diff --git a/meta/classes/image-tools-extension.bbclass b/meta/classes/image-tools-extension.bbclass
index 7c84505f..04ed1f84 100644
--- a/meta/classes/image-tools-extension.bbclass
+++ b/meta/classes/image-tools-extension.bbclass
@@ -5,43 +5,78 @@
 #
 # This file extends the image.bbclass to supply tools for futher imager functions
 
-inherit buildchroot
+inherit sbuild
 
 IMAGER_INSTALL ??= ""
 IMAGER_BUILD_DEPS ??= ""
 DEPENDS += "${IMAGER_BUILD_DEPS}"
 
-do_install_imager_deps[depends] = "${BUILDCHROOT_DEP} isar-apt:do_cache_config"
-do_install_imager_deps[deptask] = "do_deploy_deb"
-do_install_imager_deps[lockfiles] += "${REPO_ISAR_DIR}/isar.lock"
-do_install_imager_deps[network] = "${TASK_USE_NETWORK_AND_SUDO}"
-do_install_imager_deps() {
-    if [ -z "${@d.getVar("IMAGER_INSTALL").strip()}" ]; then
-        exit
-    fi
+SCHROOT_MOUNTS = "${WORKDIR}:${PP_WORK} ${IMAGE_ROOTFS}:${PP_ROOTFS} ${DEPLOY_DIR_IMAGE}:${PP_DEPLOY}"
+SCHROOT_MOUNTS += "${REPO_ISAR_DIR}/${DISTRO}:/isar-apt"
+
+imager_run() {
+    schroot_create_configs
+    insert_mounts
+
+    session_id=$(schroot -q -b -c ${SBUILD_CHROOT})
+    echo "Started session: ${session_id}"
+
+    # Schroot session mountpoint for deb downloads import/export
+    schroot_dir="/var/run/schroot/mount/${session_id}"
+
+    # setting up error handler
+    imager_cleanup() {
+        set +e
+        schroot -q -f -e -c ${session_id} > /dev/null 2>&1
+        remove_mounts > /dev/null 2>&1
+        schroot_delete_configs > /dev/null 2>&1
+    }
+    trap 'exit 1' INT HUP QUIT TERM ALRM USR1
+    trap 'imager_cleanup' EXIT
+
+    if [ -n "${@d.getVar("IMAGER_INSTALL").strip()}" ]; then
+        echo "Installing deps: ${IMAGER_INSTALL}"
 
-    distro="${BASE_DISTRO}-${BASE_DISTRO_CODENAME}"
-    if [ ${ISAR_CROSS_COMPILE} -eq 1 ]; then
-        distro="${HOST_BASE_DISTRO}-${BASE_DISTRO_CODENAME}"
+        distro="${BASE_DISTRO}-${BASE_DISTRO_CODENAME}"
+        if [ ${ISAR_CROSS_COMPILE} -eq 1 ]; then
+            distro="${HOST_BASE_DISTRO}-${BASE_DISTRO_CODENAME}"
+        fi
+
+        # prepare isar-apt
+        schroot -r -c ${session_id} -d / -u root -- sh -c " \
+            mkdir -p '/etc/apt/sources.list.d'
+            echo 'deb [trusted=yes] file:///isar-apt ${DEBDISTRONAME} main' > \
+                '/etc/apt/sources.list.d/isar-apt.list'
+
+            mkdir -p '/etc/apt/preferences.d'
+            cat << EOF > '/etc/apt/preferences.d/isar-apt'
+Package: *
+Pin: release n=${DEBDISTRONAME}
+Pin-Priority: 1000
+EOF"
+
+        E="${@ isar_export_proxies(d)}"
+        deb_dl_dir_import ${schroot_dir} ${distro}
+        schroot -r -c ${session_id} -d / -u root -- sh -c " \
+            apt-get update \
+                -o Dir::Etc::SourceList='sources.list.d/isar-apt.list' \
+                -o Dir::Etc::SourceParts='-' \
+                -o APT::Get::List-Cleanup='0'
+            apt-get -o Debug::pkgProblemResolver=yes --no-install-recommends -y \
+                --allow-unauthenticated --allow-downgrades --download-only install \
+                ${IMAGER_INSTALL}"
+
+        deb_dl_dir_export ${schroot_dir} ${distro}
+        schroot -r -c ${session_id} -d / -u root -- sh -c " \
+            apt-get -o Debug::pkgProblemResolver=yes --no-install-recommends -y \
+                --allow-unauthenticated --allow-downgrades install \
+                ${IMAGER_INSTALL}"
     fi
 
-    buildchroot_do_mounts
-
-    E="${@ isar_export_proxies(d)}"
-    deb_dl_dir_import ${BUILDCHROOT_DIR} ${distro}
-    sudo -E chroot ${BUILDCHROOT_DIR} sh -c ' \
-        apt-get update \
-            -o Dir::Etc::SourceList="sources.list.d/isar-apt.list" \
-            -o Dir::Etc::SourceParts="-" \
-            -o APT::Get::List-Cleanup="0"
-        apt-get -o Debug::pkgProblemResolver=yes --no-install-recommends -y \
-            --allow-unauthenticated --allow-downgrades --download-only install \
-            ${IMAGER_INSTALL}'
-
-    deb_dl_dir_export ${BUILDCHROOT_DIR} ${distro}
-    sudo -E chroot ${BUILDCHROOT_DIR} sh -c ' \
-        apt-get -o Debug::pkgProblemResolver=yes --no-install-recommends -y \
-            --allow-unauthenticated --allow-downgrades install \
-            ${IMAGER_INSTALL}'
+    schroot -r -c ${session_id} "$@"
+
+    schroot -e -c ${session_id}
+
+    remove_mounts
+    schroot_delete_configs
 }
-addtask install_imager_deps before do_image_tools
