Our HVAC Services

View all of our heating and cooling services! We work in Maryland, DC, and Northern Virginia. Contact us for both residential HVAC Services and Commercial HVAC Services for your business. 

Residential and Commercial HVAC Services

Shamrock HVAC Services is proud to offer HVAC services to both residential homes and businesses. We help with everything from installations, repairs, preventive maintenance contracts, construction, indoor air quality, and more. Trust us for small businesses, large companies, and your family’s home comfort. 

$90 Heating and Cooling Check

Make sure you are prepared for anything mother nature throws at you! Shamrock HVAC Services offers Heating AND Cooling checks for only $90! With your $90 Heating and Cooling System check, we will send one of our 5-Star Technician’s to your home to inspect your home’s heating AND cooling system to make sure you are prepared whatever mother nature throws at you!

Heating Service & Repair

Shamrock HVAC Services is a reputable and trusted heating service and repair company. With over fifty years of experience, our heating repair contractors are there for you, whether it’s for your home or business.

We handle:

  • Central heating
  • Boilers
  • Furnaces
  • Heat Pumps
  • Forced Air Systems
  • Ducts
  • Filters
  • Ventilation
  • Humidifiers

AC Services

Specializing in residential and commercial branded AC installation, Shamrock HVAC Services is dedicated to keeping clients in Maryland and surrounding areas nice and cool. No job is too big or small, and we aim to deliver complete customer satisfaction on every project we undertake. We also offer a wide selection of top air conditioner brands and models at affordable prices to meet your specific needs.

HVAC Unit Services

Shamrock HVAC Services’ core business is HVAC repair service. Our services deliver these tremendous benefits for your building or house:

  • Faster response times
  • Repair work done right the first time
  • Better energy conservation
  • Repairs are monitored by our computerized record-keeping
  • Professional, polite, and helpful HVAC service technicians

We are truly dedicated to providing you with HVAC service and repairs you can depend on.

HVAC Preventative Maintenance Contracts

What is the best way to avoid costly HVAC repairs? Not having to make them in the first place.


Shamrock HVAC Services’ comprehensive maintenance program is customized to meet the needs of your facility and budget. Each building and business is unique, so we perform a complete on-site survey of your entire mechanical system and provide you with a written assessment of the condition of your equipment along with photographs.


The foundation of Shamrock’s business has been the traditional general construction approach. However, when combined with our pre-construction services, you get the best of both worlds. The value of working with Shamrock is our ability to carry a given project from its concept through to its completion. Our capabilities are far reaching. From initial site preparation and general construction services, to fine tuned finishing details, we are able to provide a full spectrum of specialty services to fit your needs.

Indoor Air Quality Services

Most homeowners don’t realize that their indoor air quality is actually poor and causing harmful side effects to their health. Breathe better with better indoor air quality from Dayton experts from Shamrock HVAC Services. We can help you diagnose the primary cause of the poor air quality and help recommend services to fix it.