An integral garage fire door is the door between a house and a garage built into it. In England, Approved Document B expects this door to be an E30Sa (FD30S) fire door, and building control will normally expect it to be self-closing, because garages can hold fuel, vehicles and stored materials.

Why the garage door matters
Fires that start in garages can grow quickly and fill a hallway with smoke. The door between the garage and the house is the barrier that buys time for everyone inside to get out. It is one of the few doors inside a home that is expected to be both fire-rated and self-closing, and it often has a step or threshold that needs careful detailing.
When you might need a new garage door
The usual triggers are building control flagging the door during a conversion or extension, a house sale survey raising it, or the discovery that the original door has been swapped for a standard internal door. Some garage conversions remove the need altogether; others create new requirements. Our guide to fire doors in houses explains when they are needed.
What we fit
We fit a certified FD30S doorset or leaf with intumescent and smoke seals, a self-closer set to close and latch the door without slamming, and a threshold detail that keeps the smoke seal effective. We can match the style of your other internal doors where the certified range allows.
Specification at a glance
- Typical rating
- FD30S / E30Sa
- Closer
- Expected; set to close and latch
- Seals
- Intumescent plus smoke seal
- Threshold
- Detailed to keep the smoke seal working
- Styles
- Flush or panelled within certification
- Paperwork
- Product and certificate details
What's included
- Survey of the opening, threshold and step
- Certified FD30S door or doorset
- Self-closer set gently but positively
- Intumescent and smoke seals
- Threshold detailing for smoke control
- Product details for building control or your solicitor
How the installation runs
- Visit to measure the opening and check the frame
- Agree door style and finish
- Order certified door or doorset
- Fit door, seals and closer
- Adjust threshold and latching
- Leave product information for your records
How much does it cost?
£550 – £1,100 ex VAT
£550–£1,100 supplied and fitted, depending on whether the frame is replaced, ex VAT. These are guide figures; your price is fixed after a free survey. See all guide prices or try the guide-price tool.
Questions about integral garage fire doors
Does my garage door need to be a fire door?
If the garage is integral to the house, Approved Document B in England expects the connecting door to be a fire door with smoke control. Requirements in Wales, Scotland and Northern Ireland are similar in purpose but set out in their own guidance.
Does the garage door need a closer?
Building control will normally expect the door between an integral garage and the house to be self-closing. We fit closers that shut and latch the door gently.
Can it match my other doors?
Often, yes. Many certified ranges include panelled and flush styles in finishes that blend with standard internal doors.
Will building control accept the door?
We supply certified products and leave product and certificate details so your building control body or solicitor can see what was fitted. The final decision is theirs.
