Cowper Construction

Cowper Construction has been serving the Hawaiian Island of Oahu for over 40 years. We are a full-service site work contractor, dedicated to providing top-notch engineering solutions for our clients. Our extensive experience and expertise enable us to handle all aspects of general engineering needs, from grubbing and clearing to finish grading. We are committed to ensuring that every project is completed efficiently and to the highest standards.

Our Services

Our services include demolition, lot clearing, rock breaking, and all site preparation for building. We also specialize in septic systems, including treatment plants, large fiberglass tanks, Knight Aerobic Systems, leach fields, pump stations, and grease traps. Our team is certified to install these systems, ensuring that your project is completed correctly and safely.

Community Involvement

We are proud to be a locally owned and operated business, deeply rooted in the community. Our commitment to serving Oahu has allowed us to build strong relationships with our clients and partners. We believe in giving back to the community that has supported us and strive to make a positive impact through our work.

Testimonials

We have received numerous testimonials from satisfied clients, praising our professionalism, work ethic, and dedication to excellence. From cesspool upgrades to septic system installations, our clients appreciate the attention to detail and the quality of our work.

Our Reach

We service the entire Island of Oahu, including 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, and Waipahu, and all surrounding areas. Contact us today to discuss your project needs and how we can assist you.