Window Fabricator
Fabricate uPVC, aluminium, and timber window and door frames in factory settings — a precision manufacturing trade with strong demand across the construction and replacement window industry.
Moderate
Low
1–2 years via employer training with NVQ assessment; some enter directly from school-leaver or manufacturing backgrounds
Level 3 NVQ Diploma in Fenestration Installation and Survey; GGF or BFRC technical qualifications; employer in-house training on specific system profiles is standard
possible
What you do
Window fabricators cut, machine, weld, and assemble window and door frames from uPVC profiles, aluminium sections, or timber. For uPVC work, the fabricator operates computerised cutting saws to cut mitres, welds corners using fusion welding machines, cleans and finishes welds, and fits hardware including locks, hinges, handles, friction stays, and weather seals. Aluminium fabrication involves cold crimping or mechanical jointing of sections, fitting thermal break inserts, and preparing frames for powder coating. Timber window fabrication requires traditional joinery skills — mortice and tenon joints, routing profiles, and finishing. Glazing units — double or triple sealed units — are beaded into the completed frames.
A Level 3 qualification in Fenestration Installation or Window Fabrication is the industry standard. FENSA (Fenestration Self-Assessment Scheme) governs installation compliance; the Glass and Glazing Federation (GGF) and the British Fenestration Rating Council (BFRC) set industry standards. Work is factory-based, with some fabricators moving into site installation as their career develops. The replacement window market is large and consistently active.
Why this career is resilient
Demand for energy-efficient windows — driven by building regulations, planning requirements, and the domestic renovation market — creates consistent work for fabricators supplying the replacement and new-build sectors. While machinery handles repetitive cutting operations, the accurate assembly, hardware fitting, quality checking, and problem-solving required for non-standard sizes and complex frame configurations remain skill-intensive human work. Factory-based fabrication cannot be offshored in any meaningful sense — frames must be manufactured close to the installation sites they serve to manage logistics and delivery costs.
A typical day
Morning: load the day's cutting schedule into the saw — a run of standard casement frames for a housing developer — cut profiles to length, and begin welding corners on the uPVC welder. Afternoon: clean and dress all welded corners, fit hardware packs (hinges, handles, stays) to a batch of tilt-and-turn units, and check against the quality control specification before labelling for dispatch. End of day: assist in resolving a non-standard bay window frame requiring a special mullion assembly not in the standard production run.
Routes in
Apprenticeship
Earn while you learn: work with an employer and study part-time, leading to a nationally recognised qualification. Typically funded by the government and your employer.
Employer-funded training
Some employers — particularly the NHS, emergency services, and larger care providers — run their own funded training programmes. You apply for a job and train as you work.
Pay and costs
Earning potential: Entry-level fabricator: £22,000–£28,000. Experienced fabricator or team leader: £28,000–£36,000. Specialist aluminium or timber fabricators and supervisors can earn above this range. Overtime common in busy production periods.
Training costs: Most training is employer-funded on the job. NVQ assessment costs typically met by employer. No significant personal tool investment — factory machinery provided. Personal PPE (safety footwear, eye protection): £100–£200.