Markool Heating Cooling Plumbing

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Frederick, MD
Markool Heating Cooling Plumbing

Local company here to help you with all your heating, cooling, plumbing and air quality needs.

Founded in 2016, Markool Heating & Cooling is the name to trust when it comes to heating and air conditioning in Frederick, MD, and the surrounding areas. From our professional team and great Carrier products to free estimates and competitive pricing, we design our full suite of services to earn your complete satisfaction. We have extensive experience with a wide range of both residential and comm

ercial heating, air conditioning, air quality, and plumbing services. If you're interested in maintaining or improving the comfort and efficiency you enjoy indoors, we're the right team for the job. Contact us today to schedule your next HVAC or Plumbing appointment!

06/21/2026

💙 Happy Father's Day to all the amazing dads, grandfathers, stepdads, and father figures! 💙

Today we celebrate the men who work hard, support their families, and always show up when it matters most. From all of us at Markool Heating • Cooling • Plumbing, we hope your day is filled with love, laughter, and time spent with the people who matter most.

📸 Comment a photo of your dad below!

👨‍🔧 Tag a dad who deserves a shoutout (or might need us for their HVAC or plumbing needs)!

Whether you're spending the day grilling, relaxing, or tackling a few projects around the house, we hope you have a fantastic Father's Day!

📅 Book Online: https://bit.ly/markoolbooking
📞 Call Today: 301-732-4244

📍 Proudly Serving: Frederick, Urbana, Spring Ridge, New Market, Walkersville, Middletown, Mount Airy, Ijamsville, Brunswick, Thurmont, Myersville, Libertytown, Jefferson, and surrounding areas.

06/20/2026

Another happy customer! ⭐⭐⭐⭐⭐

Thank you, Trey, for trusting Markool Heating • Cooling • Plumbing with your home!

"Great small business that does awesome work. Replaced 2 HVAC systems for me and I was extremely satisfied with the work! Highly recommend their tech, Hunter!"

We truly appreciate your kind words and are proud to have team members like Hunter delivering the quality service our customers deserve.

Thinking about replacing your HVAC system? We'd love the opportunity to earn your trust, too.

📅 Book Online: https://bit.ly/markoolbooking

💻 Get an Online Replacement Quote: https://markoolhvac.com/shop/ #/journey/name_and_phone

📞 Call Today: 301-732-4244

📍 Proudly Serving: Frederick, Urbana, Spring Ridge, New Market, Walkersville, Middletown, Mount Airy, Ijamsville, Brunswick, Thurmont, Myersville, Libertytown, Jefferson, and surrounding areas.

06/19/2026

🎉 School's Out... Summer Comfort Starts Now! ☀️❄️

With the kids home for summer, make sure your home stays cool and comfortable all season long. If your HVAC system is struggling to keep up, now is the perfect time to explore your replacement options.

Get a fast, hassle-free online replacement quote in just minutes!

💻 Get Your Replacement Quote:
https://markoolhvac.com/shop/ #/journey/h_v_a_c_system_quote

📅 Book Online:
https://bit.ly/markoolbooking

📞 Call Today:
301-732-4244

📍 Proudly serving Frederick, Urbana, Spring Ridge, New Market, Walkersville, Middletown, Mount Airy, Ijamsville, Brunswick, Thurmont, Myersville, Libertytown, Jefferson, and surrounding areas.

06/18/2026

🚨 Don't Miss Out — June Savings End Soon! 🚨

Wondering how much it will cost to have your air ducts professionally cleaned?

💻 Get a FREE online duct cleaning quote in just a few minutes—no phone call required!

And here's the best part...
🎉 Take 10% OFF your duct cleaning when you book in June!

Clean air ducts can help:
✅ Improve indoor air quality
✅ Reduce dust throughout your home
✅ Increase HVAC efficiency
✅ Help your system run its best

📅 Get Your FREE Quote Today: https://markoolhvac.com/shop/ #/journey/name_and_phone

📞 Call Us: 301-732-4244
💻 Book Online: https://bit.ly/markoolbooking

Proudly serving Frederick, Urbana, Spring Ridge, New Market, Walkersville, Middletown, Mount Airy, Ijamsville, Brunswick, Thurmont, Myersville, Libertytown, Jefferson, and surrounding areas.

06/16/2026

🌡️ It may have been cool yesterday... but summer isn't going anywhere! ☀️

If your AC is struggling to keep up, now is the perfect time to service or replace your system before the next heat wave arrives.

✅ Improve efficiency
✅ Lower energy bills
✅ Stay comfortable all summer long
✅ Avoid unexpected breakdowns

Whether you need a quick repair, seasonal maintenance, or a brand-new system, the Markool team is here to help!

Free Online Quote: https://markoolhvac.com/shop/ #/journey/h_v_a_c_system_quote
📅 Book Online: https://bit.ly/markoolbooking
📞 Call Us Today: 301-732-4244

📍 Proudly serving Frederick, Urbana, Spring Ridge, New Market, Walkersville, Middletown, Mount Airy, Ijamsville, Brunswick, Thurmont, Myersville, Libertytown, Jefferson, and surrounding areas!

06/13/2026

🎉📱 We’re on TikTok! 📱🎉

Want HVAC tips, plumbing advice, behind-the-scenes content, team spotlights, project photos, and maybe even a few laughs along the way? 👀💧❄️🔥

Come follow Markool Heating, Cooling & Plumbing on TikTok!

👉 https://www.tiktok.com/.hvac.plum?_r=1&_t=ZP-97AtgD9vowY

Give us a follow, like a few videos, and let us know what content you’d like to see next! 🎥🏠

📅 Book Online: https://bit.ly/markoolbooking
📞 Call Us Today: 301-732-4244

📍 Proudly serving Frederick, Urbana, Spring Ridge, New Market, Walkersville, Middletown, Mount Airy, Ijamsville, Brunswick, Thurmont, Myersville, Libertytown, Jefferson, and surrounding areas!

06/11/2026

🏠 Before & After Duct Cleaning
Look at the difference! 👀

➡️ Before: Heavy dust and debris coating the ductwork
➡️ After: Clean airflow pathways helping your HVAC system perform at its best

Dirty ducts can contribute to:
✔ Reduced airflow
✔ Higher energy bills
✔ Excess dust throughout your home
✔ Poor indoor air quality

A professional duct cleaning can help improve comfort, efficiency, and air quality throughout your home.

🎉 June Special: Get 10% OFF Duct Cleaning all month long! Don't miss this opportunity to improve your home's air quality while saving money.

📅 Book Online: https://bit.ly/markoolbooking

📞 Call Today: 301-732-4244

🌐 Get a Duct Cleaning Quote: https://markoolhvac.com/shop/ #/journey/name_and_phone

📍 Proudly serving Frederick, Urbana, Spring Ridge, New Market, Walkersville, Middletown, Mount Airy, Ijamsville, Brunswick, Thurmont, Myersville, Libertytown, Jefferson, and surrounding areas.

06/10/2026

🚿 Summer Is the Perfect Time to Replace Your Water Heater! 🚿

Summer is here, and there’s no better time to upgrade your water heater before it becomes an unexpected problem.

If your water heater is:
🔧 Over 10 years old
💧 Leaking or showing signs of rust
🚿 Running out of hot water too quickly
🔊 Making strange noises

It may be time for a replacement!

Enjoy reliable hot water, improved efficiency, and peace of mind all summer long. 🌞💧

🔥 June Special: $400 OFF Tankless Water Heater Installation!

📅 Book Online: https://bit.ly/markoolbooking
📞 Call Us Today: 301-732-4244

📍 Proudly serving Frederick, Urbana, Spring Ridge, New Market, Walkersville, Middletown, Mount Airy, Ijamsville, Brunswick, Thurmont, Myersville, Libertytown, Jefferson, and surrounding areas!

06/09/2026

👋✨ Meet Kaitey! ✨👋

If you've called Markool, chances are you've talked to Kaitey, one of the friendly voices behind our phones! ☎️💙

As our CSR & Dispatcher, Kaitey helps keep everything running smoothly by scheduling appointments, assisting customers, and making sure our technicians get where they need to be. She's dedicated to providing excellent customer service and helping homeowners have the best experience possible from the moment they contact us.

We're grateful to have Kaitey as part of the Markool family! 💧❄️🔥

📅 Book Online: https://bit.ly/markoolbooking
📞 Call Us Today: 301-732-4244

📍 Proudly serving Frederick, Urbana, Spring Ridge, New Market, Walkersville, Middletown, Mount Airy, Ijamsville, Brunswick, Thurmont, Myersville, Libertytown, Jefferson, and surrounding areas!

06/08/2026

🎉🎂 Happy Belated Birthday, Hunter! 🎂🎉

We may be a little late thanks to some Facebook issues, but we couldn't let this one pass by!

Please join us in wishing a belated Happy Birthday to our Lead Installer & Service Technician, Hunter McGlaughlin, whose birthday was on June 4th! 🥳

Hunter works hard every day to take care of our customers and represent Markool with professionalism, skill, and a great attitude. We are incredibly thankful for everything he does for our team and our customers. 💧❄️🔥

Drop a 🎉 in the comments and help us wish Hunter a very Happy Belated Birthday!

📅 Book Online: https://bit.ly/markoolbooking
📞 Call Us Today: 301-732-4244

📍 Proudly serving Frederick, Urbana, Spring Ridge, New Market, Walkersville, Middletown, Mount Airy, Ijamsville, Brunswick, Thurmont, Myersville, Libertytown, Jefferson, and surrounding areas!

Address

5304C Kings Court, C
Frederick, MD
21703

Telephone

+13017324244

Website

http://www.markoolhvac.com/

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