Services
From the first survey to the final commissioning sheet, COYFIELD keeps design, fabrication, installation and maintenance under one accountable roof.
01 / 06
We start on site. Detailed measured surveys, plant-space appraisals and coordination checks give your team a dependable baseline — so design decisions are grounded in the real building, not the drawing.
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02 / 06
Our engineers audit the ventilation design against Part F, Part L and SAP intent — identifying undersized runs, pressure-drop hotspots and noise risks while there is still time to fix them on paper.
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03 / 06
Galvanised, stainless and powder-coated ductwork fabricated to DW/144 with full traceability. Pre-fabricated modules and pre-insulated runs arrive labelled and ready, compressing programme on site.
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04 / 06
Accredited installation crews fit, support and balance systems to specification — with photographic QA, leakage testing and a tidy, sequenced approach that keeps other trades moving.
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05 / 06
Once handed over, we keep systems performing. Planned maintenance, TR/19 cleaning regimes and rapid reactive cover protect indoor air quality, energy performance and your warranty position.
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06 / 06
Our flagship offer: high-efficiency MVHR designed, supplied and installed as one accountable package. Quiet, low-energy, beautifully detailed — engineered for comfort and long-term running cost.
What's included
Our method
Survey, design audit and value-engineering. We understand the building and the budget before committing a line.
Coordinated, compliant ductwork and MVHR design — sized, modelled and ready for fabrication.
DW/144 fabrication with traceability. Pre-insulated, pre-labelled modules to suit your install sequence.
Accredited installation, leakage testing, commissioning support and a planned maintenance handover.
Not sure where to start?
Answer two quick questions and we'll suggest the right ventilation strategy for your building.
Step 1
Share your drawings for a value-engineered proposal.