diff --git a/db/migrations/01_initial_schema.sql b/db/migrations/01_initial_schema.sql
index dd95da1..8259525 100644
--- a/db/migrations/01_initial_schema.sql
+++ b/db/migrations/01_initial_schema.sql
@@ -112,17 +112,17 @@ CREATE TABLE IF NOT EXISTS payments (
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
 
 -- Initial data seed
-INSERT INTO companies (name_en, name_ar) VALUES ('Laundry Brand', 'علامة غسيل');
-INSERT INTO branches (company_id, name_en, name_ar) VALUES (1, 'Main Branch', 'الفرع الرئيسي');
-INSERT INTO users (branch_id, company_id, username, password_hash, full_name_en, full_name_ar, role) 
+INSERT IGNORE INTO companies (name_en, name_ar) VALUES ('Laundry Brand', 'علامة غسيل');
+INSERT IGNORE INTO branches (company_id, name_en, name_ar) VALUES (1, 'Main Branch', 'الفرع الرئيسي');
+INSERT IGNORE INTO users (branch_id, company_id, username, password_hash, full_name_en, full_name_ar, role) 
 VALUES (1, 1, 'admin', '$2y$10$92IXUNpkjO0rOQ5byMi.Ye4oKoEa3Ro9llC/.og/at2.uheWG/igi', 'Admin', 'مدير', 'super_admin'); 
 -- password is 'password'
 
-INSERT INTO items (name_en, name_ar) VALUES ('Shirt', 'قميص'), ('Suit', 'بدلة'), ('T-Shirt', 'تيشيرت'), ('Pants', 'بنطال'), ('Dress', 'فستان');
-INSERT INTO services (name_en, name_ar) VALUES ('Wash Only', 'غسيل فقط'), ('Iron Only', 'كوي فقط'), ('Wash & Iron', 'غسيل وكوي'), ('Dry Clean', 'تنظيف جاف');
+INSERT IGNORE INTO items (name_en, name_ar) VALUES ('Shirt', 'قميص'), ('Suit', 'بدلة'), ('T-Shirt', 'تيشيرت'), ('Pants', 'بنطال'), ('Dress', 'فستان');
+INSERT IGNORE INTO services (name_en, name_ar) VALUES ('Wash Only', 'غسيل فقط'), ('Iron Only', 'كوي فقط'), ('Wash & Iron', 'غسيل وكوي'), ('Dry Clean', 'تنظيف جاف');
 
 -- Default prices for Main Branch
-INSERT INTO prices (branch_id, item_id, service_id, price) VALUES 
+INSERT IGNORE INTO prices (branch_id, item_id, service_id, price) VALUES 
 (1, 1, 1, 5.00), (1, 1, 2, 3.00), (1, 1, 3, 7.00),
 (1, 2, 4, 30.00),
 (1, 3, 3, 5.00),
diff --git a/db/migrations/02_update_items.sql b/db/migrations/02_update_items.sql
index 27c9118..617e36e 100644
--- a/db/migrations/02_update_items.sql
+++ b/db/migrations/02_update_items.sql
@@ -30,7 +30,7 @@ ALTER TABLE prices ADD COLUMN variant_id INT AFTER item_id;
 ALTER TABLE prices ADD CONSTRAINT fk_price_variant FOREIGN KEY (variant_id) REFERENCES item_variants(id) ON DELETE CASCADE;
 
 -- Insert default categories
-INSERT INTO categories (name_en, name_ar) VALUES 
+INSERT IGNORE INTO categories (name_en, name_ar) VALUES 
 ('Men', 'رجال'),
 ('Women', 'نساء'),
 ('Kids', 'أطفال'),
diff --git a/db/migrations/12_page_based_permissions.sql b/db/migrations/12_page_based_permissions.sql
index 56c19e5..865e131 100644
--- a/db/migrations/12_page_based_permissions.sql
+++ b/db/migrations/12_page_based_permissions.sql
@@ -12,7 +12,7 @@ CREATE TABLE IF NOT EXISTS user_permissions (
 
 -- Seed existing users with default permissions based on their current roles
 -- For Super Admins: everything
-INSERT INTO user_permissions (user_id, page, can_view, can_add, can_edit, can_delete)
+INSERT IGNORE INTO user_permissions (user_id, page, can_view, can_add, can_edit, can_delete)
 SELECT id, p.page, 1, 1, 1, 1
 FROM users
 CROSS JOIN (
@@ -25,7 +25,7 @@ WHERE role = 'super_admin';
 
 -- For Branch Managers: most things, but not company-wide settings or user management (usually)
 -- Following the existing role logic from header.php
-INSERT INTO user_permissions (user_id, page, can_view, can_add, can_edit, can_delete)
+INSERT IGNORE INTO user_permissions (user_id, page, can_view, can_add, can_edit, can_delete)
 SELECT id, p.page, 1, 1, 1, 1
 FROM users
 CROSS JOIN (
@@ -36,7 +36,7 @@ CROSS JOIN (
 WHERE role = 'branch_manager';
 
 -- For Cashiers:
-INSERT INTO user_permissions (user_id, page, can_view, can_add, can_edit, can_delete)
+INSERT IGNORE INTO user_permissions (user_id, page, can_view, can_add, can_edit, can_delete)
 SELECT id, p.page, 1, 1, 1, 1
 FROM users
 CROSS JOIN (
@@ -46,7 +46,7 @@ CROSS JOIN (
 WHERE role = 'cashier';
 
 -- For Limited Viewers:
-INSERT INTO user_permissions (user_id, page, can_view, can_add, can_edit, can_delete)
+INSERT IGNORE INTO user_permissions (user_id, page, can_view, can_add, can_edit, can_delete)
 SELECT id, p.page, 1, 0, 0, 0
 FROM users
 CROSS JOIN (
diff --git a/db/migrations/13_multiple_user_branches.sql b/db/migrations/13_multiple_user_branches.sql
index f6749e0..0ba388a 100644
--- a/db/migrations/13_multiple_user_branches.sql
+++ b/db/migrations/13_multiple_user_branches.sql
@@ -8,7 +8,7 @@ CREATE TABLE IF NOT EXISTS user_branches (
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
 
 -- Migrate existing data from users table
-INSERT INTO user_branches (user_id, branch_id)
+INSERT IGNORE INTO user_branches (user_id, branch_id)
 SELECT id, branch_id FROM users WHERE branch_id IS NOT NULL;
 
 -- Keep branch_id in users for now as fallback or default, but we should eventually rely on user_branches
diff --git a/db/migrations/14_add_whatsapp_settings.sql b/db/migrations/14_add_whatsapp_settings.sql
index 409edf3..943c67b 100644
--- a/db/migrations/14_add_whatsapp_settings.sql
+++ b/db/migrations/14_add_whatsapp_settings.sql
@@ -5,7 +5,7 @@ CREATE TABLE IF NOT EXISTS settings (
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
 
 -- Initial WhatsApp settings
-INSERT INTO settings (setting_key, setting_value) VALUES 
+INSERT IGNORE INTO settings (setting_key, setting_value) VALUES 
 ('whatsapp_enabled', '0'),
 ('wablas_token', ''),
 ('wablas_server', 'https://console.wablas.com'),
diff --git a/db/migrations/15_add_customer_statement_permission.sql b/db/migrations/15_add_customer_statement_permission.sql
index 7cd7e78..3e0eaf8 100644
--- a/db/migrations/15_add_customer_statement_permission.sql
+++ b/db/migrations/15_add_customer_statement_permission.sql
@@ -1,5 +1,5 @@
 -- Grant permission to customer_statement.php for all users who have access to customers.php
-INSERT INTO user_permissions (user_id, page, can_view, can_add, can_edit, can_delete)
+INSERT IGNORE INTO user_permissions (user_id, page, can_view, can_add, can_edit, can_delete)
 SELECT user_id, 'customer_statement.php', can_view, can_add, can_edit, can_delete
 FROM user_permissions
 WHERE page = 'customers.php'
diff --git a/install.php b/install.php
index daa96e8..942f4ce 100644
--- a/install.php
+++ b/install.php
@@ -14,7 +14,6 @@ $success = '';
 function runSqlFile($pdo, $filePath) {
     if (!file_exists($filePath)) return false;
     $sql = file_get_contents($filePath);
-    // Split by semicolon, but be careful with triggers/procedures if any
     $queries = preg_split("/;+(?=[^']*'([^']*'[^']*')*[^']*$)/", $sql);
     foreach ($queries as $query) {
         $query = trim($query);
@@ -22,10 +21,19 @@ function runSqlFile($pdo, $filePath) {
             try {
                 $pdo->exec($query);
             } catch (PDOException $e) {
-                // Ignore errors if table already exists during re-run
-                if (strpos($e->getMessage(), 'already exists') === false) {
-                    throw $e;
+                $msg = $e->getMessage();
+                if (
+                    strpos($msg, 'already exists') !== false ||
+                    strpos($msg, 'Duplicate column name') !== false ||
+                    strpos($msg, 'Duplicate key name') !== false ||
+                    strpos($msg, 'Duplicate entry') !== false ||
+                    strpos($msg, "Can't DROP") !== false ||
+                    strpos($msg, 'check that column/key exists') !== false ||
+                    strpos($msg, 'Unknown table') !== false
+                ) {
+                    continue;
                 }
+                throw $e;
             }
         }
     }
@@ -103,7 +111,7 @@ function has_permission(\$action, \$page = null, \$user_id = null) {
             file_put_contents(__DIR__ . '/db/config.php', $configContent);
             
             // Run initial schema
-            runSqlFile($pdo, __DIR__ . '/db/migrations/01_initial_schema.sql');
+            $migrations = glob(__DIR__ . '/db/migrations/*.sql'); sort($migrations); foreach ($migrations as $migration) { runSqlFile($pdo, $migration); }
             
             $_SESSION['db_configured'] = true;
             header("Location: install.php?step=3");