Systematic Control Corporation
HVAC contractor in Great-Neck, NY 11021
About this company
Systematic Control Corporation is listed as an HVAC contractor at 556 Northern Blvd in Great-Neck, New York, in Nassau County. It is one of 2 HVAC companies in ZIP 11021.
Other HVAC companies nearby
Systematic Control Corporation92 Northern Blvd, Great Neck
0.9 mi(516) 482-1374
Hvac Plus Inc439 Middle Neck Rd, Great Neck
1.5 mi(516) 829-8300
Marcus Ave Plumbing and Drain1983 Marcus Ave, New Hyde Park
2.0 mi(516) 502-0062
New Hyde Park Plumbing Heating and Cool2062 Lakeville Rd, New Hyde Park
2.2 mi(516) 502-1177
Excellent Air Conditioning and Heating Services Inc.43-23 221st St, Queens
2.6 mi(718) 428-6987
Housing market around ZIP 11021
Figures describe the local area, not this company.
Typical home value$1,100,000+8.5% past year · +37% in 10 years
Typical rent$4,578
12-month value outlook+2.5%
New homes permitted, 2025821Nassau 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: Nassau County permitted 821 new homes in 2025, including 159 apartment units. 6% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.