Document and Entity Information - shares	9 Months Ended
	Mar. 31, 2018	May 01, 2018
Document And Entity Information
Entity Registrant Name	EnviroStar, Inc.
Entity Central Index Key	0000065312
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		11,171,180
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2018