The company Alfredo Polti SA, a typical family business, is active in the industrial sector of natural stone. It was founded by Alfredo Polti in 1950, with the launch, in Grono, of a workshop for the processing of the Gneiss Calanca. The pioneer was however Alfredo’s father, Giovanni Polti, who in 1920 was involved in the extraction and processing of the Gneiss Calanca in the quarries of Arvigo, where in 1960 Alfredo Polti transferred the entire production. The extraction of the stone from its own quarries and its elaboration in new and modern laboratories thus became two integrated phases of a single production process. The Gneiss Calanca extracted from the quarries Alfredo Polti SA is treated in modern laboratories, where expert stonemasons transform it manually or mechanically, thanks to the help of the most modern machines for working with stone. Moreover, part of the material is put on the market in the raw state, in the form of blocks, irregular or quadrangular slabs, or masonry stones. The available offer is vast and includes products for: • the substructure • the superstructure • the construction and furnishing of parks, gardens, squares and cemeteries • the creation of artifacts able to satisfy the most demanding dictates of modern architecture of exteriors and interiors. About 90% of production is destined for the Swiss domestic market. The remainder is exported, in particular to Germany, Italy, Austria and France. In many cities of these countries you can admire important works realized with the Gneiss Calanca by Alfredo Polti SA produced in Arvigo. After the death of the founder Alfredo Polti, the company was taken over by: Giovanni Polti, who takes care of the extraction and production processes and Vania Polti Ambrosini, who guarantees administrative management. Since 2013, Alfredo Polti SA remains the only active quarry in the Calanca valley. Most of Alfredo Polti SA's collaborators have many years of service in the company, synonymous with experience and professionalism at the service of customers. Since May 2007 the company is ISO 9001 certified.

Ongaro & Co SA is a family company with a long history in stone masonry that, starting in 1930, grew over the course of three generations into one of the most successful stone quarrying and fabrication operations in Switzerland. Located in Cresciano, Ongaro & Co SA traditionally supplies from its own quarries the homonymous and precious Gneiss. Since 2011 the company has also been extracting the elegant Bodio Nero. Part of the company collection and available upon request, we also supply and work Gneiss extracted from Andeer, Calanca, Iragna, Maggia and Onsernone. A wide choice of colors and finishes are offered to meet the requirements of the customers. Thanks to a craftsmanship consolidated over many decades and the use of increasingly advanced machinery and equipment, Ongaro & Co SA aims at an ongoing progress in the development of new projects, innovative product lines and services. With the spirit of constant evolution the company transforms basic raw materials into unique products, thus renewing the traditional Swiss granite industry. Products: • Raw material • Masonry • Road and highway construction • Garden features • Urban furniture • Massive stone constructions • Custom stone elements • Flooring • Stairs • Elements in pre-stressed Gneiss • Indoor Furniture • Art • Funerary elements

CURIOSITIES & EVENTS - CONTACTS 🔨 Since the 1960s, Giannini Graniti has been dedicated to granite processing, developing increasingly sophisticated technological expertise. 🏗️ 🏭 The production organization allows for the swift fulfillment of any order with any type of processing. ⏳ 🏅 The company was the first in its field to obtain ISO 9001 , ISO 14001 certifications, and the Ticino label. ✅ 🌍 Thanks to the dynamism of the Giannini family , Giannini Graniti of Lodrino has been, and will certainly continue to be in the future, a company focused on tomorrow . 🚀 🛠️ Products & Catalogs : • Tables 🪑 • Pergolas 🌿 • Paving 🏞️ • Windbreaks 🌬️ • Grills 🍖 • Sofa Leaving 🛋️ • Furniture 🏠 • Coffee tables 🪟 • Benches 🪑 • Outdoor stairs 🏞️ • Window sills and thresholds 🪟 • Palisades 🌳 • Facing walls 🧱 • Wall stones 🪨 A modern and innovative way to work with granite! ✨

Materiali da tutto il mondo: marmo,granito,parquet e grès. Molto professionali e con esperienza pluriennale (da 100anni a Locarno). Prezzi competitivi. Hanno anche mobili e accessori in pietra moderni fantastici

Bring life to your garden Biotopes and ponds - the so-called wetlands - are a precious treasure for the environment from an ecological point of view. These graceful expanses of water also represent a real pleasure for the eyes and the senses thanks to the immediate sense of calm that they can convey. To allow you to create a relaxing corner directly in your home, we offer you the possibility of further beautifying your garden with a pond, where you can grow various aquatic plants as well as hosting fish, turtles and amphibians for the joy of adults and children. Sale The right essences for your space Is gardening your passion and does it no longer have any secrets for you? Or do you simply want to create a livelier atmosphere outside and inside your home but don't have the famous green thumb? At our store in Bellinzona you can satisfy all your desires. Flooring We create paths in your green space Do you want your garden to have a tidier appearance or do you want to create comfortable passages or spaces in which to install a barbecue area? Call us and we will meet your expectations! Thanks to our experience in the flooring field, we will design with you paths and surfaces in wood, granite, gravel, gneiss or tiles that are long-lasting and easy to maintain. We sell indoor plants, perennials or annuals, fruit plants as well as trees and shrubs. Come and visit us and we will be happy to advise you in the best possible way so that you can better understand and appreciate the wonderful world of greenery. Services: • Parks, gardens and terraces • Granite and wood flooring • Granite walls, walkways and stairs • Wooden pergolas, railings and screens • Metal pergolas and fences • Water features, waterfalls, ponds, fountains and biotopes • Roof gardens and terrace greening • Automatic irrigation systems • Street furniture and playgrounds • Greening structures and systems • Garden construction • Ponds and biotopes • Paving • Avenues and pathways • Barbecue areas • Irrigation • We sell indoor plants, perennials and annuals, fruit plants as well as trees and shrubs. • Come winter, we take care of your garden: • Soil preparation • Winter pruning • Pruning fruit plants • Planning next year • Treatments • Maintenance • Garden cleaning • Annual maintenance subscriptions

Sehr nette und kompetente Beratung, die Umsetzung ist 100% gelungen.