Precision General Construction is a Clark-based contracting firm with over 25 years of experience specializing in renovations and additions. They are BPI Certified Home Energy Auditors with the NJ Energy Star Program. Precision installs vinyl siding, roofing, windows and gutters. They also renovate kitchens and bathrooms and build custom decks and railing systems. Precision is always researching new products and services to introduce to the homeowner. The roof cleaning division is a service that can provide homeowners with a roof that looks like new without the replacement cost. They also install Tripolymer foam insulation.