DO NOT DO BUSINESS WITH MARC MITTLEMAN aka Glenn Heating and Air or most recently M G M Heating and Air. This guy does NOT stand behind his work and is constantly changing business name and address to avoid people he screwed over. Terrible work and worst customer service. PLEASE do not do business with this clown YOU will be sorry!! If you don't believe me check out his reviews on Citysearch and yahoo under M G M Heating and Air in Arcadia, CA
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