diff --git a/mesonbuild/backend/vs2017backend.py b/mesonbuild/backend/vs2017backend.py
index bf6c33771..0f891fec4 100644
--- a/mesonbuild/backend/vs2017backend.py
+++ b/mesonbuild/backend/vs2017backend.py
@@ -11,7 +11,9 @@ from .vs2010backend import Vs2010Backend
 from ..mesonlib import MesonException
 
 if T.TYPE_CHECKING:
+    from ..arglist import CompilerArgs
     from ..build import Build
+    from ..compilers.compilers import Language
 
 
 class Vs2017Backend(Vs2010Backend):
@@ -45,11 +47,11 @@ class Vs2017Backend(Vs2010Backend):
         if sdk_version:
             self.windows_target_platform_version = sdk_version.rstrip('\\')
 
-    def generate_debug_information(self, link):
+    def generate_debug_information(self, link: ET.Element) -> None:
         # valid values for vs2017 is 'false', 'true', 'DebugFastLink', 'DebugFull'
         ET.SubElement(link, 'GenerateDebugInformation').text = 'DebugFull'
 
-    def generate_lang_standard_info(self, file_args, clconf):
+    def generate_lang_standard_info(self, file_args: T.Dict[Language, CompilerArgs], clconf: ET.Element) -> None:
         if 'cpp' in file_args:
             optargs = [x for x in file_args['cpp'] if x.startswith('/std:c++')]
             if optargs:
diff --git a/mesonbuild/backend/vs2019backend.py b/mesonbuild/backend/vs2019backend.py
index bf86a4701..b6cc0a382 100644
--- a/mesonbuild/backend/vs2019backend.py
+++ b/mesonbuild/backend/vs2019backend.py
@@ -10,7 +10,9 @@ import xml.etree.ElementTree as ET
 from .vs2010backend import Vs2010Backend
 
 if T.TYPE_CHECKING:
+    from ..arglist import CompilerArgs
     from ..build import Build
+    from ..compilers.compilers import Language
 
 
 class Vs2019Backend(Vs2010Backend):
@@ -40,11 +42,11 @@ class Vs2019Backend(Vs2010Backend):
         if sdk_version:
             self.windows_target_platform_version = sdk_version.rstrip('\\')
 
-    def generate_debug_information(self, link):
+    def generate_debug_information(self, link: ET.Element) -> None:
         # valid values for vs2019 is 'false', 'true', 'DebugFastLink', 'DebugFull'
         ET.SubElement(link, 'GenerateDebugInformation').text = 'DebugFull'
 
-    def generate_lang_standard_info(self, file_args, clconf):
+    def generate_lang_standard_info(self, file_args: T.Dict[Language, CompilerArgs], clconf: ET.Element) -> None:
         if 'cpp' in file_args:
             optargs = [x for x in file_args['cpp'] if x.startswith('/std:c++')]
             if optargs:
diff --git a/mesonbuild/backend/vs2022backend.py b/mesonbuild/backend/vs2022backend.py
index d7de4be32..b6aaf3c70 100644
--- a/mesonbuild/backend/vs2022backend.py
+++ b/mesonbuild/backend/vs2022backend.py
@@ -10,7 +10,9 @@ import xml.etree.ElementTree as ET
 from .vs2010backend import Vs2010Backend
 
 if T.TYPE_CHECKING:
+    from ..arglist import CompilerArgs
     from ..build import Build
+    from ..compilers.compilers import Language
 
 
 class Vs2022Backend(Vs2010Backend):
@@ -40,11 +42,11 @@ class Vs2022Backend(Vs2010Backend):
         if sdk_version:
             self.windows_target_platform_version = sdk_version.rstrip('\\')
 
-    def generate_debug_information(self, link):
+    def generate_debug_information(self, link: ET.Element) -> None:
         # valid values for vs2022 is 'false', 'true', 'DebugFastLink', 'DebugFull'
         ET.SubElement(link, 'GenerateDebugInformation').text = 'DebugFull'
 
-    def generate_lang_standard_info(self, file_args, clconf):
+    def generate_lang_standard_info(self, file_args: T.Dict[Language, CompilerArgs], clconf: ET.Element) -> None:
         if 'cpp' in file_args:
             optargs = [x for x in file_args['cpp'] if x.startswith('/std:c++')]
             if optargs:
diff --git a/mesonbuild/backend/vs2026backend.py b/mesonbuild/backend/vs2026backend.py
index ba24d8ac4..5b3eea9ae 100644
--- a/mesonbuild/backend/vs2026backend.py
+++ b/mesonbuild/backend/vs2026backend.py
@@ -10,7 +10,9 @@ import xml.etree.ElementTree as ET
 from .vs2010backend import Vs2010Backend
 
 if T.TYPE_CHECKING:
+    from ..arglist import CompilerArgs
     from ..build import Build
+    from ..compilers.compilers import Language
 
 
 class Vs2026Backend(Vs2010Backend):
@@ -40,11 +42,11 @@ class Vs2026Backend(Vs2010Backend):
         if sdk_version:
             self.windows_target_platform_version = sdk_version.rstrip('\\')
 
-    def generate_debug_information(self, link):
+    def generate_debug_information(self, link: ET.Element) -> None:
         # valid values for vs2026 is 'false', 'true', 'DebugFastLink', 'DebugFull'
         ET.SubElement(link, 'GenerateDebugInformation').text = 'DebugFull'
 
-    def generate_lang_standard_info(self, file_args, clconf):
+    def generate_lang_standard_info(self, file_args: T.Dict[Language, CompilerArgs], clconf: ET.Element) -> None:
         if 'cpp' in file_args:
             optargs = [x for x in file_args['cpp'] if x.startswith('/std:c++')]
             if optargs:
diff --git a/run_mypy.py b/run_mypy.py
index be8f5592d..bce6775e2 100755
--- a/run_mypy.py
+++ b/run_mypy.py
@@ -34,6 +34,14 @@ modules = [
     'mesonbuild/backend/backends.py',
     'mesonbuild/backend/ninjabackend.py',
     'mesonbuild/backend/nonebackend.py',
+    'mesonbuild/backend/vs2010backend.py',
+    'mesonbuild/backend/vs2012backend.py',
+    'mesonbuild/backend/vs2013backend.py',
+    'mesonbuild/backend/vs2015backend.py',
+    'mesonbuild/backend/vs2017backend.py',
+    'mesonbuild/backend/vs2019backend.py',
+    'mesonbuild/backend/vs2022backend.py',
+    'mesonbuild/backend/vs2026backend.py',
     'mesonbuild/cmdline.py',
     'mesonbuild/coredata.py',
     'mesonbuild/depfile.py',