Welcome to Pro-line Windows Cornwall Windows
At Pro-Line Windows, we’ve built a reputation across Cornwall for supplying and installing high-quality windows and doors that combine style, performance, and durability. Based in Penzance, we proudly serve homeowners and businesses throughout the region, offering everything from modern double glazing solutions to traditional timber-style finishes.
Whether you’re upgrading your home’s energy efficiency or simply looking to refresh its appearance, we’re here to help with expertly fitted windows in Cornwall that are designed to last.
Transform your home with premium-quality windows, doors, and conservatories. We are suppliers and installers of the renowned REHAU PVCu double glazing system for windows, doors and conservatories.
Based in West Cornwall, we supply and install windows, doors and conservatories for homes and businesses in Penzance, Sennen, St Just, St Buryan, St Ives, Carbis Bay, Hayle, Helston and the surrounding areas.
As a local business, we understand the needs of our community. We’re proud to be the go-to team for Cornwall windows and doors, trusted by homeowners who value quality craftsmanship and honest advice. That’s why we offer a full range of services, including:
Cornwall's Local Window Specialits - Why Choose Us?

Premium Quality Products including High-performance Double Glazing in Cornwall: Choose from our extensive range of energy-efficient windows, secure doors, and beautifully crafted conservatories.

New window and door installations: Our skilled professionals ensure a flawless installation, working efficiently and treating your property with care.

Supply-Only Options: We offer a convenient supply-only service, providing you with all the high-quality materials you need for your project.

Bespoke Designs Tailored to Your Property: We provide bespoke solutions to match your personal style and your property’s character.

Local Expertise: We understand the unique needs of homes in our community and are committed to serving our customers with care and integrity. We offer Reliable window repairs in Penzance and surrounding areas.
Our Products
Durable, energy-efficient, and stylish windows to brighten your home and lower energy bills.
Secure, elegant, and functional doors, with a wide variety of styles and materials to suit any entrance.
Extend your living space with beautifully crafted conservatories that bring the outdoors in.

Extensive range of uPVC, aluminium, and composite products

Energy-efficient solutions to reduce heat loss and lower energy bills

Prompt and tidy installations

Comprehensive aftercare and repairs
With Pro-Line Windows, you can be confident you’re getting more than just pro windows: you’re getting peace of mind, personalised service, and products built to perform in Cornwall’s coastal conditions.
Your Journey With Us
Thinking about upgrading your windows or doors? Need fast, reliable window repairs in Penzance? Our team is happy to help. Contact us today to arrange a free quote or to learn more about our wide range of windows and doors in Cornwall.
Contact
Fill out our Contact Form to send us a message directly. Simply provide your name, email, and a brief description of your enquiry, and we’ll get back to you promptly.