ISM Construction is a family-owned custom home builder founded in 1994 serving the Lebanon, Anneville, Lancaster, Berks, York, Dauphin, Mechanicsburg and Harrisburg areas of Central Pennsylvania. With nearly 35 years of experience in new residential, commercial, and remodel construction, ISM Construction has been privileged to add 500+ completed jobs to our portfolio through referrals or repeat customer requests. The wide variety of projects that we’ve encountered through the years, along with continual client satisfaction, has given us the confidence and expertise to build your vision with excellence.