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Avatar for Conde Tech Services, LLC
Conde Tech Services, LLC
5.0(
206
)
Ductless Mini-split A/C - Install or Replace

Serving Rosslyn, 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 Polar Bear Air Conditioning And Heating Inc
Polar Bear Air Conditioning And Heating Inc
4.4(
237
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Rosslyn, VA and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"Joe was clearly very experienced with knowledgeable about old row houses like mine, and he gave me a ton of confidence in his professional opinion. His quote was also very affordable, and we are happy with the work his guys did installing a new central AC system in our home."
Response time1 day
15 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Winds of Valley LLC
Winds of Valley LLC
4.9(
145
)
Central A/C - Service or Repair

Serving Rosslyn, VA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Needed a second opinion regarding a very pricey recommended AC repair/replacement, just before a forecasted heatwave. Sam at I-HVAC got me on the schedule that day and John arrived just a couple hours later. He did a very thorough inspection of my AC components and saw very quickly that some wires were crossed in the AC condenser unit. After fixing those, adding refrigerant and testing everything, the AC was good to go. John was extremely professional, polite and great about explaining everything he did. He and I-HVAC saved me a lot of money and reassured me that my AC would be OK going into the very hot and humid weather. I'll absolutely use them again."
I-HVAC
I-HVAC
I-HVAC
I-HVAC
I-HVAC

+5

Response time3 hrs
1 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Magna Tech Temp Air, LLC
Magna Tech Temp Air, LLC
4.8(
166
)
Central A/C - Service or Repair

Serving Rosslyn, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Quickly diagnosed the central air conditioning system, and gave an estimate on the cost of recharging the refrigerant in the compressor. The system is a 14 year old Carrier unit. Albert also included some sealant that may plug up the slow leak of refrigerant that occurs every 2 years or so. Albert also, showed me how to adjust the damper to control the flow of air to the second and third floors of the house. The other company that arrived wanted to charge me $5,000 to repair the system or close to $7,000 to replace the AC system with new. I intend to call upon Magna Tech Temp Air, Inc when I'm ready to purchase a new HVAC system. Thanks again for taking the time to listen to my concerns. Well done!!!"
New !6 Seer 3 Ton Air condition
B-Vent
New 80% Gas Furnace Instal
Ashburn Upgrade
Ashburn upgrade

+4

Response time3 hrs
12 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for SwiftPro Heating, Cooling & Plumbing
SwiftPro Heating, Cooling & Plumbing
4.6(
117
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Rosslyn, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"We had a great experience when SwiftPro completed a dryer duct cleaning and a bathroom fan replacement at our home! They were on time, professional, and friendly. Moises also threw in a much-needed bird cover for our dryer vent to help prevent future issues. We highly recommend Tyler, Moises and the SwiftPro team for all of your HVAC and plumbing needs!"
Business HVAC
HVAC Replacement
HVAC Replacement
Customer's equipment
Look at details

+11

Response time4 hrs
Response rate100%
Recommended by43%of homeowners
Consumer's Choice, Inc.
4.1(
68
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Rosslyn, VA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Replaced our Air Conditioning unit on our four story condominium unit that included renting a crane. Their estimate was on average 30% less than their competitors. Courteous and professional team that replaced our AC unit. We will be hiring them in a month or so when our current Annual Maintenance Contract expires. Call them, you will not be disappointed."
Recommended by96%of homeowners
Avatar for Dominion Service Heat and Air
Dominion Service Heat and Air
4.1(
183
)
Central A/C - Service or Repair

Serving Rosslyn, VA and surrounding areas

Approved

In business since 1994

Emergency services offered

Warranties offered

"Dominion Services replaced my 30-year old HVAC system (the outside compressor, and the inside air handler) with a modern one having a 50% increased efficiency rating. The quality of their work is high (four friendly employees with more than 100+ years' combined experience were involved) and have good flexibility to adjust to my work schedule. They easily adapted the new system to the existing hook-ups, and were flexible in their selection among alternate, reliable replacement HVAC systems. The replacement cost was well within the range of the national average. I recommend contacting Dominion Services for insight into any HVAC issue."
Homeowner
new hvac install
A/c unit
furnace
heat pumps

+7

Response time3 hrs
10 neighbors recently requested a quote
Recommended by85%of homeowners
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Air Conditioning questions, answered by experts

It is possible to add air conditioning to an older home, but it can be very expensive to do so. Expect to pay anywhere from $6,000 to $17,000 or more for the ductwork and AC unit. You’ll also have to hack into the home’s walls and ceilings to add ductwork, which can impact the aesthetics of an old home.

If your central AC is not blowing cold air, you should try resetting the system. Many systems have a reset button. Make sure your thermostat is off, then turn off the circuit breaker that powers your AC. Hold the reset button for three to five seconds, then turn the circuit back on. Set your thermostat to cool and choose a temperature cooler than the room. Your system should turn on quickly.

There are two main reasons your furnace and AC are turning on at the same time. The first could be that you’re confusing the furnace with the blower. The blower is located in the furnace and will turn on to distribute cool air from the air conditioner through the ductwork in the home. This is normal. If the actual furnace is turning on at the same time as the AC and hot and cool air are coming into the home, it could be a result of incorrect writing to a new thermostat or new systems.

If refrigerant levels are low, it can cause the evaporator coil to freeze up. Low freon causes a drop in pressure, which will make the coil too cold and cause moisture to freeze on the coil. Your system may be low on refrigerant because of a leak. 

Make sure to have maintenance performed twice a year, and contact your local HVAC technician if you suspect your system has low freon levels.

Yes, scorpions can enter a home through AC vents, especially if the system is not well-sealed. As excellent climbers, they can scale a home's exterior and squeeze through gaps as small as 1/16 of an inch. Scorpions are often attracted to the moisture around air conditioning ducts or seek cooler areas during hot weather, using vents as a pathway inside. They may slip through small openings where the duct meets the vent cover and travel within walls before emerging. To prevent this, inspect your vents, seal any gaps, and consider installing fine mesh screens.

The Rosslyn, VA homeowners’ guide to air conditioning services

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