Fire Doors & Emergency Exits
Firestop and Expansion Joint Sealing in Bangladesh
Firestopping seals the gaps where cables, pipes and ducts pass through fire-rated walls and floors, and where building sections meet at joints. Without it, fire and smoke travel through those holes and bypass the compartment. Any building with fire-rated walls, shafts or protected stairs needs every penetration sealed with a tested system.
Quick facts
- Standards
- UL 1479 or ASTM E814, UL 2079, EN 1366-3, EN 1366-4, NFPA 101
- Who needs it
- Buildings with fire-rated walls, floors, risers, shafts and building joints
- What you get
- Compartments that actually hold, with every seal identified and recorded
- Equipment
- Hilti and similar sealants, collars, wraps, mortar, boards and joint systems
Scope
What’s included.
Everything below is done by our own engineers and installation team, so one company answers for the result.
- Penetration survey of fire walls and floors
- Cable tray and cable bundle seals
- Collars or wraps for plastic pipes
- Sealant systems for metal pipes
- Duct and damper opening sealing
- Fire-rated expansion and perimeter joints
- Labeling of every seal
- Seal register with photos and tested system references
Why does each opening need a tested system?
A firestop is only rated in the configuration it was tested in. A tested system specifies the wall or floor type, the penetrating item and its size, the gap around it and the product with its depth. A plastic drain pipe needs an intumescent collar that crushes the pipe as it softens. A steel pipe needs a sealant that copes with conducted heat. A cable tray needs a product that allows future cables to be added.
Filling holes with ordinary foam or cement mortar may look sealed but has no tested rating. Where a site condition matches no tested system, the manufacturer can issue an engineering judgment for that detail, which we keep in the seal register with the photos.
What about expansion joints?
Buildings move with heat, settlement and earthquakes, and BNBC 2020 places much of Bangladesh in active seismic zones. Large factories and towers are built as separate blocks with joints between them. Those joints often pass through fire walls and floors, leaving a continuous gap from one compartment to the next.
A fire-rated joint system closes that gap while still allowing movement. It must be tested for the joint width and movement expected, under standards such as UL 2079 or EN 1366-4. The same applies to the gap between a floor slab and a glass or cladding facade, where fire can otherwise climb from one floor to the next behind the wall.
Why are seals labeled and recorded?
Because firestopping gets broken every time someone adds a cable. An electrician pulls one new cable through a sealed tray and leaves a hole. Labels at each seal tell anyone working there that the opening is fire-rated and who to call.
Our seal register lists each seal with its location, photo and the tested system used. Auditors can check it, and your maintenance team can see where new services have broken a seal. A short walk through risers and electrical rooms against the register, done as part of routine maintenance, catches most broken seals before an auditor finds them.
How it’s done
How we deliver it, step by step.
- 01
Survey penetrations
We trace fire walls and floors on drawings and find every opening, joint and service passing through.
- 02
Match tested systems
Each opening is matched to a tested firestop detail for its wall, penetrant and gap.
- 03
Install and inspect
Our team installs each seal to the detail, checking depth, coverage and annular space.
- 04
Label and register
Every seal is labeled, photographed and entered in the register handed over to you.
Price guide
What sets the price.
Every site is different, so we price from a survey, not a rate card. These are the factors that move the number, and the written quote shows each one.
- Number and size of penetrations
- Mix of cables, metal pipes, plastic pipes and ducts
- Length and width of expansion joints
- Access in risers, ceilings and live areas
- Removal of non-compliant fills before sealing
Service areas
Firestop & expansion joints in Chattogram, Dhaka, Gazipur and Narayanganj.
Our engineers survey, install and maintain on site across these cities and the industrial zones around them. For a site elsewhere in Bangladesh, ask and we will tell you plainly whether we can cover it.
- Chattogram
- Dhaka
- Gazipur
- Narayanganj
Frequently asked questions
It depends on how many openings there are, what passes through them, their size and how hard they are to reach. Plastic pipe collars and joint systems cost more than simple sealant seals. Removing old foam or mortar fills adds labor. We survey first and quote per seal type.
Yes. Unsealed cable and pipe penetrations through fire-rated walls, risers and stair enclosures are a frequent finding, especially in electrical and riser rooms. Auditors look for seals that match a tested system and are intact, so labels and a seal register make inspections much quicker.
Only a foam product that has been tested and listed as part of a firestop system for that exact application. Ordinary construction foam burns and has no fire rating. The product's tested system documents show what it may be used for.
The seal must be restored. Some cable tray systems allow cables to be pushed through and resealed easily. Others need the product cut out and replaced. Either way, the person adding cables should record the work, which is why we label seals and keep a register.
Know your building is safe. Book in 60 seconds.
Tell us what you need and where. An engineer confirms your survey slot by phone or WhatsApp.
What happens next
- 1
We call or WhatsApp you to confirm a time.
- 2
An engineer visits and assesses your fire, electrical and security risks.
- 3
You get a written recommendation and quote. No charge, no obligation.
Your details stay private. No newsletters, no sales sequences.