What are the opening hours?

Monday 7:30am - 4pm Tuesday 7:30am - 4pm Wednesday 7:30am - 4pm Thursday 7:30am - 4pm Friday 7:30am - 4pm

Marathon Service Company

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United States
Mardela Springs, MD
Marathon Service Company

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Industrial-Commercial HVACR & Residential HVAC Our experienced and licensed technicians are equipped to meet your needs and answer your questions.

For over 25 years, Marathon Service Company has provided the Delmarva Peninsula with premier HVAC service, installation, and maintenance…

We offer only the highest quality products and equipment from Mitsubishi Electric and Trane to bring you long-term and efficient heating and cooling solutions for your home or business. When you work with us, you will find that our customer service reflects how grateful we are for 25 years of your loyalty and support. They are trained to install, service, and maintain most makes and models of heat pumps, air handlers, furnaces, boilers, tankless water heaters, and more. As a Mitsubishi Diamond Contractor, we are committed to increasing the efficiency of your home’s HVAC and enable you to qualify for rebates from your energy provider… Give us a call for more information!

10/30/2026

✨💗 AND THE WINNER IS… JESSICA MURRAY!! 💗✨

Congratulations, Jessica! 🎉 We hope you love your prize! 💘

Thank you to ALL who entered and helped us support Breast Cancer Awareness Month! Your participation and generosity means so much to us! 💘

Marathon has loved going PINK for a PURPOSE! 💪🏻🎀✨💘

Happy Friday, everyone! 🥳🥳 We hope you have a great weekend! 🎀💗

10/29/2026

✨💗 ONE MORE DAY TO ENTER OUR GIVEAWAY RAFFLE! 💗✨

The countdown is ON! ⏰ There’s only ONE MORE DAY to enter Marathon Service Company’s Breast Cancer Awareness Fundraiser Raffle! 🎟️💗

Our raffle officially closes TOMORROW at NOON, and the lucky winner will be drawn and announced at 4:00 PM! 🎉 Don’t miss your chance to win an amazing prize while helping us make a difference in the fight against breast cancer! 💪🏻

Every entry helps support an incredible cause, with 100% of the proceeds going directly to the Susan G. Komen Foundation to support their mission to end breast cancer 🎗️💗

💌 $5 per entry & unlimited entries are welcome!
💌 VENMO:
💌 Please include your name and phone number so we can contact you if you’re our lucky winner!

We are SO grateful to all who have entered, donated and supported our fundraiser so far! 💗 Your generosity means so much to us and we would LOVE to see more entries come in during this final day!

Don’t wait until it’s too late! Enter today, spread the word and help us finish this fundraiser strong! ✨💗

Marathon has been proud to go PINK for a PURPOSE! 🎀 Thank you for helping us support the fight against breast cancer!

10/26/2026

Some people clock in and get straight to work, others need a quick photoshoot first 😎📸

Here’s to starting the week with a smile.
Happy Monday! 🤝

10/20/2026

Team Building Tuesday! 🤝

Last week, the Marathon crew traded in our tools for bowling balls and spent the evening enjoying some friendly competition, delicious pizza and lots of laughs! 🍕🎳

Taking time outside of work helps remind us that we’re more than just coworkers - we’re friends, teammates and one big family! ❤️ We are so grateful for this crew and all the hard work they put in every day.

We hope everyone is having a great week so far! While you’re here, don’t forget to enter our MARATHON GOES PINK GIVEAWAY! 💗🎟️ Every entry helps support an amazing cause, with a chance to win an incredible prize.

Have a fantastic Tuesday, everyone! ✨

10/16/2026

✨TRUNK OR TREAT 2026! 🎃👻🧜‍♀️

What a fantastic night! We had an absolute blast last night at Westside Intermediate School’s Trunk or Treat, and we’re so grateful to have been a part of such a fun-filled evening!

Check out our “Marathon’s Mermaids” trunk with a special appearance from two real mermaids themselves! 🧜‍♀️💕 We loved seeing everyone’s costumes, giving out treats and making memories with our amazing local community.

A huge THANK YOU to Westside Intermediate School for putting on such a wonderful event and to everyone who stopped by to visit our mermaid crew! 🫶🏼

We can’t wait for next year!! 🎃

10/13/2026

💗✨MARATHON GOES PINK FOR A PURPOSE!✨💗

In honor of Breast Cancer Awareness Month, Marathon Service Company is going Pink for a Purpose! Join us in supporting an incredible cause by entering our Fundraiser Raffle! 🎟️💕

We are giving away this beautiful, PINK YETI Carryall Tote packed with TONS of goodies! 🛍️ Not only will you have a chance to win an amazing prize, but you’ll also be helping us make a difference in the fight against breast cancer.

ENTRY GUIDELINES:
💗 $5 Per Entry - Unlimited Entries! - The more you enter, the more chance you have to win!
💗 Send Entries by Venmo to:
💗 Include your First/Last Name on Entries & a Phone Number to Contact if you win!
💗 Winner will be Drawn on Friday, October 30th! 🗓️
💗 100% of Proceeds will go to The Susan G. Komen Foundation 🎀

📍 Please note: Winner must be local to pickup the prize if you win

✨ Giveaway starts NOW! ✨

Thank you for helping Marathon go Pink for a Purpose! 💗

Good luck everyone! ✨💕

10/09/2026

May your Friday be short, your weekend be long, and your HVAC systems keep working! 🤞

Because nothing says TGIF like one last emergency call before the weekend 😅

But if you need us? You know we’ll always go the extra mile! 🏃‍♂️

Have a great weekend, from all of us at Marathon! 🫶🏼

📞 (410) 543-2962
📧 [email protected]

10/08/2026

The Best in the Business! 🤝

10/07/2026

✨ Midweek Mascot Moment ✨

Our mascot’s need your help settling their ongoing thermostat debate! 🌡️🥶🥵

What temperature is PERFECT for your house in the Fall? 🍂

Comment below:
🥶65-67° - Give me all the blankets!
😎68-70° - Just right!
🥵71-74° - I like it toasty!

Address

25600 Ocean Gateway
Mardela Springs, MD
21837

Opening Hours

Monday	7:30am - 4pm
Tuesday	7:30am - 4pm
Wednesday	7:30am - 4pm
Thursday	7:30am - 4pm
Friday	7:30am - 4pm

Telephone

+14105432962

Website

https://www.marathonserviceco.com/

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