diff --git a/src/app/portfolio/[slug]/building-passport/[propertyId]/decent-homes/page.tsx b/src/app/portfolio/[slug]/building-passport/[propertyId]/decent-homes/page.tsx
index 125cb36..4354842 100644
--- a/src/app/portfolio/[slug]/building-passport/[propertyId]/decent-homes/page.tsx
+++ b/src/app/portfolio/[slug]/building-passport/[propertyId]/decent-homes/page.tsx
@@ -237,7 +237,11 @@ function CriterionContent({
 function ReplacementsContent({
   items,
 }: {
-  items: { sub_variable: string; expiry_date: string | null }[];
+  items: {
+    sub_variable: string;
+    expiry_date: string | null;
+    install_date: string | null;
+  }[];
 }) {
   const today = new Date();
   const groups: Record<
@@ -245,6 +249,7 @@ function ReplacementsContent({
     {
       sub_variable: string;
       expiry: Date;
+      install: Date;
       remaining: string;
       overdue: boolean;
     }[]
@@ -256,8 +261,9 @@ function ReplacementsContent({
   };
 
   items.forEach((item) => {
-    if (!item.expiry_date) return;
+    if (!item.expiry_date || !item.install_date) return;
     const expiry = new Date(item.expiry_date);
+    const install = new Date(item.install_date);
     const diffMs = expiry.getTime() - today.getTime();
     const diffMonths = diffMs / (1000 * 60 * 60 * 24 * 30);
 
@@ -276,6 +282,7 @@ function ReplacementsContent({
     const entry = {
       sub_variable: SUB_ITEMS_TEXT[item.sub_variable] ?? item.sub_variable,
       expiry,
+      install,
       remaining,
       overdue,
     };
@@ -351,9 +358,14 @@ function ReplacementsContent({
                     </div>
                     <div className="text-sm text-gray-600 flex justify-between">
                       <span>{comp.remaining}</span>
-                      <span className={comp.overdue ? "text-red-600" : ""}>
-                        {comp.expiry.toLocaleDateString("en-GB")}
-                      </span>
+                      <div className="flex flex-col text-right">
+                        <span className={comp.overdue ? "text-red-600" : ""}>
+                          {`Installed: ${comp.install.toLocaleDateString("en-GB")}`}
+                        </span>
+                        <span className={comp.overdue ? "text-red-600" : ""}>
+                          {`Expired: ${comp.expiry.toLocaleDateString("en-GB")}`}
+                        </span>
+                      </div>
                     </div>
                   </div>
                 ))}
@@ -385,6 +397,7 @@ function DecentHomesSummary({
     sub_variable: string;
     result: string;
     expiry_date?: string | null;
+    install_date?: string | null;
   }[];
 }) {
   const overallPass = decentHomes.decent_homes === "pass";
@@ -407,8 +420,11 @@ function DecentHomesSummary({
     D: [],
   };
 
-  const replacements: { sub_variable: string; expiry_date: string | null }[] =
-    [];
+  const replacements: {
+    sub_variable: string;
+    expiry_date: string | null;
+    install_date: string | null;
+  }[] = [];
 
   decentHomesMeta.forEach((item) => {
     if (criteriaGroups[item.criteria]) {
@@ -421,6 +437,7 @@ function DecentHomesSummary({
       replacements.push({
         sub_variable: item.sub_variable,
         expiry_date: item.expiry_date,
+        install_date: item.install_date ?? null,
       });
     }
   });
@@ -428,8 +445,7 @@ function DecentHomesSummary({
   const soonCount = replacements.filter((r) => {
     if (!r.expiry_date) return false;
     const expiry = new Date(r.expiry_date);
-    const diffMs = expiry.getTime() - new Date().getTime();
-    return diffMs < 1000 * 60 * 60 * 24 * 365;
+    return expiry.getTime() < Date.now(); // strictly overdue
   }).length;
 
   return (
@@ -463,7 +479,7 @@ function DecentHomesSummary({
           <TabsTrigger
             value="replacements"
             className="relative flex items-center space-x-2 text-orange-700 font-medium 
-             data-[state=active]:bg-brandbrown data-[state=active]:rounded-md data-[state=active]:text-gray-100"
+   data-[state=active]:bg-brandbrown data-[state=active]:rounded-md data-[state=active]:text-gray-100"
           >
             <Wrench className="w-4 h-4" />
             <span>Replacements</span>