diff --git a/lib/sonarqube/client.rb b/lib/sonarqube/client.rb
index 9a27857..bfa7db9 100644
--- a/lib/sonarqube/client.rb
+++ b/lib/sonarqube/client.rb
@@ -9,6 +9,7 @@ module Sonarqube
     include Groups
     include Permissions
     include Projects
+    include QualityGates
     include Tokens
     include Users
 
diff --git a/lib/sonarqube/client/quality_gates.rb b/lib/sonarqube/client/quality_gates.rb
new file mode 100644
index 0000000..bbdfbbe
--- /dev/null
+++ b/lib/sonarqube/client/quality_gates.rb
@@ -0,0 +1,91 @@
+# frozen_string_literal: true
+
+class Sonarqube::Client
+  # Defines methods related to tokens.
+  # @see https://SONAR_URL/web_api/api/qualitygates
+  module QualityGates
+    ALLOWED_OPERATORS = %w(LT GT)
+    ALLOWED_METRICS = %w(
+      coverage new_coverage duplicated_lines_density
+      new_duplicated_lines_density reliability_rating new_reliability_rating
+      maintainability_rating new_maintainability_rating
+    )
+    # Create new quality gate.
+    #
+    # @example
+    #   Sonarqube.create_quality_gate('name_quality_gate')
+    #
+    #   # Gracefully continue if gate already exists
+    #   begin
+    #     Sonarqube.create_quality_gate('name_quality_gate')
+    #   rescue Sonarqube::Error::BadRequest => error
+    #     raise unless error.message =~ /Name has already been taken/
+    #   end
+    #
+    # @param  [String] name (required) Quality Gate name.
+    # @return [Sonarqube::ObjectifiedHash]
+    def create_quality_gate(name)
+      raise ArgumentError, 'Missing required parameters' if name.nil?
+
+      body = { name: name }
+      post('/api/qualitygates/create', body: body)
+    end
+    alias quality_gate_create create_quality_gate
+
+    # Create condition for a quality gate.
+    #
+    # @example
+    #   # Create a condition that errors when coverage is below 90%
+    #   Sonarqube.create_quality_gate_condition('name_quality_gate', 'coverage', '90')
+    #
+    #   # Create a condition that errors when code duplication is > 3%
+    #   Sonarqube.create_quality_gate_condition('name_quality_gate', 'duplicated_lines_density',
+    #                                           '3', 'GT')
+    #
+    # @param  [String] name (required) Quality Gate name.
+    # @param  [String] metric (required) SonarQube metric name.
+    # @param  [String] error_threshold (required) Error threshold value
+    # @param  [String] operator (required) Operator - LT for <; GT for >
+    # @return [Sonarqube::ObjectifiedHash]
+    def create_quality_gate_condition(name, metric, error_threshold, operator = 'LT')
+      raise ArgumentError, 'Missing required parameters' if name.nil? || metric.nil? || error_threshold.nil?
+      raise ArgumentError, "Operator must be in #{ALLOWED_OPERATORS.join(', ')}" unless ALLOWED_OPERATORS.include?(operator)
+      raise ArgumentError, "Metric must be in #{ALLOWED_METRICS.join(', ')}" unless ALLOWED_METRICS.include?(metric)
+
+      body = {
+        gateName: name,
+        metric: metric,
+        error: error_threshold,
+        op: operator
+      }
+      post('/api/qualitygates/create_condition', body: body)
+    end
+    alias quality_gate_condition_create create_quality_gate_condition
+
+    # Set the default quality gate.
+    #
+    # @example
+    #   Sonarqube.set_default_quality_gate('name_quality_gate')
+    #
+    # @param  [String] name (required) Quality Gate name.
+    # @return [Sonarqube::ObjectifiedHash]
+    def set_default_quality_gate(name)
+      raise ArgumentError, 'Missing required parameters' if name.nil?
+
+      body = { name: name }
+      post('/api/qualitygates/set_as_default', body: body)
+    end
+    alias default_quality_gate_set set_default_quality_gate
+
+    # List quality gates.
+    #
+    # @example
+    #   Sonarqube.list_quality_gates
+    #
+    # @return [Sonarqube::ObjectifiedHash].
+    def list_quality_gates
+      get('/api/qualitygates/list')
+    end
+    alias quality_gates_list list_quality_gates
+  end
+end
diff --git a/spec/fixtures/quality_gates_condition_create.json b/spec/fixtures/quality_gates_condition_create.json
new file mode 100644
index 0000000..3682110
--- /dev/null
+++ b/spec/fixtures/quality_gates_condition_create.json
@@ -0,0 +1,6 @@
+{
+  "id": "AU-Tpxb--iU5OvuD2FLy",
+  "metric": "coverage",
+  "op": "LT",
+  "error": "90"
+}
diff --git a/spec/fixtures/quality_gates_create.json b/spec/fixtures/quality_gates_create.json
new file mode 100644
index 0000000..260892c
--- /dev/null
+++ b/spec/fixtures/quality_gates_create.json
@@ -0,0 +1,4 @@
+{
+  "id": "AU-Tpxb--iU5OvuD2FLy",
+  "name": "name_quality_gate"
+}
diff --git a/spec/fixtures/quality_gates_list.json b/spec/fixtures/quality_gates_list.json
new file mode 100644
index 0000000..cd36b8c
--- /dev/null
+++ b/spec/fixtures/quality_gates_list.json
@@ -0,0 +1,38 @@
+{
+  "qualitygates": [
+    {
+      "id": "AU-Tpxb--iU5OvuD2FLy",
+      "name": "Sonar way",
+      "isDefault": true,
+      "isBuiltIn": true,
+      "actions": {
+        "rename": false,
+        "setAsDefault": false,
+        "copy": true,
+        "associateProjects": false,
+        "delete": false,
+        "manageConditions": false,
+        "delegate": false
+      }
+    },
+    {
+      "id": "AU-Tpxb--iU5OvuD2FLz",
+      "name": "Sonar way - Without Coverage",
+      "isDefault": false,
+      "isBuiltIn": false,
+      "actions": {
+        "rename": true,
+        "setAsDefault": true,
+        "copy": true,
+        "associateProjects": true,
+        "delete": true,
+        "manageConditions": true,
+        "delegate": true
+      }
+    }
+  ],
+  "default": 8,
+  "actions": {
+    "create": true
+  }
+}
diff --git a/spec/fixtures/quality_gates_set_default.json b/spec/fixtures/quality_gates_set_default.json
new file mode 100644
index 0000000..0967ef4
--- /dev/null
+++ b/spec/fixtures/quality_gates_set_default.json
@@ -0,0 +1 @@
+{}
diff --git a/spec/sonarqube/client/quality_gates_spec.rb b/spec/sonarqube/client/quality_gates_spec.rb
new file mode 100644
index 0000000..c55ccd3
--- /dev/null
+++ b/spec/sonarqube/client/quality_gates_spec.rb
@@ -0,0 +1,65 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Sonarqube::Client do
+  describe '.quality_gate_create' do
+    before do
+      stub_post('/api/qualitygates/create', 'quality_gates_create')
+      @quality_gate = Sonarqube.create_quality_gate('name_quality_gate')
+    end
+
+    it 'gets the correct resource' do
+      expect(a_post('/api/qualitygates/create')).to have_been_made
+    end
+
+    it 'returns the quality gate ID' do
+      expect(@quality_gate).to be_a Sonarqube::ObjectifiedHash
+      expect(@quality_gate.id).to eq('AU-Tpxb--iU5OvuD2FLy')
+    end
+  end
+
+  describe '.quality_gate_condition_create' do
+    before do
+      stub_post('/api/qualitygates/create_condition', 'quality_gates_condition_create')
+      @condition = Sonarqube.create_quality_gate_condition('name_quality_gate',
+                                                           'coverage', '90',
+                                                           'LT')
+    end
+
+    it 'gets the correct resource' do
+      expect(a_post('/api/qualitygates/create_condition')).to have_been_made
+    end
+
+    it 'returns the quality gate condition details' do
+      expect(@condition).to be_a Sonarqube::ObjectifiedHash
+      expect(@condition.metric).to eq('coverage')
+    end
+  end
+
+  describe '.default_quality_gate_set' do
+    before do
+      stub_post('/api/qualitygates/set_as_default', 'quality_gates_set_default')
+      Sonarqube.set_default_quality_gate('name_quality_gate')
+    end
+
+    it 'gets the correct resource' do
+      expect(a_post('/api/qualitygates/set_as_default')).to have_been_made
+    end
+  end
+
+  describe '.quality_gates_list' do
+    before do
+      stub_get('/api/qualitygates/list', 'quality_gates_list')
+      @result = Sonarqube.list_quality_gates
+    end
+
+    it 'returns array of quality gates' do
+      expect(@result.qualitygates).to be_a(Array)
+    end
+
+    it 'provides details of each quality gate' do
+      expect(@result.qualitygates.first.name).to eq('Sonar way')
+    end
+  end
+end