Selco Builders Warehouse has opened its 17th branch in London in Marlborough Grove, just off Old Kent Road.
The new trade-only warehouse features a 15,000-product range of building materials, as well as a cafe and and van-size parking spaces.
"It is down to the efforts of all our colleagues that we have been able to open the branch on schedule," said Selco managing director Chris Cunliffe.
"The recent harsh weather has not made it easy, but they took it all in their stride and pulled together to ensure the opening went ahead as planned.
"The opening of Old Kent Road is part of our ongoing strategy to expand our branch network, despite the difficult trading conditions in our sector.
"The fact that we can continue with our ambitious growth plans is a credit to all our colleagues and management team who work tirelessly to ensure we meet our commitment to delivering great value building supplies and unrivalled service to even more customers."
Chris Cunliffe handed over the keys to branch manager Darrell Carter who joined him in praising colleagues for their commitment, dedication and hard work to ensure a successful opening week of trading.
Darrell Carter said: "The opening of the new branch has created more than 50 new jobs and in line with our company's policy we have been able to fill every position with people from the local community.
"This ensures that local and knowledgeable staff are always able to assist customers with their enquiries whilst providing local economic benefit."
Chris Cunliffe added: "Customers at the new branch will benefit from Selco's three guarantees that underpin our entire offering, which are unrivalled availability with the widest range of products in stock, excellent customer service and straight trade pricing."