BEWARE!! Unlicensed, has been arrested for operating a home improvement business without a license. http://www.nassaucountyny.gov/agencies/da/newsreleases/2009/072109unlicensedcontractor.html and for grand larceny and fraud http://m.topix.com/forum/city/hicksville-ny/TV3S41UKQH0NPM77S Another business owned by Russell Martini (Air Force Design Corp.) has been listed by Nassau County Office of Consumer Affairs as a Home Improvement Contractor to Avoid. http://www.newsday.com/business/inside-long-island-business-1.811933/nassau-warning-on-contractors-1.2512125 Martini also owns At Your Service Maintenance and has performed work under the name Air Comfort Mechanical Corp. (without permission of the actual owner of Air Comfort). After three times to my house, he was unable to get the wiring right on my boiler. The first two times, he left us with no heat or hot water. The third time the heat would not shut off because he had short-circuited the thermostat. This destroyed both the thermostat and the low-water alarm. Total cost to repair the damage he caused: $823. AVOID AT ALL COSTS!!!