diff --git a/crates/rbuilder/src/backtest/backtest_build_block.rs b/crates/rbuilder/src/backtest/backtest_build_block.rs
index 7632b2fe..b382ca3b 100644
--- a/crates/rbuilder/src/backtest/backtest_build_block.rs
+++ b/crates/rbuilder/src/backtest/backtest_build_block.rs
@@ -80,10 +80,7 @@ pub async fn run_backtest_build_block<ConfigType: LiveBuilderConfig>() -> eyre::
         print_order_and_timestamp(&block_data.available_orders, &block_data);
     }
 
-    let provider_factory = config
-        .base_config()
-        .provider_factory()?
-        .provider_factory_unchecked();
+    let provider_factory = config.base_config().provider_factory()?;
     let chain_spec = config.base_config().chain_spec()?;
     let sbundle_mergeabe_signers = config.base_config().sbundle_mergeabe_signers();
 
diff --git a/crates/rbuilder/src/live_builder/base_config.rs b/crates/rbuilder/src/live_builder/base_config.rs
index de30a035..a3fa3332 100644
--- a/crates/rbuilder/src/live_builder/base_config.rs
+++ b/crates/rbuilder/src/live_builder/base_config.rs
@@ -186,15 +186,15 @@ impl BaseConfig {
     }
 
     /// WARN: opens reth db
-    pub async fn create_builder<Provider>(
+    pub async fn create_builder(
         &self,
         cancellation_token: tokio_util::sync::CancellationToken,
     ) -> eyre::Result<
-        super::LiveBuilder<Provider, super::building::relay_submit::RelaySubmitSinkFactory>,
-    >
-    where
-        Provider: StateProviderFactory,
-    {
+        super::LiveBuilder<
+            ProviderFactoryReopener<Arc<DatabaseEnv>>,
+            super::building::relay_submit::RelaySubmitSinkFactory,
+        >,
+    > {
         let submission_config = self.submission_config()?;
         info!(
             "Builder mev boost normal relay pubkey: {:?}",
@@ -216,28 +216,30 @@ impl BaseConfig {
         let relays = self.relays()?;
         let sink_factory = RelaySubmitSinkFactory::new(self.submission_config()?, relays.clone());
 
-        Ok(LiveBuilder::<Arc<DatabaseEnv>, RelaySubmitSinkFactory> {
-            cls: self.beacon_clients()?,
-            relays,
-            watchdog_timeout: self.watchdog_timeout(),
-            error_storage_path: self.error_storage_path.clone(),
-            simulation_threads: self.simulation_threads,
-            order_input_config: OrderInputConfig::from_config(self),
+        Ok(
+            LiveBuilder::<ProviderFactoryReopener<Arc<DatabaseEnv>>, RelaySubmitSinkFactory> {
+                cls: self.beacon_clients()?,
+                relays,
+                watchdog_timeout: self.watchdog_timeout(),
+                error_storage_path: self.error_storage_path.clone(),
+                simulation_threads: self.simulation_threads,
+                order_input_config: OrderInputConfig::from_config(self),
 
-            chain_chain_spec: self.chain_spec()?,
-            provider_factory,
+                chain_chain_spec: self.chain_spec()?,
+                provider_factory,
 
-            coinbase_signer: self.coinbase_signer()?,
-            extra_data: self.extra_data()?,
-            blocklist: self.blocklist()?,
+                coinbase_signer: self.coinbase_signer()?,
+                extra_data: self.extra_data()?,
+                blocklist: self.blocklist()?,
 
-            global_cancellation: cancellation_token,
+                global_cancellation: cancellation_token,
 
-            bidding_service: Box::new(DummyBiddingService {}),
-            extra_rpc: RpcModule::new(()),
-            sink_factory,
-            builders: Vec::new(),
-        })
+                bidding_service: Box::new(DummyBiddingService {}),
+                extra_rpc: RpcModule::new(()),
+                sink_factory,
+                builders: Vec::new(),
+            },
+        )
     }
 
     pub fn jsonrpc_server_ip(&self) -> Ipv4Addr {
diff --git a/crates/rbuilder/src/live_builder/cli.rs b/crates/rbuilder/src/live_builder/cli.rs
index 499604ad..9adb0b17 100644
--- a/crates/rbuilder/src/live_builder/cli.rs
+++ b/crates/rbuilder/src/live_builder/cli.rs
@@ -51,7 +51,7 @@ pub trait LiveBuilderConfig: std::fmt::Debug + serde::de::DeserializeOwned {
     fn build_backtest_block(
         &self,
         building_algorithm_name: &str,
-        input: BacktestSimulateBlockInput<'_, Arc<DatabaseEnv>>,
+        input: BacktestSimulateBlockInput<'_, ProviderFactoryReopener<Arc<DatabaseEnv>>>,
     ) -> eyre::Result<(Block, CachedReads)>;
 }
 
diff --git a/crates/rbuilder/src/live_builder/config.rs b/crates/rbuilder/src/live_builder/config.rs
index 0558b96e..a6e83c0a 100644
--- a/crates/rbuilder/src/live_builder/config.rs
+++ b/crates/rbuilder/src/live_builder/config.rs
@@ -198,7 +198,8 @@ fn create_builders(
     configs: Vec<BuilderConfig>,
     root_hash_task_pool: BlockingTaskPool,
     sbundle_mergeabe_signers: Vec<Address>,
-) -> Vec<Arc<dyn BlockBuildingAlgorithm<Arc<DatabaseEnv>, BestBlockCell>>> {
+) -> Vec<Arc<dyn BlockBuildingAlgorithm<ProviderFactoryReopener<Arc<DatabaseEnv>>, BestBlockCell>>>
+{
     configs
         .into_iter()
         .map(|cfg| create_builder(cfg, &root_hash_task_pool, &sbundle_mergeabe_signers))
@@ -209,7 +210,7 @@ fn create_builder(
     cfg: BuilderConfig,
     root_hash_task_pool: &BlockingTaskPool,
     sbundle_mergeabe_signers: &[Address],
-) -> Arc<dyn BlockBuildingAlgorithm<Arc<DatabaseEnv>, BestBlockCell>> {
+) -> Arc<dyn BlockBuildingAlgorithm<ProviderFactoryReopener<Arc<DatabaseEnv>>, BestBlockCell>> {
     match cfg.builder {
         SpecificBuilderConfig::OrderingBuilder(order_cfg) => {
             Arc::new(OrderingBuildingAlgorithm::new(