| Cover | May 17, 2022 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | May 17, 2022 |
| Entity File Number | 001-40147 |
| Entity Registrant Name | QualTek Services Inc. |
| Entity Central Index Key | 0001839412 |
| Entity Tax Identification Number | 83-3584928 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 475 Sentry Parkway E |
| Entity Address, Address Line Two | Suite 200 |
| Entity Address, City or Town | Blue Bell |
| Entity Address, State or Province | PA |
| Entity Address, Postal Zip Code | 19422 |
| City Area Code | 484 |
| Local Phone Number | 804-4585 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Common Stock [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Class A Common Stock |
| Trading Symbol | QTEK |
| Security Exchange Name | NASDAQ |
| Warrants [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Warrants |
| Trading Symbol | QTEKW |
| Security Exchange Name | NASDAQ |
