The doors were designed to resist fire for 30 minutes.
After more than 59 minutes, the government test was stopped. The doors still had not failed.
The three doorsets had been manufactured by Humphrey & Stretton, a family-owned joinery business in Hoddesdon with more than 65 years of history.
For Scott Humphrey, the third generation of his family to run the business, the result provided powerful independent confirmation of standards the company had spent decades developing.
But it also reveals something most people would never imagine when walking through an ordinary-looking timber door.
A modern fire door is not simply a piece of wood cut to fit an opening. It is a safety-critical product combining traditional craftsmanship with precise specifications, manufacturing data, and computer-controlled machinery.
Humphrey & Stretton’s story is therefore about more than a family company surviving for 65 years. It is about how an old craft became a modern form of precision engineering, without removing the skilled people at its centre.
When 30 Minutes Became 59
The importance of getting that balance right became particularly clear after the Grenfell Tower fire in 2017, when concerns about fire safety and the performance of fire doors became a national issue.
In 2019, the Ministry of Housing, Communities and Local Government requested three FD30 doorsets from Humphrey & Stretton for fire testing. The company’s own records confirm that the test took place on 23 February 2019.
The doors were designed and rated to provide 30 minutes of fire resistance.
They lasted 59 minutes.
The test was then stopped without the doors failing.
As Scott explained during our conversation, the purpose of the government test was to understand how the industry’s products performed, rather than to create an advertising opportunity for an individual manufacturer. That makes the result all the more significant: the doors had been independently tested and had substantially exceeded their rated performance.
Once the results were published, Humphrey & Stretton found that awareness of the company’s capabilities increased.
For a manufacturer whose products can ultimately form part of someone’s protection during a fire, that kind of independent reassurance matters.
It also gives some perspective on what is actually involved in making a fire door.
Three Generations, One Family Business
Humphrey & Stretton was established in 1961 and has remained a family business throughout its history. Today, the company manufactures doors, doorsets, fire doors, timber screens and associated joinery from its premises in Hoddesdon.
Scott Humphrey represents the third generation of his family to work in the business. He became a director of Humphrey & Stretton plc in 2016 and is publicly listed as Finance Director.
That family history is something Scott says he is particularly proud of.
After more than six decades, there is a sense that the business is not simply preserving what previous generations built. It is continuing to adapt. And that adaptation is particularly visible in the factory.
Why a Fire Door Is Precision Engineering Made from Wood
A conventional timber door can be manufactured to a particular size and specification.
A compliant fire door has a much more demanding job.
Its materials, construction and components all have to work together to achieve a specified level of fire resistance. Humphrey & Stretton manufactures doors to a range of fire ratings, including FD30 and FD60, as well as more specialist specifications.
The challenge becomes even greater when the product is bespoke.
Dimensions can vary. Materials and finishes can vary. Vision panels, hardware and other details may need to be incorporated into the design. The finished product still has to meet the relevant specification and certification requirements.
That means there is very little room for “close enough”.
The company describes its manufacturing process as running from raw materials through to final assembly, giving it control over the product rather than simply adapting off-the-shelf components.
And behind that finished timber door is an increasingly sophisticated manufacturing process.
The Modern Workshop Behind the Wood
The workshop Humphrey & Stretton operates today would look very different from the one the business would have had in its early years.
Technology has transformed what is possible.
CAD/CAM allows the company to produce precisely machined components quickly and consistently, while computer-controlled machinery provides the capacity needed to handle larger volumes. The company itself describes the combination as allowing precise machining at speed, while skilled staff carry out work requiring a more delicate touch in the joinery workshop.
For Scott, the importance of that machinery is straightforward. “If we didn’t have the machines, then you wouldn’t be able to hit the capacity that we’ve got.”
But technology hasn’t turned the factory into an entirely automated production line.
In fact, the bespoke nature of the business makes that impossible.
“It’s not a robotic industry,” Scott says.
Every order can be different, and that means people still have to understand what is being produced, check the specification and make decisions when something doesn’t fit a standard process.
The company’s schedulers, for example, review jobs to make sure they meet the customer’s requirements and remain compliant with the relevant fire regulations and certification. As Scott explains, there is still a human decision-making process at the heart of the manufacturing operation.
Technology provides precision and capacity. Experience provides the judgement.
Why Bespoke Capability Still Matters
That combination has become increasingly important as the fire-door market has changed.
Historically, much of Humphrey & Stretton’s work involved large new-build projects, where substantial quantities of doors could be manufactured for an entire development.
That remains an important part of the business. But changes to fire-safety requirements have created a different type of demand too.
Building owners of high-rise residential buildings are now required to arrange regular fire-door inspections, increasing the need to identify and replace individual doors that no longer meet the required standard.
The result is a different pattern of work.
Instead of manufacturing hundreds of doors for a new building, the company might receive an order for a single replacement door because one existing door has failed an inspection.
That sounds like a smaller manufacturing challenge. In some ways, it is the opposite.
A standardised production line works particularly well when every product is the same. A business manufacturing bespoke doors has to retain the ability to deal with variation, whether that means a non-standard size, a particular finish or a specific set of requirements.
That is where skilled people and technology have to work together. The machinery provides repeatable precision. The people make sure that precision is being applied to the right thing.
A Family Craft That Has Evolved
That balance between old and new is perhaps the clearest way to understand Humphrey & Stretton’s 65-year history.
The company still relies on skills that would be recognisable to earlier generations of joiners. But those skills now sit alongside CAD/CAM systems, CNC machinery, manufacturing data and increasingly sophisticated processes.
The business has had to evolve because the industry around it has evolved.
Fire regulations have become more demanding. Customers expect greater consistency. Manufacturing technology continues to develop. And the economics of running a specialist manufacturing business mean there is constant pressure to invest and improve.
Scott sees continued investment in machinery as one of the company’s priorities for the years ahead.
There are limits to how much the current premises can expand, so growth isn’t simply a matter of making the factory bigger. Instead, the focus is on making better use of the space and capabilities already there, maintaining the company’s reputation and continuing to invest in the technology that allows it to remain competitive.
That feels particularly appropriate for a business with such a long history.
The objective isn’t to preserve the past exactly as it was.
It is to preserve what was valuable about it while finding better ways to do the work.
The Technology Behind the Technology
There is one final layer to that story which is easy to overlook.
Modern manufacturing depends on technology well beyond the machines on the factory floor. Systems, communications and the everyday IT infrastructure behind a business all have to work reliably if the operation is going to keep moving.
For Humphrey & Stretton, technology is now embedded throughout the business.
And that means having dependable support when something does go wrong is simply part of keeping the operation running.
Scott’s approach is straightforward: he doesn’t like allowing problems to build up. When something needs attention, he contacts the Tristar team, and he says it gets dealt with.
“They’re a good team, to be fair.”
It’s a small part of the wider story, but an appropriate one.
Because the technology behind modern manufacturing isn’t really separate from the craft anymore. It is part of how the craft is delivered.
And perhaps that is the most interesting thing about Humphrey & Stretton’s 65-year journey.
The company still makes doors from timber.
But what goes into making those doors is now a combination of skilled hands, engineering knowledge, manufacturing data and computer-controlled precision.
The craft hasn’t disappeared. It has evolved.
About Humphrey & Stretton plc
Humphrey & Stretton plc is a family-owned manufacturer based in Hoddesdon, Hertfordshire, with more than 65 years of experience in bespoke joinery and fire-rated doorsets. The company combines skilled craftsmanship with modern manufacturing technology to produce doors, doorsets, screens and associated joinery for a wide range of projects. With a strong focus on quality, compliance and continual investment in its manufacturing capabilities, Humphrey & Stretton has built a reputation for producing high-performance fire doors and bespoke products to demanding specifications.
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Frequently Asked Questions
How long has Humphrey & Stretton been in business? Humphrey & Stretton has been operating for more than 65 years. The family business has grown considerably since its early days while retaining its focus on specialist manufacturing and quality.
What does Humphrey & Stretton manufacture? The company manufactures bespoke timber doors, fire doors, doorsets, screens and associated joinery, including products made to specific project requirements.
What makes Humphrey & Stretton’s fire doors different? Fire safety is central to the company’s manufacturing process. Its products are manufactured to meet specific fire-rating and certification requirements, with jobs checked to ensure they comply with the relevant specifications.
How has Humphrey & Stretton demonstrated the performance of its fire doors? The company’s fire doors have been independently tested in demanding conditions. In February 2019, the Ministry of Housing, Communities and Local Government tested Humphrey & Stretton’s 30-minute doorsets. The test continued for more than 59 minutes without failure before it was stopped. The result provided independent evidence of the performance of the company’s doors and became an important milestone in its history.
What does third-party fire certification mean for customers? IFCC certification provides independent assurance that certified fire-rated products are manufactured in accordance with the test evidence supporting their claimed fire rating. It also helps ensure that important components such as the frame, glass and seals are correctly specified rather than simply combining products that have not been tested together.
