We recommend using a mixture of bird proofing for commercial buildings, including gutter guard, spikes and netting. We recommend having the entire property inspected, including roof cavities, gutters and roof cavities, before you commit to a gutter mesh as your primary proofing method.
While a gutter guard is an effective measure against pest infestations in residential buildings, it may not be suitable for all types of pest infestations, including mice and rats, as there are many access points, including wall cavities and foundational gaps.