Air Conditioning Repair | Air Cleaner | Rising Sun, MD

Harford: 410-893-0859

Cecil: 410-658-3794

Balto. Co 410-676-4711

877-525-4328 (HEAT)

Serving Harford, Cecil, and Baltimore Counties and Southern Pennsylvania

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24 Hour Emergency Service

On All Brands

Next Day Installation

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Your trusted air conditioning experts

When your air conditioner stops working, don't hesitate to call Williams HVAC. Since 1986, we have been servicing and installing every major air conditioner in the area. Whatever your A/C issue is — you can trust us to handle it.


  • Air cleaner

  • Air conditioning system installation

  • Air conditioning system sales

  • Air conditioning system service


All our workmanship is guaranteed, ensuring you receive top-notch repairs and installations. Call us for a FREE estimate on a  new installation. We work on residential and commercial units, and we service all major brands.

More services for your home or business

We carry quality Trane products and top-of-the-line accessories. We are locally and family owned. You can save money with our coupons and promotions. We're here for you with 24-hour emergency service.

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6 out of 6 customer reviews on Facebook gave us 5 stars.

- Williams HVAC

For more information about any of our services, contact:

Cecil: 410-658-3794

Harford: 410-893-0859

Toll-free: 877-525-4328 (HEAT)


24 Hour Emergency Assistance




Williams HVAC Services has been serving Harford, Cecil, and Baltimore Counties in Maryland and Southern Pennsylvania.

Contact Williams HVAC

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