diff --git a/esphome/components/wifi/wifi_component.cpp b/esphome/components/wifi/wifi_component.cpp
index 8656df7f4dc..6163571bc9a 100644
--- a/esphome/components/wifi/wifi_component.cpp
+++ b/esphome/components/wifi/wifi_component.cpp
@@ -2229,6 +2229,14 @@ bool WiFiComponent::load_fast_connect_settings_(WiFiAP &params) {
     params.set_hidden(false);
 
     ESP_LOGD(TAG, "Loaded fast_connect settings");
+#if defined(USE_ESP32) && defined(SOC_WIFI_SUPPORT_5G)
+    if ((this->band_mode_ == WIFI_BAND_MODE_5G_ONLY && fast_connect_save.channel < FIRST_5GHZ_CHANNEL) ||
+        (this->band_mode_ == WIFI_BAND_MODE_2G_ONLY && fast_connect_save.channel >= FIRST_5GHZ_CHANNEL)) {
+      ESP_LOGW(TAG, "Saved channel %u not allowed by band mode, ignoring fast_connect", fast_connect_save.channel);
+      this->selected_sta_index_ = -1;
+      return false;
+    }
+#endif
     return true;
   }
 
diff --git a/esphome/components/wifi/wifi_component.h b/esphome/components/wifi/wifi_component.h
index 27a46a8e034..c88fffc5126 100644
--- a/esphome/components/wifi/wifi_component.h
+++ b/esphome/components/wifi/wifi_component.h
@@ -774,6 +774,8 @@ class WiFiComponent : public Component {
   SemaphoreHandle_t high_performance_semaphore_{nullptr};
 #endif
 
+  static constexpr uint8_t FIRST_5GHZ_CHANNEL = 36;
+
   // Post-connect roaming constants
   static constexpr uint32_t ROAMING_CHECK_INTERVAL = 5 * 60 * 1000;  // 5 minutes
   static constexpr int8_t ROAMING_MIN_IMPROVEMENT = 10;              // dB
diff --git a/esphome/components/wifi/wifi_component_esp_idf.cpp b/esphome/components/wifi/wifi_component_esp_idf.cpp
index eca3f192490..0280becc7e4 100644
--- a/esphome/components/wifi/wifi_component_esp_idf.cpp
+++ b/esphome/components/wifi/wifi_component_esp_idf.cpp
@@ -961,6 +961,11 @@ bool WiFiComponent::wifi_scan_start_(bool passive) {
     config.scan_time.active.min = 100;
     config.scan_time.active.max = 300;
   }
+  // When scanning while connected (roaming), return to home channel between
+  // each scanned channel to maintain the connection (helps with BLE/WiFi coexistence)
+  if (this->roaming_state_ == RoamingState::SCANNING) {
+    config.coex_background_scan = true;
+  }
 
   esp_err_t err = esp_wifi_scan_start(&config, false);
   if (err != ESP_OK) {