Secure three point closure
The twist action mechanism secures the door at three points for a stable fit and improved draught sealing.
Insulated loft access for homes across the UK
Manthorpe GL250-03 Loft Access Door
A clean, practical and insulated drop down loft hatch designed for everyday domestic projects, refurbishments and new build applications.
- Three point closing mechanism
- 50mm EPS insulated lid
- Part L air leakage performance
- Removable drop down door panel
Nationwide focus
Suitable for projects throughout England, Scotland, Wales and Northern Ireland.
Made for modern homes
Designed to combine loft access, insulation and a tidy ceiling finish.
Direct purchase link
Buy online from Building Plastics using the links on this page.
Featured product
Why the GL250-03 is a popular loft hatch choice
The Manthorpe GL250-03 is designed as an unobtrusive alternative to traditional loft access. Its twist action catch secures the lid in three places, while the unique hinge arrangement allows the door to hinge down smoothly or be removed completely when unobstructed access is needed.
For homes where thermal performance and draught resistance matter, the GL250-03 combines a sealed frame with 50mm expanded polystyrene insulation on the back of the lid. The lightly textured white finish suits most interiors and can also be painted to match the room.
Ideal for
- Replacement loft hatches in existing homes
- New build loft access installations
- Refurbishment projects and ceiling upgrades
- Domestic roof space access with a cleaner finish
Key advantages
Designed around access, sealing and ease of use
Insulated lid
50mm expanded polystyrene insulation helps reduce unwanted heat loss through the loft opening.
Part L friendly performance
Draught seals between frame and ceiling, and between frame and door, help the GL250-03 meet Part L air leakage requirements.
Removable door panel
The door can hinge down or be removed completely for improved loft access when more working room is needed.
Easy to blend into interiors
The white textured finish looks tidy in finished ceilings and can be painted to suit surrounding décor.
Compatible with loft ladders
The GL250-03 can also be used with Manthorpe GLL256 and GLL257 loft ladders.
Technical overview
GL250-03 specifications
Product codeGL250-03
Overall size821mm x 656mm
Fitting size562mm x 726mm
Accessible opening size700mm x 530mm
Insulation50mm expanded polystyrene
MaterialHigh impact polystyrene
Manufacturing processInjection moulded
InstallationSingle person installation stated by manufacturer
Airtightness reportBRE report 231 637
Frequently asked questions
Common questions about the GL250-03
What type of loft hatch is the GL250-03?
It is a drop down loft access door with a three point closing mechanism and an insulated back panel.
Can the door be removed from the frame?
Yes. The hinge design allows the door to hinge down or be removed completely for clearer roof space access.
Does it help reduce draughts?
Yes. The product uses seals between the frame and ceiling and between the door and frame to reduce air leakage.
Can I match it to my room colour?
Yes. The white textured finish can be painted to better match surrounding décor.
Where can I buy the GL250-03 online?
You can use the buy buttons on this page to go directly to Building Plastics for the product page and loft hatch category.
Order online
Buy the Manthorpe GL250-03 today
Use the direct product link for quick ordering or browse the wider loft hatch and ladder range at Building Plastics.