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Serving: Howard, Baltimore & Carroll Counties



Your Neighbor's Choice or HVAC - Heating and Air Conditioning Service Ellicott City, MD

Family Owned and Operated Since 1971

Special Offers, Affordable Rates, Dependable Service

Family Owned and Operated Since 1971

Special Offers

Affordable Rates

Dependable Service

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Award-Winning Service in Howard and Baltimore Counties for Over 50 Years

Put your confidence in our family-owned and -operated company to help you choose and maintain the systems that will help you keep your home comfortable and safe throughout the year.


We have earned awards from Angi (formerly Angie's List) for 12 straight years. We are proud to be a BBB-accredited business. We provide caring, quality service to your home as if it were our own. Call No-Frost A/C & Heating today for service.

Read Customer Testimonials

Why No-Frost A/C & Heating Is Your Choice for Home Comfort

Serving Over 30,000 Customers

Award-Winning Service

Over 4 Decades of Exemplary HVAC Work

Free Estimates on New Equipment

2-Year Labor Warranty on Installations

Manufacturers' Warranties

Air Conditioner Installation

Keep cool all summer long with a new A/C unit


Upgrading your air conditioner is a smart move. Today's A/C units are more energy efficient than ever before. You can cut your utility bills and stay comfortable through all the hot months.

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Air Conditioner Repair

Get prompt service for your air conditioner


An air conditioner that won't cool can be dangerous in the summer heat. You can rely on No-Frost A/C & Heating for fast, professional maintenance and repairs for all air conditioner makes and models.

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Indoor Air Quality System Services

Get a FREE tune-up with the purchase of a whole-house humidifier


When you have No-Frost A/C & Heating install a new Aprilaire whole-house humidifier, we'll give you a FREE tune-up on your HVAC system. Call us today for all the details on indoor air quality systems.

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Heating System Repairs and Installations

Stay warm this winter with a heating system you can trust


When Old Man Winter does his worst, you'll be ready when you have our technicians take care of your heating system. From prompt repairs to full system replacements and installations, we do it all.

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Water Heater Repairs and Installations

No more cold showers and half-clean laundry


If your water heater can't keep up with your family's needs, it's time to replace it. We sell and install high-quality water heaters from A.O. Smith. Let us help you find the right one for your home.

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Gas Appliance Safety

Stay safe with annual gas appliance inspections


Natural gas is an affordable fuel for many home appliances, but it's important to be safe when you use it. Call No-Frost A/C & Heating for annual checkups on your gas stove, water heater, and dryer.

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Satisfied Customer Reviews

$150 Special
Low-Cost Maintenance Plan
Call us about our maintenance plan with 10% off parts. Package includes 2 tune-ups — one in the spring for air conditioning and one in the fall for heating. No-Frost A/C & Heating (410) 461-6422
Click to use coupon
EXPIRED
FREE HVAC Checkup
Free HVAC Maintenance Checkup With the Purchase of a Whole-House Humidifier and Installation
Cannot be combined with other offers. No-Frost A/C & Heating (410) 461-6422
Click to use coupon
EXPIRED

Visit our Special Offers page to see all our current deals and coupons. Be sure to ask us about our Carrier rebates!

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No-Frost A/C & Heating

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