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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

FORM 10-Q

x                Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended July 4, 2010

or

o                   Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from              to               

Commission file number 001-11499

WATTS WATER TECHNOLOGIES, INC.

(Exact Name of Registrant as Specified in Its Charter)

Registrant’s Telephone Number, Including Area Code: (978) 688-1811

(Former Name, Former Address and Former Fiscal year, if changed since last report.)

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 period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes x  No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes x No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o  No x

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

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WATTS WATER TECHNOLOGIES, INC. AND SUBSIDIARIES

INDEX

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PART I. FINANCIAL INFORMATION

ITEM 1. Financial Statements

WATTS WATER TECHNOLOGIES, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Amounts in millions, except share information)

(Unaudited)

See accompanying notes to consolidated financial statements.

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WATTS WATER TECHNOLOGIES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

(Amounts in millions, except per share information)

(Unaudited)

See accompanying notes to consolidated financial statements.

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WATTS WATER TECHNOLOGIES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

(Amounts in millions, except per share information)

(Unaudited)

See accompanying notes to consolidated financial statements.

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WATTS WATER TECHNOLOGIES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Amounts in millions)

(Unaudited)

See accompanying notes to consolidated financial statements.

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WATTS WATER TECHNOLOGIES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

1. Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States 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 accounting principles generally accepted in the United States for complete financial statements.  In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included in the Watts Water Technologies, Inc. (the Company) Consolidated Balance Sheet as of July 4, 2010, the Consolidated Statements of Operations for the second quarter and six months ended July 4, 2010 and for the second quarter and six months ended June 28, 2009, and the Consolidated Statements of Cash Flows for the six months ended July 4, 2010 and the six months ended June 28, 2009.

The balance sheet at December 31, 2009 has been derived from the audited consolidated financial statements at that date. The accounting policies followed by the Company are described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2009. The financial statements included in this report should be read in conjunction with the consolidated financial statements and notes included in the Annual Report on Form 10-K for the year ended December 31, 2009. Operating results for the interim periods presented are not necessarily indicative of the results to be expected for the year ending December 31, 2010.

The Company operates on a 52-week fiscal year ending on December 31st.  Any quarterly data contained in this Quarterly Report on Form 10-Q generally reflects the results of operations for a 13-week period. There were four additional working days in the six months ended July 4, 2010 than there were in the six months ended June 28, 2009.

Certain amounts in the year December 31, 2009 have been reclassified to permit comparison with the 2010 presentation. These reclassifications had no effect on reported results of operations or stockholders’ equity.

2. Accounting Policies

Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Impairment of Goodwill and Long-Lived Assets

The changes in the carrying amount of goodwill by geographic segment are as follows:

Goodwill and intangible assets not subject to amortization are tested for impairment at least annually or more frequently if events or circumstances indicate that it is “more likely than not” that goodwill might be impaired, such as a change in business conditions. The Company performs its annual goodwill and intangible assets not subject to amortization impairment assessment in the fourth quarter of each year.

Intangible assets with estimable lives and other long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. Recoverability of intangible assets with estimable lives and other long-lived assets are measured by a comparison of the carrying amount of an asset or asset group to future net undiscounted pretax cash flows expected to be generated by the asset or asset group. If these comparisons indicate that an asset is not recoverable, the impairment loss recognized is the amount by which the carrying amount of the asset or asset group exceeds the related estimated fair value. Estimated fair value is based on either discounted future pretax operating cash flows or appraised values, depending on the nature of the asset. The Company determines the discount rate for this analysis based on the

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weighted average cost of capital based on the market and guideline public companies market for the related business and does not allocate interest charges to the asset or asset group being measured. Judgment is required to estimate future operating cash flows.

Intangible assets include the following:

Aggregate amortization expense for amortized intangible assets for the second quarters of 2010 and 2009 was $3.2 million and $3.1 million, respectively, and for the first six-month periods of 2010 and 2009 was $6.6 and $6.3 million, respectively. Additionally, future amortization expense for the next five years on amortizable intangible assets approximates $7.7 million for the remainder of 2010, $14.3 million for 2011, $12.6 million for 2012, $11.6 million for 2013 and $11.4 million for 2014. Amortization expense is provided on a straight-line basis over the estimated useful lives of the intangible assets. The weighted-average remaining life of total amortizable intangible assets is 10.0 years. Patents, customer relationships, technology and other amortizable intangibles have weighted-average remaining lives of 8.3 years, 7.9 years, 13.8 years and 34.7 years, respectively. Intangible assets not subject to amortization are comprised of trademarks.

Stock-Based Compensation

The Company maintains three stock incentive plans under which key employees and non-employee members of the Company’s Board of Directors have been granted incentive stock options (ISOs) and nonqualified stock options (NSOs) to purchase the Company’s Class A Common Stock. Only one plan, the 2004 Stock Incentive Plan, is currently available for the grant of new equity awards. Stock options granted under prior plans became exercisable over a five-year period at the rate of 20% per year and expire ten years after the date of grant. Under the 2004 Stock Incentive Plan, options become exercisable over a four-year period at the rate of 25% per year and expire ten years after the grant date. ISOs and NSOs granted under the plans may have exercise prices of not less than 100% and 50% of the fair market value of the Class A Common Stock on the date of grant, respectively. The Company’s current practice is to grant all options at fair market value on the grant date.  The Company did not issue any options in the first six months of 2010 or 2009.

The Company had also granted shares of restricted stock to key employees and non-employee members of the Company’s Board of Directors under the 2004 Stock Incentive Plan, which vest either immediately or over a three-year period at the rate of one-third per year. The restricted stock awards are amortized to expense on a straight-line basis over the vesting period. The Company did not issue any restricted stock in the first six months of 2010 and issued 1,706 shares of restricted stock under the 2004 Stock Incentive Plan in the first six months of 2009.

The Company also has a Management Stock Purchase Plan that allows for the granting of restricted stock units (RSUs) to key employees.  On an annual basis, key employees may elect to receive a portion of their annual incentive compensation in RSUs instead of cash.  Each RSU provides the key employee with the right to purchase a share of Class A Common Stock at 67% of the fair market value on the date of grant.  RSUs vest annually over a three-year period from the grant date.  An aggregate of 2,000,000 shares of Class A Common Stock may be issued under the Management Stock Purchase Plan.  The Company granted 158,473 RSUs and 150,098 RSUs in the first six months of 2010 and 2009, respectively.

The fair value of each RSU issued under the Management Stock Purchase Plan is estimated on the date of grant, using the Black-Scholes-Merton Model, based on the following weighted average assumptions:

The above assumptions were used to determine the weighted average grant-date fair value of RSUs of $12.81 and $8.14 in 2010 and 2009, respectively.

A more detailed description of each of these stock and stock option plans can be found in Note 13 of Notes to Consolidated Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2009.

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Shipping and Handling

The Company’s shipping costs included in selling, general and administrative expenses were $9.2 million and $7.7 million for the second quarters of 2010 and 2009, respectively, and were $17.6 million and $15.1 million for the first six months of 2010 and 2009, respectively.

Research and Development

Research and development costs included in selling, general and administrative expenses were $4.5 million and $4.3 million for the second quarters of 2010 and 2009, respectively, and were $9.7 million and $8.7 million for the first six months of 2010 and 2009, respectively.

Taxes, Other than Income Taxes

Taxes assessed by governmental authorities on sale transactions are recorded on a net basis and excluded from sales in the Company’s consolidated statements of operations.

Income Taxes

Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. During 2010, the Company recorded an income tax benefit of approximately $2.8 million primarily from the release of a valuation allowance on net operating losses in Europe.

New Accounting Standards

In October 2009, the Financial Accounting Standards Board (FASB) issued an accounting standard update to improve disclosures related to fair value measurements.  This update requires new disclosures when significant transfers in and out of the various fair value levels occur.  This update requires a reconciliation for fair value measurements using significant unobservable inputs (level 3) be prepared on a gross basis, separately presenting information about purchases, sales, issuance and settlements.  In addition, this update amends current disclosure requirements for postretirement benefit plan assets.  This update is effective for interim and annual periods beginning after December 15, 2009, except for disclosures regarding level 3 fair value measurements.  Those disclosures are effective for fiscal years beginning after December 15, 2010, and for interim periods within those fiscal years.  Adoption of this standard did not have a material impact on the Company’s consolidated financial statements.

In October 2009, the FASB issued an accounting standard update to address accounting for multiple-deliverable arrangements, specifically addressing how to separate deliverables and how to measure and allocate arrangement consideration to one or more units of accounting.  This update established a hierarchy for determining the selling price of a deliverable.  This standard also expands disclosures relating to an entity’s multiple-deliverable revenue arrangements.  This update is effective prospectively for all arrangements entered into or materially modified in fiscal years beginning after June 15, 2010.   The adoption of this update did not have a material impact on the Company’s consolidated financial statements.

3. Discontinued Operations

In September 2009, the Company’s Board of Directors approved the sale of its investment in Watts Valve (Changsha) Co., Ltd. (CWV).  CWV manufactured large diameter hydraulic-actuated butterfly valves for thermo-power and hydro-power plants, water distribution projects and water works projects in China.  Management determined that CWV’s business no longer fit strategically with the Company.  The Company completed the sale of CWV in January 2010. See Note 10 for further information related to CWV.

During 2009, the Company evaluated the classification of the assets and liabilities of CWV and concluded that the net assets qualified as discontinued operations.  The Company evaluated the fair value (less cost to sell) of the net assets of CWV and recorded a pre-tax loss of approximately $8.5 million in 2009, based on the final agreement with the buyer. The Company concluded that the future cash flows associated with CWV would be completely eliminated from the continuing operations of the Company.  As such, the Company classified CWV’s result of operations and the loss from the disposition as discontinued operations for all periods presented.

In May 2009, the Company liquidated its TEAM Precision Pipework, Ltd. (TEAM) business, located in Ammanford, U.K. TEAM custom designed and manufactured manipulated pipe and hose tubing assemblies and served the heating, ventilation and air conditioning and automotive markets in Western Europe.  Management determined the business no longer fit strategically with the Company and that a sale of TEAM was not feasible.  On May 22, 2009, the Company appointed an administrator for TEAM under the United Kingdom Insolvency Act of 1986.  During the administration process, the administrator had sole control over, and responsibility for, TEAM’s operations, assets and liabilities.   The Company deconsolidated TEAM when the administrator obtained control of TEAM.  The deconsolidation resulted in the recognition of a $18.8 million pre-tax non-cash loss in the second quarter of 2009.  The Company evaluated the operations of TEAM and determined that it would not have a continuing involvement in TEAM’s

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operations and cash flows.  As a result of the loss of control, TEAM’s cash flows and operations were eliminated from the continuing operations of the Company.  As such, the Company classified TEAM’s results of operations and the loss from deconsolidation as discontinued operations for all periods presented.

Discontinued operating expense for 2010 includes an estimated reserve in connection with the Foreign Corrupt Practices Act (FCPA) investigation at CWV (see Note 10), legal costs associated with the FCPA investigation and a loss on sale of CWV. The discontinued operating expense for 2009 is related to the operations of TEAM and CWV and legal costs associated with the now concluded James Jones Litigation.  See Note 15 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2009, for a description of the James Jones Litigation.

Condensed operating statements for discontinued operations are summarized below:

Revenues reported in discontinued operations are as follows:

Revenues reported in discontinued operations are as follows:

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The carrying amounts of major classes of assets and liabilities associated with discontinued operations are as follows:

4. Financial Instruments and Derivatives Instruments

The Company measures certain financial assets and liabilities at fair value on a recurring basis, including short-term investment securities, foreign currency derivatives, deferred compensation plan assets and related liability, and metal derivatives. The fair value of these financial assets and liabilities were determined using the following inputs at July 4, 2010:

(1) Included in short-term investment securities on the Company’s consolidated balance sheet.

(2) Included in other, net on the Company’s consolidated balance sheet.

(3) Included in other noncurrent liabilities on the Company’s consolidated balance sheet.

The table below provides a summary of the changes in fair value of all financial assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the period December 31, 2009 to July 4, 2010.

The Company elected to participate in a settlement offer from UBS, AG (UBS) for all of its outstanding auction rate securities (ARS) investments.  Under the terms of the settlement offer, the Company was issued rights by UBS entitling the holder to require UBS to purchase the underlying ARS at par value during the period from June 30, 2010, through July 2, 2012.   The Company elected to exercise this right and, on July 1, 2010 received $6.3 million from UBS in settlement of all outstanding ARS investments. The Company had previously received $0.2 million from UBS during the first quarter of 2010. The Company recorded income of approximately $0.6 million to other (income) expense in the consolidated statement of operations for its investment in ARS in the first six months of 2009.

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As discussed in Note 12, a contingent liability of $1.9 million was recognized as a preliminary estimate of the acquisition date fair value of the contingent consideration in the Blue Ridge Atlantic Enterprises, Inc. (BRAE) acquisition. This liability was classified as Level III under the fair value hierarchy as it was based on the weighted probability as of the date of the acquisition of an achievement of a performance metric, which was not observable in the market.

Short-term investment securities as of July 4, 2010 consist of certificates of deposit with remaining maturities of greater than three months at the date of purchase, for which the carrying amount is a reasonable estimate of fair value.

Cash equivalents consist of instruments with remaining maturities of three months or less at the date of purchase and consist primarily of money market funds and certificates of deposit, for which the carrying amount is a reasonable estimate of fair value.

The Company uses financial instruments from time to time to enhance its ability to manage risk, including foreign currency and commodity pricing exposures, which exist as part of its ongoing business operations.  The use of derivatives exposes the Company to counterparty credit risk for nonperformance and to market risk related to changes in currency exchange rates and commodity prices. The Company manages its exposure to counterparty credit risk through diversification of counterparties. The Company’s counterparties in derivative transactions are substantial commercial banks with significant experience using such derivative instruments. The impact of market risk on the fair value and cash flows of the Company’s derivative instruments is monitored and the Company restricts the use of derivative financial instruments to hedging activities. The Company does not enter into contracts for trading purposes nor does the Company enter into any contracts for speculative purposes.  The use of derivative instruments is approved by senior management under written guidelines.

The Company has exposure to a number of foreign currency rates, including the Canadian Dollar, the Euro, the Chinese Yuan and the British Pound.  To manage this risk, the Company generally uses a layering methodology whereby at the end of any quarter, the Company has generally entered into forward exchange contracts, which hedge approximately 50% of the projected intercompany purchase transactions for the next twelve months.  The Company uses this strategy for the purchases between Canada and the U.S., for purchases between the Euro zone and the U.S., and for purchases between the Euro zone and the United Kingdom.  The average volume of contracts can vary but generally approximates $9 to $12 million in open contracts at the end of any given quarter.  At July 4, 2010, the Company had contracts for notional amounts aggregating approximately $9.0 million to buy various currencies.  The fair value of the foreign exchange contracts as of July 4, 2010 was immaterial. The Company accounts for the forward exchange contracts as an economic hedge and has not elected to use hedge accounting.  Realized and unrealized gains and losses on the contracts are recognized in other (income) expense in the consolidated statement of operations.  During the second quarters ended July 4, 2010 and June 28, 2009, the Company recorded unrealized gains of $0.7 million and unrealized losses of $1.2 million, respectively and during the six months ended July 4, 2010 and June 28, 2009, the Company recorded unrealized gains of $0.9 million and unrealized losses of $0.8 million, respectively, on foreign currency derivatives contracts. These contracts do not subject the Company to significant market risk from exchange movement because they offset gains and losses on the related foreign currency denominated transactions.

Fair Value

The carrying amounts of cash and cash equivalents, short-term investments, trade receivables and trade payables approximate fair value because of the short maturity of these financial instruments.

The fair value of the Company’s 5.05% senior notes due 2020, 5.47% senior notes due 2013 and 5.85% senior notes due 2016 is based on a discounted cash flow model using like industrial companies, the Company’s credit metrics, the Company’s size, as well as, current market demand. The fair value of the Company’s variable rate debt approximates its carrying value. The carrying amount and the estimated fair market value of the Company’s long-term debt, including the current portion, are as follows:

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5. Restructuring and Other Charges

The Company’s Board of Directors approves all major restructuring programs that involve the discontinuance of product lines or the shut down of facilities.  From time to time, the Company takes additional restructuring actions including involuntary terminations that are not part of a major program.  The Company accounts for these costs in the period that the individual employees are notified or the liability is incurred.  These costs are included in restructuring and other charges in the Company’s consolidated statements of operations.  The Company also includes as part of other charges, expenses associated with asset impairments.  See Note 4 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2009, for a detailed description of the 2009 and 2010 actions. A summary of the pre- tax cost by restructuring program is as follows:

The Company recorded net pre-tax restructuring and other charges in its business segments as follows:

The second quarter charge for 2010 of $3.1 million consists of approximately $1.3 million related to involuntary termination benefits, $0.6 million for accelerated depreciation for manufacturing operations, which was charged to cost of sales, and $0.8 million for other costs associated with the 2010 actions.  Additionally, the Company recorded $0.2 million related to involuntary termination benefits and $0.1 million for relocation expenses associated with the 2009 actions.  The remaining costs of approximately $0.1 million related to involuntary termination benefits which were not part of a previously announced restructuring plan.

The first six months charges for 2010 of  $6.9 million consist of approximately $3.3 million related to involuntary termination benefits, $1.3 million for accelerated depreciation for manufacturing operations, which was charged to cost of sales, and $1.0 million for other costs all associated with the 2010 actions.  Additionally, the Company recorded $0.5 million related to involuntary termination benefits and $0.6 million for relocation expenses associated with the 2009 actions.  The remaining costs of approximately $0.2 million related to involuntary termination benefits which were not part of a previously announced restructuring plan. Additionally, the Company recorded $0.2 million and $0.3 million in the first six months of 2010 and 2009, respectively, for charges associated with asset impairments.

In March 2010, in connection the Company’s manufacturing footprint consolidation, the Company closed the operations of Tianjin Watts Valve Company LTD. (TWVC) and relocated its manufacturing to other facilities. On April 12, 2010, the Company signed a definitive equity transfer agreement with a third party to sell its equity ownership and remaining assets of TWVC. The sale is expected to be finalized before the end of 2010, subject to receiving all applicable government approvals. The Company expects to receive net proceeds of $5.9 million from the sale. The Company recorded a tax charge of approximately $1.5 million in the first quarter of 2010 in connection with the expected sale of TWVC.

The following table summarizes the total estimated pre-tax charges expected, incurred and remaining cost for the footprint consolidation-restructuring program initiated in 2009 by the Company’s reportable segments: