New-build developers economise on doors — often the cheapest compliant option. Here's how to upgrade sensibly at options stage or shortly after.
Standard developer specification is: composite front door (basic manufacturer, single glazed panel, 1-star cylinder), uPVC back door, and uPVC or basic aluminium patio doors. All compliant with current regs but usually the cheapest product that meets minimum standards.
The front door is the single biggest external-appearance decision on a new build. If your developer offers upgrades (Distinction Doors, Solidor, Rockdoor), the price uplift at options stage is a fraction of what a post-completion replacement would cost. Prioritise the 3-star cylinder upgrade — it's often left as a paid option.
New-build patio doors are typically basic aluminium bi-folds or sliders. Slim-frame upgrades and higher-spec brands (Origin, Sunflex, Reynaers) are often offered at options stage with 20–40% uplift over standard — significantly cheaper than replacing after completion. Worth the money if the room matters.
The back door is where developers save. It's often a bargain-basement uPVC door with a 1-star cylinder — the weakest point in the house's security. Insist on a 3-star cylinder upgrade at handover or budget £500–£900 for a proper composite replacement in year one.
Post-handover upgrades don't void NHBC cover but need to be professionally installed and, where applicable, FENSA-certified. Keep the paperwork — you'll need it at any resale within the warranty period.
Everything you need to know before buying a composite front door — from materials and security to colours and energy ratings.
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