25+ years of fenestration industry experience. Available to manufacturers and suppliers who need a reliable, expert pair of hands — without the cost of a permanent hire.
About Aperture Precision
My name is Darryl Haggan. I've spent over 25 years working in the uPVC fenestration industry — starting on the factory floor and progressing into specialist order processing and quoting roles across retail and new build commercial projects.
I launched Aperture Precision to offer that depth of experience directly to manufacturers and suppliers who need flexible, knowledgeable processing support — without the cost and commitment of a permanent hire.
Whether you need help with everyday quoting, overflow cover during busy periods, or someone to step in for a colleague on holiday, I can integrate quickly and get to work with minimal disruption.
"Every opening, exactly right."
Aperture Precision — Darryl Haggan
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What I offer
End-to-end processing of uPVC window and door orders, handled accurately and efficiently from initial enquiry through to confirmed order.
Precise, professional quotations for retail customers and new build commercial clients. Experienced across both sectors.
When your order book grows faster than your team, I provide reliable additional capacity to keep things moving without missed deadlines.
Simple, no-fuss cover when your processing team is on leave — so your customers never notice the gap.
Accuracy review of specifications and orders before they go to production — catching errors before they become costly problems.
No long-term contracts required. Work with me on a project, retainer, or ad-hoc basis — whatever suits your business.
Why work with me
Deep industry knowledge
25+ years in fenestration — from manufacturing to processing — means I understand the product, the process, and the pressure your team is under.
Ready to hit the ground running
Extensive Window Designer experience and Business Micros exposure means minimal onboarding time and no hand-holding required.
Precision as standard
Order errors are expensive. Over 15 years of processing experience means accuracy isn't an aspiration — it's the baseline.
Flexible, no-commitment support
No long contracts, no recruitment fees, no employment obligations. Experienced support exactly when you need it, and nothing more.
An experienced processor prevents errors before they reach production.
One prevented remake typically covers several days of support fees.
The case for Aperture Precision
Get in touch
If you're a manufacturer or supplier looking for experienced, flexible processing support, I'd love to hear from you. Drop me an email or give me a call — no obligation, just a conversation.
Available for remote and flexible engagements across the UK.
Typical response within a few hours during working hours. Happy to arrange a call to discuss your requirements.