Get 20% Off your First Project

Premium uPVC Windows

Enhance your home with durable, energy-efficient uPVC windows that reduce heating costs by up to 30% and require minimal maintenance

⭐⭐⭐⭐⭐Rated 4.9/5 from 300+ reviews

10 Year Guarantee

Energy Efficient

Modern Efficiency, Lasting Performance

Introduction

Designed for modern homes and lifestyles, our premium uPVC windows combine exceptional durability with outstanding energy efficiency and security features.

Each window is custom-manufactured to your exact specifications, offering superior thermal insulation, enhanced security, and a wide range of styles and finishes to complement your home's aesthetic.

Superior Energy Efficiency

Multi-chambered profiles for excellent thermal performance

Enhanced Security

Advanced multi-point locking systems for peace of mind

Customized to Your Home

Wide range of styles, colors, and finishes available

Harrington premium uPVC window showcasing durability and energy efficiency

Built for lasting performance

Engineered for modern living

Years Lifespan

Minimum expected durability

Energy Savings

Average heating cost reduction

Satisfaction

Customer satisfaction rate

Year Guarantee

Full parts and labor warranty

0.0

Star Rating

Average customer review

20% OFF

Your First Project

Limited time offer for new customers. Transform your home with our premium uPVC windows.

*Terms and conditions apply. Offer valid until end of month.

Key Benefits

Why Choose Our uPVC Windows

Our uPVC windows offer unmatched durability, energy efficiency, and security, ensuring your home remains comfortable and protected.

Enhanced Security

Multi-point locking systems and reinforced frames for complete peace of mind

Energy Efficient

A+ rated windows that help reduce energy bills by up to 30%

Low Maintenance

Easy to clean and never needs painting or treating

Weather Resistant

Excellent protection against the elements with superior sealing

Harrington uPVC windows showcasing energy efficiency and modern design

Energy Efficiency That Saves

Our uPVC windows are designed with advanced thermal technology to significantly reduce heat loss and lower your energy bills. The multi-chambered profiles and high-performance glazing create an exceptional barrier against the elements.

Reduces heating costs by up to 30%
A+ energy rating available
Excellent noise reduction properties

Product Details

Engineered for Excellence

Modern Design Features

Our uPVC windows are engineered with advanced materials and techniques to provide superior performance and aesthetics.

Multi-Chambered Profiles

Advanced uPVC profiles with multiple internal chambers for superior thermal insulation and structural integrity.

Precision-Welded Corners

High-quality fusion-welded joints creating seamless, weather-tight corners for maximum durability and performance.

Versatile Design Options

Customizable frame styles, opening configurations and decorative elements to complement any architectural style.

Contemporary Styling

With advanced materials

Our Installation Process

How we ensure a perfect fit every time

Free Consultation & Measure

Our local experts visit your home to understand your requirements, take precise measurements, and provide tailored advice on uPVC window options.

Detailed Design & Quote

We create a custom window design that suits your home's style and provide a clear, no-pressure quote with various uPVC options.

Manufacturing

Your uPVC windows are precision-manufactured using quality materials and advanced production techniques for superior performance.

Professional Installation

Our skilled fitters install your uPVC windows with minimal disruption, typically taking just 1-2 days per property.

Final Inspection & Aftercare

We conduct a thorough inspection and walkthrough, backed by our comprehensive guarantee and aftercare service for your new uPVC windows.

Free Consultation & Measure

We take precise measurements of your existing windows and discuss your preferences for style, colour, and functionality. Our experts will assess your property's specific requirements and explain the best options available.

Free Service

No cost, no pressure

Our Gallery

See our work in action

Our Guarantee

Your peace of mind is our priority

30-Year Frame Guarantee

Our uPVC frames are guaranteed to maintain structural integrity and performance for 30 years.

10-Year Installation Warranty

All our uPVC window installations come with a full 10-year workmanship warranty for peace of mind.

Insurance-Backed Guarantee

For complete reassurance, all our guarantees are insurance-backed by trusted UK providers.

Rapid Response Promise

In the unlikely event of an issue, we guarantee a 48-hour callout anywhere in our service area.

Our Promise to You

We stand behind the quality of our products and workmanship. If you're not completely satisfied, we'll make it right. It's that simple.

Customer Testimonials

Hear from our satisfied clients

★★★★★

Our new uPVC windows have made a huge difference to our home's comfort and energy efficiency. The installation was quick and professional.

James R

Hampstead

★★★★★

The quality of Harrington's uPVC windows is exceptional. They've significantly reduced outside noise and our heating bills have noticeably decreased.

Sarah M

Surrey

★★★★★

From consultation to installation, Harrington Windows provided excellent service. Our new uPVC windows look fantastic and the security features give us peace of mind.

David & Emma P

Kent

★★★★★

4.9 out of 5

★★★★★

9.87 out of 10

Standard uPVC Windows

1-2 days

Traditional Timber

3-4 days

Feature	Our uPVC Windows	Standard uPVC Windows	Timber Windows
Energy Efficiency	A+ Rated	B-C Rated	Variable performance
Security	Multi-point locking system	Basic locking	Traditional locks
Maintenance	Minimal - wipe clean	Low maintenance	Regular painting/treatment
Lifespan	30+ years	15-20 years	20-60 years with maintenance
Weather Resistance	Excellent	Good	Requires regular treatment
Noise Reduction	Superior acoustic insulation	Standard	Variable
Cost	Premium quality investment	Budget-friendly	Highest initial cost
Installation Time	1-2 days	1-2 days	3-4 days