Gramman Plumbing And Heating Corp

HVAC contractor in Carle Place, NY 11514

About this company

Gramman Plumbing And Heating Corp is listed as an HVAC contractor based in Carle Place, New York, in Nassau County. Federal motor carrier records list 11 drivers and 11 trucks for the company. It is one of 1 HVAC companies in ZIP 11514.

Fleet size

Drivers11

Trucks11

Last federal filing: Apr 2025. Source: FMCSA.

Strong market, crowded fieldArea profitability for HVAC in ZIP 11514

Housing demand64

Sales pace, new listings and new construction. Source: Zillow

Customer spending power95

Household income and home values

Room for another HVAC company23

More crowded than 77% of US ZIPs

Scored against every US ZIP. An index of local conditions, not this company's results.

County context

One of 185 HVAC companies in Nassau County, NY.

1,423 general contractors in Nassau County, NY.

All 2,664 construction companies in Nassau County, NY.

ZIP 11514 at a glance

Population: 4,544 (1,938 per sq mi)
Median age: 45
Households: Median income $151,964 · 67% earn six figures
Housing: 78% owner-occupied
Workforce: 70% labor-force participation · 3.3% unemployment

ZIP figures are US Census estimates for the ZIP area, not the company.

Housing market around ZIP 11514

Figures describe the local area, not this company.

Typical home value$853,000+4.8% past year · +70% in 10 years

12-month value outlook+2.4%

Days to sale agreement33New York metro · 32 a year ago

New homes permitted, 2025821Nassau County

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.