About
Commercial Ductwork Specialists
DLP delivers ductwork and ventilation packages for commercial and industrial projects across London.
We are a commercial ductwork contractor working for main contractors, M&E contractors, consultants, landlords and end clients across London. Our scope covers supply, fabrication and installation of ductwork and ventilation systems on new-build, refurbishment and fit-out projects.
The work ranges from single plant room connections and tenant fit-outs through to full-building distribution, kitchen extract systems and fire-rated ductwork installed to the project fire strategy. Whatever the scale, the requirements are the same: accurate pricing, coordinated installation, safe working and completion information that stands up at handover.
We hold the health and safety accreditations that commercial procurement teams expect, and our operatives carry the cards and training appropriate to their roles and site activities.
Capability
What We Bring to a Project
Technical expertise
Ductwork and ventilation is our specialism, not a sideline to a general building services offer. Work is priced and installed by people who understand duct construction, leakage classification and the practical realities of getting sections into a building.
Experienced installation teams
Our operatives work in active construction environments and occupied commercial buildings: inducted, carded, working to project RAMS and used to the discipline that a principal contractor expects.
Coordination and communication
Duct routes, dimensions and interfaces are agreed before fabrication is released. Queries and clashes are raised in writing at the point they arise rather than at the point they become a delay.
Programme delivery
Fabrication and labour are planned against the construction programme, with deliveries sequenced to suit site access and storage — which on most London projects is the constraint that matters.
Professional estimating
Quotations are prepared from the issued drawings, specification and bill of quantities with the inclusions and exclusions set out clearly, so packages can be compared properly at tender stage.
Long-term contractor relationships
Most of our work comes from repeat appointments by main contractors and M&E contractors. That standard governs how we behave on site.
Project Process
From Enquiry to Handover
A consistent sequence from receipt of drawings through to completion information — so main contractors know what happens, and when.
- 01
Enquiry & Drawings
Drawings, specification, bill of quantities or scope of works received and logged with the estimating team.
- 02
Review & Estimate
Scope reviewed, queries raised in writing and a commercial quotation prepared against the issued information.
- 03
Technical Coordination
Duct routes, dimensions, interfaces, access and programme requirements coordinated with the design team and other trades.
- 04
Fabrication & Procurement
Ductwork, fittings and components fabricated and procured in the sequence required for installation.
- 05
Site Installation
Experienced site teams install to the agreed setting-out, under project RAMS and the principal contractor's site rules.
- 06
Inspection & Handover
Installation inspected, defects closed out and completion information issued for the O&M documentation.
Why DLP
Why Choose Us
Commercial Specialists
Focused on commercial and construction-sector ductwork and ventilation, not domestic installation.
Accredited & Site Ready
Health and safety accreditations, RAMS and operative certification appropriate to commercial construction sites.
Experienced Installation Teams
Operatives accustomed to working within active construction environments and occupied buildings.
Technical Coordination
Able to work from drawings and specifications and coordinate with mechanical, electrical and building services packages.
London Coverage
Supporting commercial projects throughout West London, South West London and Greater London.
Responsive Estimating
Quotation support for live projects, tender submissions and planned works.
Send us your drawings
Issue your drawings, specification or scope of works and our commercial team will review the requirements and return a quotation.