Mannix Heating & Cooling, LLCHVAC Services in Chantilly
Mannix Heating & Cooling, LLC specializes in Carrier HVAC installation, repair, and maintenance. Proudly serving Chantilly and the surrounding areas, we deliver reliable, certified HVAC solutions to meet your home's needs. As your local Carrier Factory Authorized Dealer, your satisfaction is our number one priority. That's why we stand behind our work with a 100% satisfaction guarantee. Equipped with NATE-certified technicians, we strive to exceed your expectations, whether performing routine maintenance or installing a new Carrier heating and cooling system.
Experience and Certifications
Factory Authorized Dealer
As a Carrier Factory Authorized Dealer, we have met Carrier's highest standards for superior skills, service, and we proudly offer a 100% satisfaction guaranteed.
NATE Dealer
North American Technician Excellence (NATE) is the leading certification program for HVAC technicians and is the only test supported by the entire industry. We are proud to employ NATE certified technicians.
Financing Available
We offer flexible financing options for your new Carrier product or system. With approved credit, you can enjoy convenient monthly payments, competitive interest rates, and online bill pay.
Cool Cash
We participate in Carrier Cool Cash rebates. With the support of Carrier, during select times of the year Cool Cash rebates might be available when you purchase a qualified Carrier heating and cooling system.
HVAC Repair and Installation Services
Air Conditioner Repair & Service
We specialize in fast, reliable air conditioner repair and service to keep your home cool and comfortable. Whether it’s a minor fix or a major repair, we're here to ensure your AC runs smoothly when you need it most.
Furnace Repair & Service
We provide expert furnace repair and service. Our skilled technicians are ready to quickly diagnose and resolve any issues, keeping your home warm and comfortable year-round.
HVAC System Installation
We provide expert HVAC installation to keep your home comfortable year-round. Whether you're replacing your current system or installing HVAC for the first time, we'll help you choose the right solution for your needs and handle the installation with precision and care.
HVAC Maintenance
We offer annual HVAC maintenance to keep your system running efficiently and help prevent unexpected breakdowns. Through a thorough inspection and tune-up, we ensure your heating and cooling system is ready to keep you comfortable all year long.
About Mannix Heating & Cooling, LLC
Trusted HVAC Professional in Chantilly
Leave a ReviewCarrier.com Reviews
4.98 out of 5(66 reviews)
Installation Experts
Their team was professional and extremely helpful from the sizing through the installation process. The install of two systems and the hot water heater was completed in one day.
Paul
-
October 25, 2024
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Heat Pump Install
Installers did a great job. Showed us any instructions we needed.
Eileen
-
January 11, 2024
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Great experience!
Excellent experiences with Mannix. Shout out to Rember, who was efficient and on time. The installation of my new system went great, and I would highly recommend this company. Thank you, Jerry Mannix. You run a great company!
Joe
-
November 22, 2023
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Great Customer Service
Working with Mannix is a great experience. They replaced my AC unit several years ago and were efficient and honest. It was time to replace my furnance and they quickly provided several quotes, were responsive to my questions, and were able to get the equipment ordered and an installation appointment scheduled in about a week. Excellent service all around.
Deborah
-
November 10, 2023
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent service and installation
Mannix has provided excellent service on all my carrier systems.
Chris
-
August 09, 2023
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
New System Installation
All the representatives from Mannix were very knowledgable, professional and responsive
Lyn
-
August 09, 2023
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Great service all around!
The team from Mannix was expert, timely, courteous, and professional. I'm glad that I chose them and will definitely be back.
John
-
August 07, 2023
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Definitely REcommend
This went very well from beginning to end. Lots of knowledgeable people, and they came right back to solve a small problem.
Don
-
August 06, 2023
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent service! Super knowledgeable and nice folks to work with!
Removed old unit and installed new in a new spot. Did such a great job, def recommend.
Suzanne
-
July 12, 2023
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Absolutely wonderful experience
Mannix heating and cooling is very professional and customer friendly. Jerry went out of his way to sell me the system that worked best for my house and budget.
Dave
-
July 12, 2023
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Good People
Needed new a/c replaced. Gave honest prices, no upsells. Owner, sales, installers ,\& office personnel all great! Smooth stress free experience. Thank you!
Cindy
-
July 06, 2023
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Replacement of my 2nd floor HVAC (AC, furnace and compressor)
Excellent work and pricing.
Joel
-
June 30, 2023
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Good sales experience into a quickly scheduled professional install
Installed a new AC, and have been happy with the sales process, the AC itself, and the overall price and process. I evaluated five companies, and eventually went with Mannix for having a competitive price, without a lot of sales pressure or manipulative sales shenanigans, good company ratings, and a responsiveness to both email and phone. (In particular, a couple vendors (Snell especially) gave me high pressure sales nonsense, despite my being very clear about getting multiple vendor bids. The Mannix sales rep candidly gave me a competitive price up front, and didn't belabor the process with a bunch of unwanted talking points or tactics.) The techs came out a few days later, and in the course of a morning installed a 3 ton 16 SEER AC and furnace for my townhouse. They were done by the early afternoon. Heats and cools about two months so far without any issues. No complaints, happy customer.
Jason
-
June 11, 2023
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent customer service
Excellent communication highly recommend
Michelle
-
June 08, 2023
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Couldn't be better
Everything went smoothly and everyone was polite and professional.
Ray
-
May 06, 2023
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Very Positive Experience Highly Recommended
Contacted Mannix to request an estimate to replace two old and faulty HVAC systems. Their representative Eric Holzworth came by later that same day to size up the project and give me an estimate. I had had three other HVAC estimates done prior to contacting Mannix. After a few weeks of consideration I selected Mannix Heating \& Cooling for the project. Eric's professionalism, knowledge and expertise of the equipment, installation and detailed questions I asked was the best of them all and pushed it over the top. Two HVAC systems were installed on the same day, one 2 Ton Conventional blower and one 1.5 Ton Heat Pump system with Two Ecobee Premium WIFI Thermostats in a 4 storey building. Two installation crews arrived. The Journeymen and assistant for each crew were experienced professional and very efficient at installing the HVAC systems. Drop cloths were used when needed and attention was paid to prevent any accidental damage to floor, walls and several flights of stairs. After installation and prior to departure both systems were operationally checked to insure each HVAC system and its Thermostat control unit functioned properly and to answer any questions I might have. All in all, a very positive experience. I highly recommend Mannix Heating \& Cooling.
Alain
-
April 17, 2023
Verified Purchase
Expertise:
5
Service:
5
Outstanding!
3rd time I've used Mannix company and will continue to!!!
Jake
-
December 01, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Trustworthy and Efficient
I literally had a Frankenstein unit that was in need of just retiring. Its never the right time, but I needed a whole new System and had a unique situation that needed looking at by the owner to assess. They determined our needs and gave us three choices to choose based on our budget. It is now installed and they were quick, clean and efficient. So far so good and happy to happy it done!
Brenda
-
October 20, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Great pricing and good, prompt customer service
Same as title
Chander
-
October 14, 2022
Verified Purchase
Expertise:
5
Service:
4
Very satisfied - Mannix is my go to HVAC service/dealer
I've used Mannix for almost 20 years. Best dealer and service I've found. Top notch.
Ross
-
July 06, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Great experience
Excellent service. On time and very professional. Site left clean.
Edward
-
June 22, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Replacement of AC and Furnace
All\-around positive experience.
Chris
-
June 17, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent Service!!!
Excellent Service!!!
Carlos
-
June 17, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Mannix H&C Furnace/AC Review
Excellent process from estimate to final installation. Very professional organization.
Stephen
-
May 19, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent
Experienced. Came in and installed new air conditioner and coil.
Jeri
-
May 04, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Amazing customer service and quick, easy installation!
We had a wonderful experience working with Mannix. From the customer service reps on the phone, to the appointment scheduler and dispatcher, to the guys who physically installed our equipment, everyone was extremely friendly, helpful, and on\-time to make the process of replacing our HVAC system easy and stress\-free. I was very impressed with the professionalism of the guys who installed our equipment as well. They wore booties in the house as well as facemasks to ensure cleanliness and sanitation. We will definitely be using Mannix again!
Jordan
-
April 29, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Amazing and seamless experience
the team was expert on what they are doing, plus seamless in work and on time . Also they explained what they did in details. thank you again for your service
Harsh
-
March 25, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent service
Excellent installation
Barbara
-
January 24, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Efficient and covid cautious installation
Did a great with minimal disruption of heating and clean installation.
Johan
-
January 20, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Outstanding Experience Across the Board
Helpful and informative involvement by owner, Jerry Mannix, throughout process. Super professional work on installation. Very competitive pricing. Would definitely use again and heartily recommend to others.
Robert
-
January 20, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Outstanding Service
I have used Mannix Heating and Cooling for over 10 years. They installed my a/c unit in 2010 and recently installed a new furnace, humidifier and ecobee thermostat. I'm really happy with all three. What is most impressive is how quickly Mannix responded when my furnace just stopped working. A technician arrived in an hour confirming my 23 year old furnace's motherboard was not working. Within 48 hours Mannix came to my home and installed my new furnace right after the big snow. I am now happily warm. A big shout out to Jerry Mannix whose expertise and integrity I completely trust.
Nancy
-
January 12, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
3
Conversion from electric to gas heating
Jerry Mannix and his crew were professional, responsive and knowledgeable. I highly recommend Mannix Heating and Air.
GAIL
-
December 10, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Exceptional customer service and installation
The staff was extremely friendly and worked with me. They explained it all and were extremely patient. Very clean and phenomenal installation.
Dora
-
September 07, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Fair and Honest
Have used this dealer for all heating and cooling needs. Always fair and honest!
Amy
-
August 07, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Despite supply-chain issues, amazing job!
Despite the supply chain issues of Summer 2021, Mannix was able to come out and diagnose the issue with my unit, and get an estimate set up the same day. When the A/C unit was on backorder for an extended period of time, Mannix was able to devise a workaround solution which met all of my requirements and performed the install quickly and flawlessly once the parts were acquired. Absolutely no complaints.
Andrew
-
August 02, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
A great job!
Jerry came to evaluate our situation \- I was very impressed with him: customer focused and obviously knowledgeable. Courtney, our scheduler, also handled everything in a professional manner under difficult circumstances (equipment was unavailable for several weeks). The installers, Billy and John, did everything smoothly and surprisingly quickly. It was great dealing with the pleasant and competent people at Mannix.
Gabriel
-
August 02, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
No one better
Installation was top notch!
BRIAN
-
June 28, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Great customer service
I've been a loyal customer of Mannix for about 5 years. I can't say I've cost compared to speak to if they're the best bargain. They do, however, have high standard customer service which is reason enough for me to stay with them.
Jason
-
June 25, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent, quick, and clean install!
Mannix is excellent!
Michael
-
June 23, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Outstanding 5-Star Installation and Service by Mannix Heating and Cooling - 2 full Infinity systems installed on the same day.
Mannix is Rated for the highest quality by Washington's Consumer's Checkbook Magazine for HVAC installation and service, and Mannix also is a Carrier Gold and Authorized Installer in Northern Virginia. I replaced my 20\-year old Carrier two full systems \- A/C and Heat Furnaces \- with Carrier Infinity Systems in June 2021. The Infinity Seer 26 systems are amazingily quiet and provide exceptional perofmrance. Hal Drake of Mannix quoted all matching Carrier components including A/C, Gas Furnace, coils, Infinity Thermostas, and Carrier Electrostatic filters. The only disappointment is the Carrier Infinity Thermostats are not as good as I had expected to be, and do not provide the flexibility what other Smart Thermostat provide. But Carrier and Mannix is a winning combination and Mannix installed two full systems with 2 crews in 4 hours correctly, on the same day. I highly recommend Mannix for any Carrier HVAC systems installations or service. Thank You.
MANOJ
-
June 19, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Replacement went super smooth
Great product installed by professional and courteous technician s. Everything went as expected
ANDRE
-
June 17, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Five Stars Plus Experience!!
It was a very positive experience dealing with Mannix from start to finish to get our new HVAC system. Customer service was very responsive. The installers were prompt on installation day and finished ahead of schedule.
Steve
-
June 11, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Great Service and quick reposnse
The installation and finishing shows the maturity of this organization. Quick feedback when I had questions. Very pleased
Celso
-
June 09, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Very Satisfied with the installation
I was very satisfied with the installation process. Technicians were on time; efficient and protected my floors. They explained what had been put in and how to use the new thermostat. The dealer was recommended to me by my project manager who had used them on prior occasions
Jean
-
April 29, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Outstanding service and wrok.
On time and on budget. Friendly service people to work with.
Leif
-
April 21, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Great company great service very happy
Awesome company, great service!
John
-
April 14, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
10-year satisfied customer
Always very responsive. Friendly. Customer\-focused. Purchased heat pump, furnace, and water heater from them, in addition to service plan.
Bill
-
February 20, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent company
Great service
Ken
-
February 10, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent Service
Very professional, clean and efficient. Great work!
Fraser
-
January 04, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent Service
Excellent, very punctual, efficient and knowledgeable.
Terrie
-
December 11, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Always work with these guys
We have had them work at all of ou families homes. We never go with anyone else as we are so happy with their service.
KARIN
-
December 02, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Very impressed from the owner of the company to the employees
I have been using Mannix Heating and Cooling for over 5 years for my HVAC service. The technicians that come to to my house are professional and experienced. They all love working for Mannix which speaks volumes about the company. My house is 20 years old and Mannix has installed all of my systems. I recommend to everyone I know to use this company. They take the time to explain everything and only recommend things that make sense for you and your family. You can trust these guys.
Bill
-
November 20, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent installation
Mannix Heating and Air Conditioning do an excellent job at a fair price. All employees seem happy working for Mannix , everyone is top notch from customer service, keeping you informed, sales working with your needs and budget, and installation. Matt installed my new furnace, looks great and works properly.
Richard
-
November 16, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Highly recommend Mannix!
Mannix Heating and Cooling, LLC provided great service when we were in need of a replacement heat pump. They are a professional and honest company!
Wayne
-
November 02, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Installation of Furnace and A/C Units
I had Mannix install a new upstairs A/C unit and furnace in August 2019. At the time I received several bids and Mannix was among the lowest for similar efficiency equipment. They did an excellent job installing the equipment quickly, taking care inside of the house not to damage anything. They explained how to use and maintain my system and answered all of my questions. In the interim, Mannix has come out to perform regular maintenance checks on the new system (and my older system for the lower level) and their service technicians have been very efficient, polite and informative. As a result of my good experience with Mannix, this month I used them to replace the furnace and A/C units for my lower level (main system) and I could not be happier with the result. My experience with these installers was every bit as good as in 2019, and the price of the system was very competitive. I would recommend Mannix to anyone in northern Virginia needing HVAC sales or service.
Joe
-
October 28, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Great experience with Mannix Heating & Cooling (Northern VA)
No issues at all, they were prompt and clean \- laid down tarps so floors wouldn't get dirty, shoe covers, masks on the entire time.
ANGELA
-
October 26, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent work.
The installers seem to have done excellent work. They answered my many questions and were helpful with regard to questions associated with that of my steam humidifier and UV light.
MICHAEL
-
October 09, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Great service and communication
Hal was great, answered all of my questions and provided great advice and service
SAMUEL
-
August 23, 2020
Verified Purchase
Expertise:
4
Service:
4
Solve Problems:
4
Total redo
Mannix was super professional and worked with me for a fantastic experience. Very professional and clean.
MIKE
-
August 17, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Highly responsive professional service!
I have been using Mannix Company for some years. Their service is highly professional, responsive and efficient. I very much appreciate their support and advice.
TIANYANG
-
August 16, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Mannix HVAC
Service was top notch starting with Hal who did the initial consultation, to the technicians that came to install. All were efficient, neat, professional and personable. Hal and the technicians answered every question adequately and explained process and procedure without any high pressure tactics. We must have received consultation from at least 5\-6 other HVAC companies and Mannix stood out best for us!
JANICE
-
August 13, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Fast, professional and capable
I cannot tell what the boxes above mean but they get a perfect rating from me
JOAN
-
August 04, 2020
Verified Purchase
Quick, Efficient, and Friendly
Very friendly servicers who replaced our compressor and coil unit. They walked me through the process, answered questions, and even went above and beyond when I asked them to correct an error from a previous install (not by Mannix). They allowed me to ask questions at the end of the service, and I didn't feel rushed. I will definitely recommend them to anyone and we look forward to continuing to use Mannix for any of our HVAC needs.
Puhl
-
July 28, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Great experience
Was an easy installation with expert service
Ann
-
July 01, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
mannix
Used before
Andrew
-
June 04, 2020
Verified Purchase
Expertise:
4
Service:
4
Solve Problems:
4
Easy process
Overall a very good process from the beginning to the end and very pleased. Only minor issue is that AC makes a strange buzz noise when first starting up but will see if that works its way out in first few weeks. But if not I'm sure Mannix will take care of it.
Andrew
-
September 13, 2019
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Page 1 of 22