Specialist Venetian plaster, polished plaster and marble-effect finishes for London period homes, prime apartments and commercial spaces — craftspeople since 1959.
Borthwick Decorators applies specialist Venetian plaster, Marmorino, Stucco Veneziano and polished plaster across London. We work on residential property from Kensington and Chelsea to Mayfair and Notting Hill, and on commercial interiors in London's hospitality, retail and office sectors — established as a heritage decorating company since 1959.
Venetian plastering, Marmorino, Stucco Veneziano and polished plaster sit at the premium end of London’s decorating market. Each is a hand-applied technique with a centuries-old Italian heritage, capable of transforming a wall into an architectural focal feature with the depth and light-catching quality of polished stone. Each is also a technique that needs the right experience, the right materials, and the right project programme to execute properly.
Borthwick is a Scottish heritage decorating company — established in 1959 — bringing more than six decades of craftsmanship into the London market. We work on London’s period townhouses, prime residential conversions, listed buildings, hotels and commercial interiors. For interior designers and architects writing finish-level briefs into the specification: we work to drawings, attend site meetings, and provide on-site sample boards before application begins.
This page covers the technique, the variants, the application sequence, indicative cost and the practical considerations of commissioning Venetian plaster in London. For the dedicated London hub or for our wider specialist decorative finishes coverage, follow the links throughout the page.
Venetian plaster is the umbrella name for a family of polished plaster finishes whose roots are in Venice from the 14th century onward. Traditional Italian formulations combine slaked lime with finely-ground marble dust; modern variants substitute acrylic binders for ease of application. The finished surface is hard, sealed against staining, and — properly cared for — lasts decades in residential settings.
Marmorino is the most versatile variant: a fine marble-aggregate finish that can be left matte or burnished to a medium sheen. Suited to most residential and commercial applications, capable of subtle colour variation, and the workhorse of contemporary London polished plaster projects.
Stucco Veneziano is the high-gloss traditional formula — a mirror-sheen finish burnished by hand over multiple thin coats. It is the most labour-intensive of the variants and the most striking visually; period London townhouses and high-end commercial reception spaces are its natural setting.
Polished plaster as a broader category covers the modern product family — typically acrylic-modified Venetian-style finishes that bring application speed and consistency to larger commercial projects. We use modern polished plasters where the project scope and substrate suit them.
Microcement is a related seamless contemporary finish for walls, floors and wet rooms — polished-concrete aesthetic without the structural weight. We mention it because clients researching Venetian plaster sometimes find microcement is a better fit for the brief.
London’s residential market for Venetian plaster spans several distinct types of property. Georgian townhouses in Mayfair, Belgravia and Knightsbridge — high ceilings, ornate cornicing, formal proportions — are the historical context Venetian plaster was designed for. Victorian conversions across Kensington, Chelsea, Notting Hill and Hampstead use polished plaster as a sophisticated focal-wall finish. Lateral apartments and new-build developments in Westminster, Marylebone and Richmond use Marmorino or Stucco Veneziano as a premium alternative to wallpaper or paint.
We work across central London for residential Venetian plastering. Kensington, Chelsea, Belgravia, Knightsbridge, Notting Hill, Mayfair, Hampstead, Richmond and Wimbledon are the cores of our residential coverage; outer-borough enquiries are taken case-by-case.
For high-end residential clients: Borthwick’s positioning is craftspeople first, contractors second. Our painters and decorators are named, employed members of the company — not subcontractors brought in for the job. Polished plaster work is delivered as part of a wider decorating package; we co-ordinate with cabinetmakers, joinery contractors and interior designers as needed.
For commercial Venetian plastering in London: the hospitality, retail and serviced-office sectors are the major demand drivers. London hotels use Marmorino in lobbies and reception spaces for the depth and durability it provides over wallpaper or paint. Restaurants use Stucco Veneziano in dining rooms and bars as a focal architectural feature. High-end retail uses polished plaster as the backdrop for product display. Serviced office operators — WeWork-class through to traditional managed-office providers — increasingly specify polished plaster for reception areas and meeting rooms as a finish that survives high-traffic use better than paint.
What London commercial clients consistently require, and what most polished plaster specialists struggle to provide, is procurement-grade compliance. CHAS is the procurement-stage requirement for almost every London commercial site of meaningful scale. SafeContractor and SMAS accreditation similarly gate access to managed-office, retail-chain and hospitality-group work. Borthwick holds all three. That, combined with our actual capability in polished plaster as a technique, is what makes the company viable across both ends of the London market.
Each Venetian plastering project follows a defined sequence. Skipping or rushing any step compromises the finish.
We visit, measure, assess the substrate condition, advise on finish type (Marmorino vs Stucco Veneziano vs polished plaster), and discuss the project programme. Sample boards prepared off-site.
Walls must be sound, level and properly keyed. Existing painted walls need cleaning and a primer coat. Uneven walls may need skim-plastering. Preparation is where long-term durability is won or lost.
The base coat is the substrate for the finish coats above. Applied evenly, allowed to cure properly. Typically a tinted base in the chosen colour family.
Two thin finish coats applied with a steel trowel, each allowed to set partially before the next. Even application across the whole surface; visible joins compromise the finish.
Hand-burnishing the finish to the chosen sheen level. This is the step that distinguishes Venetian plaster from any other wall finish. Matte, satin or high-gloss — the burnishing technique controls the result.
A wax or sealing layer is applied to protect the finished surface against staining and to consolidate the sheen. The finish is fully cured several weeks after sealing.
We provide written aftercare guidance covering cleaning, light damage repair, and recommended interval for re-sealing in high-traffic environments.
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London has more than 6,000 listed buildings and more conservation areas than any other UK city. Both require sympathetic finishes for interior alteration and refurbishment. Traditional lime-based Venetian plaster is conservation-appropriate — it is breathable, chemically compatible with traditional substrates, and visually consistent with historic interior schemes. For listed property in Mayfair, Belgravia, Knightsbridge and Westminster, polished plaster on a lime base is often a workable finish where modern alternatives would not be approved.
Borthwick has been working with traditional materials — lime wash and traditional polished plasters — from our Edinburgh base since 1959. We work to conservation officer requirements, attend site meetings with Historic England representatives, and prepare on-site sample boards for approval before application begins. Our trade accreditations — CHAS, SMAS, SafeContractor, PDA and SDF — make us viable for council-supervised conservation work.
For commercial Venetian plastering in London — hotels, restaurants, retail, reception spaces and serviced offices — those same accreditations open access to sites where a sole-trader Venetian specialist cannot bid. London commercial work typically requires CHAS as a procurement-stage requirement; many of London’s well-known polished plaster specialists are unable to meet that bar.
Venetian plaster vs wallpaper. Wallpaper has the broader pattern and texture range but a finite lifespan — 7–15 years before replacement — and it cannot be touched up; damage requires a fresh roll-out. Venetian plaster is a permanent installation; damage is hand-repaired into the existing finish without visible seams. For a high-traffic London room — hallway, drawing room, restaurant interior — the per-decade economics favour polished plaster.
Venetian plaster vs paint. Paint is the obvious cost-anchor at the low end. A premium emulsion repaint typically lasts 4–7 years before the wall looks tired and needs reapplication. Venetian plaster lasts 10–20 years or longer in residential settings. The initial cost is meaningfully higher; the per-year cost over a 20-year horizon is often comparable or lower than repeated repainting. The aesthetic difference — light-catching depth versus flat colour — is the determining factor for most clients.
Venetian plaster vs modern plaster. Modern gypsum plaster is a structural finish — it levels and prepares a wall for paint or wallpaper. Venetian plaster sits on top of that prepared substrate as a decorative layer. They are not alternatives; they are different layers of the same wall build-up. A Venetian plaster project typically includes substrate preparation that may involve gypsum skimming before the polished plaster application begins.
London coverage: Westminster, Kensington & Chelsea, Mayfair, Belgravia, Knightsbridge, Notting Hill, Camden, Islington, Hackney, Tower Hamlets, Southwark, Lambeth, Wandsworth and the City of London. See our London hub for the full neighbourhood list.
Venetian plaster cost in London: Polished plaster sits at the premium end of the London decorating market. Marmorino on prepared walls typically falls within a wide £120–£220 per m² range; Stucco Veneziano at the higher end of that band; modern polished plaster products at the lower end. Substrate condition (whether existing walls need preparation or skim-plastering), access (working at height, listed-building access restrictions), and finish-level (matte vs high-gloss) all move the figure within and beyond that range.
For a useful comparison: a properly applied Venetian plaster finish lasts 10–20 years or longer in residential settings, where paint typically needs reapplication every 4–7 years and wallpaper every 7–15 years. Over a 20-year horizon, the per-year cost of polished plaster is often comparable to repeated wallpapering and lower than premium wall-covering products.
Written quotes are produced after a site visit. Get in touch and we will arrange one within a working day. Related decorative finishes pages below.
Polished plaster sits at the premium end of the London decorating market. Marmorino typically falls within a £120–£220 per m² range on prepared walls; Stucco Veneziano sits at the higher end; modern polished plasters at the lower end. Substrate condition, access logistics and finish-level all affect the final figure. Written quotes are produced after a site visit.
We work with traditional Italian Marmorino and Stucco Veneziano, modern polished plaster product families, and on request Tadelakt and microcement for related contemporary projects. The choice of variant depends on the substrate, the room use, the finish-level required, and the project budget. We advise during the consultation visit.
Yes, in most cases. Existing painted walls usually need cleaning and a primer/key coat applied; uneven walls may need skimming first. For listed property or conservation-area work, the substrate preparation specification typically requires lime-compatible materials throughout. We assess substrate condition during the consultation.
Yes — London hotels, restaurants, retail interiors and serviced offices are a regular part of our commercial Venetian plastering practice. We hold CHAS, SMAS and SafeContractor accreditations — the procurement-stage requirements for most London commercial sites. Many polished plaster specialists cannot meet these requirements.
A typical room-size Marmorino project takes 5–12 days depending on size, substrate preparation, and finish level. Stucco Veneziano takes longer — sometimes 2–3 weeks for a full reception room — because of the additional burnishing labour. Commercial programmes are scoped against the operator's opening hours.
Almost always yes — polished plaster is the historical finish that Georgian and Victorian architecture was designed against. The proportions of period London rooms (high ceilings, ornate cornicing, formal symmetry) suit Marmorino and Stucco Veneziano particularly well. For listed property we discuss conservation officer requirements during the consultation visit.
Public liability insurance to £10 million.
