Tigh Glas insulated my mid terraced house in the city centre. For the duration of the works, everyday they made sure the work areas were clean, tidy, and liveable. The difference the insulation has made is great, when we switch the heating off, it stays in the house for hours afterwards. They also installed air vents in all rooms which makes the air fresher all the time. Tigh Glas were very obliging, and I would have no hesitation reccommending Oisín and his crew for any future building work