The work was delayed and sporadic. The decking material (an installation of Playguard squares) was applied on the morning of the first significant snowfall. I realized the deck was not level. Because the deck is on the northside of the house, we had to wait until spring to walk on the surface and experience the user-unfriendly slope. In the meantime, I withheld final payment ($4,000) and Adams sent a preliminary notice that he woud place a lien on my property ? but, he did not follow through. In spring, the building inspector noted that the first-floor porch did not drain away from the house ? melting snow and water pooled in the center. Adams returned to shore up the porch floor, but it still did not pass inspection. There were other problems: The saved stair railing was installed upside down, and the new railings on the upper deck were placed flush with the deck surface (not allowing rain drainage into the gutters). The railings were also different from the design submitted to the city?s landmarks staff. Adams discounted my concerns about the upper deck. He said a consultant chose the Playguard surface and it was installed correctly. He never addressed the slope. We agreed on a payment of $2,000 -- half of the remaining $4,000. I hired another firm to remedy the lower porch drainage. They also replaced warped porch floorboards. They charged me $3,000. After a year, I felt water dripping from the upper deck onto my head, as I was sitting on the porch -- two or three days after a summer rain. I picked up a corner of a Playguard decking square and saw stagnant water. Water was also trapped along the three edges of the deck, because the railings were flush with the surface, and there was a lip on the lining installation that blocked rain drainage to the gutters (The newly installed gutters were always dry.) Brownish water stains had appeared along the supporting columns and the frames of the porch screens, and mold had started to grow on the wood screen door to the porch. I emailed Adams for the name of the subcontractor who installed the membrane under the Playguard surface on the deck. Adams emailed back, saying the subcontractor had gone out of business and there was no warranty. I finally contracted with a third firm that also works on historic homes. They removed the Playguard squares and the roof membrane, and installed a waterproof material that allows water to flow to the gutters. They provided a warranty. They installed a level deck, slightly elevated above the new lining. (I can finally place furniture and flower pots anywhere I desire.) They reconfigured the deck railings to match the design submitted to the city?s landmarks staff, and raised them so water drains freely into the gutters. They made several other adjustments, including turning the railing on the steps, so it?s no longer upside down. That cost me $14,000. In the end, I paid twice for the original contract.