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Business Details
13 Years
experience
Trusted Drainage Solutions for Commercial & Residential Projects
Established in 2013 by directors Patrick Walsh and Aiden O'Brien, PCW Drainage specialises in above and below ground drainage solutions. With over 60 years combined experience in the construction industry, our team delivers high-quality installations for commercial, residential, and industrial projects. We prioritise proactive project management, identifying design issues early to prevent delays.

Our SMSTS-trained operatives ensure compliance with health and safety standards, while our robust supply chain guarantees timely material delivery. We focus exclusively on public health drainage to maintain expertise, offering tested and certified systems with comprehensive documentation. Our commitment to quality has earned repeat business from respected clients across the UK construction sector.
Services
Drainage Installation Plumbing Services Commercial Projects Residential Projects Industrial Projects Basement Drainage Rainwater Systems Pumped Discharge Installations Shell & Core Packages Brownfield Site Drainage
Details
  • Year established: 2013
Highlights and features
  • 60+ years combined experience in construction industry
  • Proactive design issue identification before site problems arise
  • SMSTS-trained management and supervision teams
  • Robust supply chain with UK's leading drainage suppliers
  • Specialist focus on public health drainage systems
Services
Drainage Installation
We specialise in above and below ground drainage installations using cast iron, MDPE, and galvanized materials. Our expert teams ensure precision in challenging environments, from raft slabs to pump chambers. All installations include comprehensive testing and documentation for building compliance.
Commercial Projects
Delivering drainage solutions for office developments, retail spaces, and industrial facilities. Our proactive approach identifies design issues early, preventing delays. We handle projects from 2m contracts to minor works, maintaining quality across all scales with SMSTS-certified supervision.
Residential Projects
Providing reliable drainage systems for housing developments and private properties. We install shell & core packages, rainwater systems, and basement drainage. Our focus on quality ensures long-term performance, with tested systems documented for compliance and client peace of mind.
Industrial Projects
Specialist drainage solutions for manufacturing sites and brownfield developments. Our teams handle complex requirements including pumped discharges and water main installations. We maintain strict safety standards with independently audited health & safety protocols across all industrial projects.
Pumped Discharge Installations
Installing fusion-welded MDPE and galvanized pumped discharge systems. Our expertise includes designing efficient pump chamber configurations for commercial and industrial applications. We ensure compliance with environmental regulations while maintaining system reliability and longevity.
People
Patrick Walsh
Director
Co-founder with advanced plumbing qualifications and extensive construction industry experience. Manages project teams from pre-construction to completion, ensuring operational excellence and client satisfaction through 30+ years in the sector.
Aiden O'Brien
Director
Co-founder and qualified advanced plumber with expertise in estimation and surveying. Oversees tender enquiries and commercial aspects of projects, leveraging 30+ years' experience in plumbing and construction to deliver cost-effective drainage solutions.
Questions
What drainage services do you specialise in?
We focus on above and below ground public health drainage systems, including cast iron, MDPE, and galvanized pipework for commercial, residential, and industrial projects.
Which areas do you cover?
We operate nationwide across the UK, with particular expertise in London, Hertfordshire, Oxford, Birmingham, and the South East regions.
What project sizes do you handle?
We manage projects from small-scale installations to £2m contracts, adapting our approach to suit each client's specific requirements while maintaining quality standards.
Are your teams certified?
All management and supervision staff hold SMSTS qualifications, with operatives possessing relevant safety certifications for their specific roles on site.
How do you ensure quality?
We provide tested and documented drainage systems with signed-off test packs, ensuring compliance with building regulations and client requirements throughout the project lifecycle.