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HistoryWhile Lowell Janitorial Supply was established in 1983, it began operations in 1960 as Bertos Contract Cleaning. Lowell Janitorial Supply has now expanded to include an additional Tyngsboro, MA location to accommodate the growing service business. Lowell Janitorial supply has earned top customer satisfaction ratings for their in house equipment repair and service entity. Today Lowell Janitorial Supply Co. resides at 590 Dutton st in Lowell, Massachusetts and 5 Middlesex Rd, Tyngsboro, Massachusetts.SpecialtiesLowell Janitorial Supply (LJS) was established in 1983 as a family owned business. They have grown into an industry leader in cleaning supplies and Janitorial equipment support/service across the commercial and consumer market. They have been a member of the International Sanitary Supply Association (ISSA) since 1983. Lowell Janitorial Supply is unique with it's staffed, industry knowledgeable sales and service technicians who serve as trusted advisors within the Janitorial business. Lowell Janitorial Supply has a comprehensive offering of cleaning products and facility maintenance cleaning equipment. Supplies are proudly displayed in their showroom with products designed to meet every need, including an environmental green line. Products can be purchased on site or be delivered as required. LJS stands alone with their award winning in house janitorial equipment service offering. Their 100 plus years of industry knowledge and experience allows them to support and service the majority of floor and carpet machines. LJS also rents floor and carpet machines!

We have new and used restaurant equipment. We can design new restaurants as well as renovate existing kitchens.

Founded in 1961, Essco Calibration Laboratory is one of the leading premier full-service calibration and repair laboratories in the United States. Located in Chelmsford, Mass., it offers an array of calibration services for life sciences/ medical instruments and equipment, such as burets, centrifuges, pyrometers, RO water systems, temperature mapping/profiling, temp/RH chart recorders, Temp/RH monitoring systems, spectrophotometers and many more. The firm caters to various manufactures, including Advanced Fiber Solutions, Rhode & Schwartz, Associated Research, Genrad, Westinghouse, to name a few. Essco Calibration Laboratory is an ISO 9001:2008 certified, as well as ISO/IEC 17025:2005 and ANSI/NCSL Z540-1-1994 accredited company.