Style, security, and performance you can trust.
Premium Composite Doors
Hallmark & Solidor.
Looking to upgrade your home with a stylish, secure, and energy-efficient door? At Herts window repair, we proudly offer Hallmark and Solidor composite doors - two of the UK's leading brands known for their exceptional quality, innovation, and design flexibility.
Why choose Composite Doors?
Composite doors are built to offer the best of both worlds: the classic look of timber with the durability and low maintenance of modern materials. Unlike traditional wooden doors, they won’t warp, rot, or fade - even in tough weather conditions. They're ideal for homeowners who want lasting value without compromising on curb appeal.
Hallmark Composite Doors
Designed for elegance - engineered for performance.
Hallmark composite doors combine cutting-edge technology with refined aesthetics.
With over 30 years of industry experience, Hallmark is a trusted British manufacturer with a strong focus on security and design versatility.
Whether you're after a bold, modern look or something more traditional, Hallmark doors can be tailored to suit your home perfectly.
High security
PAS24 and Secured by Design options available.
Customisable
A wide range of colours, styles, and glass designs.
Energy efficient
Excellent thermal insulation and weatherproofing.
Durable
GRP skin resists fading, scratching, and cracking.
Solidor Composite Doors
Luxury doors with solid timber core strength.
Solidor takes composite doors to the next level with a unique solid hardwood core and unmatched style options. If you want the strongest, most secure composite door on the market, Solidor is your brand.
A Solidor door not only looks stunning - it’s built to protect your home for decades to come.
Solid timber core
Provides superior strength and security.
Market-leading security
Avantis multipoint locking system as standard.
Extensive colour range
Over 20 colours inside and out.
Authentic designs
From classic cottage styles to sleek contemporary options.
Eco-conscious
Fully recyclable and made with sustainability in mind.
