PJ Ryan Terrazzo — In-Situ Terrazzo & Mosaic Specialists, Dublin

01

Our Company

Established in the 1970s by Mr. P.J. Ryan, we are a family-based company of in-situ terrazzo artisans.

Dublin based, and in business for almost 50 years, we are long-time members of the National Guild of Master Craftsmen.

We primarily specialise in in-situ and pre-cast terrazzo works, although in more recent times we have also moved into polished concrete projects.

Our works include a long list of award-winning projects both large and small. We are proud to have worked with many of Ireland’s finest architects and designers on a series of high-profile and award-winning projects, as well as two appearances on RTÉ’s Beyond The Hall Door.

PJ Ryan Terrazzo carry out both domestic and commercial projects throughout Ireland. Site visits and quotations are provided free of charge.

We also provide custom-designed samples for architects and clients, specific to the particular project’s requirements. For further information see our contact details here.

1970sEstablished by Mr. P.J. Ryan
150 tItalian marble and glass held in stock
FreeSite visits, quotations and custom samples
GuildNational Guild of Master Craftsmen members

02

Services

02.1

In-Situ Terrazzo

In-situ terrazzo is a composite material, poured into place, which is used for floor and wall treatments. It consists of marble, quartz, granite, glass or other suitable chips, sprinkled or unsprinkled, and mixed with a cementitious binder.

The terrazzo is cured and then ground and polished to a smooth surface. It is sealed with a chemical hardener upon completion. At PJ Ryan we store upwards of 150 tonnes of Italian marble and glass in a variety of colours and sizes.

Upon request we can customise design samples for architects and clients until a preferred mix is achieved for the chosen project. This service is free of charge.

View our selection

Polished in-situ terrazzo floor reflecting daylight — Fig. 02.1

02.2

Pre-Cast Terrazzo

Pre-cast terrazzo can be created in almost any shape and size depending on the complexity and application. These units are produced in our workshop and brought to site in a finished state and fixed.

This allows us to use the same mix in both in-situ and pre-cast situations, so that an exact match is achieved when, say, matching pre-cast kitchen counters to an in-situ poured floor.

This is particularly useful to architects in order to achieve minimalist design.

Pre-cast terrazzo kitchen island matched to an in-situ terrazzo floor — Fig. 02.2

02.3

Polished Concrete

PJ Ryan use the HTC Superfloor™ method for grinding and polishing concrete. The HTC Superfloor method mechanically refines the concrete surface by removing the top cement paste and exposing the underlying stronger concrete.

Polished concrete is created using HTC Superfloor, a process of concrete grinding and polishing using diamond tooling and specialist grinding machines.

The result is a glossy concrete floor with a completely even surface of a high quality, both functionally and aesthetically.

Polished black concrete floor — Fig. 02.3

02.4

Refurbishing Terrazzo

Using modern machinery it is now possible to repolish old, dull terrazzo floors to a high-gloss, easily maintainable finish. Nails are removed or ground, holes filled, etc. Diamond abrasives of various types and coarseness are used. Water is used to minimise dust.

Once the drying process is complete, the final process of recrystallisation can commence. This is a chemical process that seals the floor and creates a high gloss that is harder than the stone itself.

This is a superior sealing method to the use of acrylic sealers which, in our opinion, should never be used.

Dull, worn terrazzo floor before refurbishment — Before

Terrazzo floor repolished to a high gloss — After

03

Marble Selection

Upwards of 150 tonnes of Italian marble and glass, in a variety of colours and sizes.

Upon request we can customise design samples for architects and clients until a preferred mix is achieved for the chosen project. This service is free of charge.

Mix: Bianco Carrara, Botticino, Giallo Siena, Nero Ebano
Binder

Illustration only. Select up to six marbles.

04

Portfolio

In-situ terrazzo works are highly specialised in nature, requiring experienced workers with a keen attention to detail, as borne out in our legacy of projects.

We have worked with some of Ireland’s finest architects on projects such as: