Carl Whelan Building & Renovations is your certified and proven team for all your construction needs for residents on the Central Coast. Looking for a stylish and weather-resistant retaining wall for your backyard? Our experienced and handy team use quality Koppers log and treated pine to create a retaining wall that lasts. We don't just stop with retaining walls. Carl Whelan Building & Renovations also construct staircases, decks and pergolas that will make the perfect addition to your outdoor space. We can also complete your full home or bathroom renovation. No matter the project, contact us for an obligation free quote. Using a tight access excavator and providing a full engineering detail on the project, our team is able to handle your residential home improvement project with the right equipment and know-how. Call Carl Whelan Building & Renovations for an obligation-free quote. Servicing all suburbs throughout the Central Coast including, Gosford, Wyong, Erina, Woy Woy, Kincumber, Bateau Bay, Killarney Vale, Kanwal, Wadalba and everything in between.