“Job carried out on time and very professionally.”

Our Services
Windows
Precision-fitted windows that transform your home
For every Essex home
We fit replacement windows across Essex and East London for homes that need different answers: full-house upgrades, single problem openings, front elevations, bungalows, extensions, and period-style properties.
Made to fit your home
Casement, sliding sash, flush sash, tilt-and-turn, and aluminium frames all solve different problems. We use the survey to match style, opening layout, colour, ventilation, and glazing to the property.
Guaranteed for 10 years
Every window carries a 10-year guarantee on the frame and sealed unit. A+ energy ratings are standard, with Secured by Design hardware available across the right specifications.
From survey to handover
We measure properly, talk through the options, and leave you with a written quote. No rushed doorstep decision, no vague photo estimate, and no pressure to choose before you are ready.
Free Survey
Need help narrowing down the right window?
We can survey the openings, talk through UPVC versus aluminium, explain glazing and colour options, and leave you with a clear written quote for your home.
Windows range
Browse Windows
UPVC windows
UPVC Windows
Energy-efficient, low-maintenance frames in 18 coloursAluminium windows
Aluminium Windows
Slim-profile aluminium frames for a modern, contemporary lookWindow guide
Which window style suits the house?
Most window choices come down to the look from outside, how each room needs to open, and whether the house wants a simple replacement or a more traditional finish. Pick the style first, then settle the colour, opener layout, glass, trickle vents, and any easy-clean or escape hinge details.

Windows product comparison
- Casement windows
- Simple replacements and full-house upgrades. Choose these when you want a clean, practical window that works in most rooms.
- Flush sash windows
- A flatter, more traditional outside line. Choose these when standard casements look too bulky or too modern for the house.
- Sliding sash windows
- Victorian, Edwardian, and Georgian-style fronts. Choose these when the house suits vertical sliding windows and period proportions.
- French casement windows
- Clear openings without a fixed centre post. Choose these for rooms where both sides opening together gives a better view or wider access.
- Tilt-and-turn windows
- Easy cleaning and controlled ventilation. Choose these where inside cleaning, upper-floor access, or secure ventilation matters.
- Aluminium windows
- Slimmer frames and darker contemporary colours. Choose these for extensions or modern elevations where the frame line matters more than lowest cost.
“Second time using CII for different properties. Easy process, good pricing, and the work was completed exactly as promised.”
Questions answered
Common Questions
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