8 year old Mountain Fire Andromeda looking very bad....see attached photo. They are on the east side of our house in a bed that is much sunnier this past year due to removal of a tree that shaded the area. Silt test last year showed out of balance nutrients which we corrected per instructions on the test results
Andromedas do not like a lot of sun. We were surprised that they did not have lace bugs, which usually move onto any unhappy andromedas. You may want to search for lace bugs on our website so you'll recognize them if they show up.
The yellowing leaves you see have chlorosis. This can be caused by a too-high pH. You can check your soil test for the pH. Being planted near a foundation can be part of the problem. Here is our website info on chlorosis in the Azalea and Rhododendron (similar broad-leaved evergreens) publication: https://extension.umd.edu/sites/default/files/_images/programs/hgic/Publications/HG51_IPM_Azaleas_an...
You may have to move these unhappy andromedas now that their environment changed with the tree removal.