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Design Flow Heating & Cooling LLC

5.0

About this business

Location details

5975 Exchange Dr Suite C, Eldersburg, MD, 21784, United States

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WeekdayScheduleStatus
Mon8:00 a.m. to 4:30 p.m.
Tue8:00 a.m. to 4:30 p.m.
Wed8:00 a.m. to 4:30 p.m.
Thu8:00 a.m. to 4:30 p.m.
Fri8:00 a.m. to 4:30 p.m.
SatClosed
SunClosed
5.0478 reviews
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Dawn Fiscella's profile image
Dawn Fiscella 
5 days ago

Updated Review May 2026: The prior heating repair completed by DesignFlow did solve our heating problem but then our AC took a nose dive a few weeks later (our whole system is 25 yrs old). Their technicians were dispatched again, they came right away- this time for our AC (bc we went from cold days to warmer days end of April) They told us our unit is slowing going to fail us once the temps hit 80°. They were right! Temps hit 80+ and boom- no cool air. We decided to replace our entire hvac system- furnace & AC. DesignFlow to... read more

Vincent Culotta's profile image
Vincent Culotta 
2 weeks ago

Nice work! 

Denise Louder's profile image
Denise Louder 
3 weeks ago

We were able to get an appointment scheduled the next day and the technicians Ashton and Daniel were knowledgeable on my geothermal system and very courteous. Resolved an issue that several other companies were not able to identify. 

Natelie Tobery's profile image
Natelie Tobery 
a month ago

Design Flow is a wonderful company! Each employee that I encounter is joyful and professional! Ashton is the most recent technician that provided a wonderful experience; his positivity and swift delivery of excellent service is unmatched. I appreciate that I can trust a local company! 

Dawn Fiscella's profile image
Dawn Fiscella 
a month ago

Excellent experience! Our furnace stopped working. We called Design Flow. They answered the phone, the Representative was friendly & informative. Scheduling was simple. Ashton & Daniel arrived same day, on time, and got right to work. They diagnosed the problem, completed the repair efficiently, we now have heat (yay!), and these two men were very knowledgeable, extremely professional, friendly and so kind. I highly recommend Design Flow. They offer annual maintenance plan options too! A company with integrity and a commitme... read more

Frequently asked questions about Design Flow Heating & Cooling LLC

How is Design Flow Heating & Cooling LLC rated?

Design Flow Heating & Cooling LLC has a 5 star rating with 478 reviews. 

When is Design Flow Heating & Cooling LLC open?

Design Flow Heating & Cooling LLC is closed now. It will open at 8:00 a.m. 

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