Gordon was hired to perform bi-annual maintenance on my central air and natural gas heater. He showed up on time and went right to work on both units. He did a much better job than the last firm we hired as evidenced by the pile of leaves and seeds he cleared from the AC.
The unit required a recharge of freon as well. The heater is old but Gordon felt it was in fair enough condition, though I should be planning for its replacement in the next few years. Overall, great work.