Certified by Williams Heating & Air • May 17, 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
5/25/20268:00 AM - 4:00 PM
7/4/2026Closed
9/7/20268:00 AM - 4:00 PM
11/26/20268:00 AM - 4:00 PM
12/25/20268:00 AM - 4:00 PM
1/1/20278:00 AM - 4:00 PM
Reviews
4.7
28 reviews
5 stars
26
4 stars0
3 stars0
2 stars0
1 star
2
CC
cecil
3 days ago
5.0
i was having trouble with my furnace.the dealer working on it had replaced many parts,even the fire box.in the middle of a snow storm still no heat.i saw bill from williams heating he said he would sead a man out.williams fixed my furnace that day.Williams has been servicing my heating and air ever since.If you need a repair call Williams Heating And Air.
RU
Rinbee User
5 days ago
5.0
Bill has been successfully servicing our two heat pumps for more than 25 years. Every time I think it’s time to replace one, Williams keeps it going. He has never tried to upsell us, emphasizing repair over replacement.
PG
Pat Grieco
May 12, 2026
5.0
Williams personal are amazing. They professional, meet on time commitments, great communication and workmanship is outstanding. I have using Williams for 31 years. I’m very satisfied
EM
Eric Mepham
May 8, 2026
5.0
Have had a service contract with Williams heating for several years. They have always been punctual, efficient and good communicators. They have been honest about the condition of our system and recommend repairs when necessary without any upselling. No mess, no fuss I would definitely recommend this company.
JM
John Meisz
May 6, 2026
5.0
Have been using Williams Heating and Air Conditioning for years now. They have always been readily available in an emergency, and gave us a fair price and quality work on installing a new AC unit and furnace. They are the only company I call for any HVAC needs.
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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