Bought a used sliding patio door. Installer removed meeting rail because screen was catching on it. It was fine in home where I purchased it. Installer did not install properly. Removed meeting rail, tried cutting piece off, ruined it and had plain rail made to put on door end. Problem is the wide gap where doors meet allowing wind, rain, and I suppose soon mosquitoes, flies and even bats in. Any helpful suggestions short of having it removed and replaced?