Passive Fire Protection Insulation

Our fire protection insulation services protect your building and the people that live or work within it.


What is Passive Fire Protection Insulation?

Passive fire protection insulation is building insulation that is fire-resistant, non-toxic, and non-combustible. If there is a fire, the insulation will slow its spread, containing it to the building and ensuring people can exit safely.

Many types of fire protection insulation are available, with most materials offering soundproofing and heat retention too.

Our team of experts will supply, deliver, and install the right fire protection insulation for your project. This means you get a custom passive fire protection service tailored to your needs.


What Fire Protection insulation services do we offer?


A sturdy, stable, and heavy-duty insulation material with thermal properties.


High-quality fire resistance and protection that is ideal for industrial and commercial buildings.


A lightweight and flexible insulation material that can be used in a variety of ways.


An innovative range of products with many different applications, helping protect your whole building against fire.`


Why pick us for your fire protection services?

A Professional Service

With over a decade in the fire protection insulation industry, we’re perfectly placed to support your project. From initial enquiry to final handover, we deliver your work on time, to budget, and with complete transparency at every stage.

Skilled Work Across All Industries

We have experience working for commercial, industrial, and domestic organisations. No project is too large or complex for our highly qualified, friendly, and experienced fire protection professionals.

A Tailored Solution for your needs

No two buildings are alike, and we will work with you to ensure you get the best out of your fire protection insulation. We’ll advise which materials are the most cost-effective and which finish will best complement the look and feel of your building.

A one-stop shop for all your insulation requirements

Our experienced team offer a wide range of services. We don’t just provide fire protection insulation services but also acoustic insulation, trace heating, and thermal insulation. No matter what you need, we’re here to provide an environmentally friendly solution that will serve your building in the years to come.

Fire Protection Insulation London

Committed to providing environmentally aware insulation services for our customers



Fire protection insulation can boost fire resistance and slow the spread of a fire. This ensures legal compliance and gives your building residents more time to leave the building.

There are a wide range of different fire protection insulation materials available. The right one for your building depends on your budget, the industry you work in, and your specific building needs. For example, a factory with several machines will need more fire resistance than an office building.

At Theta Insulation, we know that all buildings are different. When we work with you, we’ll thoroughly review your building and determine which type of fire protection insulation is right for your project.

Fire protection insulation isn’t a specific legal requirement. However, as the duty holder or landlord, you are legally obliged to ensure that key parts of your property are fire-resistant to protect building occupants against fires. 

Fire protection insulation is the best way to do this.



Whether you want to find out about our fire protection insulation services or need a quick quote for your project, we’re happy to help. Contact our friendly team today.