Secondary Glazing Maintenance & Repairs London
Professional maintenance and repair services for all secondary glazing systems. Keep your installation performing at its best with our expert aftercare.
Expert Aftercare for Your Investment
Secondary glazing is a significant investment in your property's comfort and value. Like any precision product, regular maintenance ensures optimal long-term acoustic performance of secondary glazing and extends the lifespan of your installation. Worn gaskets and seals are the leading cause of dB performance loss—see our measured noise reduction benefits of secondary glazing guide for the science.
Our experienced technicians service all makes and models of secondary glazing, not just our own installations. Whether you need routine maintenance, emergency repairs, or want to upgrade existing systems, we provide prompt, professional service across London.
We carry a comprehensive stock of replacement parts including seals, hardware, and glass panels. Most repairs can be completed in a single visit, minimising disruption to your home or business.
For installations covered by our warranty, we provide priority service and support. Our warranty — 10 years as standard, 25 years on premium and heritage packages — covers both materials and workmanship, giving you complete peace of mind.
Our Services
Comprehensive maintenance and repair solutions
Annual Maintenance
Comprehensive annual service including seal checks, hardware lubrication, and performance testing.
Seal Replacement
Worn or damaged seals replaced to restore acoustic and thermal performance.
Glass Replacement
Damaged or misted glass panels replaced with matching specifications.
Hardware Servicing
Hinges, locks, and handles adjusted, repaired, or replaced as needed.
Common Issues We Fix
Experienced solutions for typical secondary glazing problems
Condensation Between Panes
Indicates seal failure. We replace seals or the affected panel to restore performance.
Stiff or Stuck Panels
Usually caused by dirty tracks or worn hardware. Cleaning and adjustment typically resolves this.
Reduced Noise Reduction
Often due to perished seals. Seal replacement restores original acoustic performance.
Draughts Around Frames
Indicates gaps or seal degradation. We reseal and adjust for airtight fit.
Maintenance Plans
Choose the level of care that suits your needs
Premium
- Everything in Essential
- Priority booking
- 10% parts discount
- Annual report
Complete Care
- Everything in Premium
- Two visits per year
- Minor repairs included
- Warranty support (10–25 years)
Emergency Repairs
Broken glass? Stuck panels? Security concerns? We offer fast-response emergency repairs across London. Call our emergency line for same-day or next-day service.
0207 060 1572Noise Creeping Back? We'll Fix It Free If Under Warranty
Schedule a free inspection — if repairs are needed, we'll credit £350 towards the work.
Related services, performance benefits & cost guidance
Deepen your research with our specialist resources — each link goes to a single, focused article so you can compare specifications, benefits and pricing in detail.
- Why well-maintained secondary glazing keeps delivering 40–54dB reduction
How seals, gaskets and frame alignment determine real-world acoustic performance over time.
- Residential secondary glazing installation we maintain
The systems we service — horizontal sliders, vertical sliders, lift-outs and casements.
- Cost & pricing guide — servicing, gasket replacement and re-glazing
Transparent rates for routine maintenance, emergency call-outs and pane replacements.
- Keeping sash-window secondary glazing acoustically tight
The most common failure modes on heritage installations and how we resolve them.
- When upgrading to 10.8mm acoustic glass beats repair
How to decide between re-glazing in the same spec and stepping up to a higher Rw laminate.
- Acoustic science: why a single failed gasket drops Rw by 6–8 dB
The physics of flanking transmission and why maintenance matters more than people assume.
Frequently Asked Questions
Long-tail answers on servicing, re-glazing, gasket replacement and acoustic performance restoration for existing secondary glazing in London.