we had wanted bi fold doors for sometime but couldn’t initially find the right company. Kettell Windows reviews were excellent so we visited the showroom and were very impressed with the product and salesman. Their quote wasn’t the cheapest and there was a long wait to have them fitted but it was worth it the the doors and fitters were excellent. We also had two blown fan lights replaced in our conservatory and a replacement window for the garage. Everything has been completed to our satisfaction and we recommend them to anyone.