HVAC in Gaithersburg, MD
Gaithersburg's Professional HVAC Services Company
Dealing with HVAC problems in Gaithersburg, MD, can be a nightmare. From furnaces breaking down in freezing weather to AC units failing during scorching summers, the discomfort can feel unbearable. Worse, the search for a reliable technician who won’t keep you waiting or cut corners adds to the frustration. That’s where Smock HVAC comes in. We understand your pain points and deliver fast, skilled service you can trust, getting your home back to comfort—no stress, no hassle.
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NATE-Certified Technicians
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1,200 5-Star Reviews
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Same Day Service



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Premium Materials for Reliable HVAC Systems
We believe your home deserves the very best, which is why we only use top-of-the-line materials from trusted names like Trane, Carrier, American Standard, and Mitsubishi. These premium components are handpicked for their durability and outstanding performance, ensuring your HVAC system runs efficiently and lasts for years. By combining high-quality materials with expert craftsmanship, we create systems that deliver comfort and reliability you can count on. Experience the difference true quality makes.

Our Comprehensive Services

Hear From Our Happy Customers
Our Simple 4-Step Process
Step 1
Let’s Chat!
Fill out our online form or give us a call to get started.
Step 2
Schedule Estimate
We’ll find a convenient time that works with your schedule.
Step 3
On-Site Inspection
Our thorough inspections find the root of your issue.
Step 4
Price on the Spot
You’ll get a detailed written estimate right away. Then we get to work on your project!
Trust Our Certified Team for Your HVAC Needs
Our certified HVAC professionals bring extensive training and expertise to every project, ensuring top-quality results you can count on. We understand the importance of regular HVAC maintenance to keep your system running efficiently and reliably year-round. Whether it’s routine tune-ups or complex repairs, our team is dedicated to providing exceptional care and precision. With a commitment to excellence, we prioritize maintenance to extend the life of your system. Dependable service starts with us!

Proudly Serving the Gaithersburg Community
At Smock HVAC, we’re more than just an HVAC company—we’re your neighbors. As a family-owned business rooted in Gaithersburg, we understand the unique needs of local homeowners, from unpredictable weather to maintaining year-round comfort. This is where we live and work, and we’re dedicated to providing tailored solutions for our community. With decades of experience, honest service, and a commitment to reliability, we’re here to keep Gaithersburg homes comfortable every season.


Serving Frederick and the Surrounding Areas
Explore the variety of areas our company serves! Whether it’s rural homes or suburban neighborhoods, we deliver high-quality HVAC solutions designed to fit the specific needs of your home.
- Frederick
- New Market
- Mt. Airy
- Germantown
- Gaithersburg
- Monrovia
- Walkersville
- Damascus
- Middletown
- Ijamsville