New Castle: (302) 834-5100

Sussex: (302) 934-8900

Kent: (302) 697-4200

Maryland: (410) 742-2121





Plumbing Services in Delaware and Maryland



Home Performance

Heating and Air Conditioning Provider for Delaware and Maryland

If you're looking for a reliable Delaware and Maryland HVAC company to provide you with quality heating and air conditioning sales, installations, maintenance, or repairs, look no further. At First Class Heating and Air Conditioning in Millsboro, DE, we are dedicated to working hard for each and every one of our clients.

We have been serving your family and friends for over 40 years and pride ourselves on having the very best employees a company can have, starting from our office straight to your job site. When you sign us on to complete your HVAC project, you can count on us to deliver exceptional craftsmanship and fast, friendly service.

First Class HVAC is a locally owned and fully licensed company with a strong foundation built on honesty and integrity. Our biggest asset is the fact that we expect more out of our company then what our customers expect. We customize ourselves to fit your needs and wants and only use the very best materials and equipment. Read more about the history of First Class Heating and Air Conditioning.

Air Conditioning, Heating Installation and Heating Repair

Are you in the market for a brand new air conditioner, or is your current air conditioning system showing signs of aging? Allow our professional air conditioning repair technicians to come in and take a look at your air conditioning unit and diagnose your issues. We'll do our best to get you back up and running the same day. First Class HVAC repairs, installs and maintains all makes and models of air conditioners as well as many furnace brands.

Heating & Air Conditioning Service in Delaware and Maryland

Whether you need routine heating maintenance performed or heating repair services in Delaware or Maryland, we can quickly and efficiently diagnose any problems and make the necessary repairs to your unit. A properly functioning heating system is vital to keeping your home warm in the winter season. We can preform many services on any type of commercial or residential heating units. Duct cleaning and deoderizing is important to your health and air quality. We use a thorough cleaning process to assure that you are getting the best air quality possible out of your heating ducts. We provide our heating services timely and efficently so that our customers can relax and not have to worry about their home being under construction for too long.  

For those hot summers, you need your home to have a cool atmosphere that you can relax in. When that dated air conditioner of your decides to take he summer off, we provide A/C replacement and A/C maintenence to keep it running all summer long and for years to come.

Heating, Plumbing and Drain Repair Services

Clogged sewage lines and drain systems can create a huge mess in your home. We offer a wide range of plumbing services to ensure your home plumbing and drainage systems are flowing smoothly. Some of our plumbing services include drain cleaning and maintenance. From something as simple as a clogged toilet to needing an entire sewer line replacement, our expert plumbing technicians can solve any the problem at a reasonable price.

Is your heater not working during the brutal weather conditions that winter can bring? Let us take care of all your heater servicing needs! We offer the best in customer service and performance in all the work that we offer to our customers. You can count on us to make a difference when it comes to heating repair services in the Delaware and Maryland areas. We will make sure that your heater is working perfectly at a fast and precise speed that has become standard for our technicians here at First Class HVAC. We have an excellent partnership with Mitsubishi Electric, so we only use the best in equipment. If you have any questions on the repair services that we offer for heating in the Maryland and Delaware areas please feel free to contact us!

What our Customers say...

Our Client Testimonials

"Thanks for a job well done. I enjoyed working with Brian and Jim and I learned a lot about HVAC as well! Let me know if you need a reference." - R. Bolin

"It's a pleasure to do business with First Class HVAC. The quality, the servicemen, and the management were very experienced, very neat, polite and skilled. I highly recommend the company and can be called on to vouch for the workmanship." - J. Keeting

Read more Customer Testimonials

Check out our blog!

To keep up with the latest updates on First Class HVAC and to learn more about the services and products offered by your #1 heating and air service provider, read our blog here.

Angie's List Super Service Award

First Class Heating and Air Conditioning has earned the service industry-coveted Angie’s List Super Service Award for the 2012, 2013 and 2014 calendar years! Angie’s List Super Service Award winners have met strict eligibility requirements including earning a minimum number of reports, an exemplary rating from their customers and abiding by Angie’s List operational guidelines.

First Class Heating and Air Conditioning is all about Service

We offer a wide range of services including Air Conditioning Installation, Sales, and Service, Heating Installation, Sales, and Repair, Indoor Air Quality Services, Duct Cleaning Services, Fast & Friendly Plumbing ServiceGeothermal Heating & Cooling, and Total Home Performance tests. We also offer Maintenance Contracts for your air conditioning and heating systems.

To view the full list of services we offer and to read more about each service, Click Here.

To see the list of brands our company carries and supports, Click Here.

Servicing Kent, Sussex, and New Castle Counties in Delaware

Selbyville, DE Dover, DE Frankford, DE
Rehoboth Beach, DE Seaford, DE Fenwick Island, DE
Ocean View, DE Laurel, DE Dagsboro, DE
Nassau, DE Lewes, DE Bethany Beach, DE
Milton, DE Harbeson, DE Dewey Beach, DE
Millville, DE Milford, DE Wilmington, DE
Millsboro, DE Georgetown, DE Smyrna, DE
Middletown, DE Bear, DE Newark, DE
Pikecreek, DE Bethel, DE Blades, DE
Bridgeville, DE Delmar, DE Ellendale, DE
Greenwood, DE Henlopen Acres, DE Slaughter Beach, DE
South Bethany, DE Gumboro, DE Lincoln, DE
Long Neck, DE Oak Orchard, DE Roxana, DE
Harrington, DE Bowers, DE Camden, DE
Cheswold, DE Clayton, DE Farmington, DE
Felton, DE Frederica, DE Hartly, DE
Houston, DE Kenton, DE Leipsic, DE
Little Creek, DE Magnolia, DE Viola, DE
Woodside, DE Wyoming, DE Andrewville, DE
Berrytown, DE Little Heaven, DE Marydel, DE
Delaware City, DE New Castle, DE Bellefonte, DE
Elsmere, DE Newport, DE Odessa, DE
Townsend, DE Arden, DE Ardencroft, DE
Ardentown, DE    


Servicing Worcester, Somerset, Dorchester and Wicomico Counties in Maryland

Berlin, MD Ocean City, MD Salisbury, MD
Crisfield, MD Pocomoke, MD Princess Anne, MD
Pittsville, MD Nanticoke, MD Fruitland, MD
Hebron, MD Newark, MD Ocean Pines, MD
Snow Hill, MD Gridletree, MD Bishopville, MD
Showell, MD Stockton, MD West Ocean City, MD
Whaleyville, MD Chance, MD Dames Quarter, MD
Deal Island, MD Eden, MD Fairmount, MD
Frenchtown Rumbly, MD Mount Vernon, MD Smith Island, MD
West Pocomoke, MD Delmar, MD Mardela Springs, MD 
Nanticoke Acres, MD Parsonsburg, MD Powellville, MD
Quantico, MD Tyaskin, MD Waterview, MD