diff --git a/grpcweb/client.go b/grpcweb/client.go
index 4f3b662..4995c45 100644
--- a/grpcweb/client.go
+++ b/grpcweb/client.go
@@ -21,6 +21,7 @@ import (
 	"github.com/mstoykov/k6-taskqueue-lib/taskqueue"
 	"go.k6.io/k6/js/common"
 	"go.k6.io/k6/js/modules"
+	"go.k6.io/k6/lib/types"
 	"go.k6.io/k6/metrics"
 	"golang.org/x/net/http2"
 	"google.golang.org/grpc"
@@ -193,13 +194,19 @@ func (c *client) Invoke(method string, req sobek.Value, params sobek.Value) (*in
 		return nil, fmt.Errorf("request cannot be nil")
 	}
 
-	connectReq, ctm, err := c.buildRequest(md, req, params)
+	connectReq, ctm, timeout, err := c.buildRequest(md, req, params)
 	if err != nil {
 		return nil, err
 	}
 	c.setSystemTags(ctm, c.addr, method)
 
-	ctx := c.vu.Context()
+	if timeout <= 0 {
+		// default timeout is 2 minutes
+		timeout = 2 * time.Minute
+	}
+
+	ctx, cancel := context.WithTimeout(c.vu.Context(), timeout)
+	defer cancel()
 
 	resp, err := c.callUnary(ctx, method, connectReq, ctm)
 	if err != nil {
@@ -239,7 +246,7 @@ func (c *client) AsyncInvoke(method string, req sobek.Value, params sobek.Value)
 		return promise
 	}
 
-	connectReq, ctm, err := c.buildRequest(md, req, params)
+	connectReq, ctm, timeout, err := c.buildRequest(md, req, params)
 	if err != nil {
 		reject(err)
 		return promise
@@ -248,7 +255,14 @@ func (c *client) AsyncInvoke(method string, req sobek.Value, params sobek.Value)
 
 	callback := c.vu.RegisterCallback()
 
-	ctx := c.vu.Context()
+	if timeout <= 0 {
+		// default timeout is 2 minutes
+		timeout = 2 * time.Minute
+	}
+
+	ctx, cancel := context.WithTimeout(c.vu.Context(), timeout)
+	defer cancel()
+
 	go func() {
 		resp, err := c.callUnary(ctx, method, connectReq, ctm)
 
@@ -325,12 +339,18 @@ func (c *client) Stream(method string, req, params sobek.Value) (*sobek.Object,
 		connect.WithGRPCWeb(),
 	)
 
-	connectReq, ctm, err := c.buildRequest(md, req, params)
+	connectReq, ctm, timeout, err := c.buildRequest(md, req, params)
 	if err != nil {
 		return nil, err
 	}
 	c.setSystemTags(ctm, c.addr, method)
 
+	ctx := c.vu.Context()
+	var cancel context.CancelFunc
+	if timeout > 0 {
+		ctx, cancel = context.WithTimeout(ctx, timeout)
+	}
+
 	s := &stream{
 		vu:             c.vu,
 		metrics:        c.metrics,
@@ -339,9 +359,10 @@ func (c *client) Stream(method string, req, params sobek.Value) (*sobek.Object,
 		md:             md,
 		eventListeners: newEventListeners(),
 		tq:             taskqueue.New(c.vu.RegisterCallback),
+		cancel:         cancel,
 	}
 
-	if err := s.begin(connectReq); err != nil {
+	if err := s.begin(ctx, connectReq); err != nil {
 		return nil, err
 	}
 
@@ -423,6 +444,7 @@ func (c *client) parseConnectParams(params sobek.Value) (connectParams, error) {
 type callParams struct {
 	metadata    http.Header
 	tagsAndMeta metrics.TagsAndMeta
+	timeout     time.Duration
 }
 
 func (c *client) parseCallParams(params sobek.Value) (callParams, error) {
@@ -431,6 +453,7 @@ func (c *client) parseCallParams(params sobek.Value) (callParams, error) {
 	result := callParams{
 		metadata:    http.Header{},
 		tagsAndMeta: c.vu.State().Tags.GetCurrentValues(),
+		timeout:     0,
 	}
 
 	if params != nil {
@@ -460,30 +483,36 @@ func (c *client) parseCallParams(params sobek.Value) (callParams, error) {
 				if err := common.ApplyCustomUserTags(rt, &result.tagsAndMeta, paramsObject.Get(k)); err != nil {
 					return result, fmt.Errorf("metric tags: %w", err)
 				}
+			case "timeout":
+				timeout, err := types.GetDurationValue(v.Export())
+				if err != nil {
+					return result, fmt.Errorf("invalid timeout value: %w", err)
+				}
+				result.timeout = timeout
 			}
 		}
 	}
 	return result, nil
 }
 
-func (c *client) buildRequest(md protoreflect.MethodDescriptor, req sobek.Value, params sobek.Value) (*connect.Request[dynamicpb.Message], *metrics.TagsAndMeta, error) {
+func (c *client) buildRequest(md protoreflect.MethodDescriptor, req sobek.Value, params sobek.Value) (*connect.Request[dynamicpb.Message], *metrics.TagsAndMeta, time.Duration, error) {
 	rt := c.vu.Runtime()
 
 	b, err := req.ToObject(rt).MarshalJSON()
 	if err != nil {
-		return nil, nil, err
+		return nil, nil, 0, err
 	}
 	reqdm := dynamicpb.NewMessage(md.Input())
 	err = protojson.Unmarshal(b, reqdm)
 	if err != nil {
-		return nil, nil, err
+		return nil, nil, 0, err
 	}
 
 	r := connect.NewRequest(reqdm)
 
 	p, err := c.parseCallParams(params)
 	if err != nil {
-		return nil, nil, err
+		return nil, nil, 0, err
 	}
 
 	// headers
@@ -491,7 +520,7 @@ func (c *client) buildRequest(md protoreflect.MethodDescriptor, req sobek.Value,
 		r.Header()[k] = v
 	}
 
-	return r, &p.tagsAndMeta, nil
+	return r, &p.tagsAndMeta, p.timeout, nil
 }
 
 func (c *client) setSystemTags(ctm *metrics.TagsAndMeta, addr *url.URL, method string) {
diff --git a/grpcweb/stream.go b/grpcweb/stream.go
index 968b683..6eb1643 100644
--- a/grpcweb/stream.go
+++ b/grpcweb/stream.go
@@ -1,6 +1,7 @@
 package grpcweb
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"sync"
@@ -74,6 +75,8 @@ type stream struct {
 	tq             *taskqueue.TaskQueue
 
 	stream *connect.ServerStreamForClient[deferredMessage]
+
+	cancel context.CancelFunc
 }
 
 func (s *stream) On(eventType string, handler func(sobek.Value) (sobek.Value, error)) {
@@ -86,9 +89,7 @@ func (s *stream) On(eventType string, handler func(sobek.Value) (sobek.Value, er
 	}
 }
 
-func (s *stream) begin(req *connect.Request[dynamicpb.Message]) error {
-	ctx := s.vu.Context()
-
+func (s *stream) begin(ctx context.Context, req *connect.Request[dynamicpb.Message]) error {
 	stream, err := s.client.CallServerStream(ctx, req)
 	if err != nil {
 		return err
@@ -197,4 +198,8 @@ func (s *stream) queueClose() {
 		})
 		return
 	})
+
+	if s.cancel != nil {
+		s.cancel()
+	}
 }