UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

FORM 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF
THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended: July 31, 2004

Commission file number: 1-14315

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter periods that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes  þ No  o

Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Exchange Act). Yes  þ No  o

APPLICABLE ONLY TO CORPORATE ISSUERS

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practical date.

Common Stock, $.01 Par Value—20,287,794 shares as of July 31, 2004

TABLE OF CONTENTS

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PART I — FINANCIAL INFORMATION

Item 1. Financial Statements.

NCI BUILDING SYSTEMS, INC.
CONDENSED CONSOLIDATED BALANCE SHEETS
(IN THOUSANDS)

See accompanying notes to condensed consolidated financial statements.

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NCI BUILDING SYSTEMS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
(IN THOUSANDS, EXCEPT PER SHARE DATA)
(UNAUDITED)

See accompanying notes to condensed consolidated financial statements.

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NCI BUILDING SYSTEMS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
(IN THOUSANDS, EXCEPT PER SHARE DATA)
(UNAUDITED)

See accompanying notes to condensed consolidated financial statements.

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NCI BUILDING SYSTEMS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(IN THOUSANDS)
(UNAUDITED)

See accompanying notes to condensed consolidated financial statements.

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NCI BUILDING SYSTEMS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
JULY 31, 2004
(UNAUDITED)

NOTE 1 — BASIS OF PRESENTATION

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting only of normal recurring entries) considered necessary for a fair presentation have been included. Certain prior year amounts have been reclassified to conform with the current year presentation. Operating results for the fiscal three month and fiscal nine month periods ended July 31, 2004 are not necessarily indicative of the results that may be expected for the fiscal year ending October 30, 2004.

For accounting purposes, the Company uses a four-four-five week calendar each quarter with year end on the Saturday closest to October 31.

For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended November 1, 2003, filed with the Securities and Exchange Commission.

Prior to the third quarter of fiscal 2004, a portion of the revenue for the metal coil coaters segment was recognized upon completion of the painting process for consigned coils owned by the customer. This accounting treatment met the criteria to be recognized as revenue per Staff Accounting Bulletin No. 101. Due to the reduction of consigned inventory programs and changes to when steel coil ownership occurred during the third quarter of fiscal 2004, the Company changed its policy to recognize revenue upon shipment of the coils. The impact of the accounting change during the three months ended July 31, 2004 was an immaterial reduction to revenues and operating income of approximately $4.5 million and $0.8 million, respectively. This change would not have had a material effect on any prior periods presented and is not expected to materially affect future results.

NOTE 2 — INVENTORIES

The components of inventory are as follows:

Raw materials increased $59.4 million due to the increase in steel prices, the purchase of foreign steel on the spot market and the reduction of the consigned inventory programs by the steel mills.

NOTE 3 — BUSINESS SEGMENTS

The Company has divided its operations into three reportable segments based upon similarities in product lines, manufacturing processes, marketing and management of its businesses: metal building components, engineered building systems and metal coil coaters. Products of all three segments are similar in basic raw materials used. The metal building components segment products include roof and wall panels, doors, metal partitions, metal trim and other related accessories. The engineered building systems segment includes the manufacturing of structural framing and value added engineering and drafting, which are typically not part of metal building components or metal coil coating products or services. The metal coil coating segment consists of cleaning, treating, painting and slitting continuous steel coils before the steel is fabricated for use by various industrial users. The reporting segments follow the same accounting policies used for the Company’s consolidated financial statements. Management evaluates a segment’s performance based primarily upon operating income before corporate expenses. Intersegment sales are recorded based on weighted average costs and consist of building components

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provided to the engineered building systems segment, structural framing provided to the metal building components segment by the engineered building systems segment, and hot rolled, light gauge painted, coated and slit material and services provided by the metal coil coaters segment to both of the other segments. The Company is not dependent on any one significant customer or group of customers. Substantially all of the Company’s sales are made within the United States. Certain financial data for prior periods has been reclassified to conform to the current presentation.

NOTE 4 — STOCK INCENTIVE PLANS

On December 12, 2002, the Board of Directors approved a new long-term stock incentive plan that provides for the grant of stock options, stock appreciation rights, restricted stock awards, performance share awards and phantom stock awards. At July 31, 2004, only nonqualified stock options and restricted stock awards have been granted. All stock options have been granted at an exercise price that equals market price as of the date of grant and have a ten-year term. The restricted stock is generally subject to transfer restrictions that lapse over four years, although certain restricted stock awards have been granted by the Compensation Committee of the Board of Directors with restrictions that lapse over substantially longer periods.

The Company accounts for stock-based employee compensation using the intrinsic value method described in Accounting Principles Board (“APB”) Opinion No. 25 and related interpretations, which generally requires the amount of compensation cost that must be recognized, if any, is the difference between the exercise price and the market price of the underlying stock on the date of the grant. Alternatively, Statement of Financial Accounting Standards (“SFAS”) No. 123, Accounting for Stock-Based Compensation, employs fair value-based measurement and generally results in the recognition of compensation expense for all stock-based awards to employees. SFAS No. 123 does not require an entity to adopt these provisions, but rather, permits continued application of APB Opinion No. 25. The Company has elected to continue accounting for its stock-based employee compensation plan under APB Opinion No. 25 and related interpretations. Since the exercise price of the Company’s employee stock options equals the market price of the underlying stock on the date of the grant, the Company records no compensation expense for its stock option awards. The Company recorded pretax compensation expense of $0.3

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million for the three months and nine months ended July 31, 2004 for restricted stock grants. There were no restricted stock grants awarded during the same periods in fiscal 2003.

The compensation expense recorded for restricted stock awards under the intrinsic value method is consistent with the expense that would be recorded under the fair value-based method. The following schedule reflects the pro forma impact on net income and earnings per common share of accounting for the Company’s stock option grants using the fair value method, which would result in the recognition of compensation expense over the vesting period for the fair value of stock option grants as computed using the Black-Scholes option-pricing model (in thousands, except per share amounts).

NOTE 5 — NET INCOME PER SHARE

Basic earnings per common share is computed by dividing net income by the weighted average number of common shares outstanding. Diluted earnings per common share considers the effect of common stock equivalents. The computations are as follows:

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NOTE 6 — RECENT ACCOUNTING PRONOUNCEMENTS

In January 2003, the Financial Accounting Standards Board (“FASB”) issued Financial Interpretation (“FIN”) No. 46, Consolidation of Variable Interest Entities. FIN No. 46 requires variable interest entities (“VIEs”) to be consolidated by their primary beneficiaries. A primary beneficiary is the party that absorbs a majority of the entity’s expected losses or receives a majority of the entity’s expected residual returns, or both, as a result of ownership, contractual or other financial interests in the entity. In December 2003, the FASB revised FIN No. 46 to provide companies with clarification of key terms, additional exemptions for application and an extended initial application period. FIN No. 46 is currently effective for all variable interest entities. The Company adopted FIN No. 46 as of March 31, 2004, and the adoption did not have a significant impact on the Company’s financial position or results of operations.

NOTE 7 — INCOME TAXES

The consolidated provision for income taxes for the three months and nine months ended July 31, 2004 increased 50%, to $6.7 million and 86%, to $16.0 million, respectively. These increases were primarily due to increases in income before taxes and an increase in the effective tax rate due to a non-recurring provision to provide a valuation allowance related to the Company’s Mexico operating losses. Current and future expected economic conditions do not warrant the continued recognition of a U.S. tax benefit on operations in Mexico.

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NOTE 8 — CONTINGENCIES

The Company’s primary steel suppliers during fiscal 2002 and fiscal 2003, Bethlehem Steel Corporation and National Steel Corporation, filed for protection under Federal bankruptcy laws on October 15, 2001, and March 6, 2002, respectively. During the third quarter of fiscal 2003, U.S. Steel bought substantially all of the integrated steel-making assets of National Steel, and International Steel Group, Inc. acquired the assets of Bethlehem Steel. During the first nine months of fiscal 2004, the Company purchased approximately 58% of its steel requirements from U.S. Steel and International Steel Group, Inc. The Company does not normally maintain an inventory of steel in excess of its current production requirements; however, during the first nine months of fiscal 2004, the Company made some purchases in advance of announced steel price increases. Should either of these companies cease operations, essential supply of primary raw materials could be temporarily interrupted.

As a result of the Company’s restatement of its financial results for the last half of fiscal 1999, all of fiscal 2000 and the first quarter of fiscal 2001, several class action lawsuits were filed against the Company and certain of its current officers in the United States District Court for the Southern District of Texas, commencing in April 2001. The lawsuits were consolidated into one class action lawsuit on August 16, 2001, and the plaintiffs filed a consolidated amended complaint on February 1, 2002. In the consolidated complaint the plaintiffs allege, among other things, that during the financial periods that were restated, the Company made materially false and misleading statements about the status and effectiveness of a management information and accounting system used by the Company’s components division and costs associated with that system, failed to assure the system maintained books and records accurately reflecting inventory levels and costs of goods sold, failed to maintain internal controls on manual accounting entries made to certain inventory-related accounts in an effort to correct the data in the system, otherwise engaged in improper accounting practices that overstated earnings, and issued materially false and misleading financial statements. The plaintiffs further allege the individual defendants traded in the Company’s common stock while in possession of material, non-public information regarding the foregoing. The plaintiffs in the consolidated complaint assert various claims under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, and seek unspecified amounts of compensatory damages, interest and costs, including legal fees. On March 15, 2002, the Company filed a motion to dismiss plaintiffs’ consolidated complaint and a memorandum in support. The Company and the individual defendants deny the material allegations in the complaint. In January 2004, the Company entered into an agreement to settle the lawsuits, without admitting to any of the allegations against the Company or its officers, and agreed to pay $7.0 million for the dismissal of all claims, which is within the Company’s insurance coverage limits and has been agreed to by the Company’s insurance carriers. The settlement was approved by the court on June 10, 2004.

In late 2003 and early 2004, a number of lawsuits were filed against several of the Company’s operating subsidiaries by Bethlehem Steel Corporation and National Steel Corporation in their respective bankruptcy proceedings, seeking reimbursement of preferential transfers allegedly made by the respective debtors in the 90 day period preceding their bankruptcy filings. Bethlehem alleges it made preferential payments to the Company’s subsidiaries of approximately $7.7 million, while National claims preferential payments in the aggregate amount of $6.3 million. The Company denies the material allegations in the lawsuits and is vigorously defending against these claims. While the Company is not able to predict whether it will incur any liability or to accurately estimate the damages, or the range of damages, if any, the Company might incur in connection with these proceedings, the Company believes these legal proceedings will not have a material adverse effect on its business, consolidated financial condition or results of operations.

The Company has discovered the existence of polychlorinated biphenyls and certain other heavy metals at one of its facilities. Soil borings have been sampled and analyzed to determine the impact on the soil at the site and the findings indicate that remediation of the site will likely be necessary, although it appears that the contaminated area does not extend beyond the boundary of the real property boundary line. The Company has filed an application with the Texas Commission of Environmental Quality for entry into its Voluntary Cleanup Program. Based upon an analysis of projected remediation costs of the known contamination, the Company estimates it will spend approximately $1.5 million to remediate this site, which includes future environmental consulting fees, oversight expenses and additional testing expenses, although the Company can give no assurance that actual costs will not significantly exceed its estimate. The Company has made an accrual in the amount of $1.5 million to cover the estimated anticipated costs of remediation of these environmental issues. The Company does not believe the remediation of the site will have a material adverse effect on its business, consolidated financial condition or results of operations. Findings of polychlorinated biphenyls and certain other heavy metals at the site

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are not consistent with the Company’s historical or ongoing operations conducted at the site. Thus, it appears any contamination was likely produced by and/or brought onto the site by previous property owners/users or by a third party. The Company has an indemnity obligation from the immediate prior owner of the property with respect to environmental issues. The Company intends to identify previous property owners/users who might be culpable for the contamination and determine whether it is practical to seek contribution and indemnification for remediation costs. As with any dispute involving technical issues of expertise, however, these efforts could be very costly and time consuming. It is possible, therefore, that efforts to pursue previous property owners/users and/or potentially responsible parties may not be cost effective for the Company.

On September 8, 2004, the Company filed suit in the 280th Judicial District Court of Harris County, Texas against Johnie Schulte, its former President and CEO, because it believes he is violating covenants he has with the Company prohibiting him from using or divulging its confidential information, soliciting its employees to leave the Company’s employment, and competing with the Company. In its complaint, NCI asked the court to rule that the covenants made by Mr. Schulte are enforceable and to enjoin Mr. Schulte from further violations. Prior to filing the lawsuit, the Company conducted an investigation in an effort to determine whether Mr. Schulte was in violation of the restrictive covenants. NCI also asked the court to declare that it could terminate a stream of payments totaling over $3.6 million over a period of ten years to Mr. Schulte because he has violated these covenants.

From time to time, the Company is involved in various other legal proceedings and contingencies considered to be in the ordinary course of business. While the Company is not able to predict whether it will incur any liability in excess of insurance coverages or to accurately estimate the damages, or the range of damages, if any, the Company might incur in connection with these legal proceedings, the Company believes these legal proceedings will not have a material adverse effect on its business, consolidated financial condition or results of operations.

NOTE 9 — SUBSEQUENT EVENT

On August 18, 2004, the Company announced it signed a definitive agreement to purchase substantially all of the operating assets of Heritage Building Systems, Inc. and Steelbuilding.com, Inc., affiliated companies headquartered in North Little Rock, Arkansas. The purchase price for the two companies totals approximately $30 million, including $6 million in NCI common stock. The transaction, subject to completion of due diligence and normal closing conditions, is expected to be completed during the first quarter of the Company’s fiscal 2005.

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NCI BUILDING SYSTEMS, INC.

Item 2.   Management’s Discussion and Analysis of Financial Condition and Results of Operations.

     This Quarterly Report contains forward-looking statements concerning the business and operations of NCI Building Systems, Inc. and its subsidiaries (the “Company”). Although the Company believes the expectations reflected in these forward-looking statements are reasonable, these expectations and the related statements are subject to risks, uncertainties and other factors that could cause the actual results to differ materially from those projected. These risks, uncertainties and other factors include, but are not limited to, industry cyclicality and seasonality, adverse weather conditions, fluctuations in customer demand and other patterns, raw material pricing, competitive activity and pricing pressure, the ability to make strategic acquisitions accretive to earnings and general economic conditions affecting the construction industry, as well as other risks detailed in the Company’s filings with the Securities and Exchange Commission, including its most recent annual and quarterly reports on Forms 10-K and 10-Q. The Company undertakes no obligation to revise any forward-looking statements in order to reflect events or circumstances that may subsequently arise.

Results of Operations

The Company has divided its operations into three reportable segments based upon similarities in product lines, manufacturing processes, marketing and management of its businesses: metal building components, engineered building systems and metal coil coaters. Products of all three segments are similar in basic raw materials used. The metal building components segment products include roof and wall panels, doors, metal partitions, metal trim and other related accessories. The engineered building systems segment includes the manufacturing of structural framing and value added engineering and drafting, which are typically not part of metal building components or metal coil coating products or services. The metal coil coating segment consists of cleaning, treating, painting and slitting continuous steel coils before the steel is fabricated for use by various industrial users. The reporting segments follow the same accounting policies used for the Company’s consolidated financial statements. Management evaluates a segment’s performance based primarily upon operating income before corporate expenses. Intersegment sales are recorded based on weighted average costs