Our Products

Everything for your home, made and fitted properly.

From a single replacement window to a whole barn conversion. Whatever the project, the same Clarendon family team handles it — survey to finish.

A-rated Rehau frames in 1,500+ colours. Casement, sash, tilt-and-turn, bay and heritage styles, in uPVC, aluminium or timber-effect.

Composite, uPVC, French, patio, bi-fold and sliding doors. Design yours in 150+ styles and 1,500+ colours via our online configurator.

Edwardian, Victorian, lean-to, P-shape and gable styles — with warm-roof upgrades that turn them into year-round rooms.

Single-storey, double-storey, side-return and wrap-around. Drawn, built and finished by one team.

Sympathetic conversions that keep the character and bring in modern comfort. Planning support included.

The design-led space between conservatory and extension. Roof lanterns, solid walls, year-round comfort.

Verandas, canopies, glassrooms, carports and fencing. Bringing your home into the garden, all year round.

Replacement fascias, soffits, bargeboards and guttering. Properly fitted, often in a single day.

Windows, doors and shopfronts for landlords, property managers, retailers and small developers.

Why Clarendon

A quarter-century of doing it the right way.

Three generations of craftsmen. The same name on the van as on the paperwork.

Independently vetted. Government-endorsed. Your deposit and workmanship are protected.

On every installation. Backed by insurance — not just a promise.

Local installers, local knowledge. We've been working these streets for 26 years.

No hard sell. No pressure. Just an honest conversation about what you'd like to do — and what it would take to do it properly.