If your double glazing in Ballymena is no longer performing as it should, C2 Repairs offer a reliable and cost-effective solution. We specialise in repairing uPVC windows and doors that have become draughty, misted, stiff to operate, or difficult to secure.
With more than 10 years’ experience, our approach focuses on repairing and upgrading existing units rather than pushing unnecessary replacements. This allows homeowners in Ballymena to extend the life of their windows and doors while improving insulation, security, and ease of use.
All work is carried out with care, and we only replace components that are genuinely required. Every repair includes a free quote and a 2-year workmanship warranty.

We remove fogged or condensation-filled glass and install new sealed units to restore clarity and thermal performance.

Old or perished rubbers are replaced to improve weather resistance and reduce external noise.

We identify gaps around frames and sashes, replacing worn seals and adjusting fittings to prevent heat loss and cold air ingress.

Windows that are stuck or locked shut are safely opened and returned to full working order.

Windows and doors are realigned to ensure correct closing, locking and sealing.

We replace worn hinges, faulty handles and damaged locks to restore smooth operation and reliable security.
Our double glazing repair service covers Ballymena and nearby areas including Galgorm, Broughshane, Ahoghill, Cullybackey, Kells and surrounding locations. If you’re based near Ballymena and need expert repairs, we’re happy to help.
Frequently Asked Questions (FAQs)
No. In most cases, only the glass unit needs replaced, not the entire window frame.
This is often caused by worn hinges, failed mechanisms, or dropped sashes. These issues can usually be repaired.
Yes. Draughts are commonly caused by worn seals or poor alignment, both of which we regularly correct.
Many repairs are completed within a single visit, depending on the issue and parts required.
Yes. All repairs are covered by a 2-year warranty for peace of mind.
Yes. We regularly repair older uPVC windows and doors, even those that are no longer manufactured.
What Our Customers Say
We take pride in providing honest, high-quality uPVC window and door repairs across Northern Ireland — and our customers agree. With over 400 happy clients and 600+ projects completed, our reviews speak for themselves. Here’s what real homeowners have to say about working with C2 Repairs.
If you need repairs for your UPVC windows and doors, we can help. Our team of experts can provide a free quote for any repairs you may need. Whether it's a broken lock, a faulty handle, or a damaged seal, we have the skills and experience to get your UPVC windows and doors back in top condition. Contact us today to arrange a free quote and get your repairs underway.