No -Frost Air Conditioning & Heating Co
HVAC contractor in Ellicott City, MD 21043
About this company
No -Frost Air Conditioning & Heating Co is listed as an HVAC contractor at 4990 Waterloo Rd in Ellicott City, Maryland, in Howard County. It is one of 6 HVAC companies in ZIP 21043.
Other HVAC companies nearby
Maryland Heating & Cooling4943 Roundhill Rd, Ellicott City
0.6 mi(410) 465-0081
Greenfox Cooling, Heating & Plumbing9160 Rumsey Rd Ste B2, Columbia
1.1 mi(443) 574-4328
Buric Heating and Air Conditioning4301 Temora Manor Ln, Ellicott City
1.9 mi(410) 480-0394
Kingdom Comfort Heating & Cooling6081 Otterbein Lane, Ellicott City
2.0 mi(301) 200-1219
Climate Pro Mechanical3717 Ligon Rd, Ellicott City
2.9 mi(301) 205-0109
Housing market around ZIP 21043
Figures describe the local area, not this company.
Typical home value$627,000+0.2% past year · +37% in 10 years
Typical rent$2,481+4.4% past year
12-month value outlook+0.4%Roughly flat
New homes permitted, 2025728Howard County
Days to sale agreement16Baltimore metro · 14 a year ago
Listings with a price cut30.2%Baltimore metro
Sale price vs list100.1%Baltimore metro
New construction sales122Baltimore metro, Aug · −37% from last year
Source: Zillow (home values, rent, outlook and metro sales), data through Sep 2026. Permits: U.S. Census Bureau.
Typical home value, last 10 years
Source: Zillow Home Value Index, Sep 2026.
Local building angle: Howard County permitted 728 new homes in 2025, including 379 apartment units. 34% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.