Secure, Stylish Doors In Any Colour
Transform UK Developments Ltd supplies and fits premium composite doors, uPVC doors, French doors, patio doors and aluminium bi-folds across Teesside and the North East.
A Door For Every Style & Budget
From statement composite entrances to space-saving bi-folds — all made to measure, supplied and fitted by our certified Teesside team with a full 10-year guarantee.
Composite Doors
Premium Solidor composite doors with a solid timber core and weather-resistant GRP skin, available in any custom RAL colour. A truly bespoke, secure and thermally efficient entrance — supplied and fitted across Teesside with a full 10-year guarantee.
uPVC Front & Back Doors
Low-maintenance uPVC entrance doors with multi-point hook locks and anti-snap cylinder protection. A cost-effective, secure and weatherproof option for front, back and side entrances across Teesside — backed by our full 10-year guarantee.
French Doors
Classic double-leaf French doors that open inwards or outwards, flooding your room with light and creating a seamless link to your garden or patio. Supplied and fitted in uPVC or aluminium across Teesside with a full 10-year guarantee.
Sliding Patio Doors
Smooth-running sliding patio doors with slim frames and large glass panels — perfect for unobstructed garden views without sacrificing floor space. Supplied and fitted in uPVC or aluminium across Teesside with a full 10-year guarantee.
Aluminium Bi-Folding Doors
Fold the whole wall away with ultra-slim aluminium bi-folds. Open your living space fully to the garden with a near-uninterrupted panoramic view — supplied and fitted with a thermally broken frame and our full 10-year guarantee.
Stable & Cottage Doors
Characterful split stable doors and cottage-style entrances that combine traditional charm with modern security and weatherproofing. Perfect for period and rural Teesside homes — supplied and fitted with a full 10-year guarantee.
Door Replacement Service
Full door replacement service — from a single front door to a whole-house set of entrances. We remove your old door, supply and fit a new made-to-measure composite, uPVC, French, patio or bi-fold door, and leave everything clean and finished. Covered by our full 10-year guarantee.
Replace Tired, Damaged or Insecure Doors
Whether your front door is draughty, warped, damaged or simply past its best, our door replacement service makes upgrading easy. We remove your old door and frame, supply and fit a made-to-measure replacement, and leave everything clean and finished — usually within a day.
Recent Door Installations Across Teesside
Take a look at real transformations completed by our New Marske team — from bespoke anthracite grey and slate grey composite doors, to cottage-style cream entrances, sunburst glazing, and full white uPVC door sets with frosted side panels.
Classic Arched Door
Prior to modern replacement: traditional Victorian timber entrance ready for high-security upgrade.
Ready For UpgradeTwin Sidelight Composite
Stunning anthracite grey composite door with matching frosted sidelights and chrome letterbox & handle.
10-Year Guarantee
Light & Privacy
Interior hallway perspective showing maximum natural light transmission combined with complete privacy glazing.
Thermal A+ Glazing
Contemporary Square Cassette
Sleek vertical woodgrain panel with 4 central square cassettes, smart handle and flush threshold.
Ultion High Security
Architectural Offset Panel
Custom fitted into natural stone: top transom light, offset vertical glazed strip and matching sidelight.
CERTASS CertifiedCottage Diamond Bevel
Tongue-and-groove vertical planking in warm cream with an ornate diamond-leaded glass cassette under a brick arch.
10-Year Guarantee
Stained Glass Composite
Subtle slate grey finish paired with an artisan leaded and coloured teardrop decorative glass panel and chrome hardware.
Decorative Glazing
Door & Sidelight Suite
Complete entrance combination with top transom light and full-height frosted side panel for maximum hallway brightness.
10-Year Guarantee
Sunburst Door & Windows
Live installation: new A+ rated top-hung casement window fitted, with our custom circular sunburst composite door ready to install.
Expert InstallationChoose Any Colour Of Your Choice
Pick from our most popular shades or request custom RAL colour matching to create a truly unique entrance for your home.
Supplied & Fitted By Our Own Team
Every composite door and uPVC set is safely transported in our purpose-built liveried vans and installed by certified local tradesmen based in New Marske — all covered by our full 10-year guarantee.
Tell Us What You're Looking For
No pushy salespeople. Just a friendly chat about your project with a free, no-obligation home survey across Teesside and the North East.
1. What home improvement products do you need?
Select all that apply — you can pick more than one.
Backed By Our 10-Year Guarantee
Every window and door we supply & fit is covered by our full 10-year workmanship guarantee — CERTASS certified and fully insured for your peace of mind.