
Serving Baltimore, MD and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
"They did a wonderful job for me when I needed the coil on my AC unit replaced. On time, Neat and tidy. Good work."





+8


Serving Baltimore, MD and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
"They did a wonderful job for me when I needed the coil on my AC unit replaced. On time, Neat and tidy. Good work."





+8

Serving Baltimore, MD and surrounding areas
Approved
In business since 1971
Free estimates
Warranties offered
"The technician was extremely thorough. Replace the thermostat batteries and furnace filter (I provided the parts), checked for any carbon monoxide leaks, checked the condition of furnace components, and found some bare wires that he taped up."




Serving Baltimore, MD and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"My air conditioning uni broke down during the heat wave (Wednesday, July 15th). I had no air for 4 days. Addis HVAC called me immediately after I requested service on Home Advisor (that was Thursday). The appointment was on a Friday, the price was right so we scheduled the installation to replace my HVAC system for Saturday. Adugna and his crew arrived promply Saturday morning, replaced my system and I had air by Saturday evening. Excellent service, the crew wore masks, gloves and foot coverings. I highly recommend this company."

Serving Baltimore, MD and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"I like to research before choosing. I received 4 quotes for the job and Nick Buric was the only one that listened to our needs and created an option that was perfect for the space...as well as being at a reasonable cost. They did a really great job installing a slim "ducted" mini-split unit in a small concealed ceiling space in my basement. The unit is completely hidden and uses ducts & vents to provide efficient heat and AC in our basement -- it is super quiet too. These guys are real pros and did what was right & needed to best suit the house versus what would have been easiest for them -- the other firms I talked to didn't want to touch the job (quoted a traditional concealed mini-split mounted on the wall instead) but Nick had a vision and his team did it all to perfection. I will definitely use them again in the future and recommend to my friends and neighbors."


Serving Baltimore, MD and surrounding areas
Approved
In business since 1978
Free estimates
Credit card accepted
When looking for professional HVAC services, look no further than GLM Mechanical Services, Inc. \nWhat we offer is honest, open estimating, with strict attention to detail and on time delivery. All we ask is when calling PLEASE speak english. WE can't help you if we can't understand what you need to tell us. Unfortunately, we do not offer attic installations when outdoor temperatures are so hot that attic temperatures can reach 100 degrees or higher. We cannot ask our employees to work under those conditions. We can bring to the table a level of expertise not usually available to residential projects. We have several years experience providing prompt and reliable services building your dreams into reality. We will always meet and exceed all expectations. Proudly handling the Goodman and Airtemp brands of HVAC equipment. Give us a call, you will be glad you did.\n\nWe now accept Visa, Mastercard, & Discover.

Serving Baltimore, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2009
Emergency services offered
Warranties offered
"Doug at Bamford came on time and had the water heater installed without any problems. Smooth service from start to finish.
"





+2

Serving Baltimore, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2010
Free estimates
Emergency services offered
"I am happy to write this review about JDL HVAC Services LLC. From start to finish; Amber, who setup my initial appointment was very nice & professional. Ire, the technical associate was prompt, very knowledgeable and got my system working again with a temporary fix. I opted for a new heating unit (which was reasonably priced) and all of the technical associates were easy-going and very professional. They were organized, used protective foot coverings and protective coverings for my floors, and cleaned up after the job. Special thanks to the entire team led by Armando; Jerel, Fernando, Michael, & Conrad. NOW, thanks to JDL HVAC, I FINALLY have a properly installed & functioning heating/air conditioning unit. I highly recommend this company!"





+118

Serving Baltimore, 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."


Serving Baltimore, MD and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"Changed the brand of heat pump to be installed 24 hours before installation with no prior notice."





+5

Serving Baltimore, MD and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"The Service Technician was very professional and explained things. I signed a service agreement with the company for our two-zone system. So far so good. Our furnaces were serviced."





+3
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.
From average costs to expert advice, get all the answers you need to get your job done.

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