5 Best External Steel Door Companies for UK Homeowners

Steel front doors are a different buying decision from composite or timber. They cost more upfront, they last twice as long, and they’re the only material that lets you tick PAS 24, LPS 1175, and Secured by Design on the same product. For homeowners thinking about a 15-to-20-year horizon rather than a short-term refresh, the maths usually works in steel’s favour.

This list is the five UK steel door companies worth shortlisting today if you’re a homeowner upgrading your front, back, or side entrance. We’ve ranked them by the breadth of what they do well, not by who shouts loudest in their marketing. We don’t get a commission on any of them.

How We Evaluated?

We assessed each company on five things specific to homeowner work: certification depth (PAS 24 baseline, with LPS 1175 and Secured by Design as upgrades), aesthetic range (RAL colours, panel designs, glazing options), supply and installation experience (in-house install versus subcontractor versus DIY-friendly), warranty terms expressed in years, and price transparency on the website.

Certifications were verified against the LPCB Red Book and the Secured by Design member directory.

Quick-pick Summary

The shortlist at a glance. Full reviews follow below.

Manufacturer	Best for	Why homeowners pick them
Latham’s Steel Doors	Front, back, and side entrances	Widest UK range with 12-year warranty
RKDoors	Premium front entrances	Fully bespoke with decorative finishes
First Impression Security Doors	High-security upgrades	Strong on post-burglary replacement
Vufold	Glazed and bi-fold external doors	Steel-and-glass garden entrances
Trade Door Supplies	Budget-friendly stock doors	Pre-fitted residential steel doors

The Full List

1. Latham’s Steel Doors

The UK’s leading manufacturer of external steel doors for homeowners, with the widest range and the longest warranty on the list.

Latham’s is the only company on this list that manufactures the full functional range in-house: PAS 24-rated residential security doors for the front entrance, fire-rated back doors for properties with attached garages, glazed and louvred variants for side entrances, and thermal options for energy performance.

Certifications cover PAS 24 (Building Regulations Part Q), LPS 1175 SR2 to SR4 (commercial-grade security applied to homes that want it), and Secured by Design (the UK police-backed standard insurers recognise).

The HOOPLY 19-point locking system is proprietary and not available from any other UK manufacturer, and the 12-year warranty covers the full doorset rather than just the leaf. Stock doors ship quickly; bespoke sizing carries no lead-time penalty.

The downside: The range is so wide that homeowners arriving cold can find the choice overwhelming. Knowing whether you want PAS 24, LPS 1175 SR2, or fire-rated upfront makes the buying process faster.

2. RK Doors

Strong premium choice for homeowners wanting a fully bespoke steel front door with decorative finishes and high-end hardware.

RKDoors specialises in made-to-measure steel entrance doors with a focus on aesthetic detailing: panel patterns, decorative glazing, polished or brushed hardware finishes, and a wider RAL colour selection than most steel competitors offer.

PAS 24 certification covers the security side. Useful for homeowners renovating period properties where the steel door has to look at home alongside original architectural features rather than declaring itself as a security upgrade.

The downside: Bespoke pricing reflects the customisation. For homeowners on standard openings happy with a powder-coated finish in a popular RAL colour, the price gap over a Latham’s stock door isn’t always justified by the aesthetic.

3. First Impression Security Doors

Strong choice for homeowners replacing a door after a burglary or attempted break-in, where security takes priority over kerb appeal.

First Impression Security Doors focuses specifically on high-security steel doors for residential properties, with LPS 1175 SR2 certification on multiple lines and a sales process geared to homeowners working with insurance assessors or victim support.

The hardware specification leans heavy: multi-point locking, anti-pry strips, anti-drill cylinders, internal hinge bolts. Useful when the brief is led by what the door has to resist rather than how it looks.

The downside: Aesthetic options narrower than Latham’s or RKDoors. The product looks like what it is: a security door. Homeowners wanting the security without the visible signal of paranoia get more options elsewhere.

4. Vufold

Best for homeowners specifying glazed external doors at side, garden, or rear entrances.

Vufold’s external door range extends across glazed bi-fold, sliding, and French door configurations, with steel-framed options for the structural strength needed at wider openings. PAS 24 certification on the security-rated lines.

Useful for homeowners extending the back of the house and wanting steel-framed glass doors to the garden rather than the standard aluminium or composite alternatives. Strong customer-facing online experience: configurator, finance options, and clear lead times.

The downside: Range is glazing-led. For solid steel front doors, Vufold is the wrong starting point; the security-rated solid doors are competent but aren’t where the company specialises.

5. Trade Door Supplies

Useful for homeowners on tight budgets wanting a basic PAS 24-rated steel door for a back or side entrance.

Trade Door Supplies stocks pre-fitted residential steel doors at the budget end of the category, with PAS 24-rated configurations available from stock.

The product specification meets baseline Part Q requirements for new-build and replacement work; the hardware spec is functional rather than premium. Useful when the brief is replacing a back or side door on a tight budget without compromising on Building Regulations compliance.

The downside: Lower specification across hardware grade, finish coverage, and warranty length. The product passes Part Q but won’t match the lifecycle performance of the higher-spec competitors on this list. Front entrance is usually worth the upgrade.

What Homeowners Should Look for in a Steel Door?

PAS 24 As the Minimum

PAS 24 is the UK security standard cited in Building Regulations Part Q for new-build homes. Any external door installed today should meet it. If a company can’t show you the certificate of conformity, that’s the first warning sign.

Secured by Design for Insurance Recognition

Secured by Design is the UK police-backed accreditation scheme. Home insurance providers recognise it, and on some policies it earns a small premium reduction. Verify membership on the official Secured by Design member directory rather than taking the manufacturer’s word for it.

LPS 1175 if You’ve Had a Break-in

LPS 1175 is the higher-spec commercial security standard. For homeowners replacing a door after a break-in, an SR2 or SR3 rated steel door provides genuine forced-entry resistance well beyond what PAS 24 tests for.

Warranty Terms in Years

A 12-year warranty covering the full doorset is the longest on this list. Most competitors offer 5 to 10 years; some cover only the leaf and exclude frame, hardware, and finish. Read the small print.

Powder-coat Finish Quality

Steel doors live outside, exposed to UK weather for two decades or more. A quality powder-coat finish with at least 80 microns coverage on 1.5mm zintec steel will resist coastal corrosion and weather cycles for the warranty period. Cheaper finishes chip and fade inside five years.

Final Thoughts

For most UK homeowners, Latham’s gives the best balance: PAS 24 as standard, LPS 1175 and Secured by Design available, the HOOPLY 19-point locking system, and a 12-year warranty covering the full doorset.

For premium front entrances with decorative finishes, RKDoors. For post-burglary security upgrades, First Impression. For glazed garden and side doors, Vufold. For budget back-door replacements, Trade Door Supplies.

Three things to verify before placing an order: PAS 24 certificate of conformity on your specific configuration, Secured by Design membership on the official directory, and warranty length and what it actually covers (full doorset versus leaf only).

Those three checks separate companies that deliver 15-to-20-year value from companies that look cheap on day one and expensive by year seven.