McGarr Service Corp. 311 Arsenal St Watertown, MA, 02472 View Phone 617-783-2777 311 Arsenal St Watertown, MA 02472 View Website Experience & Reliability In Business Since: 1974 Years of Experience: 39 Family Owned & Operated About Featured Featured Businesses Radiant Cleaning Services Serving Watertown, MA View Phone Send to My Email Send to My Phone Print this Page