Don’t wait to hire Markool Heating & Cooling if you need an air conditioner installation in Middletown, MD. We have the expertise to complete your AC installation right the first time. With a brand-new system up and running, you’ll have increased control over the indoor atmosphere. The latest air conditioners are quieter and more reliable, so the replacement won’t add to your list of frustrations. Also, it’s less likely to break down when you need it most. We think that it’s better to provide our customers with AC products that will work like a charm.