Locally owned and operated, serving New Hampshire, offering a diverse array of carpentry and home improvement services. Twinbrook is quality driven and results oriented. Locally owned and operated, serving New Hampshire, Twinbrook Home Improvement offers a diverse array of carpentry and home improvement services. Focusing on the smaller to medium size jobs, we are quality driven and results oriented. Results being the job is what you envisioned from the start. Quality meaning it should last, and not need re-work unless it goes out of style. Please take a moment to look around the site.