Home Depot bought SRS Distribution — the subsidiary that’s acquiring GMS — last year for $18.25 billion, in the largest acquisition in its history. Texas-based SRS sells supplies to professionals in the landscaping, roofing and pool businesses and it has bought up many other smaller suppliers as it’s grown.

Home Depot's announcement also concludes a potential bidding war between the big-box retailer and billionaire Brad Jacobs. Jacobs' building-products distributor QXO had offered about $5 billion in cash to acquire GMS and said it would press forward with a hostile takeover if the company's management rejected the proposal.

Home Depot said on Monday unit SRS Distribution has agreed to acquire specialty building products distributor GMS for about $4.3 billion, stepping up its efforts to capture more demand from professional contractors.