HVAC companies in Ellicott City, MD 21042
5 HVAC companies, with local market data for this ZIP.
General contractors 25HVAC 5Remodeling 4Roofing and exteriors 3Carpentry, drywall and windows 2Painting 2Garage doors 2Other construction trades 1Fences and decks 1Excavation and demolition 1
Area profitability, HVAC78 / 100Strong market, balanced field
Typical home value$797,000+1.5% in the past year
New homes permitted, 2025728Howard County
Homeowners84.7%14,958 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
All American MechanicalHVAC contractor · 10690 Clarksville Pike, Ellicott City(410) 992-8200 · allamericanaircondition.com
All American Mechanical IncHVAC contractor · 10690 State Route 108, Ellicott City(410) 928-7076 · ellicottairconditioningandheating.com
All American Mechanical IncHVAC contractor · 10690 MD-108, Ellicott City(410) 992-8200 · allamericanaircondition.com
Buric Heating and Air ConditioningHVAC contractor · 4301 Temora Manor Ln, Ellicott City(410) 480-0394 · burichvac.com
Climate Pro MechanicalHVAC contractor · 3717 Ligon Rd, Ellicott City(301) 205-0109 · climatepro.net
Parker Fuel Company IncHVAC contractor · 9319 Baltimore National Pike, Ellicott City(410) 465-3800 · 16 drivers, 10 trucks
HVAC in ZIP 21042 at a glance
Local building angle: Howard County permitted 728 new homes in 2025, including 379 apartment units. 23% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.