Document and Entity Information - shares	3 Months Ended
	Sep. 30, 2017	Nov. 10, 2017
Document And Entity Information
Entity Registrant Name	EnviroStar, Inc.
Entity Central Index Key	0000065312
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		10,805,828
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2017