World’s Greatest Heating & Air

Previous company I contacted left me feeling as if I was a bother when I called. So I tired calling someone else and some guy named William answered. He was very helpful and everything I asked was answered. Look forward to doing business in the future.

Darius was amazing came out and took care of me. I was needing needing someone like Darius I highly recommend worlds greatest and especially Darius thank you

I may be a little biased but I've worked with these guys to redo my entire home HVAC and multiple rental properties. The work is done right every time. We went from having multiple air flow issues and hot spots in our home to a consistently cool and balanced home!

William Shi was super nice and knew exactly what to do. I'm so glad I didn't have to call anyone else!! Thank y'all again!!

Darius Brown is great he is very talented and respectful he gave me a awesome price and was on time and quick on his feet thank you I highly recommend him

I may be a little biased, but World’s Greatest is exactly that! It’s not the awesome name, or the equipment used… it’s the amazing people who are the heart of this amazing company! The beautiful thing is that the heart of this company makes the experience truly one of a kind! Duval and St. Johns county 2023… get ready!

I sure enjoyed the parade so proud y'all won twice I know
Jesse Manning and his team worked hard, it showed! Love this business.

Oscar is very professional and attentive, he answered the concerns he had and did an excellent job. In addition, he is very detailed on the work done.

William was very responsive and knowledgeable about my HVAC system. His customer service was the best I've received in this industry

I have known these owners for a very long time!! They installed the unit at my sister's house & provided annual maintenance several times. They are prompt & professional & I would definitely recommend them to anyone in the Jacksonville area!!