Markool Heating.Cooling.Plumbing

heating & cooling contractor, well, sewer cleaning company,

About us

Welcome to Markool Heating & Cooling. We proudly provide the highest quality of service and craftsmanship for each aspect of your project. Our depth of knowledge and experience solidify our belief that customer service stands as the highest priority. We eagerly look forward to working with you and making your vision a reality. Give us a call, text, or email today, and let us get started!

Business highlights

6 years of trusted experience
Emergency Services Offered

Amenities

Free Estimates
Yes
Emergency Services
Yes


Accepted payment methods

CreditCard

Reviews

4.717 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
88%
4
6%
3
0%
2
0%
1
6%


Rating CategoryRating out of 5
quality
4.7
value
4.6
responsiveness
4.7
Showing 1-17 of 17 reviews

Chase R.
08/2024
5.0
Woke up this morning to my hvac leaking and contacted Markool. I have never used them before and was in a pinch. They fit me right in this morning and were out at my house within 2 hours. The tech stepped in the door and placed covers for his shoes so he did not track in any dirt which was impressive! The tech was very professional and super friendly. Problem was diagnosed and FIXED within an hour. The price was extremely reasonable to the point I was shocked in a good way (expecting a higher price). Anyways, I will most certainly be a returning customer. Thank you Markool Heating Cooling Plumbing.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Jim L.
11/2023
0.5
The old bait and switch was done by them. I was quoted by Chris Markoe one of the owners a complete Carrier system inside and outside my home. They pushed me for install which I took a day off to get done. The crew was great until we did final inspection and the furnace unit installed was a BRYANT. I questioned it and was told it was the same as a Carrier by the crew ITS NOT different bells and whistles and most importantly Shorter WARRANTY. They called Chris who told me it was made by carrier and one quoted was on Backorder. No communication to me just took it upon himself to put an inferior system in and charge me the same amount. So very dissatisfied considering it was a referral from one of their own employees. Been a week and no follow up or ETA of the Carrier unit. I hope this review encourages other to look at there agreement with them and make sure you got what you paid for especially warranty. Poor business practice.

Rating CategoryRating out of 5
quality
0.5
value
0.5
responsiveness
0.5

$15,000

Colleen B.
08/2022
5.0
Just started working with Markool this summer and they have been fantastic! When I need service, they are so fast and every person we have interacted with has been polite, knowledgeable and personable. We unexpectedly needed to replace our system during a heat wave and they were super. So responsive and quick. I would highly recommend Markool for all of your HVAC needs!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Brian G.
06/2021
5.0
Was looking for a company to service/maintenance. Called them and shared my concerns. Scheduled and appointment within 3 days. Technician was polite and professional. Could tell he knew about AC unit and his profession. Fair cost/pricing Highly recommend.

Rating CategoryRating out of 5
quality
4.5
value
4.5
responsiveness
5.0

Yes, I recommend this pro
$385

Philip S.
04/2021
5.0
Turned on the AC this morning to find out was blowing hot air, called up a few different companies who wanted minimum 100 bucks to come out blah blah blah, called up Markool and got connected with a technician. The technician helped me troubleshoot the issue, and have me a quick fix that will last until they make it out tomorrow to do the permanent fix. I'll be using them for all my AC needs in the future!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$25

Dezmen K.
11/2020
5.0
Chris was very easy to work with throughout the whole transaction hes very understanding and really wants to keep the customer happy! This company got to the job asp for me and my family! Thanks to you guys we no longer have a carbon monoxide leak!!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Thomas F.
05/2020
5.0
Quick and outstanding service Good job

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Pat S.
05/2020
5.0
They were on time. Chris explained everything to me.They were honest, personable, and very knowledgeable. I will be calling them in the fall to do annual maintenance for sure!! I wish all contractors were this nice to work with!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Tom C.
04/2020
5.0
Very efficent, in and done in 1/2 hour. Very professional and knowledgeable. I highly recommend this small business.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Sandy D.
03/2020
5.0
Professional and efficient. Chris did an A/C repair on a part under warranty from another company. He quickly coordinated getting the new part through the warranty and completed the repair quickly. Will recommend to others.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Michael M.
03/2020
5.0
Very good service!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$5,890

Barbara W.
02/2020
5.0
Chris found a warranty that saved us money that three other companies came in and did not notice. Very thankful we found him.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Andrew H.
01/2020
5.0
Very professional. I would highly recommend for repair and installation of new systems.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$100

Albert T.
12/2019
5.0
Markool was super professional, kind, and skillful. A few things really stood out. 1) He did a furnace flue piper install that he could have charged us much more for if he had wanted to take advantage of us - but he was honest and we paid less than we feared. He also went the extra mile helping my wife and I through a warranty claim with the furnace company so that we did not have to pay extra part costs. It was an unexpected need, but he was prepared with the part and worked with the manufacturer to get us covered. He was even able to better a previous repair. 2) On a home humidifier install, he made himself available on short notice, took time to answer our questions, and then showed us how to maintain the equipment ourselves so we wouldn't need to shelve out more for additional contracting work - even from him. Grateful!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$600

Paul K.
11/2019
5.0
Excellent service by MarKool. First it is a small company so when you call them you talk directly to the person doing the work. Second they are highly responsive. Third at the home they are very personable and answer all questions in detail. Fourth In fixing my problem they showed they are highly skilled and experienced in HVAC in this case as it pertains to gas furnace operation.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Herbert M.
09/2019
5.0
Excellent responsive service

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

    Contact information

    5304 Unit C Kings Court, Frederick, MD 21703

    http://www.markoolhvac.com

    Service hours

    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

    Licensing

    Licensed*

    Trade License Number
    104301
    Trade License Locale
    MD
    Trade License Expiration
    01/13/2026
    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 & cooling contractor,
    well,
    sewer cleaning company,
    air duct cleaner,
    water softener installer,
    gas leak repair service,
    water heater installer,
    drain cleaning company,
    plumber

    FAQ

    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

    Markool Heating.Cooling.Plumbing accepts the following forms of payment: CreditCard
    Yes, Markool Heating.Cooling.Plumbing offers free project estimates.
    No, Markool Heating.Cooling.Plumbing does not offer eco-friendly accreditations.
    No, Markool Heating.Cooling.Plumbing does not offer a senior discount.
    Yes, Markool Heating.Cooling.Plumbing offers emergency services.
    No, Markool Heating.Cooling.Plumbing does not offer warranties.

    Contact information

    5304 Unit C Kings Court, Frederick, MD 21703

    http://www.markoolhvac.com

    Service hours

    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