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Trusted HVAC & Plumbing Services in Delaware & Maryland
First Class HVAC has been a trusted provider of heating, ventilation, air conditioning, and plumbing services in Delaware and Maryland for over four decades. Our team of highly trained technicians prioritizes exceptional craftsmanship and customer satisfaction, offering comprehensive solutions for residential and commercial properties. We specialize in HVAC system installations, repairs, and maintenance, including furnaces, boilers, heat pumps, and ductless systems.

Our commitment to using advanced technology and quality materials ensures reliable, energy-efficient results tailored to each client's needs. With 24/7 emergency services and a focus on transparency, we aim to deliver peace of mind and long-term comfort for every customer.
Services
HVAC Repair Furnace Installation Boiler Services Water Heater Repair Ductless Systems Plumbing Services Heat Pump Repair Hydronic Heating Gas Heater Repair Emergency Services
Highlights and features
  • We offer 40+ years of experience in HVAC and plumbing services.
  • Our team includes highly trained, certified technicians.
  • We provide 24/7 emergency and same-day service.
  • We guarantee 100% customer satisfaction with all work.
  • We use advanced technology and quality materials for lasting results.
Services
HVAC Repair
Our HVAC repair services address heating and cooling system malfunctions promptly, ensuring year-round comfort. We diagnose and fix issues with furnaces, air conditioners, heat pumps, and ductless systems. With 40+ years of experience, our technicians use advanced tools to restore efficiency and prevent costly breakdowns, serving residential and commercial properties across Delaware and Maryland.
Furnace Installation
We specialize in furnace installation for gas, oil, and electric systems, ensuring optimal performance and energy efficiency. Our experts help clients select the right model based on home size and heating needs. Backed by decades of experience, we guarantee professional installation that meets safety standards and extends system lifespan, serving homes in Millsboro and surrounding areas.
Boiler Services
Our boiler services include installation, repair, and maintenance for residential and commercial properties. We handle all boiler types, ensuring safe and efficient operation. With expertise in modern high-efficiency models, we help reduce energy costs while maintaining reliable heating. Our technicians provide annual inspections to prevent breakdowns and extend equipment longevity.
Ductless Systems
We install and repair ductless heating and cooling systems, ideal for homes without existing ductwork. These energy-efficient systems allow zoned temperature control, reducing utility bills. Our team ensures proper placement of indoor units and seamless integration with existing HVAC setups, serving clients across Delaware and Maryland with customized comfort solutions.
Plumbing Services
Our plumbing services cover repairs, installations, and maintenance for residential and commercial properties. We address leaks, water heater issues, drain clogs, and pipe replacements promptly. Using high-quality materials, we ensure durable solutions that prevent future problems. Our 24/7 emergency service guarantees rapid response for urgent plumbing needs.
Questions
What HVAC services do you offer?
We provide heating, cooling, plumbing, and water treatment services, including furnace and boiler installation, ductless systems, and emergency repairs.
Do you serve commercial properties?
Yes, we offer HVAC and plumbing solutions for both residential and commercial clients in Delaware and Maryland.
Are you available for emergencies?
Yes, we offer 24/7 emergency services for urgent HVAC and plumbing issues.
What areas do you service?
We serve Delaware, Maryland, and surrounding counties including Worcester, Sussex, and Wicomico.
Do you offer maintenance plans?
Yes, we recommend annual maintenance to ensure system efficiency and longevity, with customizable service agreements available.
How can I schedule a service?
Call us at 1-302-219-3223 or book online through our website for prompt service scheduling.
Reviews (6)
G. B.
Jan 28, 2022 Report
I could not be more pleased with this company, Andy Brice, Eric Kenny, and Rodger, you gentlemen deserve a raise. Even the nice lady in billing was awesome to deal with. Sorry, I did not catch your name.
Priced reasonably, efficient, professional, diligent, knowledgeable, on top of their game, reliable and I could go on with positives
It was such an awesome experience! Unfortunately my hot water heater went New Years Day. I got First Classs number from Home Depot. I reached out to Andy and he sent Eric over to give me a free estimate. The next day Eric and Rodger came and did a superb
Clarice Maggio
Jan 12, 2022 Report
There is no doubt that Chris W is an expert technician who checks all the boxes. He put booties on entering the house and crawled into a crowded awkward spot to service our heater. He was on time, efficient and explained the status of our heater in a language we could understand. Truly an asset to the company...
Charles Schertle
Dec 20, 2021 Report
I have been using first class for many years
For hvac and plumbing services. I own a local
Service Business. I can tell you that they are
Prompt and efficient, courteous, nolageable,
And reasonably priced. I recommend them
To all my customers. Charles schertle
Handy services, inc.
Sheila Decourcey
Dec 17, 2021 Report
Techician showed up 3 hrs after a 4 hr window! Wanted to charge me $1,300 for a fan motor. George Hoffman heating and AC was contacted for second opinion. George replaced the fan motor for $236! First class is unethical and dishonest. Do not use them!
John DiPietro
Dec 14, 2021 Report
Mike T just completed our HVAC seasonal inspection. Found two things that could have become big issues if left unattended. He is very polite and thorough and we appreciate his attention to detail.
Elsje Bean
Dec 01, 2021 Report
I concur with Jeffrey Rineers review from 3 days ago, My experience is EXACTLY the same, I called today and was told that I couldnt get an appt for hvac maintenance until Dec. 20. That is untenable as I have had no problem in the past with First Class HVAC. During phone call; I find out that Horizon has taken over.no notice from First Class about this change. This is NOT first class service, I will be switching my HVAC company ASAP