239 West Service Road, Hartford, CT Winstanley Construction Management is underway with the 146,000 square foot expansion of 239 West Service Road, Hartford, CT for its tenant, Sims Metal Management Limited. SMML is a metal processing company serving the aerospace and specialty-steel industries, which recently committed to Hartford by signing a long-term lease with Winstanley for its 425,000 square foot, newly-renovated facility.