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Triangle Window Shutters: Custom shutters for gable and loft windows

Triangle window shutters offer a striking way to enhance architectural windows while maintaining light control and privacy. Whether fitted to gable end windows, loft triangles, or attic apex glazing, these shutters are designed to follow every angle with absolute precision.

At Long Island Shutters, we specialise in made-to-measure shutters for challenging shapes and spaces. Every set of triangular plantation shutters is measured, templated, and installed by our in-house carpenters to ensure perfect proportion, symmetry, and functionality — with no gaps, no guesswork.

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Bespoke triangle shutters

Every triangle is unique — which is why we create bespoke triangle shutters to suit your window’s exact dimensions and slope.

We take precise measurements and create a template of your window’s frame before manufacturing. Each shutter is then hand-assembled and fine-tuned for a seamless fit, even on steeply angled or uneven surfaces.

Benefits:

  • Perfect fit for all window angles and pitches

  • Improved insulation and privacy

  • Choice of operable or fixed louvres

  • Finished in your choice of paint, stain, or custom colour

The Warren

See how triangular shutters transform spaces

Bring symmetry, privacy, and style to your loft or gable windows. Bring symmetry, privacy, and style to your loft or gable windows.

Shutters

Best shutters for triangular windows in Essex

We install custom triangular shutters across Essex and surrounding areas, measuring every angle to the millimetre for a tailored, lasting fit. These shutters don’t just follow the lines of your windows — they enhance them, drawing the eye upward and highlighting architectural symmetry.

Shutters for gable end windows

Shutters for gable end windows

Gable end windows bring dramatic light and space into a room — and our shutters help you control both. The clean, angular design of gable windows can be challenging to dress with curtains or blinds, but triangular shutters provide a made-to-measure solution that enhances the structure instead of hiding it.

Plantation shutters for loft and gable windows

Plantation shutters for loft and gable windows

We craft and install plantation shutters that complement the shape of your gable glazing while offering the same flexibility as standard designs — adjustable light, airflow, and privacy.

Custom plantation shutters for attic windows

Custom plantation shutters for attic windows

We design shutters for attic and loft spaces, where angles can vary significantly. Each one is measured to fit tightly, blocking draughts and allowing smooth operation — even in compact areas.

Loft triangle window shutters

Loft triangle window shutters

Loft triangle shutters are particularly effective in converted lofts, where windows often sit within sloped ceilings. Our designs follow the roofline precisely, creating clean visual flow and balance.

They add warmth, privacy, and structure while letting in soft, controlled light — perfect for bedrooms, home offices, or studios.

Angled triangular shutters

Angled triangular shutters

Every angled triangular shutter is engineered to follow the exact geometry of your glazing. Whether the angle is shallow or steep, we use precise templating techniques to ensure accuracy.

Plantation shutters for apex windows

Plantation shutters for apex windows

Apex shutters are one of our most popular solutions for high gable ends or vaulted ceilings. They complete the symmetry of the triangular glazing while maintaining comfortable light levels throughout the day.

Shutters for triangular attic windows

Shutters for triangular attic windows

Our triangular attic shutters help create privacy and comfort in upper-floor spaces. They follow the contours of the window perfectly, giving even the smallest or most awkwardly shaped windows a refined, finished look.

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Benefits of triangle window shutters

  • Perfect fit for gable, loft, and apex windows

  • Follows any angle with exact precision

  • Beautiful architectural symmetry

  • Enhanced insulation and energy efficiency

  • Easy light and privacy control

  • Custom finishes to suit your décor

  • Adds value and visual impact to your home

Please browse our gallery to explore real installations across Essex.

Explore our range of custom finishes

Our process

1

Initial enquiry

Contact us to discuss your project.

2

Consultation

Chris or Pete visits your home to measure each angle precisely.

3

Quotation

Receive a clear, same-day quote — no hidden costs.

4

Follow-up

Rick checks in after a week to answer any questions.

5

Order confirmation

A 50% deposit secures your order.

6

Manufacturing

Shutters are crafted from your exact template and design.

7

Installation

Our skilled fitters install carefully and cleanly, leaving your space tidy and complete.

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Why choose us

Expertise in complex shapes

We specialise in angled, arched, and triangular windows.

Owner-led service

Consultations are handled personally by Chris or Pete.

In-house craftsmanship

Our carpenters fit every shutter themselves — no subcontractors.

Made to measure

Every shutter is designed for your exact window dimensions.

Fair pricing

Clear, competitive quotes and our like-for-like Price Promise.

10-year warranty

Confidence in every installation.

Local focus

Serving Essex and surrounding areas with personal, dependable service.

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Custom triangular shutters

Our custom triangular shutters are made to fit any shape, size, or pitch of window. From sharp-angled loft triangles to wide gable ends, we measure each side carefully to ensure seamless alignment.

Why custom matters:

  • Each shutter is built from an exact template

  • Perfect symmetry across panels

  • Enhanced insulation and durability

  • Available in multiple finishes to suit your décor

Commonly Asked Questions

Yes. Each shutter is built from a template of your window to ensure perfect alignment and fit.

Yes, depending on the shape and size, they can be fixed or operable for light control.

Absolutely. They are ideal for gable-end glazing, loft conversions, and attic windows.

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Ready to complete your home with perfect geometry?

Book your consultation with Chris or Pete — we’ll measure, design, and install shutters that elevate your home’s architecture.

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