Intumescent Strips

Blonde Oak Curved Door Lining in Situ

Blonde Oak Doors

White Doors

Acoustic internal door in oak finish with 33dB rating - Oak Ely Untreated in Situ

Soundproof Doors

Walnut Pamplona FD30 fire door in modern hallway

Walnut Doors

Ravenna Black Solid FD30 Fire Door with reeded panel design installed in a modern interior setting

Black Fire Doors

Black Soho Clear Glass internal door

Black Internal Doors

CATEGORIES

Order By

FIRE RATING

GLAZING TYPE

Colour

Finish

Brand

Size

Product Type

CATEGORIES

Order By

FIRE RATING

GLAZING TYPE

Colour

Finish

Brand

Size

Product Type

Essential Fire Door Protection

Our Intumescent Strips are a simple but vital addition to any fire door installation. Designed to expand when exposed to intense heat, they help block the spread of smoke and flames, giving occupants valuable extra time to escape and protecting property from further damage.

Whether you’re fitting new fire doors or upgrading existing ones, these strips are an essential part of meeting UK fire safety regulations and ensuring your doors achieve their certified FD30 or FD60 performance.


How Intumescent Strips Work

When exposed to high temperatures, intumescent material rapidly swells to many times its original size. This expansion seals the gap between the door and frame, creating a barrier that slows down fire and smoke penetration.

Key benefits:

  • Critical for compliance with UK fire safety standards.

  • Rapid expansion under heat to block flames and smoke.

  • Suitable for FD30 and FD60 fire doors.

  • Easy to fit in new installations or as a retrofit upgrade.

  • Available in a range of sizes and finishes to suit your door type.

Complete Your Fire Door Installation

To achieve full certification and optimum performance, pair your intumescent strips with Fire Door Seals and a high-quality Fire Door. This ensures your installation not only meets legal requirements but also offers complete peace of mind for years to come.

We also recommend Fire Door Frames for a compliant and durable finish.

Supplying Intumescent Strips Across the North West & UK

Based in Halifax, West Yorkshire, Doorphoria supplies fire safety products to customers across the North West, including Manchester, Leeds, Liverpool, and beyond. Our nationwide delivery service covers the whole of mainland UK, ensuring you get the fire protection products you need quickly and reliably, wherever your project is located.

FAQs

Q1: What do intumescent strips do?
They expand under heat to seal the gap between the door and frame, slowing fire and smoke spread.

Q2: Are they required by law?
Yes, to meet UK fire door regulations, FD-rated doors must have intumescent seals or strips.

Q3: Can I retrofit them to existing fire doors?
Yes, they can be fitted to both new and existing fire-rated doors.

Q4: What fire ratings are they suitable for?
They can be used with FD30 and FD60 certified fire doors.

Q5: Do they come in different sizes?
Yes, they are available in various widths and thicknesses to suit your door specification.

Q6: Can I install them myself?
A competent DIYer can fit them, but for compliance and safety, professional installation is recommended.

Q7: Do they need replacing over time?
Check regularly for damage — replace if worn or if the door/frame is altered.