diff --git a/app/Livewire/Windows.php b/app/Livewire/Windows.php
new file mode 100644
index 0000000..c815601
--- /dev/null
+++ b/app/Livewire/Windows.php
@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Livewire;
+
+use App\Models\Entity;
+use Livewire\Attributes\Layout;
+use Livewire\Attributes\On;
+use Livewire\Component;
+
+#[Layout('layouts.app')]
+class Windows extends Component
+{
+    #[On('echo-private:home,.DeviceStateChanged')]
+    public function onDeviceStateChanged(): void {}
+
+    public function render()
+    {
+        $sensors = Entity::query()
+            ->whereIn('type', ['contact', 'motion'])
+            ->with(['device.room', 'device.entities.state', 'state'])
+            ->get()
+            ->sortBy(fn ($e) => ($e->device->room?->name ?? 'zzz').$e->device->name)
+            ->values();
+
+        $open = $sensors->filter(fn ($e) => $e->type === 'contact' && data_get($e->state, 'state.open') === true)->count();
+
+        return view('livewire.windows', [
+            'groups' => $sensors->groupBy(fn ($e) => $e->device->room?->name ?? __('devices.no_room')),
+            'open' => $open,
+            'total' => $sensors->count(),
+        ]);
+    }
+}
diff --git a/lang/de/windows.php b/lang/de/windows.php
new file mode 100644
index 0000000..ae58f17
--- /dev/null
+++ b/lang/de/windows.php
@@ -0,0 +1,9 @@
+<?php
+
+return [
+    'subtitle'     => 'Kontakte an Fenstern und Türen.',
+    'empty'        => 'Keine Kontaktsensoren.',
+    'all_closed'   => 'Alles geschlossen',
+    'open_count'   => '{1}1 offen|[2,*]:count offen',
+    'sensor_count' => '{0}Keine Sensoren|{1}1 Sensor|[2,*]:count Sensoren',
+];
diff --git a/lang/en/windows.php b/lang/en/windows.php
new file mode 100644
index 0000000..1b6110a
--- /dev/null
+++ b/lang/en/windows.php
@@ -0,0 +1,9 @@
+<?php
+
+return [
+    'subtitle'     => 'Contacts on windows and doors.',
+    'empty'        => 'No contact sensors.',
+    'all_closed'   => 'All closed',
+    'open_count'   => '{1}1 open|[2,*]:count open',
+    'sensor_count' => '{0}No sensors|{1}1 sensor|[2,*]:count sensors',
+];
diff --git a/resources/views/components/sidebar.blade.php b/resources/views/components/sidebar.blade.php
index fa6b724..88a37d1 100644
--- a/resources/views/components/sidebar.blade.php
+++ b/resources/views/components/sidebar.blade.php
@@ -9,7 +9,7 @@
             ['key' => 'persons',     'icon' => 'persons',    'route' => null,        'lock' => false],
         ],
         'nav.section_security' => [
-            ['key' => 'windows',     'icon' => 'window',     'route' => null,        'lock' => false],
+            ['key' => 'windows',     'icon' => 'window',     'route' => 'windows',   'lock' => false],
             ['key' => 'access',      'icon' => 'shield',     'route' => null,        'lock' => true],
         ],
         'nav.section_system' => [
diff --git a/resources/views/livewire/windows.blade.php b/resources/views/livewire/windows.blade.php
new file mode 100644
index 0000000..74557e6
--- /dev/null
+++ b/resources/views/livewire/windows.blade.php
@@ -0,0 +1,50 @@
+<div wire:poll.30s>
+    <x-topbar :title="__('nav.windows')" :subtitle="__('windows.subtitle')" />
+
+    <div class="px-5 lg:px-[26px] py-6 flex flex-col gap-5 max-w-[1560px] mx-auto w-full">
+        @if ($total === 0)
+            <x-panel><p class="text-[13px] text-ink-3 text-center py-6">{{ __('windows.empty') }}</p></x-panel>
+        @else
+            {{-- summary --}}
+            <section class="relative overflow-hidden rounded-card border border-line-soft {{ $open > 0 ? 'bg-warning/10' : 'bg-online/10' }}">
+                <span class="absolute inset-y-0 left-0 w-[3px] {{ $open > 0 ? 'bg-warning' : 'bg-online' }}"></span>
+                <div class="flex items-center gap-3.5 p-4 pl-5">
+                    <span class="grid place-items-center w-10 h-10 rounded-lg bg-base/40 {{ $open > 0 ? 'text-warning' : 'text-online' }} shrink-0">
+                        <x-icon :name="$open > 0 ? 'window' : 'check'" :size="20" />
+                    </span>
+                    <div>
+                        <h2 class="text-[15px] font-bold text-ink">
+                            {{ $open > 0 ? trans_choice('windows.open_count', $open, ['count' => $open]) : __('windows.all_closed') }}
+                        </h2>
+                        <p class="text-[12.5px] text-ink-2">{{ trans_choice('windows.sensor_count', $total, ['count' => $total]) }}</p>
+                    </div>
+                </div>
+            </section>
+
+            @foreach ($groups as $roomName => $sensors)
+                <x-panel :title="$roomName">
+                    <div class="flex flex-col divide-y divide-line-soft -my-1">
+                        @foreach ($sensors as $sensor)
+                            @php
+                                $battery = $sensor->device->entities->firstWhere('type', 'battery');
+                                $pct = $battery ? (int) data_get($battery->state, 'state.percent', 0) : null;
+                            @endphp
+                            <div class="flex items-center gap-3 py-3 first:pt-1 last:pb-1">
+                                <span class="grid place-items-center w-8 h-8 rounded-lg bg-inset text-ink-2 shrink-0">
+                                    <x-icon :name="$sensor->type === 'motion' ? 'activity' : 'window'" :size="16" />
+                                </span>
+                                <a href="{{ route('devices.show', $sensor->device) }}" wire:navigate class="text-[13px] font-semibold text-ink hover:text-accent transition-colors truncate">{{ $sensor->device->name }}</a>
+                                <div class="ml-auto flex items-center gap-2 shrink-0">
+                                    @if (! is_null($pct))
+                                        <x-status-pill :state="$pct < 20 ? 'offline' : 'neutral'">{{ __('devices.battery') }} · <span class="font-mono">{{ $pct }}%</span></x-status-pill>
+                                    @endif
+                                    <x-entity-state :entity="$sensor" />
+                                </div>
+                            </div>
+                        @endforeach
+                    </div>
+                </x-panel>
+            @endforeach
+        @endif
+    </div>
+</div>
diff --git a/routes/web.php b/routes/web.php
index 5edb949..51a1e6f 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -7,6 +7,7 @@ use App\Livewire\Devices\Show as DeviceShow;
 use App\Livewire\Host;
 use App\Livewire\Rooms\Index as RoomIndex;
 use App\Livewire\Rooms\Show as RoomShow;
+use App\Livewire\Windows;
 use Illuminate\Support\Facades\Auth;
 use Illuminate\Support\Facades\Route;
 
@@ -22,6 +23,7 @@ Route::middleware('auth')->group(function () {
     Route::get('/rooms/{room}', RoomShow::class)->name('rooms.show');
     Route::get('/devices', DeviceIndex::class)->name('devices.index');
     Route::get('/devices/{device}', DeviceShow::class)->name('devices.show');
+    Route::get('/windows', Windows::class)->name('windows');
     Route::get('/host', Host::class)->name('host');
 
     Route::post('/logout', function () {