Arrow Head manufactures a full line of hammer in the U.K. to fit machines from 1560 lbs to 110,000 lbs. Arrow Head Hammer is a world class hammer with all parts and support available locally in Hawaii.
"Cowper Construction finished my project on time and added some great ideas to improve the excavation design. Pro job and great skill with the equipment. I should have been using Cowper on my other jobs." ~ Kevin M
"Great company and I am happy with their work. Welcome back on my jobs any time!" ~ Kurt Davis
"My cesspool upgrade in Hawaii went down without any hangups. Thank you Mike and Bob!" ~ Aloha Jerry Driscoll
General contractors, civil engineers, septic systems, septic tanks, cesspool upgrades, leach fields, pump stations, grease traps, grease and sewer pumping
Aiea - Barbers Point NAS - Ewa Beach - Fort Shafter - Haleiwa - Hauula - Hawaii Kai - Honolulu - Kaaawa - Kahalu'u - Kahuku - Kailua - Kaneohe - Kapolei
Kunia - Laie - Mililani - Pearl City - Wahiawa - Waialua - Waianae - Waikiki - Waimanalo - Waipahu
and all surrounding areas!