Maltby's Local
Composite Door Company
Premium Composite Doors for Secure, Stylish Homes
At Composite Doors Ltd, we’ve spent over 15 years helping homeowners across Lincolnshire transform their entrances with doors that combine security, energy efficiency, and lasting visual appeal.
We understand the issues customers face with outdated styles, draughty frames, or poor installation—so we’ve built our reputation on solving those problems with high-quality products and expert fitting. We’re a trusted, independent company offering only the best in modern composite, UPVC, and internal door solutions—with a professional, no-pressure approach from start to finish.
Explore Our Composite Door Collections
Our wide range of composite doors includes premium brands that are built to last. Whether you’re after traditional charm or sleek, modern styling, we have an option to match your home and taste.
We proudly supply and install:
Every door is precision-fitted for a perfect finish, and peace of mind.
Tel: 01724 845449
Mob: 07970 693698
Design Your Perfect Door
We make it easy to bring your ideal door to life. You can use our Endurance Door Designer or our Rockdoor Door Designer to build and customise your new entrance from the comfort of your home.
Choose your style, colour, glazing, hardware, and locking system and then leave the rest to us. Need help with your design? Our friendly team is always available to offer guidance and expert recommendations.
Tel: 01724 845449
Mob: 07970 693698
Secure, Accredited & Fully Guaranteed
Security is at the forefront of everything we do. Every door we install comes with high-spec locking systems and robust materials designed to give you total confidence in your home’s protection.
We are CERTASS registered, and every installation is backed by a QANW insurance-backed warranty and 12-month workmanship guarantee. Our team is also GQA Certified through the Endurance Doors Installer Academy, so you can trust that everything is completed to full compliance with LABC regulations.
Energy Efficient by Design
Replacing an old front door is one of the easiest ways to improve your home’s insulation. All of our composite doors are built to reduce heat loss, eliminate draughts, and help lower your energy bills.
With expertly fitted thermal frames, thermal cores and high-grade weather seals, you’ll feel the difference every day.
Tel: 01724 845449
Mob: 07970 693698
FAQs – Composite Doors Explained
What makes composite doors different from UPVC or timber?
Composite doors are made from multiple materials for superior strength, insulation, and weather resistance. They won’t warp or fade, and they offer a solid, secure feel with minimal maintenance.
Can I customise my door design?
Yes—you can use our Rockdoor or Endurance door designers to create a fully bespoke door. Choose your colour, glazing, hardware and finish, then we’ll take care of the rest.
How long does installation take?
Most installations are completed in just one day. We confirm all timescales in advance and keep things tidy and efficient.
Where do you install doors?
We install across Lincolnshire, covering towns, villages and rural areas throughout the region.
The difference in warmth and appearance is unbelievable. Our old windows were wooden and had started to rot.
The new uPVC windows are clean, sharp, and totally draught-proof. Jason did a thorough job, checking all openings worked smoothly and the seals were tight. Composite Doors made everything easy and we’re extremely happy with the result.