RELIABLE HVAC SERVICES | Maryland & Delaware

$59 Heat Tune-Up Now + Heat Safety Inspection
& $39 AC Tune-Up This Spring

(Gas or Electric Heaters)

get a free estimateview our services

RELIABLE HVAC SERVICES | Maryland & Delaware

First Class Brita Pro:
Is My Water Safe?

get a free estimateview our services

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    If you’re currently seeking one of the most reliable HVAC companies for residential HVAC service, you can’t do any better than First Class HVAC. Located in Millsboro, Delaware, our experienced team of professionals is devoted to providing each and every one of our clients with the highest quality HVAC replacement, with a personal touch.

    Having served our community for over four decades, our HVAC company takes pride in having the most skilled professionals and HVAC contractors in the region. When you schedule us to visit your home, you can count on receiving exceptional craftsmanship and fast service from friendly professionals who care.

    WHY CHOOSE first class

    Upfront flat rate pricing
    Upfront flat rate pricing
    Fast Response Time at First Class Heating and AC
    Fast response time
    Same Day Service at First Class Heating and AC
    Same day service
    24/7 no overtime charge
    24/7 no overtime charge
    40 years of experience at First Class Heating and AC
    40 years of experience
    Locally owned and operated at First Class Heating and AC
    Locally owned and operated
    100% satisfaction Gurantee at First Class Heating and AC
    100% satisfaction Guarantee
    Free Estimates at First Class Heating and AC
    Free estimates
    Second Opinions at First Class Heating and AC
    Second opinions

    Contact First Class HVAC

    Today Our manufacturers provide us with a vast array of products, allowing us to be ready for nearly any situation. Let First Class HVAC assist you with your home’s heating or AC problems, whether you’re looking for an HVAC maintenance contract or your toilet is leaking.

    Our greatest asset is the high expectations we set for our company and our team. Making use of the best equipment and materials available, we make sure that our work meets the highest levels of craftsmanship and fits your individual needs.

    A premier HVAC repair company, First Class HVAC proudly serves the communities of Kent County, Worcester County, Wicomico County, and Sussex County. For a free estimate from the area’s leading HVAC company, contact First Class HVAC today by giving us a call at 302-804-1309 for Delaware or 410-713-4099 for Maryland.


    A huge shout out to 1st Class HVAC we were having problems with the heat in our home , I have had to stay awake for the last six days…

    Ric Fowler

    In the beginning of September(when the temps were in the 90’s)our central A/C died. We called and they sent a technician named Mike who found the problem and got it…

    Jean Burkhardt

    The problem first came up on Memorial Day. Gary arrived quickly even though it was a holiday. He discovered the problem and had to order a part which they did…

    Dolores Fidishun

    Every member of the team was professional, courteous, knowledgeable, respectful, industrious, and delivered such high quality product that I was impressed beyond belief. Duane took the time and effort and…

    Steve Feher

    Our 12 year old Central AC unit burnt out and needed replacing. We contacted our current service company for an estimate to replace. The sales rep showed up with three…

    Bruce Temple

    Working with Sean Walsh to design and install our replacement HVAC system was a delight. Mr. Walsh was extremely knowledgeable and did a great job explaining our options based on…

    N Marvin

    Arrived at our second home only to find that our heat would not come on for what was the coldest night of the season so far. Called First Class, as…


    First Class is an outstanding company. My Mitsubishi system was installed by them and now a complete of two bath breakdown and replacement of bath items and pipes was completed…


    Proud Factory Authorized Dealer Of

    Factory Authorized Dealer at First Class Heating and AC