About TRIM One stop for design and build new homes and renovations/extensions. TRIM Building Services is based in the heart of Wollongong, services the Illawarra region with sound and reputable building works.Our mission is to provide Integrity, Quality and Professionalism across the range of building services we offer. This has seen Trim evolve to be the successful, respected company it is today. We build on our quality: While our home designs themselves are flexible, we never compromise on quality. We only use materials from leading suppliers, and insist that our trades finish all their work to the highest standards. Quality is the hallmark of our work, our people and our processes. We build on our integrity: Satisfying clients is at the heart of everything Trim does.We want you to feel sure you've chosen a company that you can trust.We provide competitive price and have our crystal clear price policy. What we quote is what you pay.