diff --git a/esphome/core/hal/hal_esp32.h b/esphome/components/esp32/hal.h
similarity index 98%
rename from esphome/core/hal/hal_esp32.h
rename to esphome/components/esp32/hal.h
index d5d7752bf6..2180f07f6c 100644
--- a/esphome/core/hal/hal_esp32.h
+++ b/esphome/components/esp32/hal.h
@@ -15,6 +15,8 @@
 #define PROGMEM
 #endif
 
+namespace esphome::esp32 {}
+
 namespace esphome {
 
 // Forward decl from helpers.h (esphome/core/helpers.h) — kept here so this
diff --git a/esphome/components/esp8266/hal.cpp b/esphome/components/esp8266/hal.cpp
index 56910e5b39..e8f472dc8a 100644
--- a/esphome/components/esp8266/hal.cpp
+++ b/esphome/components/esp8266/hal.cpp
@@ -18,7 +18,7 @@ namespace esphome::esp8266 {}  // namespace esphome::esp8266
 namespace esphome {
 
 // yield(), micros(), millis_64(), delayMicroseconds(), arch_feed_wdt(),
-// progmem_read_*() are inlined in core/hal/hal_esp8266.h.
+// progmem_read_*() are inlined in components/esp8266/hal.h.
 //
 // Fast accumulator replacement for Arduino's millis() (~3.3 μs via 4× 64-bit
 // multiplies on the LX106). Tracks a running ms counter from 32-bit
diff --git a/esphome/core/hal/hal_esp8266.h b/esphome/components/esp8266/hal.h
similarity index 98%
rename from esphome/core/hal/hal_esp8266.h
rename to esphome/components/esp8266/hal.h
index b6e3b1ee3c..effa9c9371 100644
--- a/esphome/core/hal/hal_esp8266.h
+++ b/esphome/components/esp8266/hal.h
@@ -25,6 +25,8 @@ extern "C" unsigned long millis(void);
 // NOLINTNEXTLINE(readability-redundant-declaration)
 extern "C" void system_soft_wdt_feed(void);
 
+namespace esphome::esp8266 {}
+
 namespace esphome {
 
 // Forward decl from helpers.h so this header stays cheap.
diff --git a/esphome/components/host/hal.cpp b/esphome/components/host/hal.cpp
index 256a12ac62..c7fef8d2e8 100644
--- a/esphome/components/host/hal.cpp
+++ b/esphome/components/host/hal.cpp
@@ -15,7 +15,7 @@ namespace esphome::host {}  // namespace esphome::host
 namespace esphome {
 
 // yield(), arch_init(), arch_feed_wdt(), arch_get_cpu_freq_hz() inlined in
-// core/hal/hal_host.h.
+// components/host/hal.h.
 
 uint32_t IRAM_ATTR HOT millis() {
   struct timespec spec;
diff --git a/esphome/core/hal/hal_host.h b/esphome/components/host/hal.h
similarity index 96%
rename from esphome/core/hal/hal_host.h
rename to esphome/components/host/hal.h
index d7f317176e..12abf6684d 100644
--- a/esphome/core/hal/hal_host.h
+++ b/esphome/components/host/hal.h
@@ -8,6 +8,8 @@
 #define IRAM_ATTR
 #define PROGMEM
 
+namespace esphome::host {}
+
 namespace esphome {
 
 /// Returns true when executing inside an interrupt handler.
diff --git a/esphome/components/libretiny/hal.cpp b/esphome/components/libretiny/hal.cpp
index e6dbb7296c..67e902024d 100644
--- a/esphome/components/libretiny/hal.cpp
+++ b/esphome/components/libretiny/hal.cpp
@@ -16,7 +16,7 @@ namespace esphome {
 
 // yield(), delay(), micros(), millis(), millis_64(), delayMicroseconds(),
 // arch_feed_wdt(), arch_get_cpu_cycle_count(), arch_get_cpu_freq_hz()
-// inlined in core/hal/hal_libretiny.h.
+// inlined in components/libretiny/hal.h.
 
 void arch_init() {
   libretiny::setup_preferences();
diff --git a/esphome/core/hal/hal_libretiny.h b/esphome/components/libretiny/hal.h
similarity index 99%
rename from esphome/core/hal/hal_libretiny.h
rename to esphome/components/libretiny/hal.h
index db0fc11bfb..9c512504b7 100644
--- a/esphome/core/hal/hal_libretiny.h
+++ b/esphome/components/libretiny/hal.h
@@ -61,6 +61,8 @@ extern "C" void lt_wdt_feed(void);
 extern "C" uint32_t lt_cpu_get_cycle_count(void);
 extern "C" uint32_t lt_cpu_get_freq(void);
 
+namespace esphome::libretiny {}
+
 namespace esphome {
 
 /// Returns true when executing inside an interrupt handler.
diff --git a/esphome/components/rp2040/hal.cpp b/esphome/components/rp2040/hal.cpp
index 7475205d60..e71d3fd54d 100644
--- a/esphome/components/rp2040/hal.cpp
+++ b/esphome/components/rp2040/hal.cpp
@@ -17,7 +17,7 @@ namespace esphome::rp2040 {}  // namespace esphome::rp2040
 namespace esphome {
 
 // yield(), delay(), micros(), millis(), millis_64(), delayMicroseconds(),
-// arch_feed_wdt(), arch_get_cpu_cycle_count() inlined in core/hal/hal_rp2040.h.
+// arch_feed_wdt(), arch_get_cpu_cycle_count() inlined in components/rp2040/hal.h.
 void arch_restart() {
   watchdog_reboot(0, 0, 10);
   while (1) {
diff --git a/esphome/core/hal/hal_rp2040.h b/esphome/components/rp2040/hal.h
similarity index 98%
rename from esphome/core/hal/hal_rp2040.h
rename to esphome/components/rp2040/hal.h
index 27a9b23c0b..c9c61c921d 100644
--- a/esphome/core/hal/hal_rp2040.h
+++ b/esphome/components/rp2040/hal.h
@@ -25,6 +25,8 @@ extern "C" uint64_t time_us_64(void);
 extern "C" void watchdog_update(void);
 extern "C" unsigned long ulMainGetRunTimeCounterValue(void);
 
+namespace esphome::rp2040 {}
+
 namespace esphome {
 
 // Forward decl from helpers.h.
diff --git a/esphome/components/zephyr/hal.cpp b/esphome/components/zephyr/hal.cpp
index 5c08ed2519..6c405b650e 100644
--- a/esphome/components/zephyr/hal.cpp
+++ b/esphome/components/zephyr/hal.cpp
@@ -20,7 +20,7 @@ static const device *const WDT = DEVICE_DT_GET(DT_ALIAS(watchdog0));
 
 // yield(), delay(), micros(), millis(), millis_64(), delayMicroseconds(),
 // arch_get_cpu_cycle_count(), arch_get_cpu_freq_hz() inlined in
-// core/hal/hal_zephyr.h.
+// components/zephyr/hal.h.
 
 void arch_init() {
 #ifdef CONFIG_WATCHDOG
diff --git a/esphome/core/hal/hal_zephyr.h b/esphome/components/zephyr/hal.h
similarity index 97%
rename from esphome/core/hal/hal_zephyr.h
rename to esphome/components/zephyr/hal.h
index 613b3911c1..11994b68b7 100644
--- a/esphome/core/hal/hal_zephyr.h
+++ b/esphome/components/zephyr/hal.h
@@ -9,6 +9,8 @@
 #define IRAM_ATTR
 #define PROGMEM
 
+namespace esphome::zephyr {}
+
 namespace esphome {
 
 /// Returns true when executing inside an interrupt handler.
diff --git a/esphome/core/hal.h b/esphome/core/hal.h
index a53296979c..4babda807d 100644
--- a/esphome/core/hal.h
+++ b/esphome/core/hal.h
@@ -8,22 +8,22 @@
 
 // Per-platform HAL bits (IRAM_ATTR / PROGMEM macros, in_isr_context(),
 // inline yield/delay/micros/millis/millis_64 wrappers, ESP8266 progmem
-// helpers) live under esphome/core/hal/ and are dispatched here based on
-// the active USE_* platform define. Each header guards its body with the
-// matching #ifdef USE_<platform> and re-enters namespace esphome {} so it
-// is safe to be re-included.
+// helpers) live next to each platform component as components/<platform>/hal.h
+// and are dispatched here based on the active USE_* platform define. Each
+// header guards its body with the matching #ifdef USE_<platform> and re-enters
+// namespace esphome {} so it is safe to be re-included.
 #if defined(USE_ESP32)
-#include "esphome/core/hal/hal_esp32.h"
+#include "esphome/components/esp32/hal.h"
 #elif defined(USE_ESP8266)
-#include "esphome/core/hal/hal_esp8266.h"
+#include "esphome/components/esp8266/hal.h"
 #elif defined(USE_LIBRETINY)
-#include "esphome/core/hal/hal_libretiny.h"
+#include "esphome/components/libretiny/hal.h"
 #elif defined(USE_RP2040)
-#include "esphome/core/hal/hal_rp2040.h"
+#include "esphome/components/rp2040/hal.h"
 #elif defined(USE_HOST)
-#include "esphome/core/hal/hal_host.h"
+#include "esphome/components/host/hal.h"
 #elif defined(USE_ZEPHYR)
-#include "esphome/core/hal/hal_zephyr.h"
+#include "esphome/components/zephyr/hal.h"
 #else
 #error "hal.h: not implemented for this platform"
 #endif
@@ -33,12 +33,12 @@ namespace esphome {
 // Cross-platform declarations. delayMicroseconds(), arch_feed_wdt(),
 // arch_get_cpu_cycle_count(), arch_init(), arch_get_cpu_freq_hz() vary
 // per platform (some inline, some out-of-line) so they live in
-// hal/hal_<platform>.h.
+// components/<platform>/hal.h.
 void __attribute__((noreturn)) arch_restart();
 
 #ifndef USE_ESP8266
 // All non-ESP8266 platforms: PROGMEM is a no-op, so these are direct dereferences.
-// ESP8266's out-of-line declarations live in hal/hal_esp8266.h.
+// ESP8266's out-of-line declarations live in components/esp8266/hal.h.
 inline uint8_t progmem_read_byte(const uint8_t *addr) { return *addr; }
 inline const char *progmem_read_ptr(const char *const *addr) { return *addr; }
 inline uint16_t progmem_read_uint16(const uint16_t *addr) { return *addr; }