Assistant Quantity Surveyor in London, West End

Opportunity for an Assistant Quantity Surveyor to join a well-established, growing office fit-out contractor.

Exposure to high-quality Cat A & B office projects, typically £100k-£5m (c. £1m average).

Broad, hands-on commercial role offering far more responsibility than a typical large corporate setup.

Flat management structure with close collaboration alongside experienced Project Managers.

Ideal role for someone looking to broaden their skill set and accelerate their development.

This established office fit-out contractor, turning over circa £12m and operating primarily across the West End, is looking to appoint an Assistant Quantity Surveyor following the retirement of a long-standing team member. Working closely with Project Managers, you will support the commercial delivery of 2-3 live projects at any one time, gaining end-to-end exposure across both D&B and traditional contracts (circa 65% D&B). The business delivers 95% office fit-out projects for blue-chip clients, with a strong pipeline of secured work.

Key responsibilities include:

• Assisting with (and learning to take ownership of) cost management across multiple projects.
• Pricing works and variations with support from senior commercial staff.
• Subcontractor procurement, package analysis, and negotiation.
• Managing subcontractor accounts, valuations, and payments.
• Assisting with variation assessment and commercial reporting.
• Working closely with Project Managers on delivery and client interaction.
• Supporting commercial close-out and final accounts.

Founded in 2019, this contractor has grown into a respected name within the London office fit-out market, employing a team of circa 3 QSs and 6 PMs. The business operates a flat management structure, encouraging collaboration, accountability, and progression. Clients include Royal London, Bloomberg, AXA, and Aviva, with current live projects such as 10 Chiswell Street, 10 Brook Street (Mayfair), and a range of high-quality commercial fit-outs. The company uses a pre-approved supply chain and predominantly delivers internal packages including drylining, M&E, joinery, and decoration. The role is office-based five days a week, with regular site visits, ensuring strong team integration and learning opportunities.

What We’re Looking For:

• Experience in an Assistant Quantity Surveyor or Graduate QS role within construction or fit-out.
• Ability (or confidence to learn quickly) to price works independently.
• Exposure to subcontractor management, variations, valuations, and procurement.
• Someone looking for broader commercial experience, particularly from a larger business environment.
• Degree in Quantity Surveying or a related discipline preferred, but not essential.
• Stable career history and evidence of commitment and reliability.
• Proactive, inquisitive, and commercially minded attitude.

What’s on Offer:

• Salary circa £40,000, up to £45,000 for the right candidate.
• Excellent hands-on exposure across the full commercial lifecycle.
• Close working relationship with experienced Project Managers.
• Clear development pathway within a growing, stable business.
• Supportive, professional environment with high-quality projects and clients.

To Apply:

• Click "Apply" on the job board.
• Email your CV to Alex @ (url removed) (remove the spaces).
• Call Alex on the number below.
• Connect with Alex Wallace on LinkedIn and send a message.

I'm Alex Wallace, Director at Reinforced Recruitment, specialising in placing construction professionals across commercial, project management, and site-based roles throughout London and the South East. I work closely with both clients and candidates to ensure long-term fit, not just short-term placement. If you want broader exposure, real responsibility, and the chance to accelerate your QS career, this is a role worth discussing.