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Mannix Heating & Cooling

Heating and Air Conditioning

About us

Mannix Heating and Cooling is a full service HVAC contractor with a location in Chantilly VA and Gaithersburg MD to serve you. We offer an extensive array of services designed to keep your heating and cooling equipment operating at peak efficiency through many years of reliable operation. We also provide water heater replacement, standby home generators and electrical panel replacements. For more information, please email info@mannixhvac.com

Business highlights

14 years of trusted experience
Emergency Services Offered

Services we offer

Heating & air conditioning - repair, replacement & installation, water heaters, humidifiers. Electrical - upgrades, generators. Service agreements

Services we don't offer

Window Units, New Construction HVAC Systems, Oil Furnace Repair

Amenities

Free Estimates
Yes
Warranties
Yes
Senior Discount

5%

Emergency Services
Yes


Accepted payment methods

Check
Financing Available

Photos of past projects

Reviews

4.9736 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
92%
4
4%
3
1%
2
1%
1
1%


Rating CategoryRating out of 5
quality
4.9
value
4.7
professionalism
4.9
responsiveness
4.9
punctuality
4.9
Showing 726-736 of 736 reviews

Margaret H.
11/2012
5.0
heating & air conditioning/hvac
  + -1 more
Everything went great!!!!
Description of Work: I called them originally for a "check-up" on the furnace before the winter. During the inspection, he found an oil leak from our compressor that was also leaking freon. We had been having a smell in the house for OVER 3 years and another company, FH Furr had come to inspect and found NOTHING. He had to come back the next day to do the repair, but I was thrilled that he could come that soon. He was AWESOME!!! He went above and beyond the call of duty, doing some little extras, free of charge, I will call them again, definitely!!!!! GREAT WORK!!!!

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$750

Anne G.
11/2012
5.0
heating & air conditioning/hvac
  + -1 more
w
Description of Work: Mannix replaced an HVAC unit in my condominium with a 2 ton package heat pump. Jerry personally completed the estimate. After estimates from 5 different HVAC companies, I decided to go with Mannix because of their service record, price, warranty, customer service, and professionalism, The two gentlemen arrived on 09/19/2011 to complete the work. They worked from 9:30 a.m. to 7:30 p.m. They were meticulous, professional, and expert in completing the removal and installation of the HVAC unit. The work was very challenging because of the size and location of the unit. The gentlemen went above and beyond in delivering a superior installation service. I would highly recommend Mannix as a service provider. Their customer service and performance is second to none.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$5,900

Howard R.
11/2012
5.0
heating & air conditioning/hvac
  + -1 more
fantastic job!!!
Description of Work: installed new compressor, new heat exchange, and humidifier. They completely lived up to all the hype that was written in the reviews. Sales consultant was very informative and he was not pushy, did not try to sell me *things* I did not need. I highly recommend them

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$10,000

Mark M.
07/2012
5.0
heating & air conditioning/hvac
  + -1 more
unknown
Description of Work: The AC broke down in this heat wave. Called Fri morning and they told us someone would be there early Mon. However, they soon called back, said someone was in the area and had the problem quickly fixed. Good service, fair price.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

yuk C.
07/2012
5.0
heating & air conditioning/hvac
  + -1 more
unknown
Description of Work: Excellent service, great communication skills and reasonable rates.
Rating CategoryRating out of 5
Yes, I recommend this pro

Erwin P.
01/2012
5.0
heating & air conditioning/hvac
  + -1 more
unknown
Description of Work: I called in for duct cleaning work. The lady answering the phone was extremely nice and actually referred me to a duct cleaner that could help me

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0


Reid M.
11/2011
5.0
heating & air conditioning/hvac
  + -1 more
See Above
Description of Work: Bill came in and diagnosed why my system was not producing adequate heat...it turned out be a rusted heater pack from the evaporator coil leaking onto it. He ordered the part and returned to install it....he then determined that was not the only issue and determined the previous company installed too much freon causing the unit to shut down when the unit overheated....it will be nice to be able to turn on the heat and not have to run it for twelve hours to raise the temperature in the house two degrees and raise my electricity bill.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$600

Brian W.
08/2011
5.0
heating & air conditioning/hvac
  + -1 more
It was great.
Description of Work: Dan figured out quickly that I just needed freon, he re-charged my AC quickly and for a great price! I would definitely use Mannix again.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$159

Catherine P.
08/2011
5.0
heating & air conditioning/hvac
  + -1 more
See above
Description of Work: We had a new Carrier furnace and air conditioner installed. Both the salesman and installers were punctual, professional and friendly. Within a few hours of the installation, I realized that the air conditioner was not cooling properly. I called the company and they sent Dan out immediately. He determined that the fan motor was defective. None of the local Carrier distributors had a motor in stock. However,he was able to find a generic motor which he installed so that we would not have to go without cooling for even a day.The generic motor worked fine ,and when the replacement motor came from Carrier he came back and installed it. We are now 'cool as a cucumber". I could not have asked for better service in resolving the problem.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$7,300

Paige S.
07/2011
4.0
heating & air conditioning/hvac
  + -1 more
.
Description of Work: .

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$150

Contact information

26955 Gum Spring Rd, Chantilly, VA 20152

http://www.mannixhvac.com

Service hours

Sunday:
Closed
Monday:
8:00 AM - 6:00 PM
Tuesday:
8:00 AM - 6:00 PM
Wednesday:
8:00 AM - 6:00 PM
Thursday:
8:00 AM - 6:00 PM
Friday:
8:00 AM - 6:00 PM
Saturday:
9:00 AM - 1:00 PM

Licensing

Bonded

Insured

Licensed*

Trade License Number
2705135017
Trade License Locale
VA
Trade License Authority
Virginia Department of Professional and Occupational Regulation
Trade License Expiration
05/31/2024

Eco-friendly Accreditations

LEED Accredited Professional
No
Energy Star Partner
No
EPA Lead-Safe Certified
No
Use Green Products or Work Practices
Yes
State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.

*Contact business to see additional licenses.


Service Categories

Heating and Air Conditioning

FAQ

Mannix Heating & Cooling is currently rated 4.9 overall out of 5.

Sunday: Closed

Monday: 8:00 AM - 6:00 PM

Tuesday: 8:00 AM - 6:00 PM

Wednesday: 8:00 AM - 6:00 PM

Thursday: 8:00 AM - 6:00 PM

Friday: 8:00 AM - 6:00 PM

Saturday: 9:00 AM - 1:00 PM

Mannix Heating & Cooling accepts the following forms of payment: Check,Financing Available
Yes, Mannix Heating & Cooling offers free project estimates.
Yes, Mannix Heating & Cooling offers eco-friendly accreditations.
No, Mannix Heating & Cooling does not offer a senior discount.
Yes, Mannix Heating & Cooling offers emergency services.
Yes, Mannix Heating & Cooling offers warranties.
Mannix Heating & Cooling offers the following services: Heating & air conditioning - repair, replacement & installation, water heaters, humidifiers. Electrical - upgrades, generators. Service agreements
Window Units, New Construction HVAC Systems, Oil Furnace Repair

Contact information

26955 Gum Spring Rd, Chantilly, VA 20152

http://www.mannixhvac.com

Service hours

Sunday:
Closed
Monday:
8:00 AM - 6:00 PM
Tuesday:
8:00 AM - 6:00 PM
Wednesday:
8:00 AM - 6:00 PM
Thursday:
8:00 AM - 6:00 PM
Friday:
8:00 AM - 6:00 PM
Saturday:
9:00 AM - 1:00 PM