Secondary glazing is increasingly being specified on refurbishment, retrofit and fit-out projects to enhance thermal performance, acoustic comfort and security, while retaining existing windows and supporting net-zero objectives.
In this practical briefing, developed specifically for Main Contractors, we explore how secondary glazing is best planned, priced and delivered. You'll learn what drives cost, how specification decisions affect programme and procurement, and how early coordination can help reduce risk, variations and rework. Using real project examples and case studies, we highlight common commercial, design and site delivery challenges, alongside practical guidance on achieving a smooth installation process. Our aim is to give you greater confidence when pricing, coordinating and delivering secondary glazing packages. The session can be delivered online or in person, either at your office or at Selectaglaze's premises in St Albans. Visitors to our offices can also enjoy a guided factory tour to gain further insight into our bespoke design, manufacture and installation processes. For more information, please visit our factory tour page.Contents:
- What secondary glazing is and why it is increasingly specified
- Commercial considerations and what drives cost
- Specification options and pricing implications
- Common estimating and procurement pitfalls
- Early design coordination and specialist engagement
- Managing interfaces with finishes and adjacent trades
- Site readiness, surveying and installation best practice
- Programme planning and sequencing
- Project case studies and key delivery lessons





| Length | 45 mins plus Q&A |
| Material Type | In-person or online |
“Very impressed with the presenter Nicholas Dabney, probably one of the most coherent CPDs I have attended. Very knowledgeable and knew how to keep the listener engaged”
“The Q&A at the end which was more tailored to our focus on historic buildings. The presenter was very knowledgeable and gave practical and commercial advice.”
“Its comprehensiveness on the majority of considerations when specifying secondary glazing including fixing details. The use of videos was very good. The diagrams were easy to read. The verbal delivery was engaging and very clear.”
“Seeing the detailed drawings was great. The videos were also helpful. It was all very clearly laid out and explained, and the level of detail seemed right for the amount of time available.”
“Great presentation and slideshow/videos”
Interested? Book a CPD
Select your preferred CPD date with our quick and easy booking form
More CPDs

Seminar 2: Window protection through secondary glazing systems
We place particular emphasis on Heritage and Listed buildings, and explore the impact of Martyn’s Law.

Seminar and factory tour package
Go behind the scenes and discover the benefits, design and manufacture of bespoke secondary glazing.