
Serving Earth City, MO and surrounding areas
Approved
In business since 1947
Free estimates
Emergency services offered
"Geothermal heat system repair and maintenance"





+2


Serving Earth City, MO and surrounding areas
Approved
In business since 1947
Free estimates
Emergency services offered
"Geothermal heat system repair and maintenance"





+2

Serving Earth City, MO and surrounding areas
Approved
In business since 1947
Free estimates
Emergency services offered
"Marcus is great. He's serviced my house several times for both AC and furnace maintenance. He's very knowledgeable and thorough. Takes time to explain things and answer questions. Also offers suggestions, but doesn't pressure you. He's very efficient. Appears to be an honest HVAC tech and good guy."





+106

Serving Earth City, MO and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1979
Free estimates
Emergency services offered
"we had new gas-fired furnace and air conditioning system installed"





+18

Serving Earth City, MO and surrounding areas
Approved
In business since 2009
Warranties offered
Credit card accepted
"Mike was awesome, very knowledgeable and friendly. Efficiently got the furnace running as it should be! Even took the time to educate me on what the issue was and explained what he did to fix it. Highly recommend!"





+2

Serving Earth City, MO and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"Very informative and detailed. Parts we needed not in stock we just couldn’t wait due to extreme heat conditions. Other than that I would highly recommend"


Serving Earth City, MO and surrounding areas
Approved
In business since 2000
Emergency services offered
Credit card accepted
"Had new hvac, furnace, and hwh installed. Furnace had a couple of air leaks between a coil and furnace which I fixed myself. Hvac was spot on. Hwh failed first inspection, but was corrected in same day. For the premium price paid, these issues should not happen. Quality 4.5 because of these issues, same goes for value. Customer service is very good. They are very professional, work looks very good, clean worksite afterwards. I would recommend, but don't think about negotiating price with them. Their labor is very high."





+14

Serving Earth City, MO and surrounding areas
Approved
In business since 2017
Emergency services offered
Warranties offered
"John contacted me immediately after I submitted my project to Angi and came out later that same day to do an AC tune-up. He was professional, easy to work with, and respectful of the property. He diagnosed a few issues and possible solutions at varying price points, and went into the pros/cons of each one. I plan on having him come back this fall to check our furnaces."



Serving Earth City, MO and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
M&M Heating and Cooling is dedicated to providing our customers with the best quality and\ncraftsmanship. We are here to build relationships with our customers and communities and to provide\nour employees with a great place to work. We look forward to working with you!
Serving Earth City, MO and surrounding areas
Approved
In business since 2017
Free estimates
Customers say: Quick response
At Master Remodel & Construction, we offer friendly and courteous service. We use only the best products, and we are always eager to answer your questions or address your concerns. We have built our reputation on our commitment to providing quality service. This has earned us an impressive reputation with many valuable customers. We take pride in delivering value through top quality work with excellent prices.





+11

Serving Earth City, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Emergency services offered
Small jobs welcome
"The Steven Brand did a very professional and thorough job. They removed my kitchen cabinet and old stove top to create a space for a 30 inch stove."





+1
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.
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