Why choose BM & MKM
your self build projects.

  • Access quality aluminium products without a trade account
  • Custom sizes and configurations to suit your vision
  • Expert guidance from planning to installation
  • Fast track options to keep your project on schedule
  • Delivered to site or local MKM branch nationwide
View Products
Made to measure, made to lastExpert support at every stageFast lead times, nationwide deliveryCompetitive pricing, transparent quotesComplete product range, one trusted supplierInstallation-ready with full documentationBacked by MKMs nationwide branch networkMade to measure, made to lastExpert support at every stageFast lead times, nationwide deliveryCompetitive pricing, transparent quotesComplete product range, one trusted supplierInstallation-ready with full documentationBacked by MKMs nationwide branch network

Nunthorpe Self Build Project

Wynyard Self Build Project

Nunthorpe Self Build Project

Wynyard Self Build Project

North Project

Wynyard Self Build Project

North Project

Stokesley Project

Please select the category below that best matches you to ensure proper direction.

Custom Size Bifolding Doors
Set Size Bifolding Doors
Set Size Sliding Doors
Custom Size Sliding Doors
Corner Bifolding Doors
French Doors
Single Doors
Designer Front Doors
Set Size Heritage Style Bifolding Doors
Internal Alu Elite Doors
Internal Alu Elite Screens
Aluminium Windows
Aluminium Roof Lanterns
Luxury Garden Rooms
Gable Windows
Verandas & Pergolas

Built for Scale. Backed by MKM. Delivered by BM Bifolding Doors.

Aluminium Systems for Large
Domestic & Commercial Projects.

  • Precision-Engineered for Scale
    Our aluminium doors are built for high traffic, large openings, and repeat-use without compromising on thermal performance or security.
  • Flexible Customisation
    Specify exact sizes, glazing, colours, and thresholds to meet architectural demands and planning conditions.
  • Regulation & Tender-Ready
    We supply all necessary U-values, certifications, and documentation to meet Part L, Part M, PAS 24, and planning approval.
  • End-to-End Project Support
    From technical drawings and tender packages to installation advice and delivery planning—we work closely with you throughout.
  • Phased Delivery & Site Logistics
    We offer phased or multi-drop deliveries, packaging by plot/unit, and direct-to-site options to match your build schedule.

Request Your Quote

Please complete the quick multi-step form below. Our team will review your needs and be in touch within one business day.

Everything you need to know about Trade Accounts

Frequently Asked Questions

What types of commercial projects do you supply aluminium doors for?

We supply for a wide range of commercial builds including offices, retail units, hospitality venues, schools, care homes, and multi-unit housing developments.

Yes, all BM Bifolding Doors are fully compliant with UK commercial building regulations, including Part L (thermal performance), Part M (accessibility), and PAS 24 (security).

Yes, we offer tiered pricing for commercial orders. The more you order, the greater the discount—speak to our team or your MKM branch for a custom quote.

Do you support project tenders or specification documents?

Yes, you can upload plans directly through our Project Enquiry Form for a tailored quote based on your exact requirements.

Lead times vary based on the size and complexity of the project, but most commercial orders are fulfilled within 4–6 weeks, with priority scheduling available for repeat clients.

Yes, we provide flexible delivery options, including direct-to-site drops and phased deliveries for multi-phase construction projects.

We offer installation guides, technical support, and video walkthroughs. For large-scale projects, a technical advisor can assist with best practices and compliance.

Yes. Many of our systems support electronic locks, keypad entry, and smart access integration for commercial environments.

Yes. Our commercial-grade aluminium doors are designed for high usage durability, with reinforced frames, smooth operation, and low-maintenance components.

Yes, we provide detailed thermal performance data, including U-values, acoustic ratings, and wind resistance for planning and compliance purposes.

While our standard range is not fire-rated, we can advise on specialist systems or supply fire-rated alternatives via our partner network depending on project requirements.

Yes, all commercial clients receive a dedicated point of contact and access to live order tracking, including production stages and estimated delivery dates.

Simply head to our Commercial Enquiry page, submit your project details or upload plans, and our team will provide a custom quotation within 1–2 working days.