Windows discussions and local services.
Discussion options
What should a quote for interior secondary glazing include?
For street noise, I’d want to compare the installed cost of an interior secondary-glazing panel with full-window replacement, especially when the existing frame might be kept. But I wouldn’t assume the panel is automatically cheaper or that either option will make every kind of traffic noise noticeably quieter.
What should the estimate separate out for panel fabrication, fitting, and installation? I’d also want the expected noise reduction tied to the particular window and noise source, rather than a general claim about soundproofing. Could the condition of the existing frame or an unusual opening shape materially change the scope and cost?
Join the conversation
Share your experience or ask a follow-up question.
2 replies
- Since the existing frame may be kept, ask for any repairs or reinforcement to be priced separately from the panel and fitting. If the frame can’t support a stable fixing, that extra work - or replacing the frame - could change the installed-cost comparison with full-window replacement.
For the noise-reduction claim, ask what acoustic rating is tested or predicted for the complete proposed panel-and-window assembly, and what installation conditions that figure assumes. A panel-only or generic soundproofing rating may not reflect the result with this window and its perimeter seals.