GC Double Glazing & Locks

GC Double Glazing & Locks is a family-run business based in Sunderland, carrying over 28 years of experience in the field of UPVC and aluminium products. We are dedicated to providing exceptional customer service, meticulous workmanship, and competitive prices on repairs, replacements, and installations.

Our Expertise

Our skilled team possesses extensive expertise in:

• Fabrication: Creating and designing high-quality UPVC and aluminium products.
• Installation: Professional installation of windows, doors, and other building envelope components.
• Sales: Offering a wide range of products and solutions tailored to your unique needs.
• Service & Commercial Contracts: Responsive repairs and ongoing maintenance for both residential and commercial properties.

Our Services

We specialize in a comprehensive range of services covering both repairs and installations, including:

Windows & Doors

• Replacement of damaged or outdated windows and doors in both UPVC and aluminium.
• Supply and installation of brand new windows and doors.
• Comprehensive repairs to existing windows and doors.
• Double-glazing replacements.

Bi-folding Doors

• Supply and installation of high-quality aluminium bi-folding doors in white or RAL colours.

Security & Hardware

• Repair and replacement of door handles, euro-cylinders, multipoint door locks, overhead door closers, pad handles, letterboxes, hinges, window locking mechanisms, and more.
• Upgrade your door security with more secure euro-cylinders, achieving a 1-star or 3-star rating based on the latest British Standards.

Additional Services

• Energy efficiency upgrades for existing windows and doors.
• Change out-of-date window toplights or leaded glass.

Contact Us Today

For a free, no-obligation quote and personalized consultation, get in touch with us today. Call us on 07780 644 007 or 0191 528 8781 or email us at enquiries@gcdoubleglazingandlocks.co.uk. We look forward to hearing from you and exceeding your expectations.