O'NEILL BUILDING SERVICES LTD Company number 07635268 · Monitor this company Active Overview People 2 Financial Control Documents Analysis Location Related Registered office Address32a Harewood Avenue, Northolt, Middlesex, England, UB5 5DE PostcodeUB5 5DE Companies at this postcode 26 Average house price in UB5 5DE £548,000 (28 sales) Map