There are two basic strategies for green home improvement: Source all the materials from salvage yards, using only recycled goods and creating no new waste, or shop responsibly for new, eco-friendly products designed to minimize their environmental impacts. Eco Home Improvement specializes in the latter, although it doesn’t ignore the former — just check out the neat countertops made from colorful shards of recycled glass, manufactured by Richmond’s Vetrazzo. The West Berkeley store also sells ecological flooring, cabinetry, tile, paint and plaster, and stains and sealers. All of its woods are certified by the Forest Stewardship Council, and its paints, stains, and sealers are nontoxic. The store’s sharp and elegant interior decor, with its products set in real-life installations, proves that environmentally friendly need not mean frumpy, rustic, or quaint. Though small, it provides products and consulting to enhance every room of the house with green materials.