Richard Westenberg
Vice President, Chief Financial Officer and Treasurer at Masco
Thank you, Keith, and good morning, everyone. Thank you for joining. As Robin mentioned, my comments today will focus on adjusted performance excluding the impact of rationalization charges and other onetime items.
Turning to slide seven. Sales in the quarter decreased 2% year-over-year or 1% excluding the unfavorable impact of currency. Our acquisition of Sauna360 in the third quarter of last year added 1% of growth to our second quarter results. In local currency, North American sales decreased 1% or 2% excluding acquisitions. In local currency, international sales decreased 1%.
Despite modestly lower sales level, our initiatives to drive operational efficiencies and our favorable price/cost performance in the quarter contributed to significant gross margin expansion of 140 basis points to 37.6%. SG&A as a percent of sales was 18.5% and was impacted by higher employee related costs. Overall, our operating profit was $399 million in the quarter, down slightly year-over-year, driven by lower sales. However, our margin remained strong at 19.1%. Our strong margin performance was primarily driven by cost savings initiatives and a favorable price/cost relationship. We also grew EPS during the quarter by 1% to $1.20 per share.
Turning to slide eight. Plumbing sales increased 2% in the quarter or 3% excluding the unfavorable impact of currency. Volume in our Plumbing segment was flat year-over-year for the first time since the second quarter of 2022, demonstrating encouraging signs of stabilization. Pricing actions increased sales by 2% and acquisitions contributed another 2% to growth year-over-year. This was partially offset by unfavorable mix and currency, which reduced sales by 1% each. North American Plumbing sales increased 5%, including 3% related to acquisitions.
Delta Faucet delivered another quarter of low single-digit sales growth and our Watkins Wellness spa business returned to year-over-year sales growth before factoring in the benefit of the Sauna360 acquisition. In local currency, International Plumbing sales decreased 1%, driven by unfavorable mix, partially offset by pricing actions and favorable volume as we continue to see signs of stabilization in our key markets of Europe and China. Segment operating profit in the second quarter was up $4 million or 2% year-over-year, and operating margin was 19.9%, in line with the prior year. This operating profit performance was driven primarily by cost savings initiatives and a favorable price/cost relationship, partially offset by unfavorable mix and higher employee-related costs.
Turning to slide nine. Decorative Architectural sales decreased 7% for the second quarter. In the quarter, total paint sales decreased high single digits due to lower volume and price. PRO paint sales were up mid-single digits and DIY paint sales decreased low-double digits. A portion of this DIY decrease was driven by timing of sales across the first half of the year.
For the first half of the year overall, we saw total paint sales decrease mid-single digits with PRO paint sales up low-single digits and DIY paint sales down high-single digits. As we continue to experience overall softness in the DIY market, we now anticipate our full year DIY paint business to be down mid-single digits versus our previous expectation of down low-single digits. In our PRO paint business, we continue to expect sales to increase low single-digits. Operating profit was $174 million, down slightly year-over-year. However, operating margin was up 80 basis points to 20.8%. Operating profit was impacted by lower volume and an unfavorable price/cost relationship, partially offset by cost savings initiatives and the timing of marketing spend.
Turning to slide 10. Our balance sheet remains strong with gross debt-to-EBITDA at 2 times at quarter end. We ended the quarter with $1.4 billion of liquidity, including cash and availability under our revolving credit facility. Working capital as a percent of sales decreased 50 basis points to 18.4% as we continue to stay disciplined on our working capital levels. During the second quarter, we repurchased 2 million shares for $143 million and paid a dividend of $64 million to shareholders. As we previously guided, we continue to anticipate deploying approximately $600 million during the year towards share repurchases or acquisitions.
Now, let's turn to slide 11 and review our outlook for 2024. For total Masco, our top line for the first half of the year came in largely as expected. While we previously expected sales growth in the second half of the year, we are moderating our view and now anticipate sales to be roughly flat in the second half of the year and for our full year sales to remain within our previously guided range of plus or minus low-single digits.
With our strong first half execution and operating margin performance in our Plumbing segment, we now expect full year operating margin to be approximately 17% to 17.5%, increased from our previous guide of approximately 17%. And while we are seeing increased commodity and ocean freight cost across both of our segments, we expect to continue to deliver operating margin expansion in the second half of the year, with most of this to occur in the fourth quarter.
In our Plumbing segment, we are maintaining our top line expectation of full year 2024 sales to be plus or minus low-single digits versus the prior year. Based on strong execution in the first half of this year, we are increasing our expected full year operating margin to approximately 19%, up from our previous guide of approximately 18.5%. In our Decorative Architectural segment, we are lowering our 2024 sales expectation to be down low-single digits year-over-year versus our previous guidance of plus or minus low-single digits. This change is primarily due to continued softness in the DIY paint market. Despite lower expected sales, we are we are maintaining our anticipated full year operating margin of approximately 18%. This would be up from our prior year margin of 17.8% and primarily driven by cost savings initiatives.
Finally, as Keith mentioned earlier, we are narrowing our 2024 EPS estimate to be in the range of $4.05 to $4.20 per share. This assumes a 220 million average diluted share count for the year and a 24.5% effective tax rate. Additional financial assumptions for 2024 can be found on slide 14 of our earnings deck.
With that, I would like to open up the call for questions. Operator?