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Avatar for Thermal Mechanics
Thermal Mechanics
5.0(
6
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+23 more

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
10 neighbors recently requested a quote
K&G builder’s
New to Angi
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+24 more

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
Air Ducts & Vents - Clean

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
Thermostat - Install or Replace

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
Air Ducts & Vents - CleanElectric Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - Repair+4 more

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
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 more

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
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Heating and Air Conditioning questions, answered by experts

To diagnose a bad HVAC or AC damper, assess the airflow from your vents. For a manual damper, close it, run your system, and check for airflow. If air is still coming through the vents, the damper is likely faulty and needs repair or replacement. For an automatic damper, turn on your HVAC system and monitor the airflow and room temperature. Signs of a problem include low airflow, a room that won't maintain its set temperature, or a drafty feeling. If you suspect a faulty automatic damper, you may need to hire a professional for repairs.

Your heating and cooling systems cost you the most on your electric bill and make up 50% of your bill on average. Your washing machine, dryer, oven, and stove contribute significantly to your electric bill as well. Lights, fans, and smaller electronics add up, but aren’t the biggest energy consumers. You can reduce your power usage by setting optimal temperatures on your thermostat and investing in energy-efficient appliances.

A non-maintained AC is more likely to perform poorly, increase your energy bills, and undergo more severe issues like breakage and water damage. That’s why DIY cleaning or professional maintenance is recommended annually. Otherwise, you might end up paying more in the end than you would for annual service. You can purchase cheap AC cleaning kits if you prefer going the DIY route.

The American Society of Heating, Refrigerating, and Air-Conditioning Engineers, or ASHRAE, sets the standard guidelines for air changes per hour in homes and businesses. The International Residential Code, or IRC, also sets ACH requirements for residences and bases those requirements off of ASHRAE standards plus climate specifics related to your location.

You should know the main components of an air conditioner: the condenser coils, evaporator coils, drip pan, AC filter, ducts, and refrigerant. Each part plays a key role in the performance and safety of your AC system. When tracking the source of AC issues or odors, it helps to know where to look. Your outdoor unit houses your condenser coils, fan, and compressor. Your indoor unit houses your evaporator coils, drain lines, and filter, and it connects to your ductwork. 

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.