Top-rated heating and air conditioning pros.

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

Enter your zip and get matched with up to 5 pros

TRUSTED BY THORNTON, CO HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1k+
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Thornton

Avatar for Mountain Pro HVAC Services, LLC

Mountain Pro HVAC Services, LLC

4.98(
123
)
Approved Pro

Mountain Pro HVAC Services, LLC

4.98(
123
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

We are a locally owned heating and air conditioning business out of Aurora Colorado. We provide services for both home owners and commercial clients all around the Denver metro area. Our crew of professionals strive to bring top notch services and solid solutions to our customers with no pressure for sales. The business is owned and operated by Adrian Vargas who served in the US Marines and battled on the front lines in Iraq and Afghanistan. You can rely on Mountain Pro HVAC Services to meet all your Heating and Cooling needs!

"Timely help with our furnace. Adrian went above and beyond ensuring our furnace was not only fixed but operating efficiently- offering alternative suggestions to improve efficiency and save us money in the long run in the winter and summer months. Highly recommend!"

Jessica N on January 2025

We are a locally owned heating and air conditioning business out of Aurora Colorado. We provide services for both home owners and commercial clients all around the Denver metro area. Our crew of professionals strive to bring top notch services and solid solutions to our customers with no pressure for sales. The business is owned and operated by Adrian Vargas who served in the US Marines and battled on the front lines in Iraq and Afghanistan. You can rely on Mountain Pro HVAC Services to meet all your Heating and Cooling needs!

"Timely help with our furnace. Adrian went above and beyond ensuring our furnace was not only fixed but operating efficiently- offering alternative suggestions to improve efficiency and save us money in the long run in the winter and summer months. Highly recommend!"

Jessica N on January 2025


Avatar for Lous Heating and Cooling LLC

Lous Heating and Cooling LLC

4.98(
65
)
Approved Pro

Lous Heating and Cooling LLC

4.98(
65
)
Approved Pro
Super Service Award
Customers say: True professional
6 years of experience
Free onsite estimate

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.

"On time, very friendly, quick work. "

Seth G on October 2025

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.

"On time, very friendly, quick work. "

Seth G on October 2025


Avatar for Dude Dryer Vent Cleaning, LLC

Dude Dryer Vent Cleaning, LLC

4.98(
86
)
Approved Pro

Dude Dryer Vent Cleaning, LLC

4.98(
86
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
21 years of experience

At Dude Dryer Vent Cleaning, LLC, your safety and comfort come first. We are a Veteran-Owned Small Business (VOSB) built on the belief that our customers’ needs are our highest priority. Every home and business we serve receives the same level of professionalism, reliability, and attention to detail that defined our military service. Our team is Chimney Safety Institute of America (CSIA)–certified Dryer Exhaust Technicians (C-DET), trained to handle everything from routine cleanings to complex multi-story and commercial systems. No job is too big or too small — we show up prepared, respectful, and focused on doing the job right. We welcome the opportunity to earn your trust and deliver the best dryer-vent cleaning service in the region. Call to schedule your appointment: 📍 Denver Metro: 720-298-1629 📍 Las Vegas: 702-498-0111 🌐 www.DudeDryerVent.com

"Kevin did a great job in cleaning out our dryer vent (very long). He is very polite, professional. Upon completion, he cleaned, vacuumed and wiped down any trace of dust or lint on the floor and outside under the vent. Highly recommend! "

Deb S on September 2025

At Dude Dryer Vent Cleaning, LLC, your safety and comfort come first. We are a Veteran-Owned Small Business (VOSB) built on the belief that our customers’ needs are our highest priority. Every home and business we serve receives the same level of professionalism, reliability, and attention to detail that defined our military service. Our team is Chimney Safety Institute of America (CSIA)–certified Dryer Exhaust Technicians (C-DET), trained to handle everything from routine cleanings to complex multi-story and commercial systems. No job is too big or too small — we show up prepared, respectful, and focused on doing the job right. We welcome the opportunity to earn your trust and deliver the best dryer-vent cleaning service in the region. Call to schedule your appointment: 📍 Denver Metro: 720-298-1629 📍 Las Vegas: 702-498-0111 🌐 www.DudeDryerVent.com

"Kevin did a great job in cleaning out our dryer vent (very long). He is very polite, professional. Upon completion, he cleaned, vacuumed and wiped down any trace of dust or lint on the floor and outside under the vent. Highly recommend! "

Deb S on September 2025


Avatar for Steven & Sons Heating and Cooling

Steven & Sons Heating and Cooling

4.87(
112
)
Approved Pro

Steven & Sons Heating and Cooling

4.87(
112
)
Approved Pro
Customers say: Quality work
11 years of experience
Free onsite estimate

Steven & Sons Heating and Cooling does any job big or small. We take pride in our work our goal is to keep every customer happy. We keep our prices low and our quality of work high.. The list goes on. We offer free estimates and will be happy to sit down with you to talk about the job on hand. We look forward to servicing your needs. Call us for an estimate today!

"My experience with Steven and Sons company was as positive as it gets. I had a faulty furnace in the middle of the winter with a newborn at home. Mariano was quick to respond and provided transparent and very competitive pricing. I would 100% recommend Steven&Sons."

Nelson S on June 2025

Steven & Sons Heating and Cooling does any job big or small. We take pride in our work our goal is to keep every customer happy. We keep our prices low and our quality of work high.. The list goes on. We offer free estimates and will be happy to sit down with you to talk about the job on hand. We look forward to servicing your needs. Call us for an estimate today!

"My experience with Steven and Sons company was as positive as it gets. I had a faulty furnace in the middle of the winter with a newborn at home. Mariano was quick to respond and provided transparent and very competitive pricing. I would 100% recommend Steven&Sons."

Nelson S on June 2025


A-Moonlight Heating & Air Conditioning

4.96(
50
)
Approved Pro

A-Moonlight Heating & Air Conditioning

4.96(
50
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
12 years of experience

At A-Moonlight Heating & Air Conditioning, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent and complete customer satisfaction from start to completion of a project. Call us today to learn more!

"They were great!!!"

Cynthia C on February 2025

At A-Moonlight Heating & Air Conditioning, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent and complete customer satisfaction from start to completion of a project. Call us today to learn more!

"They were great!!!"

Cynthia C on February 2025


Avatar for Flatirons Plumbing, Inc.

Flatirons Plumbing, Inc.

4.91(
227
)
Approved Pro

Flatirons Plumbing, Inc.

4.91(
227
)
Approved Pro
Super Service Award
Customers say: Super punctual
11 years of experience
Free onsite estimate

Flatirons Plumbing is a family owned and operated plumbing company serving the Denver Metro Area. We provide custom water filtration and water treatment solutions for your home, with your family in mind. Even the fresh Rocky Mountain water we drink here in Colorado contains harsh substances; give us a call today at (720) 630-1784 for a custom water treatment filtration system for your home!

"Was available to come out same day I called for service. Very friendly and helpful. Got the job done."

Paula W on December 2025

Flatirons Plumbing is a family owned and operated plumbing company serving the Denver Metro Area. We provide custom water filtration and water treatment solutions for your home, with your family in mind. Even the fresh Rocky Mountain water we drink here in Colorado contains harsh substances; give us a call today at (720) 630-1784 for a custom water treatment filtration system for your home!

"Was available to come out same day I called for service. Very friendly and helpful. Got the job done."

Paula W on December 2025


Avatar for Behold Heating & Cooling Services

Behold Heating & Cooling Services

4.94(
36
)
Approved Pro

Behold Heating & Cooling Services

4.94(
36
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
3 years of experience

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".

"Chris and his team were great. They cared enough to put on shoe covers while walking in my home. Chris was very informative about the humidifier installation process. Thanks"

Joann J on December 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".

"Chris and his team were great. They cared enough to put on shoe covers while walking in my home. Chris was very informative about the humidifier installation process. Thanks"

Joann J on December 2025


Avatar for Behold Heating & Cooling Services

Behold Heating & Cooling Services

4.98(
32
)
Approved Pro

Behold Heating & Cooling Services

4.98(
32
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
3 years of experience

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!

"Highly recommended and I will be calling next time I need help. My heater wasn't heating so I called around. Dylan was able to come straight over, less than 2 hours after I called the house was warm. Luckily it was a simple fix, no parts needed (a spider had built it's web in there), so the whole repair was covered under the $89 service fee. Dylan was respectful of me and of my home. AND he told me they work on swamp coolers, which is sort of hard to find these days."

Samantha S on October 2025

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!

"Highly recommended and I will be calling next time I need help. My heater wasn't heating so I called around. Dylan was able to come straight over, less than 2 hours after I called the house was warm. Luckily it was a simple fix, no parts needed (a spider had built it's web in there), so the whole repair was covered under the $89 service fee. Dylan was respectful of me and of my home. AND he told me they work on swamp coolers, which is sort of hard to find these days."

Samantha S on October 2025


Avatar for Applewood Plumbing Heating & Electric

Applewood Plumbing Heating & Electric

4.87(
573
)
Approved Pro

Applewood Plumbing Heating & Electric

4.87(
573
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
53 years of experience

We have been proudly serving Denver, Boulder and the surrounding metro areas for over 50 years! At Applewood EVERY technician is licensed, background checked & drug tested. When using Applewood, customers receive a picture and short bio of the technician dispatched to their home. We will fix your problem RIGHT, the first time, at an approved, up-front price. After your appointment, we follow up with a phone call to make sure your appointment went just as you expected. We are open 6AM to 10PM, 7 days a week to serve you at your convenience with NO OVERTIME CHARGES.

"Fast effective!!"

Jennifer R on December 2025

We have been proudly serving Denver, Boulder and the surrounding metro areas for over 50 years! At Applewood EVERY technician is licensed, background checked & drug tested. When using Applewood, customers receive a picture and short bio of the technician dispatched to their home. We will fix your problem RIGHT, the first time, at an approved, up-front price. After your appointment, we follow up with a phone call to make sure your appointment went just as you expected. We are open 6AM to 10PM, 7 days a week to serve you at your convenience with NO OVERTIME CHARGES.

"Fast effective!!"

Jennifer R on December 2025


Avatar for Heart Heating, Cooling, Plumbing & Electric

Heart Heating, Cooling, Plumbing & Electric

4.77(
77
)
Approved Pro

Heart Heating, Cooling, Plumbing & Electric

4.77(
77
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
7 years of experience

Heart Heating, Cooling, Plumbing & Electric is your trusted, full-service home comfort provider for HVAC, plumbing, and electrical services. As a premier dealer, we’re committed to delivering high-quality workmanship, reliable solutions, and an exceptional customer experience on every job. Our team of highly trained, licensed professionals takes a customer-first approach—providing clear communication, honest recommendations, and solutions tailored to your home’s needs. Whether it’s a repair, installation, or full system replacement, we focus on doing the job right the first time. What truly sets Heart apart is our Lifetime Warranty on Parts and Labor, giving homeowners unmatched peace of mind long after the work is complete. With 2,600+ five-star Google reviews, our reputation is built on trust, consistency, and care. If you’re looking for dependable home service backed by experience, accountability, and long-term protection, Heart is here for you.

"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 is your trusted, full-service home comfort provider for HVAC, plumbing, and electrical services. As a premier dealer, we’re committed to delivering high-quality workmanship, reliable solutions, and an exceptional customer experience on every job. Our team of highly trained, licensed professionals takes a customer-first approach—providing clear communication, honest recommendations, and solutions tailored to your home’s needs. Whether it’s a repair, installation, or full system replacement, we focus on doing the job right the first time. What truly sets Heart apart is our Lifetime Warranty on Parts and Labor, giving homeowners unmatched peace of mind long after the work is complete. With 2,600+ five-star Google reviews, our reputation is built on trust, consistency, and care. If you’re looking for dependable home service backed by experience, accountability, and long-term protection, Heart is here for you.

"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

...
Showing 1-10 of 2055
Heating and Air Conditioning questions, answered by experts

Yes, a dirty air filter can cause a higher electric bill. That’s because clogged filters make it harder for air to flow through your HVAC system, which forces it to work harder and use more energy. According to the U.S. Department of Energy, replacing dirty filters can save you between 5% and 15% in utility costs.

While 72 degrees is a comfortable setting for many people, it’s likely not the most efficient temperature setting for your air conditioning unit. By pushing the temperature up to 75 or 78 degrees, you stand to save money on your energy bill. That said, these temperatures may be too warm to be comfortable for some people and are definitely too warm for most people to sleep comfortably.

Look up your model number online to find additional information. Usually, you can just take a look at the old filter and find the brand name and dimensions to order a new one. When replacing the filter, always check that it’s pointed the right way to match the direction of your airflow. Many filters have arrows on them to help with this step.

No. Evaporator coils are designed to work with specific refrigerant types, and they are rated by what kinds of refrigerant they use. It’s indicated with an “R” code. It’s important to match your evaporator coil and refrigerant or your system will not work properly. An AC technician can tell you what type of refrigerant your system needs and what evaporator coils will work with it.

Mini-split air conditioners are less expensive to run than central air and are considerably more energy efficient. You can run the heating or cooling units in individual rooms and turn off the units in the rooms you aren’t using. This method allows you to save about 30% off your energy bill compared to a ducted system.

The Thornton, 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.

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"