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About Us

About SDM Doors

Trusted Home Improvement Specialists in Hertfordshire, Bedfordshire, Buckinghamshire & Beyond

Founded in 2010 by Scott, and now proudly run alongside his wife Charlotte and skilled installer Sebastian, SDM Doors has grown into one of the region’s most respected names in home improvement. Based in the heart of the Home Counties, we specialise in the supply and installation of garage doors, front doors, composite doors, bifold doors, and sliding doors, as well as structural alterations such as garage conversions and opening modifications — serving homeowners and businesses across Herts, Beds and Bucks.

From small domestic garages to large bespoke developments, every project we undertake is handled with the same level of care, craftsmanship and attention to detail. Our installations range from classic up-and-over garage doors to modern sectional and roller systems, as well as traditional side-hinged styles — all sourced from leading UK and European manufacturers known for quality and reliability.

We also offer an exceptional range of front doors and composite doors, combining elegant design with advanced security and thermal efficiency. For those looking to open up living spaces, our aluminium bifold and sliding doors deliver the perfect blend of style, strength and seamless indoor-outdoor living.

OUR VALUES

As a family-run business, we take immense pride in delivering a personal, honest, and professional service from start to finish. There are no salesmen or hard-selling tactics — just genuine advice, transparent pricing, and products we trust enough to fit in our own homes.

We believe that every installation should enhance not only your property’s appearance but also its functionality, efficiency, and security. That’s why our small but highly trained team works to the highest possible standards on every project, ensuring perfect fitment and flawless finishing touches.

OUR REPUTATION

Our reputation has been built on word of mouth, repeat business, and the satisfaction of hundreds of happy customers across the region. We’re proud to maintain an excellent Checkatrade rating, reflecting our commitment to reliability, professionalism, and quality workmanship.

Whether you’re looking to replace an old garage door, upgrade your front entrance, or transform your home with stunning bifold doors, SDM Doors is here to help.

WHY SDM DOORS?

Over 30 years’ experience in the industry
Specialists in garage, front, composite, and bifold doors
Fully trained, in-house installation team
No subcontractors or salesmen — just friendly, expert advice
High-quality products from trusted manufacturers
Excellent aftercare and local support

Meet The Team

20 years experience

Scott Mason

Owner/installer

11 years experience

Charlotte Mason

Owner/Office Manager

8 years experience

Sebastian Bergstrom

Installer

ORDER PROCESS

Contact Us

Get in contact with us to discuss your requirements

Estimate

Receive an estimate or book a survey with one of our fitters

Quote

Receive a Final quotation and place your order

Order Complete

We will now agree an installation date with you

Job Completed

Complete the installation of your chosen product

Our products and services

Garage Doors

We work with all the leading manufacturers so we can provide you with an unrivalled choice of garage doors.

Front Doors

Whether you are looking for a contemporary or traditional look, all of the front doors we supply are backed by expert engineering, have outstanding thermal values and meet the highest security ratings.

Bi-Fold & Sliding Doors

We supply and fit a number of sliding doors and bi-fold door varieties. All our bifold doors are of the highest quality and fitted to industry standard.

Structural Alterations / Double Garage Door Conversion

We specialise in structural alterations and double garage door conversions. All the building work is done via our own team and is not sub-contracted out to a third party.

Garage Door Repairs

Here at SDM Doors we like to boast an unrivalled wealth of product knowledge and provide a Garage Door repair service that is second to none. Our installers carry a wide range of spares, as we aim to repair your garage door on our very first visit.

Need our Help?

If you’re ready to enhance your home with premium doors and expert installation, we’d love to hear from you. Contact our friendly team today to arrange a free, no-obligation quotation or to discuss your project in more detail.