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

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

Serving Manassas, VA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"My AC failed and I had limited time to find a good solution, I made a phone call to Relax HVAC based on the online reviews and it was a great decision. Nasser came to check the situation, he gave a very detailed and comprehensive overview of the situation and provided with the options I had. I decided to replace the unit, Nasser went above and beyond to find a unit delivery service but there was nothing available over the weekend so this gentleman went for unit pick up himself and finished the installation within a day from my initial call. Moreover, the provided price was very reasonable.I can't be more happy with the outcome and highly recommend Relax HVAC"
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+12

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

Serving Manassas, VA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"This guy is young and has that techie cutting edge experience. He came in recognizing my problem immediately. He split my AC system to function on multiple levels and I can choose a single level to cool or multiple levels. Not only did this improve my comfort at home, but reduced how long my unit ran during the blistering heat this summer ( remember my statement about cutting edge). Pricing was reasonable and very customer-oriented. Trust me, you want this guy who doesn t come into your home and start throwing big names around and speaking in tongues that = a ton of money. He doesn t try and take advantage of you if you re woman or not familiar with the overall DNA of heating and cooling system. Try em! You won t like this company. You ll love this company!"
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 McCrea Heating & Air Conditioning Services of MD
McCrea Heating & Air Conditioning Services of MD
4.5(
318
)

Serving Manassas, 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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9 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for TC HVAC Services, LLC
TC HVAC Services, LLC
5.0(
20
)

Serving Manassas, VA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"TC HVAC showed up on time, were professional, did what they said they would do at the price they quoted (which was better than any other company) and the system is working wonderful. I will use them again when we are ready to replace our water heater and A/C unit."
fully installation entire house duct with system
old outdoor
old outdoor
main trunk line the same house
old indoor

+99

Response time3 hrs
Recommended by100%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.3(
103
)

Serving Manassas, VA and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"Great company! They've been super responsive when we've had questions or concerns, and deliveries are frequent enough that we never have to worry about running out of heating oil."
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Response time6 days
20 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for BlueStar Air Mechanical Inc.
BlueStar Air Mechanical Inc.
4.9(
32
)

Serving Manassas, VA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"John, the tech, was patient and thorough as he cleaned and took readings of the system. He took the time to show me what was actually needed to update my furnace and make it work efficiently. Plus my dog really liked John too."
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+13

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

Serving Manassas, 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
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Modern Mechanical
Modern Mechanical
4.4(
47
)

Serving Manassas, VA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"When my A/C system went out, my home warranty company (Old Republic) called Modern Mechanical to do the service call.   On the initial call they identified the fan motor was busted, and came back to replace it later that week after ordering the part... but they could not mount it properly because the bottom bracket was rusted out.  At this point I inquired about replacing the whole unit (25 years old, well past its useful lifespan).  While the home warranty wouldn't cover full replacement, Modern Mechanical did give me a complete estimate for a replacement heat pump and air exchanger, including a discount for parts/labor covering the work already done on the old unit.  The estimate was fair and based on the quality of their work done so far I went ahead with it.  They hauled away the old unit, installed the new one, custom-cut the duct work to fit, fully sealed and insulated all joints, ducts and piping, and tested the new unit before signing off on it.  The repair team was prompt and thorough, did a good job with the estimate, equipment recommendation and installation, and I would definitely recommend them for this type of major HVAC installation project."
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10 neighbors recently requested a quote
Recommended by85%of homeowners
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FAQs for furnace / forced air heating system install or replace projects in Manassas, 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 Manassas, 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.