A Jamestown company is asking the state Supreme Court to require the company that owns its property to maintain its Blackstone Avenue property.

Blackstone Business Enterprises Inc., which owns Blackstone Advanced Technologies, filed suit recently with complaints that Hill City Realty Holdings LLC, which is housed in Delaware, hasn’t properly maintained the roof of the Blackstone Avenue property.

According to the lawsuit, Blackstone Business Enterprises is required to pay the first $50,000 a year to maintain, repair or replace the roof on the building with Hill City Realty Holdings to pay costs when they exceed $50,000 a year. The Jamestown company is asking the court to require the landlord to pay $592,565 for roof repairs as well as legal fees.

“Plaintiff has demanded that defendant pay these costs according to the lease,” the lawsuit states. “Defendant has refused to pay these costs. The roof repairs were needed not only to maintain the integrity of the roof but also to maintain the safety of the premises. Despite being advised that the roof leaked so badly that beams have been compromised and fallen inside the building, causing an immediate safety hazard, defendant refused to pay defendant’s contractually mandated share of the needed repairs.”

Blackstone Advanced Technologies is a sheet metal fabricator that makes components for military, transportation and industrial customers. Some of their largest customers are Wabtec, Mitsubishi, Vapor Stone Rail, General Dynamic and Saft Battery.

According to Heather Turner, Blackstone Advanced Technologies president, these investments include the installation of a state-of-the-art Trumpf Laser, new ovens, a paint rack system, upgrades to the compressor system, and a Cincinnati Press Brake as part of a $2.9 million investment in the company’s infrastructure. Turner and her husband, Ricky Turner, purchased the company in 2014 from former owner Daniel Black.