Phoenix Extension Lts are a building and property maintenance company based in Swindon. We provide property modifications and building extensions. At Phoenix Extensions, we offer a complete extension builder service from design to completion and we can undertake projects large or small. We are extension specialists specialising in extension design, home extensions and new extensions. At Phoenix Extensions, we offer an extension builder service from design to completion and undertake projects large or small covering Marlborough, Swindon, Lechlade and the surrounding areas. We always offer our complete dedication to you, our customer.