
Heating & Cooling Services in Frederick & Surrounding areas
Your Reliable Furnace Replacement
When properly maintained, a high-quality gas furnace can be a long-lasting solution to all of your home’s heating needs. Eventually, though, there is going to come a time when your system no longer performs like it once did, no matter how well you maintain it. When that time comes, the best thing you can do is reach out to your local Frederick heating contractors at Smock HVAC, and let us help you determine if a gas furnace replacement is the right choice for your home. As the area’s premier HVAC company, we have the expertise and the experience necessary to help you go over the health of your system, determine if replacement is the best option, and help you find the right gas furnace replacement option suited to the needs of your home.

Over 1,000+ Google Reviews️
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24/7 Live Answering Service
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Free Estimates for Your Home
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Financing Available
The Benefits Of Replacing Your Furnace
Stay cozy and make the smart choice this winter! Replacing your furnace comes with plenty of benefits beyond just keeping your home warm. Here’s why it’s a smart upgrade:
- Lower energy bills: Newer models operate more efficiently, saving you money on energy costs.
- Reduced environmental impact: Improved efficiency means using less energy, which is better for the planet.
- Consistent heating: Enjoy reliable and even heating throughout your home all winter long.
- Advanced features: Modern furnaces can improve air quality and enhance overall comfort.
- Peace of mind: Upgrade now for long-term savings and a worry-free heating system.
Reach Out For an Appointment Today!
The technicians, Mitchell and Anthony, who installed our new system were on time and very personable. They protected our carpet and were careful about bringing in the new equipment. After a full day's work removing our old HVAC and installing the new system, they taught us about the functioning of the new unit.
We highly recommend this reliable and trustworthy company. Thanks for your service!
We hired Smock to follow on the terrible errors of a very large, well-known commercial H/AC company (with the initials C, M) that left us in the midst of the worst July heat with a flooded upstairs from a nonfunctioning attic AC unit—which, for many years, has been under a so-called Golden maintenance agreement that supposedly guarantees the best in maintenance and first in response, especially in urgent, highly worrisome, and even dangerous circumstances, such as ours proved to be.
However, we had the great good fortune to decide on Smock to install a complete Trane system in the attic, outside, and in the basement. Mario, James, and their two fellow specialists brought us aid and relief. On an exceptionally hot summer day, they labored nonstop, but always with spectacular care. Their time in our home was spent diligently and meant, obviously, to give us a thorough, first-rate equipment installation. They delivered the highest caliber of skill and knowledge. They went about their work with obvious education, surety, experience, and deliberation. I was especially impressed with their devotion to detail and, too, their very helpful communication about the three, broken, defective units as well as the superior Trane replacements.
When thinking about 4 installers of large equipment such as furnaces and air conditioners you can be apprehensive about your home and its fittings and furnishings. But these specialists were careful with all—from the on-time arrival, the thoroughly protected pad-covered rooms and stairway floors to the comprehensive clean up and then a welcome check list before the last of the four fully equipped, immaculate Smock trucks pulled out of the drive. But before leave-taking, w/o our even thinking of it, these technicians voluntarily put up both replacement filters plus the easy, plug-in smoke detectors Montgomery County now requires. All of the above and yet most amazing, Mario took it upon himself, after completing his furnace install, to take down the four, out-of/reach (for us) overhead basement lights that had been malfunctioning for months with new, better light fixtures and brighter bulbs! My late day discovery of this dangerous problem (dark basement) now fixed made me happy beyond words.
We signed up with our new H/AC company for a pair of very reasonably-priced annual maintenance programs, to go along side the convenient 18-month payment plan for the installed equipment. Smock made for an experience that was smooth and comforting from start (the proposal) with Scott Smock to the physical install and the office paperwork completion. In summary, when the installers went to their own homes after a demanding work day, we remarked then and since that Smock fully delivers on putting first their customers’ expectations and requirements. We think you will find that this company makes for, truly guarantees you’ll have NO WORRIES.
1 year check-up...
Unit still works great! Brian the service technician was very friendly, extremely knowledgeable, concerned and very careful with our property. They arrived on time and were as professional as anyone could. 100% recommend Smock Heating and Air.
No one wants to be the one finding the AC out on the hottest day of the year… Don’t be that guy!
Maintenance Savings Plan
Sign Up for Our Comfort Plan!
HVAC maintenance should be at the forefront of every homeowner’s mind. Signing up for our Comfort Maintenance Savings Plan is a surefire way to safeguard your comfort, keep your energy bills under control and reduce your carbon footprint.

A Personalized Approach
At Smock HVAC, we understand that every home is different. That’s why we offer personalized solutions, assessing your specific heating needs to recommend the best furnace for your home’s size, energy requirements, and budget. Our team is committed to timely and reliable service because we know how important a functioning heating system is, especially during the colder months. You can count on us to minimize disruptions to your daily routine while delivering exceptional results. Customer satisfaction is at the heart of everything we do. We aim to exceed your expectations by providing outstanding service and ongoing support to ensure your heating needs are met. Trust Smock HVAC for your furnace replacement and enjoy peace of mind and warmth all winter long.
Serving Frederick County Residents Since 2005
$89
for an AC Inspection
*Cost is per Unit. Cannot be combined with any other offer or coupon. Additional restrictions may apply. Call Smock Heating & Air for complete details.
$120/month
for New HVAC Systems
*With approved credit, on qualifying new systems. Additional restrictions may apply. Contact Smock Heating & Air Conditioning for complete details.
$2,000
in Rebates on New HVAC System
*On qualifying equipment. Other restrictions may apply. Utility Rebates up to $1500. In-house rebates up to $500. Call us for complete details.
$25 Off
Your Next Repair
*Restrictions may apply. Call Smock Heating & Air Conditioning, Inc. for complete details.
Current Specials
Year Round Deals For Your Whole Home
A broken HVAC system shouldn’t break your budget! We offer a rotating selection of monthly deals designed to save you money, time, and stress. Choose the team that puts your needs first, every time!
FAQs
Common Client Questions
What models do you install?
We’re a proud dealer of Trane furnace products.
How long will my furnace last?
With proper maintenance, a furnace can last over twenty years!
How long will my installation take?
Most furnace installations can be completed within the week.
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