diff --git a/esphome/components/esphome/ota/ota_esphome.cpp b/esphome/components/esphome/ota/ota_esphome.cpp
index af2a609642..1999b88ef4 100644
--- a/esphome/components/esphome/ota/ota_esphome.cpp
+++ b/esphome/components/esphome/ota/ota_esphome.cpp
@@ -78,7 +78,9 @@ void ESPHomeOTAComponent::setup() {
   // every RCVPLUS across all monitored sockets (API client data, mDNS, etc.) would
   // pay the inline hook's two volatile stores + memw barriers to mark OTA
   // pending-enable, even though OTA would just re-disable itself on the next tick.
-  esphome_fast_select_set_ota_listener_sock(this->server_->get_cached_sock());
+  // Uses the existing public esphome_lwip_get_sock() lookup instead of adding a
+  // dedicated accessor on Socket — the lookup happens once at setup, not per event.
+  esphome_fast_select_set_ota_listener_sock(esphome_lwip_get_sock(this->server_->get_fd()));
 #endif
 }
 
diff --git a/esphome/components/socket/bsd_sockets_impl.h b/esphome/components/socket/bsd_sockets_impl.h
index ceb7556d9f..e520784702 100644
--- a/esphome/components/socket/bsd_sockets_impl.h
+++ b/esphome/components/socket/bsd_sockets_impl.h
@@ -118,15 +118,6 @@ class BSDSocketImpl {
 
   int get_fd() const { return this->fd_; }
 
-#ifdef USE_LWIP_FAST_SELECT
-  // Cached lwip_sock pointer captured at construction. Used by OTA to register its
-  // listener netconn with the fast-select wake hook filter so the hook only fires on
-  // OTA-relevant events. Returns nullptr for non-monitored sockets.
-  struct lwip_sock *get_cached_sock() const {
-    return this->cached_sock_;
-  }
-#endif
-
  protected:
   int fd_{-1};
 #ifdef USE_LWIP_FAST_SELECT
diff --git a/esphome/components/socket/lwip_sockets_impl.h b/esphome/components/socket/lwip_sockets_impl.h
index cda37b5dc6..942d0ccf85 100644
--- a/esphome/components/socket/lwip_sockets_impl.h
+++ b/esphome/components/socket/lwip_sockets_impl.h
@@ -84,13 +84,6 @@ class LwIPSocketImpl {
 
   int get_fd() const { return this->fd_; }
 
-#ifdef USE_LWIP_FAST_SELECT
-  // See BSDSocketImpl::get_cached_sock() — same purpose, same semantics.
-  struct lwip_sock *get_cached_sock() const {
-    return this->cached_sock_;
-  }
-#endif
-
  protected:
   int fd_{-1};
 #ifdef USE_LWIP_FAST_SELECT