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Trusted Building Supplies Experts in London
Stemko Group has established itself as a trusted provider of high-quality building solutions, specialising in the supply and installation of commercial doorsets and screens. With over five decades of experience, our company delivers tailored services to clients across the commercial, education, leisure, and healthcare sectors in London and surrounding areas. Our compliance-focused approach ensures all products meet rigorous safety standards, supported by our BM TRADA Q-Mark accreditation for Fire Door Installation. We prioritise client satisfaction through expert consultation, project management, and seamless delivery of bespoke solutions.

Our long-standing reputation is built on partnerships with leading UK contractors and a commitment to innovation in fire safety and infection control. By maintaining transparency and accountability, we provide peace of mind to clients requiring durable, compliant, and aesthetically refined door systems. Our team combines technical expertise with a client-centric ethos, ensuring every project is executed with precision and reliability.
Services
Timber doorsets Steel doorsets Glazed timber screens Infection control solutions Automatic door operators
Highlights and features
  • We have over 50 years of experience in commercial door solutions.
  • Our single-source supply-and-install service guarantees project compliance.
  • We hold BM TRADA Q-Mark accreditation for fire door installation.
  • Our tailored approach meets exacting client specifications across sectors.
  • We collaborate with leading UK contractors on iconic projects.
Associations and certifications
  • BM TRADA Q-Mark
What people say
Excellent service Smooth process Professional No issues Flexible
Services
Timber doorsets
Stemko's timber doorsets combine durability and aesthetic appeal for commercial spaces. Available in standard or bespoke designs, they offer fire resistance up to FD120 and acoustic ratings from Rw 27dB to 43dB. Ideal for healthcare, education, and leisure sectors requiring compliant, long-lasting solutions.
Steel doorsets
Fire-rated steel doorsets provide enhanced security and acoustic performance for commercial buildings. Constructed from corrosion-resistant Zintec/Aluzinc, they feature options for vision panels, louvres, and finishes. Suitable for external use with FD30-FD120 fire ratings and SD2-SD5 security classifications.
Glazed timber screens
Natraglaze glazed timber screens allow natural light transmission while maintaining fire and acoustic integrity. Available in bespoke sizes with FD30-FD60 fire ratings and up to Rw 45dB sound resistance. Ideal for commercial spaces requiring both functionality and visual connectivity.
Infection control solutions
StemGuard antimicrobial coatings offer 99.9% viral/bacterial elimination on door surfaces. Combined with automatic door operators and antimicrobial ironmongery, these solutions reduce infection risks in high-traffic areas like healthcare facilities and educational institutions.
Automatic door operators
Retrofit automatic operators enable touch-free access for existing doors. Designed for fire-rated and standard doorsets, these systems enhance hygiene compliance in commercial restrooms, reception areas, and high-traffic corridors while maintaining safety certifications.
Questions
How can I verify fire door compliance?
Our BM TRADA Q-Mark accreditation guarantees proper installation. We provide documentation and certification for all fire-rated doorsets.
What sectors do you serve?
We specialise in commercial, education, leisure, and healthcare sectors with tailored door and screen solutions.
Can you handle custom door specifications?
Yes, our Natradoor+ and Natraglaze ranges offer bespoke sizes, finishes, and performance ratings to meet specific project requirements.
Do you provide infection control measures?
Yes, our StemGuard solutions include antimicrobial coatings, automatic operators, and hygienic ironmongery for reduced cross-contamination risks.
Are your installations London-specific?
We primarily serve London and surrounding areas, with nationwide project capabilities through our specialist team.
How do you ensure project timelines?
Our single-source supply-and-install model streamlines processes, with dedicated teams ensuring adherence to agreed deadlines.
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