Window Fitters Ltd provides specialist labour-only glazier teams and subcontract glazier services for main contractors, housebuilders, and property developers across London and Surrey. Our directly employed, CSCS-carded glazier gangs install client-supplied windows, doors, curtain walling, and facade panels on day-rate or fixed-price subcontracts, backed by £5,000,000 Commercial Public Liability Insurance and £10,000,000 Employers' Liability Insurance.

What Is Labour-Only Glazier Subcontracting?

A labour-only glazier service means you supply the materials and we supply the skilled fitting labour. You procure your window frames, doorsets, curtain wall profiles, or facade panels directly from your chosen manufacturer. Our subcontract glazier teams arrive on site with the tools, lifting equipment, safety documentation, and trade expertise to install them.

This model gives main contractors and developers full control over material specifications, procurement timelines, and supply chain costs. You manage the materials. We deliver the installation manpower.

Transparent Glazier Day-Rate Pricing

We offer clear, competitive day-rate pricing for dedicated glazier gangs deployed to your site:

Team Sise Typical Daily Deployment Included Equipment
2-Man Glazier Team Residential window and door replacements, fire door installations, small shopfront works Hand tools, battery drills, silicone guns, spirit levels, expanding foam applicators
4-Man Glazier Gang Multi-unit housing developments, commercial curtain wall fitting, large-format facade panels All hand tools plus vacuum suction glass lifters, mechanical positioning equipment, laser levels
Custom Team (6+) Major commercial developments requiring parallel floor-by-floor fitting Full equipment suite including crane-assist vacuum lifters for panels exceeding 250kg

Day-rate pricing suits projects with variable scope, phased material deliveries, or evolving site programmes. You pay for the labour time used. There are no minimum contract lengths.

Fixed-Price Per-Unit & Square-Meterage Subcontracts

For projects with confirmed window schedules and final quantities, we offer fixed-price subcontract glazier rates:

  • Per-unit pricing: A fixed price per window or door installed. This includes removal of protective packaging, positioning, mechanical fixing, foam insulation, and perimeter sealing.
  • Square-meterage pricing: A fixed price per m² of fitted glazing for curtain walling and facade installation projects. This includes bracket anchoring, panel glazing, gasket fitting, and silicone sealing.

Both pricing models include CSCS labour, specialist lifting equipment, structural sealants, EPDM gaskets, and full CDM 2015 RAMS documentation. Material supply remains the responsibility of the main contractor or client.

Site Mobilisation Process

When you engage our labour-only glazier teams for a commercial project, we follow a structured mobilisation process:

  1. Pre-Start Meeting: Our site supervisor meets with your principal contractor to review the construction programme, access routes, material storage locations, and delivery schedules.
  2. RAMS Submission: We prepare and submit site-specific Risk Assessments and Method Statements covering all glazing installation activities, including working at height, manual handling, glass lifting, and power tool use.
  3. Site Induction: All glazier operatives complete the principal contractor’s site-specific safety induction before starting work. PPE requirements are confirmed (hard hats, safety boots, hi-vis vests, gloves, safety glasses).
  4. Material Verification: Our lead fitter checks delivered materials against the window schedule or facade drawing. Any discrepancies in sises, quantities, or specifications are reported immediately.
  5. Installation Commencement: Fitting begins in the agreed sequence (typically bottom-up for facades, plot-by-plot for housing sites).
  6. Daily Progress Reports: Our site supervisor provides daily written updates on units installed, any issues encountered, and the next day’s programme.

Contractor Tooling & On-Site Lifting Equipment Included

Unlike agency workers who arrive on site with minimal hand tools, our labour-only glazier gangs are fully equipped with commercial-grade fitting and lifting tools:

  • Dual-circuit vacuum suction glass lifting equipment (250kg to 500kg lifting capacities)
  • Laser-guided rotating spirit levels and digital angle locators
  • Heavy-duty Hilti and DeWalt cordless rotary hammer drills and impact drivers
  • Pneumatic sealant applicators and EPDM rubber roller tools
  • Mobile scaffolding towers (PASMA trained operatives) and safety harness arrest systems

Site Productivity & Output Expectations

Main contractors choose our labour-only glazier teams because of our predictable daily installation outputs. On standard residential development sites, a 2-man glazier team typically fits and seals 6 to 10 standard uPVC or aluminium window frames per day, including expanding foam insulation and perimeter mastic. On commercial facade projects, a 4-man glazier gang with vacuum lifting equipment typically installs 15 to 25 unitised curtain wall panels or stick facade units per day, subject to crane access and weather conditions.

Subcontract Risk Allocation & Material Protection

Under our labour-only subcontract agreements, material protection protocols are established before site work begins. Our site supervisors inspect all delivered window frames, glass units, and curtain walling modules upon arrival, logging any manufacturing defects or transit damage before offloading. Once verified, our CSCS glaziers assume responsibility for safe handling, positioning, and fixing, ensuring zero breakage or frame scratching during the fitting phase.

Contractor Communication & Progress Auditing

Smooth site operations require continuous communication between glazier gangs and main contractor site managers. Our lead fitters attend morning site coordination meetings, reporting daily unit installation figures and confirming access availability for upcoming floors or plots. If site delays occur due to delayed material deliveries or scaffolding modifications by other trades, our site supervisors reallocate fitting crews efficiently to prevent wasted downtime.

Every completed phase undergoes joint inspection between our lead glazier and the main contractor’s site agent. Any minor snagging items, such as mastic touch-ups or handle adjustments, are resolved immediately on site before formal sign-off sheets are signed.

Materials We Handle

Our subcontract glazier teams are experienced in installing client-supplied materials from all major UK and European manufacturers:

  • uPVC profile systems: Deceuninck, Liniar, Rehau, Profile 22, Spectus, VEKA, Eurocell
  • Aluminium window and door systems: AluK, Reynaers, Schueco, Smart Systems, Origin, Cortizo
  • Curtain wall and facade systems: Reynaers CW 50, Schueco FW 50+, Kawneer AA 100, Technal MX
  • Timber and alu-clad systems: Norrsken, Rationel, Internorm, Velfac
  • Composite door manufacturers: Solidor, Endurance, Palladio, Rockdoor
  • Fire doorsets: Premdor, Jeld-Wen, Howdens, Vicaima

London & Surrey Coverage

Our labour-only glazier teams deploy daily from our Croydon base across Greater London, Surrey, and surrounding areas within a 40-mile radius. We regularly mobilise to sites in:

  • Central London (City of London, Westminster, Southwark, Lambeth)
  • South London (Croydon, Bromley, Sutton, Lewisham, Greenwich)
  • West London (Richmond, Kingston, Hounslow, Ealing)
  • North London (Barnet, Enfield, Haringey, Camden)
  • East London (Newham, Tower Hamlets, Barking, Redbridge)
  • Surrey (Guildford, Woking, Epsom, Reigate, Redhill, Dorking)

JCT Subcontract Governance for Labour-Only Fitting

Our professional labour-only subcontract agreements operate under standard JCT Subcontract terms (Short Form or Design and Build Subcontract). This provides main contractors and developers with clear contractual terms covering payment schedules, retention mechanisms, insurance liabilities, defect remediation, and formal dispute resolution. Marian Gheorghe directly oversees all commercial subcontract agreements, ensuring seamless site integration, full CDM 2015 RAMS compliance, and single-point technical accountability on every project site across London and Surrey.

Health & Safety, RAMS & Commercial Insurance Protection (£5M Public & £10M Employers' Liability)

Safety compliance is fundamental to our commercial subcontracting operations. Every labour-only subcontract is supported by comprehensive CDM 2015 RAMS prepared specifically for your job site.

Our directly employed subcontract glazier operatives:

  • Hold valid CSCS cards (Blue, Gold, or Black level)
  • Are trained in manual handling, working at height, and scaffold access
  • Carry full £5,000,000 Commercial Public Liability Insurance and £10,000,000 Employers' Liability Insurance
  • Complete site-specific safety inductions before starting work
  • Use correct PPE at all times (hard hats, safety boots, hi-vis, gloves, safety glasses)

Frequently Asked Questions: Labour-Only Glazier Contracting

What is included in your labour-only glazier service?

Our labour-only glazier service includes directly employed CSCS operatives, specialist glass lifting equipment, mechanical fixing, expanding foam thermal insulation, EPDM weather-sealing, structural sealants, and CDM 2015 RAMS management. The client supplies the window/door frames and glass units.

How are your subcontract glazier rates structured?

We offer day-rate pricing for 2-man, 4-man, or custom-sise glazier gangs. We also offer fixed-price per-unit or per-square-metre subcontracts for projects with confirmed window schedules. Contact our commercial team for a quotation based on your project scope.

How quickly can you mobilise a glazier team to our site?

Typical mobilisation time is 3 to 5 working days from confirmed order. This allows for RAMS preparation, site induction scheduling, and equipment allocation. For urgent requirements, we can often mobilise within 48 hours subject to team availability.

Are your labour-only glaziers directly employed?

Yes. 100% of our subcontract glazier operatives are directly employed by Window Fitters Ltd. We do not use agency workers or unvetted sub-contractors. This guarantees consistent quality, full accountability, and the same team returning for any snagging work.


Marian Gheorghe

Author & Technical Reviewer: Marian Gheorghe

Head Installer & CEO, Window Fitters Ltd

Marian Gheorghe is the Active Director and Team Leader Installer at Window Fitters Ltd. With over 15 years of hands-on experience, he oversees technical safety and UK Building Regulations compliance for all residential and commercial glazing contracts.

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Window Fitters Ltd installs windows, doors, fire doors, and commercial glass facades across London and Surrey. Croydon head office, 40-mile service radius, 100% directly employed CSCS-carded fitters.

Our estimators respond within 24 business hours with a fixed-price quotation.

Verified Google & MyBuilder Reviews

Window Fitters 4.9 / 5.0 Rating ★★★★★ Read Live Google Reviews →
★★★★★

"Stunning Sash Windows in Croydon"

"Marian and his team replaced our old Victorian sash windows. They were clean, fast, and the double glazing has completely blocked out the street noise. Highly recommended!"

- Sarah T., Croydon
★★★★★

"Excellent Bifold Doors in Bromley"

"Installed beautiful grey aluminium bifold doors for our new kitchen extension. Smooth gliding mechanism and great insulation. The best quote we got in Kent."

- David M., Bromley
★★★★★

"Perfect Front Door Upgrade in Sutton"

"Very happy with our new composite door installation. Excellent lock security and high-quality GRP slab finish. Fast half-day fitting and no mess left behind."

- James L., Sutton
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