diff --git a/pylops/signalprocessing/sliding1d.py b/pylops/signalprocessing/sliding1d.py
index 5a9232f9..5cb8c213 100644
--- a/pylops/signalprocessing/sliding1d.py
+++ b/pylops/signalprocessing/sliding1d.py
@@ -157,7 +157,7 @@ def Sliding1D(
 
     # create tapers
     if tapertype is not None:
-        tap = taper(nwin, nover, tapertype=tapertype)
+        tap = taper(nwin, nover, tapertype=tapertype).astype(Op.dtype)
         tapin = tap.copy()
         tapin[:nover] = 1
         tapend = tap.copy()
@@ -172,7 +172,9 @@ def Sliding1D(
     if tapertype is None:
         OOp = BlockDiag([Op for _ in range(nwins)])
     else:
-        OOp = BlockDiag([Diagonal(taps[itap].ravel()) * Op for itap in range(nwins)])
+        OOp = BlockDiag(
+            [Diagonal(taps[itap].ravel(), dtype=Op.dtype) * Op for itap in range(nwins)]
+        )
 
     combining = HStack(
         [
diff --git a/pylops/signalprocessing/sliding2d.py b/pylops/signalprocessing/sliding2d.py
index 5af92b0b..c97802c6 100644
--- a/pylops/signalprocessing/sliding2d.py
+++ b/pylops/signalprocessing/sliding2d.py
@@ -191,7 +191,7 @@ def Sliding2D(
 
     # create tapers
     if tapertype is not None:
-        tap = taper2d(dimsd[1], nwin, nover, tapertype=tapertype)
+        tap = taper2d(dimsd[1], nwin, nover, tapertype=tapertype).astype(Op.dtype)
         tapin = tap.copy()
         tapin[:nover] = 1
         tapend = tap.copy()
@@ -206,7 +206,9 @@ def Sliding2D(
     if tapertype is None:
         OOp = BlockDiag([Op for _ in range(nwins)])
     else:
-        OOp = BlockDiag([Diagonal(taps[itap].ravel()) * Op for itap in range(nwins)])
+        OOp = BlockDiag(
+            [Diagonal(taps[itap].ravel(), dtype=Op.dtype) * Op for itap in range(nwins)]
+        )
 
     combining = HStack(
         [
diff --git a/pylops/signalprocessing/sliding3d.py b/pylops/signalprocessing/sliding3d.py
index f0a2b64a..7d21018c 100644
--- a/pylops/signalprocessing/sliding3d.py
+++ b/pylops/signalprocessing/sliding3d.py
@@ -183,13 +183,16 @@ def Sliding3D(
 
     # create tapers
     if tapertype is not None:
-        tap = taper3d(dimsd[2], nwin, nover, tapertype=tapertype)
+        tap = taper3d(dimsd[2], nwin, nover, tapertype=tapertype).astype(Op.dtype)
 
     # transform to apply
     if tapertype is None:
         OOp = BlockDiag([Op for _ in range(nwins)], nproc=nproc)
     else:
-        OOp = BlockDiag([Diagonal(tap.ravel()) * Op for _ in range(nwins)], nproc=nproc)
+        OOp = BlockDiag(
+            [Diagonal(tap.ravel(), dtype=Op.dtype) * Op for _ in range(nwins)],
+            nproc=nproc,
+        )
 
     hstack = HStack(
         [