In2stone
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Applications

Exterior Stone Cladding

Stone cladding transforms a building's exterior from ordinary to extraordinary — adding depth, texture, and lasting kerb appeal that painted render and timber simply cannot match. We supply and fabricate precision-cut stone panels for architects, builders, and homeowners across Portsmouth, Hampshire and the surrounding area.

Contemporary British residential property with premium natural stone cladding panels on the front facade, bathed in warm golden hour light
25+ Years Experience
1,500+ Projects Completed
4.9 from 100+ Reviews
Free No-Obligation Quote

Inspiration

Beautiful Design Styles

From residential facades to architectural features, exterior stone cladding brings permanence and distinction to any property. We supply and cut stone to your exact specifications — here are three materials our clients and their builders choose most.

Dark Granite Entrance Cladding
01
01 // Granite

Dark Granite Entrance Cladding

Deep charcoal granite panels with natural crystalline texture clad entrance columns and porch surrounds, creating a striking first impression that weathers beautifully over decades. Granite's extreme density makes it one of the most durable natural stones for exposed UK facades.

Sintered Stone Commercial Facade
02
02 // Sintered Stone

Sintered Stone Commercial Facade

Large-format sintered stone panels in a warm grey stone-effect finish wrap a contemporary building exterior with clean horizontal lines. Brands like Dekton and Neolith are completely UV-stable, frost-proof, and non-porous — engineered to look as fresh in twenty years as the day they were fitted.

Residential Porcelain Cladding
03
03 // Porcelain

Residential Porcelain Cladding

Light cream porcelain panels with a subtle limestone-effect texture bring a warm, refined finish to a traditional British property. Lightweight yet remarkably resilient, porcelain handles freeze-thaw cycles without cracking and requires zero sealing or maintenance.

Explore

Browse Colours and Styles for Exterior Stone Cladding

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Guide

Your Guide to Exterior Stone Cladding

Stone That Works as Hard as It Looks

A building’s exterior is its handshake with the world. Stone cladding turns that handshake into something memorable — a facade that weathers gracefully, resists the worst of British rain, frost, and UV, and adds genuine character that lasts for generations. Whether you’re an architect specifying materials for a new-build, a builder renovating a period property, or a homeowner looking to elevate your home’s kerb appeal, the right stone makes a transformative difference.

At In2stone, we specialise in supplying and fabricating exterior stone cladding panels cut precisely to your specifications. With over 25 years in the stone industry and a workshop equipped with CNC cutting technology, we can take an architect’s drawings or a builder’s measurements and produce cladding panels ready for installation — in granite, sintered stone, porcelain, or natural stone, cut to the exact dimensions, profiles, and finishes your project demands.

Important to know: We supply and fabricate exterior cladding but do not offer an installation service for exterior projects. We work closely with builders, architects, and contractors — providing expert material guidance and precision-cut stone so your installation team receives panels that fit perfectly and perform beautifully.

How We Work With You

Our role is to bridge the gap between your vision and the stone itself. Whether you’re a homeowner working with a builder, an architect specifying cladding for a new development, or a contractor fitting out a commercial facade, our process is straightforward:

  1. Material consultation — Visit our Portsmouth showroom to see and touch over 500 stone samples, or speak with Ian or Sam by phone. We’ll help you choose a material that suits your building, your climate exposure, and your aesthetic goals
  2. Specification review — Share your architect’s drawings, builder’s measurements, or your own sketches. We’ll confirm which stone works best for your application and advise on panel sizes, thicknesses, and edge finishes
  3. Precision fabrication — Every panel is cut in our own workshop using CNC machinery, profiled to your exact dimensions, with cut-outs, mitres, and returns as needed
  4. Supply and delivery — Your finished panels are carefully packed and made available for collection from our workshop, or we can arrange delivery to your site

This means your builder or contractor receives stone that’s ready to fix — no guesswork, no site adjustments, no waste.

Which Materials Work Best for Exterior Cladding?

The British climate demands materials that can handle freeze-thaw cycles, driving rain, salt exposure near the coast, and prolonged UV without fading, cracking, or staining. Here are the materials we recommend for exterior use — and why.

Granite — Timeless Natural Strength

Granite is one of the hardest natural stones available, and it has been used for building facades for centuries with good reason. Its crystalline mineral structure gives it outstanding resistance to weathering, scratches, and impact. Dark granites — charcoal, graphite, deep greens, and blacks — perform particularly well outdoors because their mineral density makes them less susceptible to UV fading and moisture absorption than lighter varieties.

Best for: Entrance columns, porch surrounds, lower facade cladding, garden wall features, and anywhere you want authentic natural stone character.

Sintered Stone — Engineered for Extremes

Sintered stone brands like Dekton and Neolith represent the pinnacle of engineered exterior surfaces. Created under immense heat and pressure to replicate the geological process that forms natural stone, sintered panels are completely non-porous, UV-stable, and frost-proof. They won’t absorb moisture, won’t fade in direct sunlight, and won’t crack through freeze-thaw cycles — even after decades of exposure. Available in large formats and a wide range of stone-effect finishes, sintered stone is increasingly the material of choice for contemporary architectural cladding.

Best for: Full building facades, contemporary new-builds, commercial exteriors, and any project where long-term zero-maintenance performance is the priority.

Porcelain — Versatile and Lightweight

Large-format porcelain panels offer excellent exterior performance with significantly less weight than natural stone — an important consideration for retrofit cladding on existing structures. Non-porous by nature, porcelain handles moisture, frost, and UV exposure without degradation. It’s available in an extraordinary range of finishes — from marble effects and concrete looks to natural sandstone textures — giving architects and homeowners genuine design flexibility.

Best for: Residential facade upgrades, lightweight cladding over existing render, mixed-material facades, and projects where design variety and competitive pricing matter.

Natural Stone Panels — Authentic Character

For period properties and heritage projects, natural stone panels in limestone, sandstone, or slate provide an authenticity that engineered materials can only imitate. We can source, cut, and profile natural stone panels to complement existing architectural details — matching the stone to the building’s character and the local vernacular.

Best for: Period property renovations, conservation areas, rural properties, and projects where the stone must feel genuinely part of the landscape.

What to Consider for Your Cladding Project

Climate and Exposure

The level of exposure your facade faces is the single most important factor in material selection. A sheltered south-facing wall has different demands to a fully exposed north-facing facade battered by coastal winds. We assess your specific conditions and guide you towards the most appropriate stone — ensuring it performs for decades, not just years.

Panel Sizes and Thickness

Exterior cladding panels vary widely in format — from standard brick-sized units to large-format slabs covering several square metres in a single piece. Thicker panels (20mm–30mm) are typical for structural cladding, while thinner formats (6mm–12mm) are used for rainscreen systems and ventilated facades. We fabricate to whatever dimensions and thicknesses your project requires.

Fixings and Substrate

Different cladding systems use different fixing methods — from mechanical fixings and adhesive bonding to rainscreen bracket systems. While we don’t handle the installation, we work closely with builders to ensure our panels are manufactured to the correct tolerances for your chosen fixing system. We can produce rebated edges, keyed backs, and custom profiles to suit specific fixing requirements.

Edge Profiles and Finishes

The finish of each panel affects both its appearance and its weather performance. Polished surfaces shed water more readily but can be slippery underfoot near entrance areas. Honed and bush-hammered finishes offer a more textured, natural appearance with improved grip. We offer the full range of edge profiles and surface finishes, cut to your specification.

Working With Architects and Builders

We understand that exterior cladding projects involve multiple stakeholders — and we’re set up to make the stone supply element seamless. Whether you’re an architect specifying materials at design stage or a builder ready to order, we can:

  • Provide material samples for client presentations and planning applications
  • Advise on material suitability for specific exposures, substrates, and aesthetic goals
  • Produce CAD-ready panel schedules from architectural drawings
  • Fabricate bespoke panels with complex profiles, mitres, returns, and reveals
  • Deliver on programme to meet your construction schedule

Ian has been in the stone industry since his early twenties, starting in a Norwegian quarry and gaining worldwide experience with materials and techniques. That depth of knowledge means we can answer the technical questions that matter — which stone suits which exposure, what thicknesses work with which fixing systems, and which finishes will age most gracefully in the British climate.

Care and Maintenance

Exterior stone cladding is inherently low-maintenance, particularly when the right material is chosen for the exposure level:

  • Granite — Naturally hard-wearing and resistant to pollution, acid rain, and biological growth. An optional impregnating sealer can be applied for additional protection, particularly on lighter granites in exposed positions
  • Sintered stone — Virtually zero maintenance. Non-porous surface resists algae, moss, and staining without any treatment
  • Porcelain — Non-porous and self-cleaning in rain. Occasional pressure-washing keeps the surface pristine in areas prone to biological growth
  • Natural stone — Maintenance varies by stone type. Limestone and sandstone may benefit from periodic sealing and biological treatment in damp, shaded positions

Frequently Asked

Exterior Stone Cladding Questions

What is the best material for exterior stone cladding in the UK?
The best material depends on your building's exposure and your aesthetic goals. For maximum durability in fully exposed positions, sintered stone brands like Dekton and Neolith are hard to beat — they're completely non-porous, UV-stable, and frost-proof with zero maintenance required. Dark granite is a superb natural option with centuries of proven performance on British facades. Porcelain offers excellent weather resistance with less weight, making it ideal for retrofit cladding. For heritage properties and conservation areas, natural limestone or sandstone panels provide the authentic character that engineered materials can only imitate. We can guide you towards the right stone for your specific project during a showroom visit or phone consultation.
Do you install exterior stone cladding?
We supply and fabricate exterior stone cladding panels but do not offer an installation service for exterior projects. Our expertise lies in material selection, precision cutting, and profiling — ensuring your builder or contractor receives panels that are cut to exact specifications and ready to fix. We work closely with architects, builders, and contractors throughout the process, providing expert guidance on material suitability, panel dimensions, fixing tolerances, and edge profiles. Many of our trade clients rely on us specifically because the panels arrive site-ready with no adjustments needed.
How much does exterior stone cladding cost?
The cost of exterior stone cladding varies significantly depending on the material, panel sizes, complexity of cuts, and the total area to be covered. Natural granite panels typically sit in the mid-to-premium range, while sintered stone and large-format porcelain can vary from competitive to high-end depending on the brand and finish. We provide transparent pricing based on your architect's drawings or builder's measurements — the quote covers material, cutting, profiling, and any bespoke fabrication such as mitres, returns, or reveals. Contact us with your project details and we'll provide a clear, no-obligation quote.
Can stone cladding withstand British weather and frost?
Absolutely — provided the right material is chosen for the level of exposure. Granite has been used on building exteriors for centuries precisely because it handles rain, frost, UV, and pollution without degradation. Sintered stone like Dekton is engineered to withstand freeze-thaw cycles, prolonged UV exposure, and driving rain without any change in appearance or structural integrity. Porcelain is also frost-resistant in the thicknesses we supply for cladding applications. The key is matching the material to the exposure — a sheltered south-facing wall has different demands to a fully exposed coastal facade, and we assess these conditions before recommending a stone.
What panel sizes and thicknesses are available for stone cladding?
We fabricate cladding panels in virtually any size and thickness your project requires. Standard cladding thicknesses range from 20mm to 30mm for structural applications, while thinner formats of 6mm to 12mm are used for rainscreen systems and ventilated facades — particularly in sintered stone and porcelain. Panel formats range from standard modular sizes to large-format slabs covering several square metres in a single piece, which minimises visible joints. We cut every panel to your architect's exact dimensions using CNC machinery, including any cut-outs, mitres, returns, or bespoke profiles needed for your fixing system.
Can you supply stone cladding for commercial buildings and new developments?
Yes, we regularly supply precision-cut stone panels for commercial facades, mixed-use developments, and architectural projects across Hampshire and beyond. Whether it's large-format sintered stone for a contemporary office building, granite panels for a hotel entrance, or natural stone for a heritage restoration, we fabricate to architectural specifications and deliver panels ready for your contractor to install. We can work from CAD drawings, produce panel schedules, and supply material samples for planning applications and client presentations.
What is the difference between natural stone cladding and engineered stone cladding?
Natural stone cladding uses panels cut directly from quarried stone — granite, limestone, sandstone, or slate — and each piece carries unique natural variations in colour, veining, and texture. It has an authenticity and warmth that's difficult to replicate and is often the preferred choice for period properties and conservation areas. Engineered stone cladding includes sintered stone and porcelain — materials manufactured under extreme heat and pressure to achieve consistent colour, precise dimensions, and superior technical performance. Engineered panels are typically non-porous, UV-stable, and lighter than natural stone, making them easier to handle and fix. The choice depends on whether authentic natural character or consistent modern performance matters more to your project.
Does exterior stone cladding need sealing or maintenance?
Maintenance requirements depend on the material. Sintered stone and porcelain are non-porous and require essentially zero maintenance — rain naturally cleans the surface, and an occasional pressure-wash removes any biological growth in shaded areas. Granite is naturally hard-wearing and resistant to pollution, though an optional impregnating sealer can provide additional protection for lighter-coloured granites in fully exposed positions. Natural limestone and sandstone may benefit from periodic sealing and treatment for algae or moss, particularly on north-facing or shaded facades. When you consult with us on material selection, we'll explain exactly what maintenance — if any — your chosen stone will need over its lifetime.

What Our Customers Say

★★★★★
"Excellent Service and Beautiful Results - Highly Recommended! I recently had In2stone install new quartz worktops in my kitchen, and I couldn't be happier with the results. From start to finish, the experience was completely stress-free. The team was not only competitively priced but also incredibly friendly and professional throughout the entire process. They handled everything seamlessly - removing the existing sink, hob, and old laminate worktops before fitting the new quartz surfaces. The finished worktops are absolutely beautiful and have transformed my kitchen into a modern, minimalist space that I love spending time in. The quality of workmanship is outstanding, and the attention to detail really shows. I'm a very satisfied customer and would highly recommend In2stone to anyone considering new worktops. Well done to the entire team - you've exceeded my expectations!"
— Ashley ChapmanGoogle
★★★★★
"I've had two kitchen worktops from In2stone, both times the service and quality of the product has been great. Templating and fitting were also seamless. Definite recommend."
— Victoria BrindGoogle
★★★★★
"So pleased with my beautiful new worktops. In2stone were brilliant. From helping me to choose from their wide selection in the showroom, through the whole quote, template and installation process the service was excellent. I still have some decorating to do to complete the kitchen makeover, but the new worktops look fabulous. Highly recommend the team at In2stone."
— Shirley MoremanGoogle

Why Choose Us

Why In2stone

Real Stonemasons

Same team from quote to installation. No subcontractors, no call centres — just craftsmen who care about every cut.

"The difference between a stonemason and just suppliers of worktops is huge."

Robert Squire

The Quote Is the Price

No hidden costs, no surprises. We consistently beat competitor quotes — even online discounters decline to match us.

"Beat 6 other companies by a mile. Even an online company that claims to beat any quote declined to."

Dean Fitzpatrick

Customers Come Back

10-year relationships. Families who've had three kitchens done with us. That kind of trust isn't bought — it's earned.

"10 years ago had Ian and Kev do our kitchen… our daughter also used them… today had the team do our new place. 11/10."

Martine

Get In Touch

Let's talk about your new exterior stone cladding.

Whether you know exactly what you want or you're just starting to explore, we're here to help. Call the showroom, visit us in person, or request a quote — there's no hard sell, just honest advice from people who love what they do.

Open Monday–Friday 10am–4pm, Saturday 10am–2pm.

Luxury stone worktop installation by In2stone