Some signs don’t fit a category. A gold leaf initial laid directly onto a textured wall. Menu cases finished in brass and blackened metal for a restaurant entrance. Lettering set into stone gate piers, a portal that frames a whole doorway, or a feature wall that becomes the thing people photograph. This is the work that starts with a question rather than a product code.
We design, engineer, make and install bespoke architectural signage and feature pieces from our workshop in Bolton, Greater Manchester, for architects, interior designers, developers, hospitality and retail brands anywhere in the UK.
What we make
- Feature walls, murals and statement installations for receptions, stairwells and public spaces
- Gold leaf and specialist finishes, applied directly to walls, glass and stone
- Architectural lettering set into stonework, cladding, canopies and entrance portals
- Menu display cases and illuminated menu frames in brass, bronze and blackened metal finishes
- Suspended lettering and menu boards for restaurants, bars and food halls
- Commemorative, heritage and blue plaques
- Bespoke display cases and retail feature installations
- Large one off structures, engineered and installed to suit the site
From concept to installation
Bespoke work usually starts with a sketch, a mood board or an architect’s drawing. We turn that concept into something buildable: choosing materials, working out how each piece is made, fixed and lit, and producing detailed drawings for approval. Where a finish or detail needs proving, we make samples and prototypes first, so the result on site is exactly what everyone signed off.
Materials and finishes
We work across metals, acrylics, timber, glass and stone, with finishes including brushed and polished metals, brass and bronze effects, patinated and blackened metals, gold leaf, and paint matched to any RAL or Pantone reference. Illuminated pieces use long life LED modules, detailed so the light source stays hidden.
Engineered where it needs to be
Larger pieces and anything freestanding or overhead is treated as a structure. Where a design calls for it, pieces are backed by structural calculations, BS EN 1090 steelwork, hot dip galvanised as standard, and fixings designed and pull tested for the substrate. Calculations and certification are included in the handover documentation.
Working with architects and designers
We regularly work alongside architects, interior designers and brand agencies, developing their concepts into buildable details and delivering them on site. We can work to your drawings, contribute technical input at design stage, or take a concept all the way from first sketch to installation.
Based in Manchester, working across the UK
We are based in Bolton and install bespoke pieces across Manchester, Greater Manchester and the North West every week. We also deliver nationwide, from single statement pieces to multi site brand rollouts.
Why clients choose SPI
- ISO 9001 quality, ISO 14001 environmental and ISO 45001 health and safety certified
- Principal Contractor accreditation with SafeContractor
- Over 250 years of combined experience across our team
- Concept, engineering, manufacture and installation handled by one company
Questions we’re often asked
What counts as bespoke architectural signage?
Anything that doesn’t fit a standard product: feature walls, gold leaf and specialist finishes, lettering built into the architecture, menu cases, plaques, display cases and one off structures designed for a specific space.
Can you work from an architect’s or designer’s concept?
Yes. We regularly develop concepts from architects, interior designers and brand agencies into detailed, buildable designs, then manufacture and install them.
Can we see samples before it is made?
Yes. For finishes and details that need proving, we produce physical samples and prototypes for approval before manufacture.
How long does bespoke work take?
It depends on the design. We agree a programme at the start, including design development, samples, approvals, manufacture and installation, and plan it around your opening or handover date.
Are larger bespoke pieces structurally designed?
Yes. Where a design calls for it, pieces are backed by structural calculations, BS EN 1090 steelwork and fixings designed and tested for the substrate.
Do you work outside Greater Manchester?
Yes. We are based in Bolton but deliver bespoke work across the whole of the UK.
Got an idea that doesn’t fit a category? Send us the concept, a sketch or a mood board and we’ll tell you how we’d make it.
You can contact us in the following ways.
Check out our recent work
Explore our products
Illuminated Signage
Face lit, halo, edge lit and infinity mirror letters, lightboxes, fascias and neon, all LED.
Fascia & Projecting Signs
Shopfront fascias and projecting signs, lit or unlit, installed UK wide.
Printed Products
Window graphics, wall murals, vehicle livery and large format print, installed UK wide.
Hoardings
Hoarding and Heras graphics, printed in Bolton and installed on sites across the UK.
Interior Signage
Door, room and directional signs finished to match your interior.
Tactile & Braille Signage
Tactile and Braille signs with raised lettering and Grade 2 Braille, designed to BS 8300 and installed across the UK.
Digital Signage
Commercial grade screens, menu boards and digital totems, built into your signage and easy to update.
Wayfinding
Wayfinding schemes, fingerposts, map monoliths and internal directional signs.
Built Up Letters
Metal and acrylic built up letters, lit or unlit, installed UK wide.