Pettit Singleton Associates (PSA) is one of the North West's most respected Building Services Engineering practices, with offices located in Preston Docklands and at Warwick Bridge, Carlisle.
Our team's mission is to provide the highest standard of service to our clients, with the aim of creating strong and trusted relationships whilst offering innovative and practical building services solutions.
This has led to PSA being awarded many prestigious and technically demanding projects, such as the expansion of the Victoria Warehouse in Trafford, a nationwide upgrade of sprinklers for social housing, the first non-domestic Passivhaus (EnerPHit) compliant office refurbishment, £20m upgrade to Crow Wood's Woodland Spa, and a new housing development being built on the old Sale Magistrates site.
As well as our unrivalled experience in healthcare, having worked for most of the North West's NHS Trusts, we also have strong ties to education, public sector, industrial, commercial, leisure, and defence sectors.
The key to our success and growth over the years has been our total commitment to quality and service that is reflected in the projects we deliver.
Ultimately, our success can be measured by client satisfaction, which is why we are proud that over 80% of our work is repeat business from existing clients.
Our services include:
- Building Services Engineering
- Mechanical Design
- Electrical Design
- Building Compliance
- Energy & Sustainability
- Project Management
- Clerk of Works
- Authorising Engineer
- Culture
- Defence
- Energy including CHP
- Expert Services
- Healthcare
- Historic Buildings and Conservation
- Infrastructure and Transport
- Interiors and Fit-out
- Laboratories
- Religious
- Residential
- Secure Accommodation
- Sports
- Water
- Acoustics
- Acquisition and Condition Surveys
- Adjudication and Arbitration
- Arts
- AS Installed Drawings & Surveys
- BMS and Controls
- Building Control
- Building Operation
- Building Refurbishment
- Building Services Coordination
- Building Simulation
- CCTV Installation
- Central and Local Government
- Combined Heat and Power - CHP
- Commercial Mediation Service
- Commissioning and Testing
- Computer Modelling and Simulation with CFD
- Construction Management
- Cost Control
- Dilapidations
- Display Energy Certificates - DECs
- Electrical Services (including Lighting)
- Energy Audits
- Energy Performance Certificates - EPCs
- Energy Purchasing
- Energy Utilisation
- Environmental Management
- Expert Witness
- Facade Design Analysis
- Facilities Management
- Fire Engineering
- Government
- Health & Safety
- Heat Pumps
- Heating
- High Voltage Power
- Hotels and Hostels
- Housing Installations
- HV Networks
- Infrastructure and Transport
- Insurance Investigation
- Intelligent Buildings and Controls
- IT
- Lifts & Escalators
- Lighting Specialisms
- Low Carbon Consultants
- Low Energy and Sustainable Design
- Maintenance and Surveys
- Mechanical Services
- Medical Gases
- Operating and Maintenance Manuals
- Planning Guidance
- Power
- Project Management
- Public Health Services
- Refrigeration
- Renewable Energy
- Security
- Services Resilience Studies
- Small Wind Generators
- Solar Energy Applications
- Solar Hot Water Systems
- Sprinkler and Fire Fighting Systems
- Steam and Compressed Air
- Sustainability and Energy
- Sustainable Masterplanning
- Telecoms and Audio Visual
- Total Preventative Maintenance
- UPS and Generators
- Ventilating & Air Conditioning
- Wind Turbines
- North West England