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

Markool Heating & Cooling, LLC
4.7(
21
)
Gas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Install+18 more

Serving Barnesville, MD and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Markool was super professional, kind, and skillful. A few things really stood out. 1) He did a furnace flue piper install that he could have charged us much more for if he had wanted to take advantage of us - but he was honest and we paid less than we feared. He also went the extra mile helping my wife and I through a warranty claim with the furnace company so that we did not have to pay extra part costs. It was an unexpected need, but he was prepared with the part and worked with the manufacturer to get us covered. He was even able to better a previous repair. 2) On a home humidifier install, he made himself available on short notice, took time to answer our questions, and then showed us how to maintain the equipment ourselves so we wouldn't need to shelve out more for additional contracting work - even from him. Grateful!"
Response time7 hrs
5 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for ARS of Maryland
ARS of Maryland
4.2(
183
)
Gas Furnace / Forced Air Heating System - InstallHeat Pump - Install or ReplaceElectric Furnace / Forced Air Heating System - Install+3 more

Serving Barnesville, MD and surrounding areas

Approved (Corporate)

In business since 1945

Free estimates

Emergency services offered

"I had a high efficacy heat pump system installed by ARS 11/2 ago. I am used to gas furnace so understanding how heat pump works is an education. The mechanic was very patient in explaining how it works and what to look for if there is an issue. Of course this cold season a got an high unexpected bill from the electric company and was baffled because of the amount I spent on this high efficiency unit. They came out looked at and found no issue. They explained this was a very unusual cold season and the unit performed accordingly for sub freezing condition. They did leave a card and said if I see anytjing that look unusual please give them a call asap. The mechanic was very knowledgeable."
New System Installation
140 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Simply Home Service, LLC
Simply Home Service, LLC
5.0(
30
)
Electric Furnace / Forced Air Heating System - RepairGas Boiler or Radiator Heating System - RepairGas Furnace / Forced Air Heating System - Repair+4 more

Serving Barnesville, MD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"From the beginning - Sean was extremely responsive to all of our questions and very flexible with scheduling the service. He installed our new humidifier on the furnace, provided instructions on how to operate it, and offered multiple tips for keeping the system running efficiently. He also offered a very fair price. He was very professional, and we would definitely hire him again!!"
Response time3 hrs
Response rate97%
Recommended by93%of homeowners
Avatar for Beacon Home Services, Inc.
Beacon Home Services, Inc.
4.6(
2,062
)
Electric Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Install+5 more

Serving Barnesville, MD and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

Beacon Home Services provides heating, air conditioning, plumbing, and electrical services throughout Northern Virginia and Montgomery County, Maryland. We’ve served local homeowners for more than 20 years, including in Prince William, Fairfax, Loudoun, and Arlington counties.\n\nWhether your heat goes out, your AC stops cooling, or you need help with a plumbing or electrical problem, we’re here to help. Beacon Home Services is fully licensed and insured.\n\nBeacon proudly installs Carrier heating and air conditioning products.\n\nWe’re proud of our excellent Google rating and A+ BBB rating. If you’re looking for a local team you can count on for heating, air conditioning, plumbing, or electrical service, give Beacon Home Services a call.

2 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Tetteris HVAC
Tetteris HVAC
4.7(
192
)
Gas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - RepairHeat Pump - Install or Replace+3 more

Serving Barnesville, MD and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"All went very well! They were very responsive to my inquiry. I had anticipated a few days before anyone would come out due to the heatwave we were experiencing, however, to my surprise they came out the very next day as promised. I even had asked for them to install a replacement thermostat which they did as well."
Additional Photos
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11 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Hecomo
Hecomo
5.0(
11
)
Gas Furnace / Forced Air Heating System - RepairDuctless Mini-split Heating System - Install or ReplaceDucts & Vents - Install or Replace+5 more

Serving Barnesville, MD and surrounding areas

Approved

Credit card accepted

Customers say: True professional

"I had the best experience with Hecomo Heating & Cooling. My house's AC/heating system stopped working all of the sudden and the temperatures at the time were 90 degrees and up. I was desperate looking into many different companies. Many of them, came over to my house and did estimates at ridiculously high prices. Luckily, I found Hecomo. They came to my house, did an estimate and were ready to install my AC/heating unit very quickly and at a good price. Also, the customer service was great. They were there for me throughout the whole process. They explained to me everything that I needed to know about the system and the features. Everything is very modern and updated. I am very happy I found Hecomo."
Heating & A/C Project
Heating & A/C Project
Additional Photos
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+8

Response time8 hrs
Response rate100%
7 neighbors recently requested a quote
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FAQs for furnace / forced air heating system install or replace projects in Barnesville, MD

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 Barnesville, MD 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.