https://www.hartmannco.us/home daily 0.75 2026-06-25 https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/7dbe5116-378a-47b5-b986-a38db04cbd13/59fa33f485262e2a2a44900f127b5810-uncropped_scaled_within_1536_1152.webp https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/d2681c08-13eb-4c5a-a061-cfaf4252ff41/IMG_0690.jpg https://www.hartmannco.us/about daily 1.0 2026-06-26 https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/28ce1170-e463-4a98-a8b0-0e6bf73bb80a/Hartmann+Co.+Business+Card+%282%29.png https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/7dbe5116-378a-47b5-b986-a38db04cbd13/59fa33f485262e2a2a44900f127b5810-uncropped_scaled_within_1536_1152.webp https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/d2681c08-13eb-4c5a-a061-cfaf4252ff41/IMG_0690.jpg https://www.hartmannco.us/contact daily 0.75 2026-06-25 https://www.hartmannco.us/gcgm daily 0.75 2026-06-26 https://images.squarespace-cdn.com/content/v1/5ec321c2af33de48734cc929/1618511387030-5LI1E5QMVTQ2RY9S00A4/20140228_Trade+151_0046+1.jpg GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/5ec321c2af33de48734cc929/1618511467879-K5J9BYNACHJVDV3BNSFU/Aro+Ha_0387+1.jpg GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/5ec321c2af33de48734cc929/1618511743693-J3A8OYH6X8C7RXNU5K0J/20140301_Trade+151_0124+1.jpg GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/4d5061e4-5e56-4ddd-b356-d675e7b5f3c7/0ac8aad8e09364a5ec3473b3ac2fc45b-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/eb720774-4ec1-4ec4-9c57-f2845b97a3b0/0e79dbac4cb55f100f168d27f6bc7a62-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/02ff3ece-ffeb-4842-b655-f087f9967bc6/5ebf197f49f15d5438e4169a50e0dd25-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/fc5879c0-436f-44b1-994f-087275418918/05f308c87d47e96bb112a6774d9acd01-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/cfa0e150-38d1-4e38-9211-3cc1e9a0cc50/7f3cbfee39189cab756961ba754e21fb-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/37ee21da-e9c0-48ae-ad68-9311d81527b2/09a5dba63eb5faa22aa174fa93cc1621-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/30003caa-157b-484b-aa4c-50bdfc909deb/13b4751f6dd778a7d084d8255bad0ca9-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/53571abd-8aa6-433c-914c-bf7d3af61842/17f35ffe6a880eaa095d9073f10eeeb2-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/ac3c3e3f-6745-4210-9689-483c673f4390/59fa33f485262e2a2a44900f127b5810-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/54cc07ee-bb26-4da6-955f-1a256e82027a/077f990f9a2b2d65639357a31abc44cd-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/77ac4fcd-9f12-49ef-beca-ac4ae3e6f7fa/78df17ad3691a4af60658f95665450f0-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/a06fdea5-6fc3-453f-a261-98da8b4b1f19/100fc1cf0220d978927a1a6cf29c1f86-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/c5e81442-9f68-48e6-b6b6-581609252ca5/5225ca601959acebc1151ca34f9598c2-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/c8eb0c9c-514b-4034-a1c1-06dce6f0669e/8535a878101cec0740a61e0459867344-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/6a623e93-b54b-4d57-bc32-bbe224108421/148623eb0e5514c6b3daff183c87899d-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/8cf7caeb-3027-4505-a6d5-4ce57782c6bc/901078333146e40fbd45cb5ab9bde91d-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/4c87c313-6d9e-4292-85c1-bf11bcd91bf2/f67deb12ee2cf322b361888d05fe1275-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/06e40d02-f105-4007-93f7-96062d363621/fc6202d9a4a355f40505b15280b45194-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/83f40b83-1764-4d42-9819-1f970447d950/d8dc9c769d9368a2dc0fcf6e9f7ce712-uncropped_scaled_within_1536_1152.webp GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/af39dd5b-701b-4ee8-8603-75127676e262/867981-YKbNSjLvY87t9gKP.jpg GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/7b59f3df-bbef-4325-b9a4-e02a52f12f95/L3220155_9.jpg GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/e6208c3e-250b-43cc-84ba-a1c34b089aca/867981-syLfDh8rGZVPvS9Q.jpg GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/f227572b-7736-49d4-9768-986daac20448/IMG_0339.jpeg GCGM Building Corp. https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/7f601b95-3932-485e-acde-99f903fc9a9b/5ebf197f49f15d5438e4169a50e0dd25-uncropped_scaled_within_1536_1152.webp https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/bcb3798e-0802-48f6-a47e-63f37a1fedd1/59fa33f485262e2a2a44900f127b5810-uncropped_scaled_within_1536_1152.webp https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/a68a064d-96cc-426c-975b-ef2f6b99253e/148623eb0e5514c6b3daff183c87899d-uncropped_scaled_within_1536_1152.webp https://video.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/e1456ef4-27bc-4777-b2bc-5df04dc17b18/playlist.m3u8 https://video.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/e1456ef4-27bc-4777-b2bc-5df04dc17b18/thumbnail GCGM Building Corp. GCGM Building Corp. creates custom homes, renovations, and detailed building work in Southampton, NY with care, precision, and clear project stewardship. https://www.hartmannco.us/gallery daily 0.75 2026-07-29 https://images.squarespace-cdn.com/content/v1/5ec321c2af33de48734cc929/1607694644871-IC85FNH781UNZSZEGHDR/Aro+Ha_0428.jpg Hartmann Gallery https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163347050-B1GLKJFQTO40W21KD6KF/IMG_0677.jpg Hartmann Gallery 'Caterats' by Gary Hartmann, 2019, acrylic based oil on canvas, 30"x48" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163983148-DIOOLQVE4ESSJQ1MD1ZG/IMG_0679.jpg Hartmann Gallery 'Nine Eleven' by Gary Hartmann, 2003-2006, acrylic base oil on canvas, 72"x42" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163444676-JDRF8W3PP4NMUNPTGXDF/IMG_0681.jpg Hartmann Gallery 'Second Universe' by Gary Hartmann, 2022, acrylic base oil on canvas, 48"x36" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163495320-LH83G3WNAG9V4Y3JFVFS/IMG_0683.jpg Hartmann Gallery 'Brothers' by Gary Hartmann, 2003, acrylic on canvas, 48"x36" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163519455-M5DBP9JS7N76WMRLCQ7T/IMG_0685.jpg Hartmann Gallery 'Running Away' by Gary Hartmann, 2011-2013, acrylic base oil on canvas, 83 1/2" x 61 1/2" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163550233-59WKN7OP3ZGJ2DT5L4J7/IMG_0688.jpg Hartmann Gallery 'The Yard' by Gary Hartmann, 2007-2012, acrylic base oil on canvas, 60"x48" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163592316-19LOHWL29TJ4XIJ4S01G/IMG_0689.jpg Hartmann Gallery 'Red Tree' by Gary Hartmann, 2013, acrylic base oil on canvas, 48"x24" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163635061-7LQCRMPGLIW16NZ0MS5A/IMG_0690.jpg Hartmann Gallery 'Arnesto the Puppeteer' by Gary Hartmann, 2012-2014, 60"x84" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163674872-JKY2P93ACRXAZ8M35IQL/IMG_0691.jpg Hartmann Gallery 'Feathers' by Gary Hartmann, 2009, acrylic on canvas, 30"x48" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163730737-BVKWG8MBEYCSVF0O4CPX/IMG_0692.jpg Hartmann Gallery 'The Playground' by Gary Hartmann, 2012, acrylic base, oil on canvas, 60"x48" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163760169-VUOELQYQUHD9AESOQ355/IMG_0693.jpg Hartmann Gallery 'Picassos Pals' by Gary Hartmann, 2018, acrylic base oil on canvas, 48"x30" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163784652-5TXFCYZK6PSBRX1J8UGK/IMG_0696.jpg Hartmann Gallery 'Parachute' by Gary Hartmann, 2011-2012, acrylic base oil on canvas, 48"x36" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163811946-NT4CCNRX5MUJPUY9P6NL/IMG_0698.jpg Hartmann Gallery 'No One's Clown' by Gary Hartmann, 2004, acrylic base oil on canvas, 60"x40" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163854019-BO58WK0HQ2DJJNC9JDP7/IMG_0967.jpg Hartmann Gallery 'Evil Eye' by Melinda Hackett, 2022, oil on canvas, 62"x46" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782163895912-BYXNQKHFGXLW2HBRZ6SL/IMG_0968.jpg Hartmann Gallery 'Blue Tree' by Melinda Hackett, 2022, oil on canvas, 62"x46" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782403341628-JWI5U7WSHR9XS6JE1WW3/IMG_1092.jpg Hartmann Gallery 'Green Finch' by Melinda Hackett, 2022, oil on canvas, 62"x46" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/1782403362287-ELKN5M05Q6GBA5KFOKPH/IMG_1095.jpg Hartmann Gallery 'Fishy' by Melinda Hackett, 2022, oil on canvas, 62"x46" https://images.squarespace-cdn.com/content/v1/69e8d547f028d6249b10a899/5d7d6e7c-0356-420b-96c6-e87605352e0a/IMG_1321.jpg