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Document and Entity Information - USD ($)
 12 Months Ended
Sep. 30, 2025
Dec. 12, 2025
Mar. 31, 2025
Document and Entity Information      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Sep. 30, 2025    
Document Transition Report false    
Entity File Number 001-32998    
Entity Registrant Name Energy Services of America CORP    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 20-4606266    
Entity Address, Address Line One 75 West 3rd Ave.    
Entity Address, City or Town Huntington    
Entity Address, State or Province WV    
Entity Address, Postal Zip Code 25701    
City Area Code 304    
Local Phone Number 522-3868    
Title of 12(g) Security Common Stock, par value $0.0001per share    
Trading Symbol ESOA    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 116,796,122
Entity Common Stock, Shares Outstanding   16,749,814  
Entity Central Index Key 0001357971    
Amendment Flag false    
Current Fiscal Year End Date --09-30    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Auditor Name Urish Popeck & Co., LLC    
Auditor Location Pittsburgh, Pennsylvania    
Auditor Firm ID 1013    
Documents Incorporated by Reference [Text Block]

DOCUMENTS INCORPORATED BY REFERENCE

The registrant incorporates by reference its definitive Proxy Statement with respect to its 2026 Annual Meeting of Stockholders, to be filed with the Securities and Exchange Commission within 120 days following the end of its fiscal year, into (Part III) of this Annual Report on Form 10-K.