Williams Heating & Air provides heating and cooling system installation and repair services, and FREE estimates and 24-hour emergency service to Harford, Cecil, and Baltimore Counties, and Southern Pennsylvania.
Location
Certified by Williams Heating & Air • Apr 26, 2026
Certified by Williams Heating & Air • Apr 26, 2026
Monday8:00 AM - 4:00 PM
Tuesday8:00 AM - 4:00 PM
Wednesday8:00 AM - 4:00 PM
Thursday8:00 AM - 4:00 PM
Friday8:00 AM - 4:00 PM
SaturdayClosed
SundayClosed
Reviews
4.6
20 reviews
5 stars
18
4 stars0
3 stars0
2 stars0
1 star
2
JM
Jon Miller
Apr 21, 2026
5.0
Williams Heating and Air installed our HVAC system when we had our house built in 1998 and have maintained the system ever since. They are always professional, knowledgeable and courteous. Most recently, our A/C unit was not producing cool air. They came out the next day. Their technician diagnosed the the problem in 5 minutes and had it fixed in 15 minutes. A top notch company.
DA
Diane Amoroso
Mar 19, 2026
5.0
Bryan identified the issue right away and had it fixed as soon as a part came in. I feel like he was beyond fair with pricing considering it was 2 visits. Very much so. Thank you.
FM
Frank Masin
Jul 26, 2020
5.0
Bill and his family run local business are the best! After calling a few different HVAC companies for replacement of our aging furnace and AC systems, they provided the pros and cons of what I was considering along with what ended up as the best value quote. Since the installation, they've been incredibly responsive to all of our questions. I recommend them highly.
Frequently Asked Questions About Williams Heating & Air
How quickly can you come out?
We understand that heating and cooling emergencies can't wait. Our team responds promptly to service calls, and we'll work with your schedule to arrange a convenient appointment time that meets your needs.
What services do you offer?
Williams Heating & Air provides comprehensive HVAC solutions including system installation, repair, maintenance, and replacement. We handle both residential and commercial heating and cooling needs with professional expertise.
What areas do you serve?
Our service territory covers Harford, Cecil, and Baltimore Counties in Maryland, as well as Southern Pennsylvania. We're proud to bring reliable HVAC services to communities throughout this region.
Are you licensed and insured?
Yes, Williams Heating & Air maintains all required licenses and carries comprehensive insurance coverage. This protects both our technicians and your property during every service call.
What systems do you work on?
Our experienced technicians service all major HVAC brands and system types, including central air conditioning, heat pumps, furnaces, boilers, and ductless mini-split systems. We stay current with the latest technology and equipment.
What should I do if my system stops working?
First, check your thermostat settings and circuit breakers. If the problem persists, contact Williams Heating & Air right away. We'll diagnose the issue quickly and provide reliable repair solutions to restore your comfort.
Do you offer service contracts?
Yes, we provide maintenance agreements designed to keep your HVAC system running efficiently year-round. These contracts include regular tune-ups, priority scheduling, and special pricing on repairs when needed.
What types of heating and cooling services does Williams Heating & Air provide?
Williams Heating & Air offers installation, repair, and maintenance services for heating and cooling systems.
Which areas does Williams Heating & Air serve?
They serve Harford, Cecil, and Baltimore Counties, as well as Southern Pennsylvania.
What are the working hours of Williams Heating & Air?
The company operates Monday through Friday from 8:00 AM to 4:00 PM and is closed on weekends.
What brands of heating and cooling products does Williams Heating & Air carry?
They carry Trane and Daikin brand products, including air conditioners, heat pumps, and heating systems.
Does Williams Heating & Air offer emergency services?
Yes, they provide 24-hour emergency service for heating and cooling systems.
What payment options are accepted at Williams Heating & Air?
They accept American Express, Check, Discover, MasterCard, and Visa.
How can customers contact Williams Heating & Air?
Customers can call their local phone at +1 410-658-3794, toll-free at +1 877-525-4328, email williams86hvac@yahoo.com, or visit their website at http://williamsheatandair.net.
Are there any schools near Williams Heating & Air's location?
Yes, Calvert Elementary School and Calvert Mustangs PTO are nearby, which may make the location convenient for families.
What local amenities are near Williams Heating & Air that customers might find useful?
Nearby amenities include Dollar General for shopping, Calvert CITGO gas station and convenience store, and restaurants like Brick Meeting House and Country Store.
Are there any recreational or community locations close to Williams Heating & Air?
Yes, customers can visit Calvert Regional Park for outdoor activities or the Cecil County Farmers' and Crafters' Market for local produce and crafts.
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