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Avatar for Thermal Mechanics
Thermal Mechanics
5.0(
6
)

Serving Jefferson, CO and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of HVAC services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

Full system install
13 neighbors recently requested a quote
K&G builder’s
New to Angi

Serving Jefferson, CO and surrounding areas

Approved

We provide complete HVAC solutions for both residential and commercial projects throughout Denver and all of Colorado.\n\nWe specialize in the installation, maintenance, and repair of:\n✔ Central air conditioning systems\n✔ Mini split systems\n✔ Furnaces (heating systems)\n✔ Full HVAC systems\n\nOur team is committed to delivering accurate diagnostics, efficient solutions, and high-quality workmanship on every job. Whether it’s a small residential service or a large commercial project, we have the experience and capability to get the job done right the first time.\n\nWe focus on comfort, energy efficiency, and long-term system performance, adapting every installation to meet Colorado’s climate demands.\n\n✔ Residential & Commercial Work\n✔ Reliable and Professional Service\n✔ Fast and Efficient Response\n\n📍 Serving Denver and all of Colorado\n📞 Free estimates available\n

Avatar for The Duct Doctor Of Denver LLC
The Duct Doctor Of Denver LLC
New to Angi

Serving Jefferson, CO and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Welcome to our duct cleaning and indoor air quality service! Founded by a passionate professional from the medical field, At The Duct Doctor Of Denver we understand the crucial link between air quality and your health. Our mission is to provide top-notch services at affordable prices, ensuring that everyone can breathe easier without breaking the bank. Trust us to put your health first with reliable and affordable high-quality solutions.

Avatar for Electrical Innovations LLC
Electrical Innovations LLC
New to Angi

Serving Jefferson, CO and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Electrical innovations provides electrical safety for families homes, and peoples businesses. We are a fully licensed and insured company who’s been in business since 2010. We are a family owned and operated business who strives for making families happy and satisfied returning customers.

Avatar for Grand Hands Home Services
Grand Hands Home Services
New to Angi

Serving Jefferson, CO and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

With over 15 years of experience in the home service industry and 10 years as a licensed plumber, I bring knowledge, skill, and reliability to every job. I’ve worked on everything from simple repairs and fixture installations to full plumbing system replacements and complex troubleshooting.\n\nAs a licensed professional, I understand the importance of doing the job right the first time—safely, efficiently, and up to code. I take pride in providing honest assessments, clear communication, and high-quality workmanship that homeowners can trust.\n\nMy goal is simple: deliver dependable service, lasting solutions, and a great customer experience on every visit. Whether it’s a small repair or a major plumbing project, you can count on professionalism, attention to detail, and results built to last.

Avatar for Comfort By Design
Comfort By Design
4.8(
42
)

Serving Jefferson, CO and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Comfort by Design did a fantastic job with my water heater from start to finish. When I called, the receptionist was highly knowledgeable about scheduling and pricing, and she was quite willing to let me call other places since I was researching price and availability. I ended up sticking with Comfort by Design largely because the receptionist was not pushy, listened well to me, and had technicians available that day. I like hiring companies with whose employees listen to me and work with me to solve a problem, as opposed to pressuring me to choose them or to buy more than I'm comfortable with. My initial interaction with Comfort by Design met those criteria. A technician arrived within the time-frame I was quoted, and he had the part I thought was broken on my water heater. After diagnosing the issue, though, he discovered that there was at least one other broken/malfunctioning part that needed to be replaced. He showed me the problem and explained the process of replacing it. After discussing my options with the technician, I decided to replace the water heater. At no point did I feel pressured into making that decision. The best surprise of the day was that Comfort by Design was able to replace the water heater immediately. Another technician was available to immediately bring the water heater, and the two techs worked together to install the new one and remove the old one. They also carted the old one away. Before leaving, they patiently answered several other questions I had, and they explained and scheduled the necessary inspection of their installation. They did a great job respecting my property while moving the large water heaters, and they did a great job cleaning up after themselves. Finally, the cost was reasonable and about what I expected to pay. Custom by Design is definitely going to be the first place I call should I have any plumbing or HVAC (they also do HVAC!) needs in the future."
Mini Split Install
A/C Install
Before
Furnace Install
Mini Split Install

+16

Response time10 hrs
Response rate100%
Recommended by89%of homeowners
ACH Heating and Air
4.6(
32
)

Serving Jefferson, CO and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"Greg and Sean acted very fast, due to our situation. Our furnace died, and we needed it to be taken out, and then install a new dual stage Bryant furnace. They put me in front of a few jobs. I truly appreciated the fantastic value I received, them both being up front with me, and the unique ability to be on time coming up the mountain way. I will always recommend them, as well as use them if need be, in the future. Tremendous deal!!!"
Furnace change
Response time8 hrs
Recommended by96%of homeowners
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Heating and Air Conditioning questions, answered by experts

A dirty AC filter can lower the efficiency of your system, so depending on how dirty it was, you may notice a temperature difference when you clean your filter. You can try other solutions if your AC isn’t blowing as cold as it used to. You can call in a local HVAC tech to make sure everything is running correctly, fix your air seal if it’s a window unit, and clean your coils.

You should plan to change your AC unit's filter every one to three months, depending on the manufacturer's recommendations. You should also clean the coils at least once per year, but if you have pets or someone in your household has allergies, you might need to clean them more often. Fortunately, many pros will clean the coils and change the filter for you during an inspection, which you should schedule once or twice per year.

Yes, scorpions can enter a home through AC vents, especially if the system is not well-sealed. As excellent climbers, they can scale a home's exterior and squeeze through gaps as small as 1/16 of an inch. Scorpions are often attracted to the moisture around air conditioning ducts or seek cooler areas during hot weather, using vents as a pathway inside. They may slip through small openings where the duct meets the vent cover and travel within walls before emerging. To prevent this, inspect your vents, seal any gaps, and consider installing fine mesh screens.

As mentioned above, not all HVAC Schrader valves are necessarily the same. While the valve core and pin or spring size on Schrader valves used for HVAC are generally similar, the valves are not all universal and interchangeable. The size of Schrader valves varies depending on whether it's used in an air conditioner, bicycle tire, or motor vehicle tire.

NATE (North American Technician Excellence) certification is not legally required for HVAC technicians in most areas, but hiring a professional with this certification is highly recommended. NATE-certified technicians demonstrated their expertise and proficiency in different types of HVAC systems, offering assurance of quality service. It's a voluntary certification, yet it indicates a commitment to professionalism and ongoing training. Choosing a NATE-certified technician often means you're working with someone who is up-to-date on industry standards and best practices, which can lead to better service, energy efficiency, and long-term cost savings.

The Jefferson, 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.