Pre-Assembled Door Sets

Internal, Fire Rated & PAS24


Faster to fit
Factory prepared
Internal, fire rated & PAS24 options

The smarter way to buy doors. Supplied as complete, factory-prepared door sets for faster fitting, cleaner finishes and greater consistency across your home, flat development or commercial project.

  • 1,104 Trustpilot reviews
  • Nationwide delivery and specialist support
  • Wide pre-assembled range
  • Internal, PAS24 and FD60 categories available

Why Pre-Assembled Door Sets

01

Faster fitting

Many internal door sets can be fitted dramatically faster than traditional door-only installations, reducing time on site and helping projects move quicker.

02

One complete package

Door, frame, hinges, latch or lock, seals and specified hardware are selected to work together.

03

Less risk on site

Reduced on-site machining means fewer alignment issues, fewer squeaks, fewer remedial fixes and fewer costly call-backs.

04

More consistent finish

Ideal for full-house renovations, apartments and multi-door projects where consistency matters.

05

Better for homeowners and trades

Homeowners get a cleaner result. Trades get a more predictable install with less wasted labour.

Deanta Oak Malmo Door Pre-Finished FSC Internal door

Shop Pre-Assembled Door Sets by Type

Deanta Oak Augusta Glazed Fire Door

Internal Pre-Assembled Door Sets

Ideal for full house renovations, extensions, developer plots and anyone who wants a faster, more consistent installation. Choose from a wide range of styles, finishes and glazing options to suit modern and traditional interiors.

Browse Internal Door Sets
Fire Rated Door Sets (FD30 / FD60)

Fire Rated Door Sets (FD30 / FD60)

Factory-assembled fire door sets available with FD30 and FD60 options, supplied with compatible frames and seals where specified. Designed for projects where fire performance, specification control and visual consistency all matter.

Browse Fire Rated Door Sets
Deanta Dark Grey Ash Montreal Fire Internal door

PAS24 Security Door Sets

PAS24 door sets designed for apartment entrances and high-security internal doors, combining fire, security and acoustic performance where specified. A strong choice for flats, multi-occupancy buildings and projects that need tested, compliant solutions.

Browse PAS24 Door Sets

Door Only vs Pre-Assembled Door Set

Traditional approach

Door only

  • Buy door leaf
  • Buy frame separately
  • Source hinges, latch/lock, seals, hardware
  • Measure and machine on site
  • More labour time
  • More chance of rework
Recommended

Modern approach

Pre-Assembled Door Set

  • One coordinated product
  • Frame and machining prepared
  • Faster install
  • Lower fitting risk
  • Cleaner, more repeatable finish

Choose the Right Door Set for Your Project

For Homeowners

Upgrade internal doors with a neater finish and less disruption during fitting.

For Developers

Create a consistent specification across plots while reducing site labour and snagging risk.

For Apartment Blocks

Choose PAS24 and fire-rated options for entrance and communal applications where required.

For Renovation Projects

Speed up installation and simplify ordering with one coordinated package.

Certification and Compliance

Some pre-assembled door sets are independently tested and certified by the manufacturer to relevant fire and security standards, including selected FD30, FD60 and PAS 24 configurations. Where acoustic performance is specified, this may also be supported by manufacturer testing for the relevant set.

Always check the exact certification and specification for the individual product you are buying. Final suitability should be confirmed with your installer, architect or building control team to ensure the selected door set meets the needs of your project.

How Our Pre-Assembled Door Sets Work

From spec to fit in four steps

Step 1Choose your style

Choose your style

Select the finish, design and performance level for your project.

Step 2Match the right specification

Match the right specification

Internal, fire rated or PAS24, with compatible frame and components.

Step 3Receive a coordinated doorset

Receive a coordinated doorset

Prepared to reduce on-site work and simplify installation.

Step 4Fit with confidence

Fit with confidence

A cleaner, more predictable result compared with buying door-only components separately.

Door Sets Used in Real Projects

Apartment Development, 150 Flats
DeveloperMulti-occupancy

Apartment Development, 150 Flats

£150,000

PAS 24 entrance + internal pre-assembled sets

Achieved:

Faster install, consistent finish, reduced snagging, easier specification control

To support consistent specification across units, reduce on-site fitting time and help keep the finishing standard uniform across the project.

Discuss a similar project
Whole House Renovation
Renovation

Whole House Renovation

£8,500

Internal oak pre-assembled door sets

Achieved:

Faster install, consistent finish, reduced snagging, easier specification control

To speed up fitting, simplify ordering and deliver a consistent finish across every room.

Discuss a similar project
Care accommodation project
ResidentialMulti-occupancy

Care accommodation project

£42,000

FD30 and FD60 fire-rated door sets

Achieved:

Faster install, consistent finish, reduced snagging, easier specification control

To align performance requirements with a cleaner installation process and a more controlled finish.

Discuss a similar project

Why Door Supplies Online

1,104

Trustpilot reviews

Public review volume with recurring praise for delivery, product quality, service and staff.

Trusted brands plus in-house joinery

Trusted brands plus in-house joinery

Four specialist manufacturers plus on-site joinery capability.

377

Extensive pre-assembled range

One of the UK's widest live collections.

Norwich

Specialist team

Mon to Fri on phone and email

Need help choosing the right door set?

Our specialist team can help you choose the right internal, fire rated or PAS24 option for your property or project.

Request a Quote

Tell us about your project

Share a few details and our Norwich-based team will get back to you within one working day. Whether you're fitting one door or a hundred, we can help you spec the right pre-assembled set.

  • Reply within one working day
  • No obligation, just real advice from our Norwich team
  • Quotes for one door set or full multi-unit projects

Prefer to talk? Call us on 01603 622261 Mon to Fri.

  • Homeowner
  • Developer
  • Apartment blocks
  • Renovation project
  • Commercial / Other
  • 1-5
  • 6-20
  • 21-50
  • 50+
  • Not sure yet
  • ASAP
  • Within 1 month
  • 1-3 months
  • Planning ahead
Door type of interest

We reply within one working day. No obligation.

Frequently Asked Questions

A typical pre-assembled door set includes the door, frame, hinges, latch or lock preparation and other specified components. Exact contents vary by product.

Yes. Because the door comes pre-hung in the frame with hinges and hardware fitted, install times are significantly reduced compared to building a frame from scratch.

A door-only product is just the door slab. A door set is a coordinated package that includes the door, frame, hinges and other components ready to install.

Yes, we supply fire-rated door sets in FD30 and FD60 specifications, fully tested and certified to current standards.

Yes, our PAS24 door sets are tested and certified for enhanced security, suitable for entrance and communal applications.

Absolutely. Our door sets are widely used in new builds, apartment blocks and larger developments where consistency and quick install matter.

All certified products, including fire-rated and PAS24 sets, come with full supporting documentation. Standard sets include manufacturing specifications.

Yes. Our team can help you select the right doorset based on project requirements, building regulations and aesthetic preferences. Get in touch for a consultation.

Pre-assembled door sets

Ready to order

Pre-assembled door sets

The smart way to buy doors when you want a faster, neater and more reliable result. Instead of ordering a door leaf and relying on more time-consuming site joinery, a pre-assembled doorset arrives as a coordinated package with the frame, machining and key components already prepared. That means less time on site, less room for fitting error, and a more consistent finish across every door in the property.