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

Avatar for Relax HVAC, Inc.
Relax HVAC, Inc.
5.0(
32
)

Serving Sterling, VA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Kamal diagnosed and completely repaired a failure with our upstairs ac/heat pump that was having high/low stage lockouts. Neither the ac or heat pump was working. He replaced the compressor which had died, replaced the TX valve in the attic, which was installed incorrectly by the original installer, flushed the line and checked for leaks, etc. In a quick turnaround time. Kamal communicated every step of his repair and was very honest and responsive. Everything is now working perfectly. This is a complicated system to repair, and the expertise, timeliness and the VERY fair price Kamal gave to us made it a First Class job. Great work!"
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+12

Response time1 day
13 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Conde Tech Services, LLC
Conde Tech Services, LLC
5.0(
206
)

Serving Sterling, VA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Owner Matthew Conde responded immediately to Home Advisor entry: furnace stopped working on Halloween night, with asthma resident in the house. My (former) contractor was booked all weekend, but Matthew came within a few hours! He diagnosed furnace and found that fan motor was shot: presented option of replacing it or furnace itself. Since furnace was 18 years old, I went with new Carrier Infinity furnace which was installed 3 days later. Great relief, after 3 days of portable heaters! Matthew, Jason and Kenny (installers) were exceptionally professional, personable, experienced and knowledgeable. They explained everything to our satisfaction, including use of smart thermostat. After installers had left, we noticed that green light on air filter wouldn't come on. Matthew came over that evening, checked out furnace to his satisfaction, and found that there was no power to nearby outlet plug, After rewiring outlet, media air filter was working again! Conde Tech Services is a young company which we highly recommend! We plan to use them for years to come! Thank you, Home Advisor, and thank you, Conde Tech Services -so glad we found you!"
Gas Fireplace Service
Gas Logs Maintenance
Heat Repair
AC Maintenance
Cleaned outdoor unit

+2

Response time10 hrs
Response rate92%
Recommended by99%of homeowners
Avatar for Polar Bear Air Conditioning And Heating Inc
Polar Bear Air Conditioning And Heating Inc
4.4(
237
)

Serving Sterling, VA and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"I've been pleased with Polar Bear since they installed my A/C 16-17 years ago. Always prompt response to any problem, always knowledgeable professionals. Now it's time for a new system, I was walked through my options with no pressure to spend more, just the info on variables, and an offer of a discount, and very flexible deposit/payment arrangement. Great company."
Response time1 day
24 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for McCrea Heating & Air Conditioning Services of MD
McCrea Heating & Air Conditioning Services of MD
4.5(
318
)

Serving Sterling, VA 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
Avatar for BlueStar Air Mechanical Inc.
BlueStar Air Mechanical Inc.
4.9(
32
)

Serving Sterling, VA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"It took a few hours to set up. After I figured out the Ecobee thermostat I was able to successfully program it. Technicians are considerate and aim to please."
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+13

Response time6 hrs
2 neighbors recently requested a quote
Recommended by79%of homeowners
T&J Service LLC, Heating & Cooling
4.8(
19
)

Serving Sterling, VA and surrounding areas

Approved

In business since 2012

Free estimates

Offers commercial services

"This is a contractor we all want to find, to hire someone that will not try to talk you int.o a new furnace when the thermostat just needs to be reprogrammed after replacing weak batteries. The service man tested a few electrical components on the furnace, and he concluded that the furnace was not the problem. His service call lasted less than an hour, I learned a few things, and the temperature is no longer 57 but a more comfortable 72."
Response time4 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Modern Mechanical
Modern Mechanical
4.4(
48
)

Serving Sterling, VA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"I have been a customer for a very long time and this scheduled maintenance and dryer vent cleaning was done by Cesar. I have to say he is one very thorough technician and I was very pleased with his inspection and vent cleaning. His service was so different than some of the ones I've had before. I even had one inspector tell me he didn't need to check in my attic which houses one of our two units. Let me tell you about Cesar, he even cleaned up behind my dryer for me. This is something that is rare in customer service. I have my HVAC seasonally maintenanced and never had a inspector be as thorough as him. The pictures he took and explained to me and the one problem he found that no other inspector had found in all this time. I tried to spare him from the attic heat for the repair and have him return on another day in the morning but he didn't mind going back in there to fix the problem for us although it was in the dead heat of the day. I just hope the company sees this review and knows what a good technician they have in Cesar."
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18 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for ARS of Virginia
ARS of Virginia
4.4(
274
)

Serving Sterling, VA and surrounding areas

Approved (Corporate)

In business since 1950

Free estimates

Emergency services offered

"ARS installed my A/C and furnace system about five years ago and they have been doing the maintenance and any repairs since then. The technicians are knowledgeable and professional. They do not try to sell unnecessary repairs or equipment."
Install of a new A/C system.
269 neighbors recently requested a quote
Recommended by80%of homeowners
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FAQs for furnace / forced air heating system install or replace projects in Sterling, VA

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 Sterling, VA 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.