Dean’s Heating & Air — Your HVAC Experts in Manchester, MD

Reliable comfort for your home or business in Manchester and surrounding Carroll County areas

Why Choose Dean’s Heating & Air?

  • Decades of Hands-On Expertise
    Locally owned and operated since         2019, Mike Dean—a Master Licensed HVAC Technician with over 30 years of experience—directly oversees and performs all work. deansheatandair.com
  • Fully Licensed & Insured in PA & MD
    We’re licensed in both states (PA Master License & MD), and hold a Pennsylvania Home Improvement Contract License.         deansheatandair.com+1
  • Fast, Transparent Service
    Benefit from industry standards like         free estimates (within 1–2 days), affordable $89 seasonal tune-ups, 24/7 emergency availability, and a 2-year labor warranty on installations. deansheatandair.com+1

Our Core Services

Air Conditioning

  • Installation: Personalized A/C design and installation to suit your property and preferences. deansheatandair.com
  • Service & Repairs: Prompt, honest diagnostics and fixes—no hidden upsells. deansheatandair.com
  • Ductless Mini‑Splits: Energy-efficient, flexible cooling for spaces without ductwork. deansheatandair.com

Heating

  • Installation & Replacement: Professional installation—from heat pumps to custom systems—with precise sizing and airflow considerations. deansheatandair.com+1
  • Service & Repairs: From ignition issues to thermostat problems, we handle it all. Emergency service available. deansheatandair.com+1
  • Preventive Maintenance: Bi-annual tune-ups to enhance efficiency, reduce costs, extend lifespan, and improve air quality. deansheatandair.com+1

Water Heaters

  • Installation & Maintenance: From traditional tank models to tankless units, we ensure uninterrupted hot water. deansheatandair.com

Proudly Serving Manchester, MD

Located in Glenville, PA, Dean’s Heating & Air extends expert HVAC services across Southern Central Pennsylvania and Carroll & Baltimore Counties in Maryland—including Manchester, MD. deansheatandair.com+1

What Our Customers Say

HomeAdvisor

Exceptional 4.9 rating from 58 verified reviews

—trusted for value, service, and quality.

Leave a Review

⭐ ⭐ ⭐ ⭐ ⭐

“Install or replace a heat pump… very happy with the quality work.”

— Eric G., Sykesville, MD

⭐ ⭐ ⭐ ⭐ ⭐

“Needed replacement immediately and he got it installed.”

— Richard G., Hanover, PA

⭐ ⭐ ⭐ ⭐ ⭐

“Very good choice. On time and best estimates. Job well done.”

— Alex R., Hanover, PA

Yelp (Apr 2025)
 A customer in MD praised Mike’s professionalism,

fair pricing, and precision:

Leave a Review

⭐ ⭐ ⭐ ⭐ ⭐

“Mike took time to answer all of my questions … best and most fair estimate … precision and personal attention to detail.” 

Quick Links & Offers

  • Request a Free Estimate – Fast response within 1–2 days
  • Book a Seasonal Tune‑Up – Only $89
  • Emergency HVAC Support – Available 24/7 for peace of mind
  • HVAC Tailored to Manchester, MD – Local, reliable service with personal care

Contact Us Today

Reach out now and experience dependable HVAC service designed for your comfort.

across Maryland and PA