Commercial Flat Roofing Contractors - London & South East
High-Performance Flat Roofing for Commercial & Public Sector Projects
DL Jones Roofing Services has been delivering commercial flat roofing installations and refurbishments across London and the South East since 1987.
Based in South Croydon, our teams work daily across London, Surrey, Kent, Sussex, and Essex – installing and maintaining flat roofing systems for local authorities, housing associations, schools, hospitals, property management companies, commercial landlords, and homeowners.
As approved installers of Bauder and Polyroof roofing systems, every flat roof we install carries a full manufacturer-backed warranty of up to 25 years – not just a contractor’s guarantee.
Our directly employed workforce means consistent quality and clear accountability on every project, from a single flat roof repair to a multi-building replacement programme.
Our Flat Roofing Systems
Bitumen Membrane Roofing (Bauder Approved)
Torch-applied and cold-applied bitumen membrane systems are one of the most proven and widely specified flat roofing solutions for commercial, public sector, and residential buildings in the UK. As approved Bauder installers, we deliver full Bauder system integration – including vapour control layers, insulation, waterproofing membrane, and green roof compatibility where required.
Bauder bitumen systems are particularly well-suited to schools, housing blocks, local authority buildings, and any project where long-term performance and warranty protection are priorities.
Best for: Industrial roofs, offices, cost-sensitive projects.
Single Ply Systems (Including EPDM & PVC)
Single-ply membrane roofing systems – including EPDM (rubber) and PVC – are lightweight, fast to install, and highly resistant to UV radiation and chemical exposure. They are an excellent choice for commercial units, industrial roofs, and new-build developments where installation speed and cost-efficiency are important factors. Single-ply systems can be mechanically fixed, fully adhered, or ballasted depending on the roof structure and specification.
They offer excellent long-term performance with minimal maintenance requirements. Best for: Industrial roofs, offices, new-build commercial developments, cost-sensitive projects.
Best for: Industrial roofs, offices, cost-sensitive projects.
Cold Applied Systems (Polyroof Approved)
Best for: Live sites, schools, hospitals, complex roof layouts.
Green Roofs
Green roofs – incorporating living vegetation into the roof build-up – are increasingly required by London planning authorities as a condition of development consent and form a key part of biodiversity net gain (BNG) compliance under the Environment Act 2021. We install extensive and biodiverse green roof systems in conjunction with Bauder waterproofing membranes, creating a fully integrated, warranted solution. Green roofs reduce stormwater run-off, improve thermal performance, extend the life of the waterproofing membrane beneath, and support urban biodiversity. Best for: Schools, housing developments, planning-driven projects, BREEAM assessments, biodiversity net gain compliance.
Best for: Eco-conscious developments, schools, civic buildings.
Warm Roof Build-Ups
Ideal for: Refurbishments, sustainability-focused projects, BREEAM targets.
Our Flat Roofing Process
Every flat roofing project at DL Jones follows the same structured process - from initial survey through to handover and warranty documentation. Here is what to expect.
Why Choose DL Jones Roofing for Flat Roofing?
Approved by Industry Leaders
We are certified installers of Bauder and Polyroof systems.
30+ Years of Experience
Established in 1986, with a strong portfolio of commercial and public sector work.
Specialist Teams
Dedicated flat roofing teams with system-specific expertise.
Fully Accredited
CHAS, SafeContractor, Constructionline Gold, Bauder, Polyroof and more.
Health & Safety Focused
Fully compliant with CDM, RAMS, and on-site safety protocols.
Project Versatility
From schools and hospitals to commercial units, we’re equipped for flat roofing projects of all scales and specifications.
Sectors We Work With
Let’s Talk About Your Roofing Needs
Whether you’re managing a housing portfolio, overseeing public buildings, or need urgent repairs to your property, we’re ready to help. Get in touch with our expert team today.
Flat Roofing Services Across London & the South East
Our flat roofing teams operate daily from our South Croydon base, covering the full London and South East region. We regularly deliver flat roofing projects across all London boroughs – including Croydon, Bromley, Sutton, Lewisham, Greenwich, Wandsworth, Lambeth, Southwark, and Kingston upon Thames – as well as throughout Surrey, Kent, Sussex, and Essex. Whether you are a facilities manager, housing officer, property manager, or homeowner, if you need a flat roofing contractor in London or the South East, call us on 020 8657 0734 or request a free survey using the form below.
What Our Clients Say
We’re proud of our reputation and the trust we’ve earned from local authorities, commercial clients, and homeowners alike. Our customers consistently recommend us for our high standards, clear communication, and hassle-free service.
Frequently Asked Questions
What types of flat roof systems do you install?
How long do flat roof installations last?
Are your flat roofing systems compliant with warranties?
Can you overlay an existing flat roof?
Do you install green roofs?
Do you offer flat roof maintenance contracts?
Yes. We offer maintenance contracts for commercial and public sector clients – typically including inspections, gutter and drainage clearance, minor defect repairs, photographic condition reports, and priority emergency call-out terms.
Associations & Accreditations
The accreditations and approved installer statuses required by councils, NHS Trusts, housing associations, and public sector procurement frameworks across London and the South East.
CHAS Accredited Contractor – independently verified compliance with health, safety, and environmental standards.
Constructionline Gold Member – the procurement gateway accepted by councils, NHS Trusts, and housing associations.
SafeContractor Approved – independently assessed health and safety management across all our sites, teams, and working practices.
NFRC Roofing Competent Person Scheme – demonstrating that our operatives meet the defined competency standards for roofing work, supporting compliance with Building Regulations.
Bauder Approved Contractor -certified to install the full range of Bauder flat roofing systems. Every Bauder installation we complete qualifies for the full
manufacturer’s system warranty of up to 25 years, backed by Bauder directly.
Polyroof Approved Installer -certified to install Polyroof cold applied liquid roofing systems to manufacturer’s specification. Full Polyroof system warranty of up to 25 years on every qualifying installation.
National Framework Partnership (NFP) – registered supplier on the NFP roofing framework, giving housing associations and public sector clients a compliant, pre-tendered route to appoint DL Jones without a full tender process.
Safe2Torch Registered – demonstrating that our operatives are trained and competent in the safe use of hot works equipment. Required for all torch-applied roofing membrane installations and a key health and safety standard on any live site.
NFRC Member – National Federation of Roofing Contractors. Membership signals our commitment to industry best practice, professional standards, and ongoing technical development across our roofing teams.
Looking for Expert Flat Roofing Contractors?
Whether you need a flat roof replaced, repaired, or surveyed, the first step is always a thorough inspection of the existing roof. DL Jones offers free flat roofing surveys across London and the South East.