Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the reference to our firm under the caption Experts and to the use of our reports
dated March 30, 2011, except for Note 3, as to which the date is September 14, 2011, and except for
Note 17, as to which the date is December 7, 2011, in the Registration Statement (Form S-4) and
related Prospectus of Nortek, Inc. for the registration of $250,000,000 aggregate principal amount
10% Senior Secured Notes due 2018.
/s/ Ernst
& Young LLP
Boston, Massachusetts
December 7, 2011