Patio Door Not Locking
During the recent cold spell, diid you have trouble locking your upvc door? Surprising to a lot of people is that they are affected by the temperature. They do contract in the cooler temperature and the opposite as it warms.
What can also happen is as the days lengthen and the sun rises, the low March sun that hits South facing doors at 12.00 can also cause them to expand as the sun hits the doors directly.
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