
Serving Havre De Grace, 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 Havre De Grace, 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 Havre De Grace, MD and surrounding areas
Approved
In business since 2013
Free estimates
Warranties offered
"Prompt response and completed installing both the AC and heating systems in the same day. Answered all questions I had. Project was the best price I could find also. I'm very pleased with the job they did."

Serving Havre De Grace, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2009
Emergency services offered
Warranties offered
"Mr. Bamford is an amazing gem. We have hired him repeatedly for different projects, and he ALWAYS goes above and beyond. Whether it's working over 15 hours straight to make sure we had hot water for the next morning, pricing out all of the alternatives to get us the best deal, or just popping by when we call to check out the issue and see what it will take, his service is above any provider I've ever worked with. I highly recommend him, and am grateful for the excellent service he provides."





+2

Serving Havre De Grace, MD and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Had a full HVAC system installed including all new ductwork. Maurice and Tanner and Bob were super professional and very informative. Went above and beyond what was expected always stopping what they were doing to answer any questions we had. Jason Bowen was extremely polite and professional explained the whole system we were going to get and didn't try at all to upsell equipment, and didn't pressure us at all for the sale. W At your Service heating and cooling will be our go to for anything we ever need done!!!"





+1

Serving Havre De Grace, MD and surrounding areas
Approved
In business since 2001
Free estimates
Credit card accepted
"We had a couple of scheduling delays but everything was resolved. Jason worked so hard on resolving the delays and kept us in the communication loop. The technicians, Steve and Brandon, that installed the heat pump were incredible. They worked together like clockwork. It is a beautiful installation and is working beautifully."





+18

Serving Havre De Grace, MD and surrounding areas
Approved (Corporate)
In business since 1982
Free estimates
Emergency services offered
"We decided to replace our 16 year old AC and furnace as we wanted to prevent possible problems with our HVAC system. The heating consultant that they sent, Alex H, was very friendly and knowledgeable. He provided us with estimates for a number of options - similar to those from other HVAC companies that quoted for this work. A day later I received a call from Blue Dot offering a discount on that quote and we accepted that quote. Alex made the one and a half hour drive to visit with us again, to walk us through the contract details, and to explain install process. This was a really nice touch as usually contracts are signed electronically these days. The Blue Dot install team came on time on the scheduled day and did a neat and professional job with the install - performing all the necessary checks and tests, and left the work area clean and tidy - and with the HVAC systems working well. The whole purchase and install process couldn't have gone smoother. We are very happy with BlueDot and will certainly use them again preferentially for our HVAC needs."


Serving Havre De Grace, MD and surrounding areas
Approved
In business since 2000
Free estimates
Credit card accepted
"Great service all around! I needed a full swap, both a/c and furnace. They were great right from scheduling! They worked with me on financing which was a blessing. You can tell they care about the quality of their work and went above and beyond in every way!"

Serving Havre De Grace, MD and surrounding areas
Approved
Super Service Award Winner
In business since 1999
Free estimates
Emergency services offered
"Sunday 6/22 my mom's air conditioner was struggling. We called Aireserv who set up for their tech Bryson Bean to come out to mom's house. From the bright greeting smile as he introduced himself to the going over everything he was very professional and patient with all my questions. Highly recommend Aireserv for any of your heating and air conditioning issues. Thank you Bryson for being so you and personable."





+130

Serving Havre De Grace, MD and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Rapid response punctual, professional, and friendly did a great job fixing my window unit. I would recommend and use them again."





+7

Serving Havre De Grace, MD and surrounding areas
Approved
In business since 1990
Free estimates
Credit card accepted
"Our Water Furnace was just 5 years old. Has worked flawlessly, we are warm in Winter and cool in the Summer. Best is our Yearly total electric bill was $1450!!!"



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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