29th September, 2026
Assistant Quantity Surveyor
Location: Bagshot, Surrey
Salary: £40,000 – £55,000 + Package
Job Type: Full-time
Sector: Design & Build Residential Housing
Reporting to: Commercial Director
The Opportunity
We are looking for an Assistant Quantity Surveyor to join our client's commercial team, based in Bagshot, Surrey.
This is an excellent opportunity for a commercially minded individual looking to develop their career within the Design & Build Residential Housing sector, working on high-quality residential developments from pre-construction through to completion.
We are particularly interested in candidates who have gained experience within design & build residential housing, either with a main contractor/housebuilder or a specialist interiors subcontractor, ideally covering areas such as carpentry & joinery, drywall/drylining or decoration.
Reporting directly to the Commercial Director, you will work closely with the wider commercial and project teams, supporting the financial and contractual management of projects.
Key Responsibilities
- Assist with the commercial management of residential construction projects from procurement through to final account.
- Support the preparation and management of project budgets, forecasts and cost reports.
- Assist with the preparation, review and agreement of subcontractor packages and orders.
- Obtain and analyse subcontractor and supplier quotations.
- Assist with procurement and subcontractor negotiations.
- Measure and value works completed on site.
- Prepare and assess interim valuations and payment applications.
- Assist with the management and valuation of variations and change.
- Monitor project costs, commitments and expenditure.
- Support the preparation of monthly commercial reports.
- Assist with the preparation and agreement of final accounts.
- Maintain accurate commercial records and project documentation.
- Work closely with site managers, project managers, designers, subcontractors and clients.
- Identify potential commercial risks and opportunities and escalate them appropriately to the Commercial Director.
- Assist with contractual correspondence and general commercial administration.
About You
We are looking for someone who is commercially aware, organised and ambitious, with a genuine interest in developing their career within residential construction.
Ideally, you will have:
- Previous experience in an Assistant Quantity Surveyor, Trainee Quantity Surveyor or similar commercial role.
- Experience within Design & Build Residential Housing, preferably with a main contractor or housebuilder; or
Experience working for a specialist interiors subcontractor, particularly within:
- Carpentry & joinery
- Drywall / drylining
- Plasterboard / partitions
- Decoration / finishing
- Other specialist internal packages
- A good understanding of construction processes and commercial principles.
- Experience with subcontractor procurement, valuations and variations would be advantageous.
- Strong numerical and analytical skills.
- Excellent attention to detail and organisational skills.
- Confident communication skills, with the ability to build effective relationships with colleagues and supply chain partners.
- A proactive approach with the ability to work independently and take responsibility.
- A relevant degree, HNC/HND or equivalent construction/commercial qualification would be advantageous, although relevant industry experience will also be considered.
What's on offer:
- £40,000 – £55,000 salary, depending on experience.
- Competitive benefits package.
- Opportunity to work within a growing Design & Build Residential Housing business.
- Direct exposure to senior commercial leadership.
- Opportunity to work across the full project lifecycle.
- Strong opportunity for professional and career development.
- Support and mentoring from the Commercial Director and wider commercial team.
- Clear progression towards a Quantity Surveyor position.
Location
The role is based in Farnborough, Surrey, with travel to project sites as required.
Apply
If you are an Assistant Quantity Surveyor with experience in Design & Build Residential Housing or specialist internal packages and are looking for the next step in your commercial career, we would like to hear from you.
Assistant Quantity Surveyor in Surrey employer: Outsource Construction
Outsource Construction is an exceptional employer, offering a dynamic work environment in the heart of London where innovation meets opportunity. With a strong focus on employee development, we provide comprehensive training and growth pathways, ensuring our team members thrive in their careers while working on prestigious projects that make a real impact. Our collaborative culture prioritises safety and quality, making it a rewarding place for professionals to excel in the construction industry.
