Residential Heating and Air Conditioning in the Stephens City, VA, Area

Experience the Difference Looking for a reliable air conditioning repair service? We’re the HVAC contractor you can count on!

Rated 5.0 out of over 40 reviews

Google Rating

4.9

Based on 41 reviews

CW Mossor heating and cooling

4.9

Tara Stickley

18:13 15 Nov 24

Carl is a very professional technician that does his work in a timely manner and at a reasonable cost. He was courteous, patient, and extremely well to work with. I will be recommending him to anyone that needs HVAC or heating work. Thanks again Carl!

Madeleine Gill Coontz

21:55 09 Jul 24

Carl actually answered his own phone, came on time the next day and diagnosed my a/c issue. Highly recommend.

Matt Bell

10:49 20 May 24

Responsive, Punctual and Professional. Would recommend

Kaelan Dreyer

12:00 16 Nov 23

Carl is the best! He determined our problem quickly, gave us a great price, and had our heat back on in no time. I have used other companies in the past who make you feel like you’re dealing with a giant corporation, and small shops that never get back to you. That’s not Carl at CW Mossor. He is the perfect blend of professionalism and human! He’s easy to talk to and honest. We will be using them exclusively.

Carl Coutant

15:16 09 Oct 23

Jeremy Beavin

19:48 04 Sep 23

Very responsive and worked us into his schedule very quickly. Wasn't able to do everything needed that day, but scheduled very quickly for a follow up appointment. Not exorbitantly priced either.

Doug W

18:20 23 Aug 23

Very professional. Great servive

Robert Weiss

03:54 19 Aug 23

Carl is extremely professional, knowledgeable, courteous, organized, prompt, great communication, easy to work with, and was able to resolve any issues I had as well as answer any questions I had. I had many quotes but chose to go with Carl and his company to perform my HVAC work and highly recommend him and will definitely go to him with any other HVAC questions, concerns, or other work.

Kathy Funkhouser

17:41 29 Jul 23

I would highly recommend

Salvatore Vasta

19:27 21 Jun 23

Carl provided excellent service from initial estimate to the completion of replacing our old system with a new Heat Pump. He was informative throughout the process and provided suggestions for resolving unknown issues.

Russell Dunlap

18:54 30 May 23

Carl was able to diagnose and fix an issue with my thermostat in less than an hour. Good communication, and offered flexibility in scheduling when I had a last minute conflict come up.

Louie Liu

14:50 03 May 23

Excellent service! Great communications! So appreciated your professional work!

Mike W

15:33 27 Oct 22

Carl fixed a leak in our mini-split heat pump and recharged the system. He was professional and let us know when he was available to service our system. He work efficiently to diagnose the trouble with our heat pump, and get our heat back on.

Daniel Elliott

20:57 23 Oct 22

Varoujan Varoujanian

23:11 12 Sep 22

Tyler Breidenbach

15:55 09 Aug 22

My AC went out and it had already reached 80 degrees by 9am! I called Carl and he was at my house in 30 minutes. He truly saved the day and I will not hesitate to call him again.

Michael Glassman

00:14 04 Feb 22

Excellent service and response time

Steve Sandberg

02:06 01 Jan 22

Explained what needed to be done in an easy to understand way

Robert Edwards

15:40 06 Nov 21

Too much on estimate over initial contact

Ashely Norton

22:03 01 Nov 21

Such a kind gentleman that was more than accommodating when an issue came up with out scheduled appointment.

Kevin Clark

22:19 24 Aug 21

Clay Golightly

22:15 13 Jul 21

Excellent communication and service. Carl gave specific times for the appointment versus large windows of time that we were use to with another company. He was efficient. He explained and showed me the issue at hand. Carl also made me aware of potential issues with a contact and capacitor which after seeing their physical condition, excessive rust, I agreed to replace. I will be a repeat customer and greatly appreciate his professionalism. I highly recommend this company.

Phillip Adams

21:37 13 Jul 21

Carl was a great technician, fair price, excellent service!

Tabatha H

22:55 29 May 21

kgb abc

23:38 07 May 21

Very responsive and professional. I will only use Mossor for all my HVAC needs!

Sandy Hanson

13:06 25 Mar 21

Mr. Mossor was on time and always letting us know he was on his way. He carried all equipment needed to cover and keep my floors clean and without scuffs. When he left we couldn’t tell he had been here aside from the quiet new ac system. He works efficiently and quietly. You’ll forget he’s there he’s so self sufficient and deliberate in his work. There is never a surprise at the end. He honestly lays out all options up front and allows you to make choices on the options available. He is the expert but left me in control because it’s my job site. He interacts in a very dignified and respectful manner. My wife never felt insecure in his presence. His pricing is reasonable which is refreshing because with him you’re getting the best there is without paying exorbitant price. It was apparent watching his interaction with the county inspector that the inspector recognizes that his work is quality and knows he can stamp approval with clear conscience. We couldn’t be more pleased. You’ll be cheating yourself if you go with someone else. No one out there can equal his experience.

sue garrett

00:33 08 Sep 20

This was the third time that we used Carl of CW Mossor. Each time he was asked to look at the issues we were having he provided quick turnaround of each service. He has been very courteous and very knowledgeable of what the issue was and how it needed to be corrected. We recently bought a new home and was concerned that the AC unit was not working properly. We had a Home Inspection done but was not aware that Home Inspectors are not allowed to actually look at the units. We asked Mr. Mossor to perform an HVAC Service Inspection after we took possession of the new house and he discovered that the Gas Heat exchange was cracked in three places. He immediately informed us that it was not safe to use. He was able to get us a new system within a week and install it. If he had not discovered the cracksin the heat exchange we would have turned the heat on when the season changed and possibly risked our lives to gas fumes or even worse. I would highly recommend his company to anyone that wants a professional and experienced technician. Thank you Mr. Mossor for your honesty and dedication to providing top notch service while giving the Homeowner the peace of mind that the job was done right.

Allen Shepherd

02:11 17 Jul 20

The technician showed up on time, and not only did he know what he was doing but he was more than honest and fair and did excellent work. We will definitely be using these guys and the future

Jennifer Banks

22:04 06 Jun 20

Carl came out within an hour of my call. He was SO nice. Had on a mask & gloves when he came to the door. Wore shoe protectors in the house. Luckily it was a quick repair. He had the parts he needed with him & we have AC again. We are so thankful for you today Carl! :)

zach ryman

23:22 25 May 20

I just had Carl come to my house to do a whole new A/C unit and furnace. He was on time worked the whole day don’t even know if he took a break. The coast for what he did was outstanding and the work as well. I recommend Carl for all you needs. Can’t say enough about him.

Paris

16:38 15 Jul 19

My AC blower malfunctioned & was no longer blowing cold air. I called Carl with CW Mossor & he came out the same day, diagnosed the problem, and returned the next morning with the part that was needed. He had the AC up & running in no time. Carl was knowledgeable & very prompt, he keeps his appointment times & even sends a text when he's on his way. Carl was professional, answered all my questions, and performed quality work. It was a stress-free experience.

Gene Stevans

23:14 30 May 19

Let me start by saying that if you’re reading this, then you are in the Winchester area and so I warn you DO NOT use GSSN. You are welcome to read about my review and experience on Yelp, Yellow Pages and Google.As for Carl and CW Mossor, I don’t have enough space to tell you how fantastic this experience was!!!!Carl checked all the most important boxes when it comes to customer service: fantastic communication, quick response, timeliness and prompt professional services. He was patient and informative when it came to answering all my questions and we are very grateful we have met an honest HVAC person in the area.The air conditioning compressor on our heat pump went out 3+ weeks ago. The home warranty company sent someone out and a week later they finally showed up. We were so disappointed with the first company, we requested a second opinion and that’s when we met Carl Mossor.He showed up the next day, took his time and did a full diagnosis. We were going to need a new compressor and a new motor, which isn’t unusual when your system is 17+ years old.Within five days Carl was able to get a new unit in hand for the outside and made arrangements to install it that very Friday - Just in time for the long hot Memorial Day weekend.I just can’t say enough about the wonderful experience Carl provided our family and I highly/confidently recommend him for any of your HVAC needs.

Darrell Johnson

12:29 29 Mar 19

Aurelia Cooley

22:03 06 Mar 19

Carl initiated interest in our heating problem when 2 other companies failed to call us back when we called him just to ask for input on pricing..Due to the time of the year he gave the best price. Promptly came with unit..worked without breaks to complete the job within the day.. We were totally impressed with his performance and would highly recommend him.

Seth Flickinger

20:12 15 Feb 19

We paid Mossor for a service call, but he became agitated that we did not go with their bid of supplying a new HVAC system due to their pricing of a new unit being too high compared to other bids. He said other repairmen must not be doing things to code and later we had a complaint that a permit was not applied for the replacement of our defective AC unit causing us an additional $130 expenditure.

Grace C

22:39 13 Feb 19

Very professional and prompt. Other company didn’t call back for 8 hours. Carl answered right away and scheduled an appointment same day. He arrived on time. He spent extra time diagnosing the problem and it seems to be working! Thank you!

Sherry Voit

01:19 02 Feb 19

I have now used Carl's Heating services on several occasions. Very professional, very responsive when other companies were not, and there is nothing I can say bad about him or his work ethic. And believe me, my husband did Heating/AC for 35 years, so I'm a very qualified person to judge his work.

Daniela S

02:06 01 Feb 19

We use CW Mossor for almost an year now. Carl was able to always fit us in his schedule and resolve the issues with had with HVAC system. Highly recommend him for timely, efficient and reasonable priced services.

Tara Dopson

01:09 03 Jan 19

Fast service and super pleasant to deal with. I will be sticking with them for sure!

Nathan Lubin

23:48 19 May 18

I have had many run ins with heating and air conditioning repair companies and it’s never a good experience. Carl changed that. Yes, we needed a system replacement and that is never fun, but after many quotes and multiple other companies coming to inspect the situation, I found Carl. Carl worked with us and gave us the best price quote by over $1000. He was very professional and clean, making sure to put down drop cloths and wear shoe covers, meticulously putting them on and off every time he entered and left the house, and there were many. If you have heating or air conditioning needs, take your business here. You won’t be disappointed.Thank you Carl!

Vajee Niyomtes

17:57 26 Feb 18

Would highly recommend Carl Mosser's to anyone for his/her HVAC needs and concerns.

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Your Local Full-Service HVAC Company

From our efficient furnace repair service to our meticulous air duct cleaning service, you'll be glad you chose us as the air conditioning and heating contractor to keep your home comfortable year-round. Need a system replacement? We're also a heating equipment supplier, air conditioning system supplier, and boiler supplier!

Air Filtration Systems

Duct Cleaning

Complete Comfort

Fast, Reliable Service at Affordable Prices

You don't become a top-rated heating and air conditioning contractor without offering top-quality service! CW Mossor is pleased to have the flexibility to offer personalized service that allows us to really understand what our clients need and provide lasting solutions. No cookie-cutter fixes here; we'll always go above and beyond to make sure you're satisfied.

About Us

Furnace Replacement

Boiler Replacement

Heat Pump Replacement

AC Replacement

Our Company Was Built With You In Mind

What Sets Us Apart

Financing Options We offer flexible financing solutions to fit any budget, making it easier than ever to get the heating and cooling services you need.

Our Guarantee With every service, we guarantee quality workmanship and satisfaction. If you’re not completely happy, we’ll work to make it right, every time.

Local Experts Our skilled team knows the area inside and out, offering quality HVAC services backed by local knowledge and years of hands-on experience you can trust.

Speedy Service Count on us for quick, responsive service. We prioritize getting your HVAC system up and running as fast as possible without compromising quality.

Extended Hours Tired of having to take time off work to get your ac or heater serviced? We start work at 7:30 so we can get in, get it done, and get out of your hair.

Air Filters As a trusted air filter supplier, we provide high-quality filters that improve indoor air quality, ensuring your home’s air remains clean and healthy.

Financing Options

Serving the Northern Virginia Area

CW Mossor is a small local business that is pleased to offer quality residential heating, cooling, and air quality services in the Stephens City, VA area. We're happy to come to you if you're in the North Virginia region. Don't see your city listed? Check our service area map and feel free to give us a call.

Service Area

Keep Your HVAC System Running Optimally With Planned Maintenance

Our annual maintenance plan includes two seasonal visits, discounts on repairs, and priority service. Get the most out of your system's efficiency, stay comfortable year-round, reduce utility costs, and prevent breakdowns - all at a low monthly or yearly price.

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Your Friends And Neighbors Call CW Mossor First

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