Work is underway to improve Pembroke Dock's Waterloo Civic Amenity and Recycling Centre.
The scheme, costing just under £1million, will see the site almost double in size and make it safer and easier for people to use.
Among the improvements will be the installation of parking bays near containers for items such as scrap metal, green waste and wood, allowing users to drop their waste into skips instead of climbing steps.
A covered area is being constructed over compactors for general household waste and cardboard, while the installation of separate entrance and exit gates will allow users to negotiate the site in a clockwise direction and recycle waste as they go.
Site users are being warned that during the improvement work, which is due to be completed towards the end of April, there may be no provision for wastes such as motor oil, cooking oil and car batteries.
Meanwhile, containers for glass, paper, cans, cardboard and Tetra Paks will be moved temporarily onto the neighbouring Ledwoods site.
Cabinet spokesperson for environmental and regulatory services, Clr. Ken Rowlands said the improvements would make the site easier for people to use.
"Once completed it will be the most modern and up to date waste facility in the county and proves the authority's commitment to reducing the amount of waste we send to landfill," he said.