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Our HVAC Services

Shamrock HVAC Services in Maryland maintains and services all major brands of gas furnaces, air conditioners, heat pumps, humidifiers, air cleaners, and thermostats.

Heating Services - Heating & Cooling Checks - AC Installations - Preventive Maintenance - Construction

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About Shamrock HVAC Services

Shamrock HVAC Services in Dayton, MD has been providing air conditioning and heating services in homes and businesses like yours since 1965. Our mission is simple:

Honesty - Reliability - Expertise - Experience - Client Satisfaction

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Contact Us

Ready to get started? We’re ready to help you with your HVAC Services in Maryland! Let us know what service you are interested in by calling us or filling out our online form. Find us throughout the following counties:

Anne Arundel - Carroll - Frederick - Howard - Montgomery - Prince George’s - DC - Northern VA

HVAC Maintenance and AC Repair Services Dayton, Maryland

Shamrock HVAC Services has been providing air conditioning and heating services in homes and businesses throughout Maryland since 1965. Clients return to us year after year for their HVAC repair in Dayton, Maryland because we are reliable, honest, and continually expanding our team to provide the best service. With affordable and competitive pricing and emergency teams, we work to make your experience great. Whether it’s a new heating installation or AC Repair services in Maryland, we’ve got you covered. 

Yes, We Provide HVAC Repair Service Throughout Maryland Counties:

Best HVAC and AC Repair Company in Dayton, Maryland

hvacAt Shamrock HVAC Services, we’re committed to providing customers throughout Maryland and the surrounding areas with quality services. If you need to call upon a competent HVAC Service in Dayton, Maryland our professionals are ready to assist.


We have the training and experience needed to work on a broad range of HVAC makes and models, and we pride ourselves on being precise. It doesn’t matter what your equipment is or what issue you are facing: we are eligible to complete the job. This includes heating repair and new AC installations in Maryland.


Our team can do a full diagnostic of your heating or cooling equipment (including air conditioner repair services) in order to determine the source of any problems you are having. We’ll communicate with you any issues we find and discuss proven solutions that should be taken to fix your HVAC unit. We keep our rates competitive and we believe in being up-front about our costs so you aren’t surprised later on.


Our goal will be to ensure that your system is using energy efficiently and we’ll put in durable replacement parts whenever necessary. Regardless of the size of a project, we aim to finish it promptly to provide you better comfort. That’s the promise from our local HVAC Company in Dayton, Maryland: efficient and timely heating and AC services in Dayton, MD. 

What to Expect from Our HVAC Installation Company in Dayton, MD

Competitive, Affordable Pricing
5-Star Service
Prompt Scheduling & Arrival
Clear Communication
Better Home Comfort

Our HVAC & Air Conditioner Repair Services

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Heating Service & Repair

Our core business is heating service and repair. If you need Heating Repair Services in Dayton, Maryland you can call us to have professionals arrive promptly on the scene to handle any and all issues. Fill out our online form to get started and let us know what you need.

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$90 Heating and Cooling Checks

Shamrock HVAC Services offers Heating AND Cooling checks for only $90! This means whether you are fighting Maryland heat or Maryland snow, we are the HVAC Service Company in Maryland you can call to ensure you’re prepared. Affordable HVAC Repairs in Maryland are one call away, for both heating and AC services.

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AC Installations

Our AC Installation Services in Maryland include both residential and commercial properties. Whether it’s a large project or a quick job, we are available to help out with any AC installations in Maryland.

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General construction at an affordable cost is made possible with Shamrock HVAC Services in Dayton, MD. Work with just one company on your next construction project.

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HVAC Preventative Maintenance Contracts

Don’t wait until it’s too late! Set up an HVAC Preventive Maintenance Plan in Maryland with Shamrock! We make it easy to avoid costly repairs with preventive contracts.

Why You Should Stay On Top of HVAC Repair Service in Dayton, Maryland

We’re an HVAC Service Company Steeped in History

Shamrock HVAC Service Company has remained in the same family since its inception. We offer Dayton HVAC service and preventive maintenance in Maryland second to none.


Our HVAC company in Dayton, MD is our passion and in turn, we provide the best service we can to our clients. With us, we’re not just another HVAC Service Company, we are an HVAC Company that listens to your needs and works to meet them, every time. This means we take the time to address your new heating installation in Dayton, Maryland or your air conditioning repair in Maryland. 


A qualified HVAC Contractor from Shamrock HVAC Services can help you keep your home at a comfortable temperature and running smoothly. Customers from all around Maryland rely on us because we’re courteous and professional. We maintain convenient scheduling and setting up an appointment is easy.


When you want your HVAC equipment to run reliably, give us a call. We work on both commercial HVAC units and residential HVAC units in Maryland. With our crews on site, you’ll spend less time working on your home and more time enjoying it. Families will be more relaxed, employees more productive, and everyone much happier when your HVAC unit is running as intended.


Prep for the upcoming Maryland seasons by giving Shamrock HVAC Service Company in Dayton, MD a call today. Don’t let unexpected heat or cold fronts ruin your plans and get in the way of enjoying your home. Better living is just one call away.

Get in touch with our HVAC Service Company in Maryland Today