Paving Block Factories in Indonesia 2026: Conbloc, Masterblock, Aston Addresses

Paving block factories in Indonesia that publish an address on their sites as of 23 October 2026 include National Precast at Jl. Gotong Royong No. 77, Gunung Sindur, Tangerang ("office and factory"), Aston Conbloc with a factory at Jl. Tempel Turi Km 2, Tempel, Sleman, and Nusacon at Jl. Cangkringan No. 68, Kalasan, Sleman. Masterblock Indonesia only mentions a marketing office in Serpong and a factory in Bogor, while Conbloc and Kalla Beton do not give a street address on the pages we read. For conblock and kerb manufacturers Indonesia, Masterblock lists paving, conblock, kerbs and grass block, while Conbloc names paving block and kerbs in its site title. These paving block factory address Indonesia entries are quoted from each site and not checked on location; capacity and factory prices are not published.
Paving block factories in Indonesia: addresses and products from company sites
| Company / brand | Address (per site) | Products (per site) | Contact | Source |
|---|---|---|---|---|
| Conbloc (The Real Conbloc) | Not stated on the contact page we read | Paving block and kerbs; claims to be the first paving block maker in Indonesia with 50+ years (site bio: since 1974); also Flexitile wall panels (site claims) | Contact form on the site; the email shown is a placeholder (conbloc@email.com), not an official contact | Conbloc |
| PT Masterblock Indonesia | Marketing office in Serpong, South Tangerang; factory in Bogor (street not given) | Paving block, conblock, kerbs, grass block; since 2009; four grades: Bronze 300, Silver 350, Gold 400, Platinum 450 kg/cm2; fully automatic German-technology machines (site claim); installation service too | See the contact page on the site | Masterblock |
| National Precast | Jl. Gotong Royong No. 77, Gunung Sindur, Tangerang (written as "Office & Factory") | Paving block; the page title mentions concrete U-ditch; site articles cover paving block, U-ditch, concrete culverts and fence panels | Sales: 0812 9079 9963 / 0813 9079 9963; nationalconblock@gmail.com | National Precast |
| Nusacon | Jl. Cangkringan No. 68, Tirtomartani, Kalasan, Sleman, Yogyakarta 55571 | The contact page does not list products (the email address contains the word "conblock") | Telp/WA 087739405170; nusantara.conblock68@gmail.com | Nusacon |
| Aston Conbloc (CV Aston) | Factory: Jl. Tempel Turi Km 2, Tegalrejo, Margorejo, Tempel, Sleman; office: Jl. AM Sangaji 86, Karangwaru, Tegalrejo, Yogyakarta | Brick, square, 3D and hexagon paving and grass block; the site keywords mention K200, K300 and K400 grades and "SNI" (site claim) | Telp (0274) 288688 / 777 8030; WA 081 128 0665 / 081 126 57557 | Aston Conbloc |
| Kalla Beton | Not stated on the product page we read | Precast paving block grades K-250, K-300, K-400; size 10.5 x 21 cm, 6 cm thick (about 3 kg) or 8 cm (about 4 kg; K-400 about 5-6 kg); 1 m2 = 45 pieces | See the product page on the site | Kalla Beton |
Addresses, phones and claims are quoted from each site as of 23 October 2026; none were verified on location. Sites do not always explain whether an address is a factory, an office or a warehouse; only National Precast ("Office & Factory") and Aston Conbloc (separate factory and office) say so. The "pioneer", "German technology" and "SNI" statements are company claims, not data we tested. Production capacity, headcount and factory prices are not published. Rani Block and Asiacon are not included because their sites could not be read or their data could not be verified; this is not a complete list. The bank accounts shown on the Aston page are not quoted. Store prices per m2 are covered in our paving price article.
How many paving blocks per m2? homeX calculation for a 20 m2 terrace
Kalla Beton writes a paving size of 10.5 x 21 cm and 1 m2 = 45 pieces. homeX calculation: 10.5 x 21 cm = 0.02205 m2 per piece, so 1 m2 is about 45.4 pieces (no joints, no cutting waste). A 20 m2 terrace needs about 900 pieces, or about 945 pieces with 5% cutting waste (the 5% is a homeX assumption, not factory data). Masterblock cites grades of 300-450 kg/cm2 and Kalla Beton K-250 to K-400; higher grades are usually chosen for vehicle areas, but ask the factory for the specification and written compressive-strength test results.
How to choose a paving block factory for a project
Call first to confirm whether the address is a factory rather than an office, then ask for samples, grade specifications, the production schedule and delivery cost to your site. The factories in Tangerang and Bogor are closer to Greater Jakarta, while Aston Conbloc and Nusacon are in Sleman, Yogyakarta. Make sure the quote states thickness, grade (K or kg/cm2), colour and whether installation is included.
Buyer tips
- Call or WhatsApp first to confirm the address is a factory before visiting.
- Ask for thickness and grade (K or kg/cm2) in writing.
- Ask for paving samples and compressive-strength test results.
- Compare factory prices with store prices in our paving price article.
Request a paving block factories in Indonesia quote for your project
homeX can compare several brands at once and prepare a written quote for projects, renovations or shop stock. Send your needs (brand, size, quantity, location) via WhatsApp +62 821 1818 998, or visit the homeX showroom: Priskilla Tower, 6th floor, Jl. Atang Sanjaya No.21, Benda, Kota Tangerang, Banten 15125. Visit the homeX Showroom.
Disclaimer: prices change without notice and differ by store, city, pack size, grade and promotion. Data as of 23 October 2026; always confirm with the seller before buying.
FAQ
Where is the National Precast paving block factory? The National Precast contact page lists "Office & Factory" at Jl. Gotong Royong No. 77, Gunung Sindur, Tangerang (as of 23 Oct 2026).
How many paving blocks per m2? Kalla Beton writes 1 m2 = 45 pieces for the 10.5 x 21 cm size. Add cutting waste according to the laying pattern.
Do all the factories publish prices? Not on the pages we read; factory prices are not published, so request a written quote.
Paving block factories in Indonesia: related articles and products
Related articles:
- Paving block price per m2 2026
- Lightweight brick factories in Indonesia
- Cement factories in Indonesia
- Rebar and steel factories in Indonesia
- Ready mix factories in Indonesia
Related products at homeX:
Price sources (checked 23 October 2026): Conbloc — Conbloc contact page; Masterblock — Masterblock Indonesia About page; National Precast — National Precast contact page; Nusacon — Nusacon contact page; Aston Conbloc — Aston Conbloc services page; Kalla Beton — Kalla Beton paving block page.