Certainfil Cavity Insulation Limited is a second-generation family business specialising in installation of Bonded Bead Cavity Wall and Fibreglass quilting loft insulation in Northern Ireland. Our experienced surveyors provide no-obligation quotes, and our KIWA certified installers ensure a 25-year Qualitymark Protection guarantee for cavity wall installations and Building Control requirements for loft installations. By properly insulating your home, you can save up to 40% on fuel bills, reduce the risk of black mould growth, and benefit the environment. Our services include cavity wall insulation, loft insulation, partial fill cavity wall insulation, and insulation extraction.
The majority of customers were highly satisfied with the company's professionalism, tidiness, and excellent service.
Negative experiences with customer service, delay in communication, and poor follow-up after inquiry.