HVAC companies in Westminster, MD 21157
9 HVAC companies, with local market data for this ZIP.
General contractors 41Roofing and exteriors 14Remodeling 11HVAC 9Electricians 7Concrete and masonry 7Carpentry, drywall and windows 6Garage doors 4Excavation and demolition 4Other construction trades 4Painting 2Flooring and tile 1
Area profitability, HVAC63 / 100Strong market, crowded field
Typical home value$461,000+0.9% in the past year
New homes permitted, 2025153Carroll County
Homeowners76.8%14,646 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
A-1 Heating & Air ConditioningHVAC contractor · 406 Lucabaugh Mill Rd C3, Westminster(410) 876-5909 · a1heatingandairconditioning.com
AC QuestHVAC contractor · 1100 Business Pkwy S, Westminster(410) 871-2310 · ac-quest.com
Bob Bowers IncHVAC contractor · 51 John St, Westminster(410) 848-8737 · bobbowersinc.com
First Class MechanicalHVAC contractor · 835 Baltimore Blvd, Westminster(410) 876-2434 · firstclassmechanical.com
Husky Heating OilHVAC contractor · 82 John St, Westminster(410) 418-8000 · huskyheatingoil.com · 6 drivers, 9 trucks
JEM Heating and Air ConditioningHVAC contractor · 150 Airport Dr, Westminster(410) 840-9328 · 4jem.com · 1 driver, 1 truck
R.M. Schmidt, Inc.HVAC contractor · 525 Old Westminster Pike #B, Westminster(410) 876-8448 · rmschmidtinc.com · 10 drivers, 1 truck
Vince Marino PlumbingHVAC contractor · 712 Gorsuch Rd, Westminster(410) 876-1928 · vincemarino.com · 10 drivers, 8 trucks
Will Air LLCHVAC contractor · 55 Aileron Ct #4, Westminster(410) 549-9300 · willairllc.com
HVAC in ZIP 21157 at a glance
Local building angle: Carroll County permitted 153 new homes in 2025. 17% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.