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Top-Rated Furnace / forced air heating system install or replace pros in Fort Collins - Updated Nov 2026

Avatar for Your Comfort Heating and Cooling
Your Comfort Heating and Cooling
5.0(
19
)
Ducts & Vents - Install or ReplaceGas Boiler or Radiator Heating System - RepairGas Furnace / Forced Air Heating System - Repair+7 more

Serving Fort Collins, CO and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"They were very professional and prompt when installing new furnace in the middle of winter. Dean listens to the customer and discusses all options. We called a year later to install AC on furnace and he remembered us and our furnace . Dean is very personable and professional."
New Amana Furnace
New Amana Heat Pump
High Efficiency
Outside Condensers
two new condensers

+3

Response time2 hrs
Response rate98%
18 neighbors recently requested a quote
Avatar for 1st Action Plumbing Heating and Air, Inc.
1st Action Plumbing Heating and Air, Inc.
4.6(
153
)
Ductless Mini-split Heating System - Install or ReplaceElectric Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install - For Business+6 more

Serving Fort Collins, CO and surrounding areas

Approved

In business since 2017

Free estimates

Small jobs welcome

"We had 1st Action Plumbing, Heating & Air Inc install a new furnace and A/C system in our home about three years ago, and we couldn’t be happier with it! The system has worked amazingly well and has been reliable ever since. We had a great experience with the installation and would definitely recommend 1st Action to anyone looking for quality HVAC work and a company they can trust!"
Navien Tankless
Lennox EL296V
Response time5 hrs
6 neighbors recently requested a quote
Recommended by90%of homeowners
Husky Services, LLC
4.6(
61
)
Gas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair - For Business

Serving Fort Collins, CO and surrounding areas

Approved

In business since 2011

Customers say: Super punctual

Since 2011, Husky Services LLC has been providing HVAC services to homes and businesses and government offices throughout the Colorado West Range. Our residential and commercial HVAC division services include air conditioning repair and installation, heating repair and installation. \nSo whether you want convert your electric heating system to gas or install an energy-saving programmable thermostat, Husky Services LLC is ready to help you stay comfortable and save on energy costs. There is no job too big or too small that we can't handle! \nWhen you have a problem with your heating or your air conditioning, you don?t want to wait a week to get it fixed. So, whether you're building a new home or upgrading your existing appliances to energy-efficient heating and cooling systems, contact Husky Services LLC today for a no-hassle quote on all your air conditioning, heating and air quality equipment needs. \n

3 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Heart Heating, Cooling, Plumbing & Electric
Heart Heating, Cooling, Plumbing & Electric
4.7(
92
)
Gas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install - For BusinessGas Furnace / Forced Air Heating System - Repair+5 more

Serving Fort Collins, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"We had an issue with our furnace popping a breaker. Roberto was sent out by Heart Heating & Air to investigate. Roberto did a thorough check of our HVAC system. Roberto concluded the issue was indeed electrical. He was not able to troubleshoot since he's not a certified electrician. However, while checking our system, he found the A/C drain in the furnace clogged with Miller Moths. Had he not discovered the clog, the system could have shut down due to an interlock that senses water backing up in the drain tube. Plus, he took the time to educate me on other aspects of our HVAC system. Greg, Heart's electrician, came up and fixed the issue the next morning. After he got done, he took the time to visit with us for a few minutes, telling us about his Mom, Grandma and upbringing in Puerto Rico. He had us in stitches, laughing about his experience being raised there and telling us about his dear Grandma. We also discussed Puerto Rican food, which we knew nothing about. We'll check it out after visiting with Roberto. Roberto knows his business, he's very professional and has a "GREAT" personality. He seemed like a longtime friend more so than a HVAC technician here for a job. We've had a lot of interaction with Heart after having a new A/C, furnace, humidifier, HEPA filter, electrostatic filter and whole house fan installed. The system as a whole is awesome and all the technicians we've had in our home for the installs and follow up have all been consummate professionals. All have been respectful of our home, wearing shoe covers as they come in the house and most of all, I can tell they all enjoy what they do. When you need HVAC, electrical work, or any other services Heart performs, check these guys out. You won't be sorry."
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+24

8 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for Left Hand Thermal, LLC
Left Hand Thermal, LLC
5.0(
11
)
Gas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install - For BusinessGas Furnace / Forced Air Heating System - Repair+1 more

Serving Fort Collins, CO and surrounding areas

Approved

In business since 2010

Free estimates

Offers commercial services

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's custom 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.

Broomfield AC replacement
Broomfield AC replacement
AC replacement Frederick
AC replacement Frederick
3 neighbors recently requested a quote
Avatar for Woelfel Heating & Air Inc.
Woelfel Heating & Air Inc.
4.2(
153
)
Gas Furnace / Forced Air Heating System - RepairHeat Pump - Repair or Service

Serving Fort Collins, CO and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

We pride our company on reliability, great communication, integrity, and quality work. We are experts Woelfel Heating & Air is a trusted, family-owned HVAC company proudly serving Northern Colorado. We specialize in heating and air conditioning repair, installation, and maintenance for all major brands. Known for our honest pricing, dependable service, and personal approach, we help homeowners stay comfortable all year long. Whether you need a quick fix or a full system replacement, our experienced team is ready to help with prompt and professional service.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!

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+7

135 neighbors recently requested a quote
Recommended by75%of homeowners
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FAQs for furnace / forced air heating system install or replace projects in Fort Collins, CO

Converting from an oil furnace to an electric furnace isn't a simple swap—the oil system needs to be completely removed before installing the electric furnace. You'll need a full electric system installation, but you might be able to reuse existing ductwork if it's up to current safety standards. You’ll need to budget for a new electric furnace installation, which costs between $1,800 and $6,200, including professional removal, proper disposal, and safe installation of the new system.

Electric furnaces are 100% efficient at converting electricity into heat. However, some of that heat can be lost as it travels through your home's ductwork or escapes through poorly insulated areas. That's why regular duct maintenance and proper home insulation are important to maximize your furnace's efficiency and reduce heat loss, ensuring consistent warmth and lower energy costs.

With proper maintenance, an electric furnace can last anywhere from 20 to 30 years, outlasting the average gas furnace's lifespan of 15 to 20 years. To keep your electric furnace running efficiently, schedule regular cleanings, tighten connections, and have inspections done before winter arrives. With routine maintenance, you’ll ensure consistent, safe heating for years to come.

The size of the electric furnace you need depends on factors like your home's square footage, climate, and insulation quality. As a general guideline, those who live in warmer climates should multiply their square footage by 30 to 35 BTUs, while those in cooler areas should multiply it by 50 to 60 BTUs.

Consulting with an HVAC professional can help you determine the exact size that's right for your home.

An electric furnace works by converting electricity into heat using high-resistance heating elements. A blower then pushes the warm air through your home's ductwork, distributing heat evenly throughout your space. Since there's no combustion involved, electric furnaces eliminate the risks associated with gas furnaces and provide consistent, reliable heating when properly installed.

An electric furnace uses between 40 and 80 kilowatts per day to heat your home. The exact amount it uses depends on factors like your home's size, insulation, and overall energy requirements. Larger homes or those with poor insulation use more energy than smaller, well-insulated spaces. A professional furnace assessment can help confirm the ideal unit size for your needs.

The Fort Collins, CO homeowners’ guide to furnace / forced air heating system installs or replaces

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