Brand Certified
One Hour Air Conditioning & Heating®
4.8(352 reviews)
Certified by One Hour Air Conditioning & Heating® • Jun 14, 2026
Business Details
9815 Watkins Road, Gaithersburg, MD
20882, United States
Certified by One Hour Air Conditioning & Heating® • Jun 14, 2026
(301) 396-7481
Certified by One Hour Air Conditioning & Heating® • Jun 14, 2026
https://www.onehourheatandair.com/rockville/
Certified by One Hour Air Conditioning & Heating® • Jun 14, 2026
About
Certified by One Hour Air Conditioning & Heating® • Jun 14, 2026
HVAC Contractor
At One Hour, we respect you, we respect your time, and, most importantly, we respect the trust that you put in us to keep your home comfortable. It’s why we back all of our work with a 100% customer satisfaction guarantee for two years, and it’s why we’re always on time—guaranteed.
Location
Certified by One Hour Air Conditioning & Heating® • Jun 14, 2026
One Hour Air Conditioning & Heating®
9815 Watkins Road, Gaithersburg, MD
20882, United States
Hours
Certified by One Hour Air Conditioning & Heating® • Jun 14, 2026
MondayOpen 24 Hours
TuesdayOpen 24 Hours
WednesdayOpen 24 Hours
ThursdayOpen 24 Hours
FridayOpen 24 Hours
SaturdayOpen 24 Hours
SundayOpen 24 Hours
Reviews
4.8
352 reviews
5 stars
323
4 stars
18
3 stars2
2 stars2
1 star
7
- HFHinkel Family5 days ago5.0Mr Gilmer was very courteous and professional. He did his job quickly with care and fixed the problem with our air-conditioning system very efficiently.
- LDLisa DeeJun 10, 20265.0Mr Gilmer was working good on my system He did an excellent job explaining everything to me, too.
- KHkathleen harmisonJun 4, 20265.0Ivery was friendly, communicative, and thorough. He explained what he was doing and what needed to be done to keep our air conditioner running smoothly through the summer.
- JGJoshua GilesJun 4, 20265.0Mr. Gilmer went above and beyond during the service of our AC unit. He took his time and answered all questions. Simply put he was terrific!
- JPJack PotthastJun 2, 20265.0Mr Gilmer was very polite and patiently explained the issues with our air conditioning unit. He provided us with options and did not pressure us into making immediate decisions that could cost thousands of dollars.
Brand Certified Facts from One Hour Air Conditioning & Heating®
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Certified June 14, 2026Yext Knowledge Graph
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