diff --git a/esphome/components/seeed_mr24hpc1/seeed_mr24hpc1.cpp b/esphome/components/seeed_mr24hpc1/seeed_mr24hpc1.cpp
index b567e02524..3f2103b401 100644
--- a/esphome/components/seeed_mr24hpc1/seeed_mr24hpc1.cpp
+++ b/esphome/components/seeed_mr24hpc1/seeed_mr24hpc1.cpp
@@ -106,22 +106,18 @@ void MR24HPC1Component::update_() {
 
 // main loop
 void MR24HPC1Component::loop() {
-  // Early return avoids stack adjustment for the batch buffer below.
-  // loop() runs ~7000/min so most calls have nothing to read.
+  // Read all available bytes in batches to reduce UART call overhead.
   int avail = this->available();
-  if (avail > 0) {
-    // Read all available bytes in batches to reduce UART call overhead.
-    uint8_t buf[64];
-    while (avail > 0) {
-      size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
-      if (!this->read_array(buf, to_read)) {
-        break;
-      }
-      avail -= to_read;
+  uint8_t buf[64];
+  while (avail > 0) {
+    size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
+    if (!this->read_array(buf, to_read)) {
+      break;
+    }
+    avail -= to_read;
 
-      for (size_t i = 0; i < to_read; i++) {
-        this->r24_split_data_frame_(buf[i]);  // split data frame
-      }
+    for (size_t i = 0; i < to_read; i++) {
+      this->r24_split_data_frame_(buf[i]);  // split data frame
     }
   }
 
diff --git a/esphome/components/seeed_mr60bha2/seeed_mr60bha2.cpp b/esphome/components/seeed_mr60bha2/seeed_mr60bha2.cpp
index 51e798f727..d95e13241d 100644
--- a/esphome/components/seeed_mr60bha2/seeed_mr60bha2.cpp
+++ b/esphome/components/seeed_mr60bha2/seeed_mr60bha2.cpp
@@ -30,14 +30,8 @@ void MR60BHA2Component::dump_config() {
 
 // main loop
 void MR60BHA2Component::loop() {
-  // Early return avoids stack adjustment for the batch buffer below.
-  // loop() runs ~7000/min so most calls have nothing to read.
-  int avail = this->available();
-  if (avail <= 0) {
-    return;
-  }
-
   // Read all available bytes in batches to reduce UART call overhead.
+  int avail = this->available();
   uint8_t buf[64];
   while (avail > 0) {
     size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
diff --git a/esphome/components/seeed_mr60fda2/seeed_mr60fda2.cpp b/esphome/components/seeed_mr60fda2/seeed_mr60fda2.cpp
index 919185c0e3..441ee2b5c2 100644
--- a/esphome/components/seeed_mr60fda2/seeed_mr60fda2.cpp
+++ b/esphome/components/seeed_mr60fda2/seeed_mr60fda2.cpp
@@ -49,14 +49,8 @@ void MR60FDA2Component::setup() {
 
 // main loop
 void MR60FDA2Component::loop() {
-  // Early return avoids stack adjustment for the batch buffer below.
-  // loop() runs ~7000/min so most calls have nothing to read.
-  int avail = this->available();
-  if (avail <= 0) {
-    return;
-  }
-
   // Read all available bytes in batches to reduce UART call overhead.
+  int avail = this->available();
   uint8_t buf[64];
   while (avail > 0) {
     size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));