Based in Newtownforbes County Longford Colum & Gregg are specialists in providing Cavity Wall and Attic Insulation solutions. The two areas they cover, i.e. walls and attics account for more than 50% heat loss potential in a typical home. Cavity wall and attic wall insulations are the most cost-effective insulation methods one can avail of. The payback period for these measures is extremely short in comparison with other types of home insulations.