Rear Extensions in Crumlin

Crumlin (NP11) · Caerphilly County Borough · Free written quote · 10-year guarantee · We beat any like-for-like quote

Fairway has been quoting rear home extensions with bifolds across Crumlin for local homeowners, and the NP11 postcode is one we know inside out. Working Crumlin regularly means we already know which products perform here. Crumlin overlooks the Ebbw Valley and was once home to the famous Crumlin Viaduct. Traditional valley housing here benefits greatly from energy-efficient replacement windows. The 1857 viaduct that once spanned the valley was the highest in Britain — today's residents inherit the same exposed valley brickwork, where multi-chambered uPVC and well-sealed composite doors dramatically cut draughts and damp on classic mid-terrace stock. On a rear extension with bifolds here we typically specify rear build with full-width aluminium bifolds opening directly onto the garden, which opens the entire back of the house to the garden in a way no patio or French door can match. Premium aluminium glazing built into the original quote — never an upsell. Familiar territory — installs in Newbridge and Pontywaun go through this postcode every other week. Director-led surveys, fixed written quotes after the survey, and a 10-year insurance-backed guarantee written into the contract. Free survey, fixed written quote in 48 hours, beat-any-like-for-like price guaranteed.

A rear extension is the most common form of home extension — and the simplest planning route. We build single-storey rear extensions up to 6m on detached and 4m on semi-detached / terraced homes under permitted development, with full design-and-build including aluminium bifolds, sliders and lanterns. Most single-storey rear extensions complete in 8–14 weeks.