Cas HVAC
HVAC contractor in Islip, NY 11779
About this company
Cas HVAC is listed as an HVAC contractor at 856 Johnson Ave in Islip, New York, in Suffolk County. It is one of 21 HVAC companies in ZIP 11779.
Other HVAC companies nearby
Accu-Temp Heating & Cooling140 Raynor Ave, Ronkonkoma
0.6 mi(631) 615-7255
Marine Specialist2231 5th Ave, Islip
0.9 mi(631) 580-0545
Nice Air Conditioning870 Marconi Ave, Islip
0.9 mi(516) 315-5928
Energywise, Inc.2231 5th Ave, Suite 26, Ronkonkoma
0.9 mi(631) 228-8401
Michael James Industries11 Drew Ct, Ronkonkoma
0.9 mi(631) 231-3434
Housing market around ZIP 11779
Figures describe the local area, not this company.
Typical home value$651,000+6.0% past year · +92% in 10 years
Typical rent$3,019+8.3% past year
12-month value outlook+3.3%
New homes permitted, 20251,399Suffolk County
Days to sale agreement33New York metro · 32 a year ago
Listings with a price cut16.6%New York metro
Sale price vs list102.3%New York metro
New construction sales390New York metro, Aug · −29% 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: Suffolk County permitted 1,399 new homes in 2025, including 287 apartment units. 8% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.