O'Neill & Brennan

Assistant Design Manager - Facade Remediation - Central London Salary: £35,000 - £40,000 + package O'Neill and Brennan are currently working with a well-established contractor delivering a growing portfolio of faade remediation projects across London. Due to continued growth, they are seeking to appoint an Assistant Design Manager to join their Central London office click apply for full job details

A growing main contractor is seeking an experienced Senior Site Manager / Project Manager to join their team in the Somerset & Devon region. This role involves managing construction projects valued up to £10m, ensuring high-quality delivery, compliance with health and safety standards, and maintaining strong client relationships. The ideal candidate must have a background in main contracting, leadership, and relevant safety qualifications. This is a fantastic opportunity with a supportive business and a strong pipeline of work.

Site Manager - Number 1 - Residential £65(Apply online only) - £7(Apply online only)0 Location: Hemel Hempstead Start: April 2026 Description Site Manager - Property Developer - Hemel Hempstead Salary: £65,(Apply online only) - £70,(Apply online only) A leading housing/property developer is seeking a Site Manager to join their team to work on a beautifully designed residential project near Hemel Hempstead. This is an excellent opportunity for someone looking to join an established property developer that offers many years of continues work. The scheme will consist of 10 Traditional build units from demo to completion, with another project to follow up after in the area. The ideal candidate should have experience running traditional build projects from groundworks to completion. Role Overview Title: Senior Site Manager Project: 10 Traditional Build Houses Location: Hemel Hempstead Salary: £65,(Apply online only) - £70,(Apply online only) Start: April 2026 Type: Permanent Responsibilities Day to day managing of all site works Managing all sub-contractors Managing health and safety Quality Assurance Requirements Must have current CSCS, SMSTS, First aid Confident communicator with a proactive approach Timber Frame / Traditional build experience If you're a Site Manager, Senior Site Manager, Project Manager looking for a genuine opportunity to develop your career and take on new challenges, please contact Damian Kostromski All applications are treated in the strictest confidence. O'Neill and Brennan values diversity and promotes equality, All individuals will be treated in a fair and equal manner and in accordance with the law regardless of gender, marital status, race, religion, colour, age, disability or sexual orientation

O'Neill & Brennan are currently partnering with a leading Tier 1 M&E Contractor who specialise in delivering complex, high-value commercial and data centre and mission-critical projects across the UK and Europe. Due to continued growth and a strong project pipeline, our client is seeking a Junior Health and Safety Advisor to join their team in London. This is an excellent opportunity for a developing Health & Safety professional to gain hands-on experience within a high-performance environment, working alongside industry experts on one of the UK's most technically advanced M&E installations. Role Overview: The successful candidate will support the Health & Safety team in promoting and maintaining the highest standards of health, safety, and environmental compliance on-site. This role is ideal for someone with a strong interest in M&E and data centre construction who wants to progress within a Tier 1 contractor setting. Key Responsibilities: Assist in implementing and enforcing company Health & Safety policies and procedures across the project. Conduct regular site inspections and audits to ensure compliance with legislation, client requirements, and internal standards. Support the preparation and review of Risk Assessments and Method Statements (RAMS) for M&E activities including HV/LV systems, containment, and commissioning works. Assist in the reporting and investigation of incidents and near-misses, contributing to root cause analysis and corrective actions. Maintain accurate and up-to-date Health & Safety documentation and contribute to site safety reports for project leadership and the client. Participate in delivering site inductions, toolbox talks, and safety briefings. Engage with site management teams, subcontractors, and client representatives to foster a proactive, safety-first culture. Monitor workforce compliance, including permits-to-work, PPE, and training records. Requirements: NEBOSH General Certificate or Construction Certificate (or equivalent). Previous experience working in Construction (Preferred) Genuine interest in developing a career within Health & Safety in Construction industry. Excellent communication and interpersonal skills with the ability to engage teams on-site. Proactive and adaptable, with strong attention to detail and organisational skills. Competent in Microsoft Office and comfortable maintaining digital H&S records. What's on Offer? Competitive salary and comprehensive benefits package. Structured development and training opportunities (with support toward further H&S qualifications such as NEBOSH Diploma or NVQ). Opportunity to gain experience on one of the UK's leading mission-critical data centre projects. Supportive Tier 1 contractor environment with clear career progression pathways. O Neill and Brennan values diversity and promotes equality, All individuals will be treated in a fair and equal manner and in accordance with the law regardless of gender, marital status, race, religion, colour, age, disability or sexual orientation

Are you a Senior Party Wall Surveyor an Associate Party Wall Surveyor or even a Director in Party Wall then this may be the perfect opportunity. Let's be honest if you are experienced in Party Wall matters you are already in demand So why should this role catch your eye, well how about stepping into a consultancy where your expertise actually matters your progression is not we will review it next click apply for full job details

A leading contractor in Skipton is looking for a freelance Site Manager for a minimum of 5 months with potential for ongoing work. The ideal candidate will have experience in overseeing refurbishment projects and must hold current SMSTS, CSCS, and First Aid certifications. This client-facing role demands high professionalism and adherence to Health & Safety standards. Interested applicants should send their CVs or contact Sean directly.

O'Neill & Brennan are working with a leading contractor who are delivering a major project in Skipton, Yorkshire. They are looking to bring in a freelance Site Manager on a freelance basis but a minimum duration of 5 months, with potential of ongoing work for the right candidate. Applicants will need to have experience overseeing refurbishment projects and must hold current SMSTS, CSCS & 1ST AID. This is a client facing role so our client are looking for a Site Manager with high professionalism and H&S standards. If you would like to arrange a confidential discussion regarding this or any other opportunities in the Midlands region, please send a copy of your CV to OR call Sean on O'Neill and Brennan values diversity and promotes equality. All individuals will be treated in a fair and equal manner and in accordance with the law regardless of gender, marital status, race, religion, colour, age, disability, or sexual orientation.

We have a month-long requirement for a temporary site manager to assist the Senior Site Manager on a residential development on the outskirts of Swindon commencing mid-October. The company is a prominent UK social enterprise that oversees a quarter of a million residences across the UK, creating significant positive community impact click apply for full job details

Job title: Senior Quantity Surveyor Salary: £80,000 - £100,000 DOE Location: High Wycombe O'Neill and Brennan are currently representing a reputable main contractor who are looking to hire a Senior Quantity Surveyor on a permanent basis, initially to work on one of their schemes based in click apply for full job details