500 Skylight Panels and the Job That Was Never Just Asbestos Removal

It Was Never Just an Asbestos Job

The enquiry sounded straightforward.

“We’ve identified asbestos in the glazing tape beneath approximately 500 skylight panels and need the site decontaminated.”

Simple enough.

Until you understand what that actually means.

The asbestos isn’t sitting exposed on the roof. It’s hidden beneath every individual pane of glass. And before you can remove the asbestos, you first have to remove the glass.

Five hundred times.

What Is Glazing Tape?

Commercial skylights are built from individual glass panels supported within aluminium or steel glazing bars.

Between the glass and the frame sits a glazing compound or tape designed to cushion the glass, seal against water and accommodate movement.

In many buildings constructed before 1990, that compound commonly contains chrysotile (white) asbestos. The material is generally bonded and non-friable, placing it within the scope of a Class B asbestos removal licence.

That doesn’t make the work simple.

It simply changes how the risk is managed.

The Number That Changes Everything

When most people hear “asbestos glazing tape”, they picture removing a strip of sealant.

The reality is very different.

Each panel has to be accessed safely at height, lifted carefully from its frame without damaging the glass, the asbestos-containing compound stripped from the rebate, the frame cleaned, the waste packaged and tracked, and the panel managed for reinstatement.

Then the process repeats.

Again.

And again.

Five hundred panels.

The quantity of asbestos isn’t what defines the project. The access, handling and labour do.

The Question That Changes the Scope

One of the first questions we ask isn’t about asbestos.

It’s about the glass.

Once the panels are removed — who is putting them back?

If the building owner expects the skylight to remain weatherproof and operational, reinstatement becomes a separate construction activity requiring a glazing contractor. HazWreck specialises in licensed asbestos removal, demolition and site decontamination. We’re not glaziers. That boundary must be clearly defined before contracts are signed.

Sometimes reinstatement forms part of a larger refurbishment. Sometimes it’s coordinated separately. Either approach works.

Assuming the answer does not.

What We Need Before Pricing

Jobs like this can’t be priced accurately from a single sentence in an email.

We need the complete survey report — including laboratory analysis confirming the asbestos type and condition, not simply a note stating “asbestos present.” We need to understand the access: whether the skylight can be reached safely from above, whether scaffold or EWPs are required, and whether the roof is trafficable. We need to know whether the building will remain occupied during works, because occupied buildings introduce additional planning around exclusion zones, communication and site management. And we need reinstatement clearly defined — whether glazing will be reinstated, and if so, by whom — before a proposal is prepared.

Each of those questions shapes the methodology, the programme and the cost. Miss one and the price is built on an assumption that will catch up with the project later.

What Actually Drives the Cost?

Many people assume the asbestos determines the price.

In reality, access often has a far greater influence. Working safely at height, managing hundreds of fragile glass panels, temporary access systems, containment, labour and compliance documentation — these are the factors that shape the project.

The asbestos removal itself is only one part of a much larger operation.

Lessons From This Project

1. Scope matters more than first impressions. What sounds like an asbestos removal project may actually involve glazing, access systems, structural planning and multiple specialist trades.

2. Access usually costs more than the asbestos. Height safety, fragile surfaces and glass handling frequently become the primary cost drivers on jobs like this.

3. Define the boundaries early. Understanding who is responsible for reinstatement protects both the contractor and the client. It should be confirmed before contracts are signed, not resolved after the glass comes out.

4. Good pricing starts with good information. Accurate proposals depend on quality surveys, access information and a clearly defined scope — not assumptions.

Planning a Complex Asbestos Removal?

Large commercial asbestos projects are rarely what they look like in the first email.

Call us before you start requesting quotes — the scope conversation is where the real value is. Getting the methodology right before pricing begins is what separates a project that runs clean from one that doesn’t.