John Hermanowski

Sayville NY

Signature Premier Properties

100 Closed Sales

$52.6M Total Value

$360K - $935K Price Range

$525.9K Average Price

Prior five years

About John

Jan is committed to providing an exceptionally high level of personalized service with Honesty, Integrity & Trust! He and his wife Christine have built their business on a very simple principle: “Take really good care of your clients & customers, treat them with respect, listen to their needs, keep them informed, fight for their best interests, make sure that one of their biggest financial & emotional transactions is a smooth & pleasant experience.”

Home Types: Townhouse, Condo, House, Co-op

Languages Spoken: English, Polish

Years of Experience: 14

Education: Long Island University C.W. Post Campus

Transaction History

1 Year
2 Year
5 Year

Seller Deals

Total Deals

Total Value

$9,015,250

Average Sale Price

$643,946

Price Range

$305K - $935K

Buyer Deals

Total Deals

Total Value

$4,502,000

Average Sale Price

$562,750

Price Range

$149K - $875K

1 Year View by Quarter

Seller Deals

Total Deals

Total Value

$17,460,750

Average Sale Price

$582,025

Price Range

$190K - $935K

Buyer Deals

Total Deals

Total Value

$8,262,000

Average Sale Price

$590,143

Price Range

$149K - $875K

2 Year View by Quarter

Seller Deals

Total Deals

Total Value

$32,415,750

Average Sale Price

$522,835

Price Range

$186K - $935K

Buyer Deals

Total Deals

Total Value

$20,171,000

Average Sale Price

$530,816

Price Range

$132K - $915K

5 Year View

Neighborhoods John Has the Most Experience In

John's Active Listings

$710,000
- 4 Beds
- 2.5 Baths
- 2,340 Sq Ft
27 Summerfield Dr

Lake Grove, NY
Beautiful Center Hall, Brookfield Colonial in Lake Grove - SMITHTOWN Township! This 4 bedroom, 2.5 bath home was fully redone inside and out in 2018. Pool and pavers were installed in 2020. Enter your new home through the foyer and immediately notice the larger rooms that indicate you are in a classic Brookfield Colonial. Spacious Living Room, open to a huge formal dining room perfect for large

John Hermanowski Signature Premier Properties

Co-Listing Agent

$635,000
- 3 Beds
- 1.5 Baths
39 E Lyons St

Melville, NY
Home is fully available! Welcome to this well-maintained 3-bedroom, 1.5-bath colonial located in the highly sought-after Half Hollow Hills School District. This inviting home features a bright and spacious Eat-In Kitchen, formal Dining Room, and a comfortable Living Room—perfect for both everyday living and entertaining. Hardwood floors flow throughout both the main and second levels, adding

John Hermanowski Signature Premier Properties

Co-Listing Agent

$665,000
- 4 Beds
- 2.5 Baths
- 2,302 Sq Ft
156 Colony Dr

Holbrook, NY
Welcome to this beautifully maintained 4-bedroom, 2.5-bath townhome offering a perfect blend of comfort, space, and modern amenities. The home features a bright and airy layout, with sunlit rooms that create a warm and inviting atmosphere throughout.The kitchen is a chef’s delight, complete with rich cherry cabinets, sleek stainless-steel appliances, and a spacious eat-in area that opens

John Hermanowski Signature Premier Properties

Awards and Designations

NAR - National Association of Realtors
GRI - Graduate REALTOR Institute
CBR - Certified Buyer Representative

John Hermanowski

(631) 743-4955

John Hermanowski

About John

Transaction History

Seller Deals

Buyer Deals

Production Over Time

1 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

2 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

5 Year View

Neighborhoods John Has the Most Experience In

John's Listings and Deals

John's Active Listings

Awards and Designations