RFM Construction. Builders, Home extensions, Basement conversions, Underpinning, Structural Building repairs, building maintenance and more. Serving customers in Harrogate, Boston Spa, Wakefield, Shipley, Selby, Hillsborough, Ranmoor, Knaresborough, Wetherby, Sandal, Ackworth, Walton, Newmillerdam, Notton, Woolley and surrounding towns and villages in Yorkshire.