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        https://osr.membershipinfo.center/index.html

        Categories
        Heating Contractors & Specialties, Air Conditioning Contractors & Systems, Furnace Repair & Cleaning

        Reviews

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        CC
        C. C.

        01/25/2018

        Overall
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        Have been using DAS for 20 plus years. Well respected everywhere and very trusted to do great work, every time. Will always use DAS for all my heating cooling and refrigeration needs. Satisfaction definitely guaranteed...

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        MB
        Mary B.

        05/31/2016

        Overall
        Expertise
        Professionalism
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        Dennis is a miracle worker!! He is my "go-to" guy from this point on. Never call another company or person. He's smart, professional and exact. He knows his business like no other. Thanks, Dennis!

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        Details

        Phone: (618) 344-1500

        Address: 211 S Seminary St, Collinsville, IL 62234

        Website: https://osr.membershipinfo.center/index.html

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