Rehoboth, DE HVAC Company

Premier Heating & AC Repair, Installation, & Maintenance Services

At One Hour Heating & Air Conditioning® of Delmarva, you and your family’s comfort is our biggest challenge and highest goal. We achieve this by offering swift, dependable, and courteous HVAC services throughout the Rehoboth area. Our team members receive extensive, industry-leading training and are fully equipped with the expertise and tools needed to get the job done right the first time.

Whatever you might need, from heating or air conditioning repairs to new installations or regular maintenance, we are here to provide you with the best we have to offer. Our services include designing and installing new systems, as well as performing repairs to ensure your current system operates efficiently for many years to come.

Trustworthy HVAC Technicians in Rehoboth

When it comes to repairing and installing heaters and air conditioners, you need a team with the knowledge and skills to execute the job perfectly. At One Hour Heating & Air Conditioning® of Delmarva, we are committed to ongoing education, believing that there is always room for improvement.

We keep up with the latest industry advancements to provide our customers with the best possible service. When one of our HVAC technicians visits your home, they will be as friendly as they are knowledgeable about all your heating and cooling needs.

What Makes Us Stand Out from Other Rehoboth HVAC Companies:

Locally owned and operated HVAC company
100% satisfaction guarantee
Skilled and dependable HVAC technicians
Prompt responses with no waiting for callbacks
No extra fees for after-hours service – even on weekends and holidays
Background checked and drug-screened technicians

For your heating and cooling systems to work at their best, regular maintenance is essential. Our HVAC maintenance programs ensure that an expert will inspect your systems regularly to make sure they are operating safely and efficiently. Routine maintenance also helps catch minor problems before they become major issues.

Guaranteed HVAC Repair & Installation

We take pride in being a locally owned and operated business, while also providing the high-quality service associated with the One Hour Heating & Air Conditioning® of Delmarva name. To show our dedication to excellence, we back all our work with a 100% satisfaction guarantee.

This means you’ll be satisfied with our service—from our professional demeanor to the quality of our work—or we’ll make it right at no extra cost. Additionally, we guarantee on-time service so you won’t have to wait around all day for us to arrive.

Your comfort is important to us, and we are dedicated to providing the best heating and air conditioning services in Rehoboth.

We Have a Reputation

For Being Punctual, Friendly and Knowledgable

4.82

(152327 reviews)

William Laughman

in the last week

“We have 3 heating/cooling zones in our 2300 sf home. We were having some temperature discrepancies and frankly, we weren't sure what areas were covered by each thermostat. We called One Hour Heating and cooling. Jordan came out and evaluated our AC unit and our furnace. He found a couple of issues and explained each zone covered by each thermostat. He was fantastic. Jordan educated us on how our system works. I use the word educated because he explained everything very well was not pushy and was very polite, personable and professional. We had him do the work he recommended at a very reasonable cost. We will definitely be using one hour heating and cooling for our future needs.”

Richard Drake

in the last week

“Mario did an amazing job getting us ready for summer! He was fast, efficient and friendly. He also let us know the condition of our equipment and what we might need to do in the future. We have used Dial One for many years and have been happy with all our services .”

Amy Young

in the last week

“We called Mitchell's for an estimate and ended up with 4 wall air conditioning/heating units and a tankless water heater. They were out to install everything the following Monday. Everyone from the scheduler to the install crew were professional . Our house was kept clean and the outside was kept clean. I would highly recommend Mitchell's One Hour.”

Leanne McGuire

in the last week

“Matt Marvin was a very polite and kind gentleman. He got right to work and was able to find the issue right away. He came in with pictures proving what was wrong and then fixed it with the cost being known up front. He did a great job and was completed in no time. Thank you!!”

Melvin Hill

in the last week

“I had an exceptional experience with Deshaun from One Hour Heating & Air Conditioning. From the moment he arrived, he was professional, courteous, and clearly knowledgeable about his work. He took the time to explain the issues in simple terms and offered honest recommendations. His attention to detail and commitment to quality service truly stood out. It’s rare to come across someone so dedicated and respectful. Deshaun is a true asset to the company, and I wouldn’t hesitate to call again or recommend their services to others. Five stars all the way!”

Ty'Lek Campbell

in the last week

“Ryan came out on a Sunday afternoon to fix my problem I was having with my unit. He was very thorough in his assessment and within no time at all he had my problem resolved.”

David Spitz

in the last week

“We had an AC unit installed middle of August 2024. It stopped working due to a bad weld when installed. Robert Fitzgerald came and found the leak pretty quickly and had it all patched up quickly. It was too cold to finish the repair job due to a pressure issue he said, but will come out to finish the repair when it's warmer again. So far a good experience with this issue on a new install from Dunn 1 hour and Robert. I expect a hassle free finish to the repair job come spring because they seem to stand behind their work. I'll update after the repair is finished.”

M Roark

in the last week

“We recently had Efrain Jr as our technician who came out to our home. He called ahead of time to let us know approximate time he would arrive. He arrived when expected. Efrain Jr was courteous and professional and honest. He put on shoe covers before entering our home. Our call was for a spring tune up/maintenance. Everything is working fine with the unit. He recommended or suggested some items but there was no pressure from him. He gave us a choice. An example he suggested a hard start kit for $401.00. There were two other suggestions of $1500.00 each. A bit pricey for us. We declined.”

Bethany Eckard

in the last week

“Marquis was amazing. He was very kind, called me to let me know when he was on his way, explained everything he was doing, what he was finding. Gave me all the information for what he found and never once talked down to me or like I had no idea what he was talking about. When I need HVAC help again I will be calling you guys! Do yourself a favor and use them to!”

Cesar Sagastume

a week ago

“I went through 4 other HVAC companies, knowing they will charge me for random things not needed to repair my air handler. All quotes came in the $1000s for a simple freeze over and leak. John Perkins was able to accurately diagnose and all systems were completely fine. I didn’t feel taken advantage of I’m glad I called this company definitely recommend them.”