August 10, 2026
Why Is My AC Running but My House Still Feels Humid?
Your thermostat says the house is cool, but the air still feels sticky. Learn what can cause high indoor humidity and when your HVAC system may need attention.
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4.7 Stars · 391+ Reviews
North Star Heating and AC
Eastern Shore's Trusted Heating & Cooling Experts
Your local HVAC contractor with 26+ years serving Sussex County, DE & Eastern Shore, MD. AC repair, furnace installation, heat pumps, plumbing, electrical & 24/7 emergency service.
Limited Time Offer
20% OFF New Customer Special
New customers get 20% off their first service when they sign up for a service agreement. Keep your system running year-round and save!
Licensed & Insured
24/7 Emergency Service
Bryant Authorized Dealer
4.7★ Rated (391+ Reviews)
Local, Family-Owned HVAC Company Since 1998
Your Trusted HVAC Experts in Delaware & Maryland
At North Star Heating & Air Conditioning, Inc., we believe in giving you the highest quality heating and cooling systems with top-notch customer service. Whether you're looking for a new heat pump installation, air conditioner repair for that struggling AC unit, a water heater replacement, or improving your home's indoor air quality, we've got you covered with cost-effective, energy-efficient HVAC and plumbing services.
Based in Dagsboro, DE, our highly trained, NATE-certified HVAC technicians proudly serve homeowners throughout Sussex County, Delaware — including Bethany Beach, Rehoboth Beach, Lewes, Millsboro, and Georgetown — as well as the Eastern Shore of Maryland, including Ocean City, Salisbury, Berlin, and Ocean Pines.
Contact our heating and cooling company today to learn more about our full range of HVAC repair, installation, and maintenance services — and schedule your next service call!
Our HVAC, Plumbing & Electrical Services
Comprehensive heating, cooling, plumbing, and electrical solutions for Sussex County, DE & the Eastern Shore of Maryland.
Cooling & Air Quality
Plumbing & Electrical
What Sussex County & Eastern Shore Customers Say
Join 391+ satisfied homeowners who trust North Star for AC repair, heating service, and HVAC installation across Delaware and Maryland.
"Austin and Melvin did a great job installing our mini split! Very professional, cleaned up after themselves. Great at explaining what they were doing as they did it! Austin did a great job on our annual HVAC service as well!"
K
Karen C.
Google Review — Mar 2026
"Outstanding service!!! We've been with North Star since our new install in 2020 and have continued our annual service contract with them. 5pm on a hot Saturday and no cold air. Made one phone call and Kole was to our house AND fixed the system in about an hour!!!"
J
Jeff S.
Google Review — Jul 2025
"We have heat! Thank you for your quick response to our need for heat this time of year. The install went in without a hitch and the young men who did the job were not only friendly but very competent. Thank you North Star for your quick and efficient turn around."
J
John & Donna P.
Google Review — Dec 2025
Brands We Install, Replace & Service
We install, replace, and service all major heating and cooling brands — including:
Our Service Areas
Proudly serving homeowners across Sussex County, Delaware and the Eastern Shore of Maryland.
DelawareSussex County
Our Location
30968 Vines Creek Rd, Dagsboro, DE 19939
Availability
24/7 Emergency Service
Call Us
(302) 934-1698Latest from the North Star Blog
Practical HVAC tips, maintenance advice, and energy-saving guides for coastal Delaware and Eastern Shore homeowners.
July 31, 2026
Why We Recommend Bryant HVAC Systems to Delmarva Homeowners
Learn why North Star trusts Bryant heating and cooling equipment—and why proper system selection and professional installation are essential to dependable home comfort.
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July 24, 2026
The Right Ceiling Fan Direction for Summer: Stay Cooler & Help Your AC Work Less
Did you know your ceiling fan direction can help your home feel cooler? Learn why counterclockwise is the correct summer setting and how it can reduce the workload on your AC.
Read ArticleHave Questions About HVAC Service?
Find answers about our services, service areas, financing options, and more.