to pick up the part that we needed on the 5th due to the holiday and got our air back up and running right away!"

Brianne S on July 2024


Avatar for Complete Comfort Designs LLC

Complete Comfort Designs LLC

937 Keneally Ct.
5.00(
5
)
Approved Pro

Complete Comfort Designs LLC

937 Keneally Ct.
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

At Complete Comfort Designs LLC, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumer's needs. 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.

"I had the best experience booking and getting the service completed with Complete Comfort Designs. It was as smooth and professional as could be!! We had our A/C and heating system tune-up, and we will continue using this company for years to come as it was everything a homeowner could ask for."

Maria S on September 2023

At Complete Comfort Designs LLC, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumer's needs. 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.

"I had the best experience booking and getting the service completed with Complete Comfort Designs. It was as smooth and professional as could be!! We had our A/C and heating system tune-up, and we will continue using this company for years to come as it was everything a homeowner could ask for."

Maria S on September 2023


"Kyle Hart is very professional and takes great pride in his work. Because I had a bad experience with another HVAC company, I was looking for someone that was accurate and honest. That's Kyle. I am very pleased with his job ethics. I will be using him for all my HVAC and AC needs."

Cheryl M on February 2022

Looking for a reliable and honest heating and air conditioning contractor? Experienced in residential & commercial heating and air conditioning services. I’m a Colorado native and am based out of Weld County. I service northern Colorado and most of Denver metro areas.

"Kyle Hart is very professional and takes great pride in his work. Because I had a bad experience with another HVAC company, I was looking for someone that was accurate and honest. That's Kyle. I am very pleased with his job ethics. I will be using him for all my HVAC and AC needs."

Cheryl M on February 2022


All Season Heating & Air Conditioning, LLC

906 Messara Drive
5.00(
4
)
Approved Pro

All Season Heating & Air Conditioning, LLC

906 Messara Drive
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

All Season Heating & Air Conditioning has been locally owned and operated for over 17 years serving Fort Collins and the surrounding areas. Our size allows us to maintain the highest level of quality and customer service. Our focus is and has always been the attention to the needs of each and every customer. We specialize in the installation of custom heating, air conditioning and zone systems for all residential and light commercial needs. This includes: * New and replacement furnace and air conditioning system installations *Remodels *Basement finishes *Home additions *Steam Humidifiers *Zone Systems *Service and maintenance on all makes and models

"Fantastic - came out id the dead of winter to fix my heater! Also installed a central A/C unit. Always cleans up, even vacuums after he is done. Good price & excellent service!"

Mike H on March 2017

All Season Heating & Air Conditioning has been locally owned and operated for over 17 years serving Fort Collins and the surrounding areas. Our size allows us to maintain the highest level of quality and customer service. Our focus is and has always been the attention to the needs of each and every customer. We specialize in the installation of custom heating, air conditioning and zone systems for all residential and light commercial needs. This includes: * New and replacement furnace and air conditioning system installations *Remodels *Basement finishes *Home additions *Steam Humidifiers *Zone Systems *Service and maintenance on all makes and models

"Fantastic - came out id the dead of winter to fix my heater! Also installed a central A/C unit. Always cleans up, even vacuums after he is done. Good price & excellent service!"

Mike H on March 2017

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Heating and Air Conditioning questions, answered by experts

Not necessarily. Some portable air conditioners may be vented out a door, wall, or ceiling—or even into another room. It’s not necessarily dangerous to run a portable air conditioner without venting it, but it is counterproductive since the unit needs to vent the heat in order to cool the room down in the first place. Without venting your portable AC unit, you’re essentially running a dehumidifier and increasing the temperature in the room. 

Don’t run your AC with a wet filter. It can cause your AC to work too hard, which will run up your utility bill and cause extra wear and tear on the system. You could also spread moisture and mold throughout your house. Turn off the AC, remove the wet filter, and check for cracks or clogs. Fix the problem (with a pro’s help, if you need it), and put a dry filter in place before you turn the system back on.

An HVAC unit, like a furnace, air conditioner, or heat pump, produces warm or hot air. The air ducts serve as the passages to help heat or cool air from the HVAC unit flow through the home. Air ducts are just one part of the overall HVAC system.

If your HVAC system's capacity doesn't match the required CFM (Cubic Feet per Minute), imbalances can occur. An undersized system struggles to maintain desired temperatures, leading to discomfort. An oversized system might short-cycle, wasting energy and causing temperature fluctuations. Properly matching capacity to CFM ensures efficient and consistent heating, cooling, and home ventilation system performance.

The standard HVAC warranty is around five years. Still, many brands offer an extension to 10 years if you register the product within a specific timeframe, typically 60 to 90 days post-purchase or HVAC installation. Over the past decade, warranty periods have substantially increased, shifting from 3-5 years in the 90s to the now-prevalent 10+ year warranties. Both warranty types cover parts failing due to manufacturer defects, incurring no additional costs. Some manufacturers provide extended warranties surpassing the usual 15- to 20-year window, though these often involve extra fees. 

The Johnstown, CO homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

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