Farnen & Dermer, Inc. logoApproved Pro
Approved Pro

Farnen & Dermer, Inc.

Ductless A/C Service, Gas Heating and Furnace Service, Central A/C Installation,

About us

Our local and family owned and operated company at Farnen & Dermer has been a trusted name in HVAC for over 100 years. We offer expert heating, cooling, indoor air quality, and plumbing services to residential properties in Owings Mills and throughout Baltimore County. Our experienced, licensed, and factory-trained technicians will be there in a flash—proudly offering same-day appointments and 24/7 emergency repairs when you reach out to us by phone. If you need heater or AC replacement, we offer free estimates and flexible financing options, so a high-quality system doesn’t break the bank. From speedy AC repairs and heating maintenance to air filtration installation and boiler replacement, our team has you covered—backing up all our services with a 100% satisfaction guarantee.

Business highlights

Emergency services offered
123 years of experience

Amenities

Emergency Services

Yes

Free Estimates

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
3.720 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
60%
4
5%
3
0%
2
0%
1
25%

Filter reviews by service

Showing 1-20 of 20 reviews
Dan W.
Sep 2023
0.5
Central A/C Service or Repair
THIS COMPANY IS SCAMMING PEOPLE!!! -On 6/24/21, Farnen and Dermer installed a brand new YORK HVAC system in my home. Everything appeared to be fine, and there were no issues for 2 years. -On 8/28/23, I noticed an extremely loud buzzing coming from my outside unit, so I called them to come check on the problem. My unit was still cooling, but extremely loud. Glen A. showed up to diagnose the problem and seemed like a nice enough guy. After about an hour, he informed me that my entire indoor and outdoor unit need full replacement for a total of $10,900. (I paid $7,500 just 2 years earlier). I said, surely this was covered under warranty because the unit was only 2 years old? He then informed me that it was not because it was â struck by lightning and the warranty does not cover an act of god. -At this point in my head things were not adding up, especially since the unit was still cooling, both of my neighbors units were fine (townhouse) and he did not even check the inside unit. I told Glen I need to think about the replacement because that is a lot of money that I do not have at the time. Glen disconnected my outside unit completely before he left with the hottest week of the summer upcoming (95F-98F) and charged me $189 for the visit. -I am lucky enough to have a Fire Marshall as a good friend to ask him about the situation. This guy sees lightning strikes pretty frequently. He told me there is no way that my unit was struck by lightning based off of what I was seeing and also because it would have gotten to all of my neighbors units (townhouse). He informed me it is literally impossible. THE UNIT WAS STILL COOLING! -I decided to get a 2nd opinion from another company. The other company came out and told me that my compressor was bad and that there was no lightning strike to speak of. They also informed me that it was covered under the warranty and they could fix it. The technician said that he noticed the wiring on the outside unit was incorrect. There was a red wire crossed with a black wire. He said that is exactly why my 2 year old compressor went out. This company even put their findings in writing for me. They replaced my parts and got me up and running for 82% LESS THAN F and D! -I am not the only person this has happened to. It appears to be standard practice. You can see the attached pictures of reviews from other people in the same boat on the Better Business Bureau website. I will be submitting a complaint through BBB and demanding a full refund. This is pure predatory behavior and it is unacceptable!

Jennifer M.
Jul 2023
0.5
Central A/C Service or Repair
$49,500
Farnen and Dermer completely ripped me off! My unit is still under the 10 year warranty which means parts are covered and I am responsible for labor. I confirmed this on the phone when I made my appointment. They fixed my unit today within 30 minutes and charged me $450 dollars for 30 minutes of labor! They first told me it would be $495 and I was shocked and upset and asked the technician to call the office and confirm this is the charge for 30 minutes of labor. The technician called the office and confirmed that was the price of 30 min of labor, but did me favor and reduced it to $450 with a free service visit in the fall. What a scam!! I explained this was unacceptable to charge someone $450 for 30minutes of HVAC labor. A labor change of $450 should be clearly communicated when I made the service call confirming my unit was under warranty. Instead they did the work, without telling me the price, and dropped this ridiculous bill on me and I was stuck!! I would have NEVER agreed to a 30 minute labor bill of $450. What a SCAM and RIPOFF!! Had I known this up front, I would have went to another company. F and D company and warranty is a RIPOFF and SCAM!!!!

Isaac H.
Jul 2022
1.0
Central A/C Installation
We purchased a house that has a new HVAC system from Farnen and Dermer. Within 1 year of us moving in our AC had several massive issues that Farnen and Dermer refused to honor because *we were not the buyers of the system*. Aside from that we found out that due to their neglect when installing the HVAC they forgot to wrap and insulate it, leading to a leek and water damage. Avoid at all costs.

A W.
Jul 2019
1.0
$2,000,000
Do NOT hire them for extended maintenance plan. When the AC GUY came out for the annual maintenance ... he was horrible. He was unfriendly, unprofessional.... as he was putting our AC back together, he dropped some screws. I handed them to him(he didnâ t pick them up) & he said they were NOT IMPORTANT. These are newer systems((a/c & furnace purchased thru them)). When I called the office & spoke to the OWNER, he said this was TRIVIAL. & we were wasting his time & admitted it was a new employee. HE was unfriendly & uncaring. SHOP ELSEWHERE for maintenance plan!!

Jerry Y.
Apr 2018
5.0
Yes, I recommend this pro
$1,000,000
Ed and his team did a wonderful job, and the cost was reasonable. You can tell that they are honest and professional people.

Kenneth F.
Aug 2017
4.0
Central A/C Installation
Yes, I recommend this pro
good experience

Jill A.
Aug 2017
5.0
Central A/C Installation
Yes, I recommend this pro
$740,000
Fantastic work! I am very pleased with the project and would certainly recommend them to anyone needing a complete HVAC system. Outstanding in all respects.

Kathy T.
Jun 2017
4.5
Central A/C Service or Repair
Yes, I recommend this pro

Larry F.
May 2017
5.0
Central A/C Installation
Yes, I recommend this pro

B. W.
Apr 2017
5.0
Gas Boiler or Radiator Heating System - Install
Yes, I recommend this pro

Patrick T.
Apr 2017
0.5
Gas Boiler or Radiator Heating System - Repair
$10,000
I had one of their techs come out an evaluate my boiler which was showing low pressure. The tech spent about twenty minutes looking at my system and then quoted me nearly $7,000 for a new boiler and then charged me nearly $100 for coming out. I got a second opinion weeks later and it turned out the boiler just needed to be pressurized by turning a single knob. I would never call on them to evaluate a problem. It seems they are in the business of upsetting as opposed to repairing.

Allan W.
Mar 2017
5.0
Gas Boiler or Radiator Heating System - Repair
Yes, I recommend this pro
BEST of the best!!! do not even shop around. Great service. Great team work! Great work ethics, these people REALLY CARE about their customers. they sent an entire team - 9 men & 6 trucks -  & installed a furnace/boiler & air conditioner in one day. I truly can not say enough about the  professionalism & integrity of this company!!!!!  they help make AMERICA GREAT AGAIN with their excellent amazing service!!

Mrs M.
Mar 2017
5.0
Heat Pump Installation and Replacement
Yes, I recommend this pro
We've always been very pleased with their work! We have used them for over 30 years, for multiple projects, at two different properties. They are always on schedule, they have a fair price & they clean up after the work is done!

Jerome S.
Jun 2014
5.0
Heat Pump Installation and Replacement
Yes, I recommend this pro
Excellent service responsibility responsiveness and quality of workmanship. Rich was outstanding.

Richard C.
May 2014
4.5
Central A/C Installation
Yes, I recommend this pro
I had a 13 SEER A/C and gas furnace replaced with a new 16 SEER system. Farnen and Dermer offered the best value out of four estimates I received. Their customer service and sales personnel were professional and knowledgeable and able to quickly respond to requests and provide answers to questions. They were able to begin the work very quickly and did a thorough job. The 60-month no-interest financing was very important in my decision.

Greg S.
Jan 2014
4.5
Gas Furnace / Forced Air Heating System - Repair
Yes, I recommend this pro
The repair man was extremely courteous & professional. They did exactly what they said they would do, and did everything promptly.

Rochelle G.
Oct 2013
5.0
Central A/C Installation
Yes, I recommend this pro
All calls were returned promply, All work done as promised all set times were exact.

Theresa N.
Aug 2013
5.0
Heat Pump Installation and Replacement
Yes, I recommend this pro
Great job! Thanks for taking care of my problem so quickly.

Karen G.
Apr 2012
N/A
Gas Furnace / Forced Air Heating System - Repair
Yes, I recommend this pro
II really liked the fact that they charge a diagnosis fee, and then they will apply the fee towards the price of the job if you chose to have them do the work. I have had �pay by the hour or minute� pricing, and you don�t know what it�s going to cost to get the job done. He was very professional, knowledgeable and did a great job. I would definitely use them again!

Janice F.
Feb 2012
N/A
Gas Furnace / Forced Air Heating System - Repair
Yes, I recommend this pro
Keep Up the good work. Thanks,

Licensing

Licensed*

Trade License Number

9402

Trade License Locale

MD

Trade License Expiration

10/01/2025

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 Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Farnen & Dermer, Inc. is currently rated 3.7 overall out of 5.
Monday: Open All Day Tuesday: Open All Day Wednesday: Open All Day Thursday: Open All Day Friday: Open All Day Saturday: Open All Day Sunday: Open All Day
Farnen & Dermer, Inc. accepts the following forms of payment: CreditCard
Yes, Farnen & Dermer, Inc. offers free project estimates.
No, Farnen & Dermer, Inc. does not offer eco-friendly accreditations.
No, Farnen & Dermer, Inc. does not offer a senior discount.
Yes, Farnen & Dermer, Inc. offers emergency services.
Yes, Farnen & Dermer, Inc. offers warranties.

Contact Information

10500 Reisterstown Road, Owings Mills, MD 21117

Service Hours

Sunday:Open All Day
Monday:Open All Day
Tuesday:Open All Day
Wednesday:Open All Day
Thursday:Open All Day
Friday:Open All Day
Saturday:Open All Day
Share project details to get started.