Established in 2018, Knightsmark was born from a conversation between three friends about the vulnerability of the UK property market. We saw a gap between high-end design and high-level security that no one was filling. By combining our backgrounds in Business Management, Engineering, and Design, we created a “triple-threat” approach to protection. We didn’t just want to sell doors; we wanted to engineer a new standard for London living.
Knightsmark is built on more than just industry experience; it is rooted in academic discipline. Our founding team holds University degrees in Business Management, Engineering, and Design—a unique combination of skill sets that allows us to approach security from every angle. This blend of technical engineering, aesthetic vision, and strategic management ensures that every project is handled with a level of professional rigour that is rare in the residential security sector.
While the company was founded in 2018, our team carries a combined 20 years of expertise in the field. We are driven by a restless commitment to innovation, constantly redefining what it means to protect a home or business. We don’t settle for “industry standard”—we use state-of-the-art technology to ensure our products are at the forefront of the security industry.
No standard sizes and no off-the-shelf finishes.
Every door is engineered to your exact specification, meeting the specific needs of homeowners, architects, and developers who refuse to compromise on quality.
Our products are thermally broken to ensure your home stays as warm as it is secure.
Our products are laboratory-tested to the highest European and UK benchmarks to ensure that security never comes at the expense of performance. Our doors are engineered to RC4 (EN 1627–1630) standards, providing bank-grade protection against determined attacks from professional power tools, while our window systems focus on industry-leading durability. Across our entire range, we subject our designs to rigorous “Hot Box” thermal testing, as well as high-velocity wind, water, and air-permeability trials, ensuring that every bespoke installation acts as a total environmental shield. Whether it is achieving superior U-values or high-level acoustic insulation, our engineering is designed to keep the British elements out and the heat in, though specific ratings will vary based on your individual bespoke specification.
We collaborate with homeowners, architects, and developers who refuse to compromise on the delicate balance between aesthetic beauty and total security. From high-end private residences to complex commercial developments, we understand that an entrance is more than just a functional requirement—it is a statement of intent. By working closely with design professionals from the initial consultation to the final installation, we ensure that every project is delivered to an exacting specification, regardless of architectural complexity. Whether we are partnering with independent architects on bespoke renovations or supporting large-scale developers on prestige builds, our goal remains the same: to deliver an impenetrable finish that feels like a natural extension of the home’s design.
Here’s what our customers have to say about their experience with our security doors – from initial consultation to manufacturing to installation.
Interested in high quality security doors? Reach out to us for a consultation and a free quote. We’re here to help you take the first step.
