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Find Furnace / forced air heating system install or replace pros in Gaithersburg

Avatar for Presidential Heating & Air Conditioning
Presidential Heating & Air Conditioning
4.6(
455
)
Electric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+43 more

Serving Gaithersburg, MD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1982

Free estimates

Emergency services offered

"Our old furnace recently failed. Marc came to our house the next day after I called and gave us a very reasonable estimate for replacement. Alex and the team did a good job in installing the new furnace and air conditioner. Many thanks to Presidential Heating & Air Conditioning, we did not have to suffer in the cold for too long."
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+6

20 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for McCrea Heating & Air Conditioning Services of MD
McCrea Heating & Air Conditioning Services of MD
4.5(
318
)
Electric Furnace / Forced Air Heating System - InstallDuctless Mini-split Heating System - Install or ReplaceDucts & Vents - Install or Replace+18 more

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"I couldn't be happier with the service I received from McCrea Heating and Air Conditioning Services of Maryland. Upon returning from vacation on a 100 degree July day, I found my old HVAC system basically dead (90 degrees in my kitchen!) ... Shane immediately came out to provide an estimate, we signed a contract on the spot, and he kindly provided some freon to hold me over until the new system could be installed. Brian and Nick showed up exactly on time to install the unit, used drop cloths to protect my flooring, and were exceedingly polite and professional throughout. I'd highly recommend this organization."
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12 neighbors recently requested a quote
Recommended by87%of homeowners
Markool Heating & Cooling, LLC
4.7(
21
)
Electric Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install - For BusinessElectric Furnace / Forced Air Heating System - Repair+18 more

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Woke up this morning to my hvac leaking and contacted Markool. I have never used them before and was in a pinch. They fit me right in this morning and were out at my house within 2 hours. The tech stepped in the door and placed covers for his shoes so he did not track in any dirt which was impressive! The tech was very professional and super friendly. Problem was diagnosed and FIXED within an hour. The price was extremely reasonable to the point I was shocked in a good way (expecting a higher price). Anyways, I will most certainly be a returning customer. Thank you Markool Heating Cooling Plumbing."
Response time7 hrs
4 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.3(
103
)
Electric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - InstallOil Furnace / Forced Air Heating System - Install+43 more

Serving Gaithersburg, MD and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"It was a superb experience. From the visit by Bruce the sales representative to the installation day to the follow-up from Petro, every single person we interacted with was helpful and professional. When Bruce arrived to do the assessment, we spent time going over the heating needs in the house. After a thorough inspection and measurement of the house, we sat down. He showed me a few options, all of which were going to provide good service. I ordered a unit at the end of that meeting. The installation day was just terrific- the entire work crew that showed up were everything I would hope to find: Upbeat, informative, hard-working, focused. The job was finished before end of day as promised. The heater room is now immaculate, with new piping and a new heater. It was like watching a pit crew at a NASCAR race. Everyone had their tasks, they moved carefully but quickly. The materials were all laid out in order, etc. Just a totally professional approach to their work. The crew boss answered any questions I had. The follow-up for a normal inspection of the furnace chimney was scheduled the day after the installation. I’ve gotten calls to insure we are satisfied with the work. Satisfied barely covers it- I am pleased to write this kind of review. Without hesitation I will recommend Petro to friends and family throughout the Philly area. Peter A. Elkins Park"
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Response time6 days
Response rate100%
18 neighbors recently requested a quote
Avatar for BlueStar Air Mechanical Inc.
BlueStar Air Mechanical Inc.
4.9(
32
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+43 more

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Very well. Technician, John, was patient and thorough as he cleaned and took readings of the systems. He took the time to walk me through the maintenance and care that I need to take care of the Heating and water heater systems of my newly acquired condo in Fairfax County Virginia."
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+13

Response time3 hrs
Response rate100%
2 neighbors recently requested a quote
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 Gaithersburg, 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
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FAQs for furnace / forced air heating system install or replace projects in Gaithersburg, 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 Gaithersburg, 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.