St. Mary's County · 20634
Heating & Air Conditioning in Great Mills, MD
Great Mills sits along Great Mills Road (Route 246), between Route 5 and Lexington Park.
4.9 on Google · 387 reviews
- 284
- Great Mills homes we've served
- 34
- visits here in the last 12 months
- 4.9
- average Google rating
- 7 mi
- from our Hollywood shop, as the crow flies
Our work in Great Mills
Our records for Great Mills go back to 2020. Since then we've finished 385 visits here: 246 repair calls, 63 tune-ups, 16 new systems installed and 32 replacement estimates.
Our Great Mills repair calls split almost evenly between heating season and cooling season.
April is our busiest month in Great Mills.
Of the 16 Great Mills homes where we've recorded the equipment, 8 run a heat pump; the rest have oil heat (8), gas furnaces (6) and central AC (4).
The brands we see most here: American Standard, Ecobee and Goodman / Daikin.
You'll find our vans on Goldenrod Drive, Belvoir Road, Stoney Run Drive, Brawny Street, Meadowlark Drive and Westmeath Way and the roads around them.
About Great Mills
New to NAS Patuxent River? Welcome.
Our most recent visit here was in October 2026.
Google reviews
What Great Mills neighbors say
Darryl very professiinal and he explained details in what he is planning to do next. He's a keeper.
Services in Great Mills
SMECO rebates in Great Mills
We've filed 2 SMECO rebate applications for Great Mills homes, so we know the paperwork.
SMECO pays up to $975 on a qualifying heat pump and $500 on central air.
Program terms and funding apply.