TankBuilder is a global leader in the design and manufacture of high-performance pressure vessels. Using our own custom-built design software, we deliver bespoke solutions tailored to each project, ensuring compliance with PED, EN13445, and PD5500. From cutting and rolling heavy plate to robotic and coded welding, our advanced manufacturing capabilities allow us to construct vessels up to 300,000 litres and 15 bar working pressure with precision and reliability. With projects successfully delivered to Frankfurt, Milan, Paris, London and beyond, TankBuilder has established itself as a trusted international manufacturer known for quality, innovation, and scale.

What We Do
Design
Custom-built software to streamline the design of bespoke buffer tanks, fully aligned with EN13445 and PED standards.
Manufacturing
From raw material to finished tank, our modern manufacturing facility ensures accuracy, efficiency, and uncompromising quality at every stage.
Certification
We design and manufacture in strict accordance with PED, EN13445, and PD5500 standards. Through close collaboration with notified bodies, we can achieve full certification on tanks to meet customer and project requirements.
Design

With TankBuilder, customers have full control over designing a production-ready tank, tailored to their exact needs. Our intuitive software allows users to select key parameters, while TankBuilder automatically handles all manufacturing considerations, ensuring a seamless transition from design to production.
Through their personalized customer portal, users receive an instant 3D CAD file to integrate into their BIM models, along with real-time pricing that reflects the latest material and manufacturing costs. Every detail like finishes, insulation options, and custom specifications can be configured within the software, giving customers complete visibility into their final product before it’s built.
Special requests?
No problem, TankBuilder makes customization simple, delivering precision, efficiency, and total confidence in every design's.
Design With Precision
Define your tank’s key parameters, and TankBuilder takes care of the technical details, ensuring a fully manufacturable design.
Flexible Customization
Choose from a range of finishes, insulation types, and other custom options, so you know exactly what your final tank will look like.
Customer Portal
Access your designs, quotes, and orders anytime through your personal customer portal, keeping everything in one place.
Fast Quoting
Get real-time pricing updates and receive a competitive quote in just a few clicks, eliminating guesswork and delays.
Manufacturing
At TankBuilder, our manufacturing capabilities are built around precision, scale, and innovation. From heavy-duty plasma and laser cutting to advanced welding processes, polyurethane insulation, and automated handling systems, our facility is equipped to deliver buffer tanks of the highest quality.
Every stage of production — from raw steel to final assembly — is carried out under strict quality control, ensuring compliance with PED, EN13445, and PD5500. With the capacity to produce everything from bespoke one-off designs to large-scale district heating installations, our state-of-the-art plant combines skilled craftsmanship with the latest technology to meet the most demanding engineering requirements.
300m³ Tank Capacity
We have the capability to design and manufacture buffer tanks up to 300,000 litres, combining large-scale fabrication expertise with full compliance to PED, EN13445, and PD5500 standards.

Robotic Welding
Our robotic welding systems deliver precision, consistency, and efficiency, ensuring the highest quality welds.

15 Bar Working Pressure
Our tanks are engineered for demanding applications and can be constructed for working pressures of up to 15 bar.

Coded Welders
Our team of coded welders bring expertise and craftsmanship to complex fabrications, ensuring every tank meets the highest standards of safety and quality.

25mm Rolling Capacity
With a rolling capacity of up to 25mm, we can fabricate heavy-duty shells and components with precision for large-scale buffer tanks.

40mm Cutting Capacity
Our facility is equipped with cutting technology capable of handling steel up to 40mm thick, ensuring accuracy and flexibility in fabrication.






Compliance & Certification
TankBuilder designs and manufactures in strict accordance with PED, EN13445, and PD5500 standards.
Our processes are fully traceable and quality-controlled, giving customers complete confidence in the integrity of every tank we produce. Where certification is required — whether specified by the customer or dictated by the design — we arrange for an accredited notified body to oversee design verification, manufacturing, and final inspection.
This ensures full compliance and official certification, so every TankBuilder vessel meets the highest regulatory and safety standards.
EN13445
EN 13445 is the European standard for unfired pressure vessels, setting strict rules for safety and design. At TankBuilder, we design and manufacture fully in line with this standard, supported by our custom software and quality controls.
PD5500
PD5500 is the UK standard for unfired pressure vessels, widely recognised for its detailed design and safety guidance. When required, TankBuilder manufactures in full compliance with PD5500, applying rigorous quality control at every stage.
ASME
The ASME Boiler and Pressure Vessel Code (BPVC) is the internationally recognised standard for pressure vessel design and manufacture. TankBuilder can design and build vessels in line with ASME requirements, ensuring the same precision and quality we apply to European standards.
Meet The Team

Managing Director
Shane Molloy

Production Manager
Raimundas Grundzinskas

Business Development Manager
Jhanvi Gami
Contact Us
Address
Contact
Opening Hours
Geraldine Road,
Athy,
Co. Kildare
Republic Of Ireland
+35387-9547301
Mon - Fri
7:30 am – 5:30 pm



