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                                                Filed Pursuant to Rule 424(b)(3)
                                                   Registration Number 333-50031

 PROSPECTUS SUPPLEMENT DATED AUGUST 14, 1998 TO PROSPECTUS DATED APRIL 30, 1998

         Integrated Electrical Services, Inc. reported operating results for the
nine and three months ended June 30, 1998 as follows:

                      INTEGRATED ELECTRICAL SERVICES, INC.
                          SUMMARY RESULTS OF OPERATIONS
                (Dollars in Thousands, Except Per Share Amounts)
                                   (Unaudited)

Nine Months Ended Three Months Ended June 30, June 30, ----------------------- ----------------------- 1997 1998 1997 1998 --------- --------- --------- --------- (Pro Forma) (Pro Forma) Revenue .......................................... $ 250,296 $ 303,077 $ 87,258 $ 115,287 Gross profit ..................................... 51,408 64,948 17,719 23,993 Operating income ................................. 20,673 27,851 7,781 10,700 Income before taxes .............................. 20,332 27,915 7,529 10,872 Net income ....................................... $ 11,459 $ 16,063 $ 4,345 $ 6,381 Basic earnings per share ......................... $ .45 $ .62 $ .17 $ .24 Diluted earnings per share ....................... $ .45 $ .61 $ .17 $ 24 Shares used in the computation of earnings per share - Basic .................................... 25,555,336 25,859,032 25,555,336 26,475,914 Diluted .................................. 25,675,336 26,216,281 25,675,336 27,151,005
INTEGRATED ELECTRICAL SERVICES, INC. CONSOLIDATED SUMMARY RESULTS OF OPERATIONS (Dollars in Thousands, Except Per Share Amounts) (Unaudited)
Nine Months Ended Three Months Ended June 30, June 30, ----------------------- ----------------------- 1997 1998 1997 1998 --------- --------- --------- --------- Revenue .......................................... $ 79,847 $ 219,620 $ 30,746 $ 115,287 Gross profit ..................................... 14,658 46,200 5,622 23,993 Non-cash non-recurring compensation charge in connection with the Acquisitions .......... -- 17,036 -- -- Operating income (loss) .......................... 4,488 (2,046) 2,128 10,700 Income (loss) before taxes ....................... 4,532 (1,698) 2,143 10,872 Net income (loss) ................................ $ 2,685 $ (8,141) $ 1,326 $ 6,381 Basic earnings per share ......................... $ .60 $ (.49) $ .30 $ .24 Diluted earnings per share ....................... $ .60 $ (.49) $ .30 $ .24 Shares used in the computation of earnings per share - Basic ................................... 4,492,039 16,757,359 4,492,039 26,475,914 Diluted ................................. 4,492,039 16,757,359 4,492,039 27,151,005
Total pro forma combined revenues for the nine months ended June 30, 1998 rose 21% to $303.1 million from $250.3 million for the comparable period of fiscal 1997. Pro forma combined operating income for the first nine months of 1998 grew to $27.9 million, a 35% increase over the $20.7 million reported in the same period last year. Pro forma combined net income for the nine-month period increased to $16.1 million, or $0.61 per diluted share, versus $11.5 million, or $0.45 per diluted share, reported for the first nine months of fiscal 1997, representing a 36% increase in earnings per diluted share. Total revenues for the third quarter of fiscal 1998 were $115.3 million, a 28% increase over the $87.3 million reported in the comparable quarter last year. Operating income rose 37% to $10.7 million from $7.8 million in the third quarter last year. Net income for the quarter grew to $6.4 million, or $0.24 per diluted share, a 41% increase in earnings per diluted share over net income of $4.3 million, or $0.17 per diluted share, for the third quarter of fiscal 1997.