Flat Roof Refurbishment
Commercial & industrial flat roof refurbishment — factories, warehouses, schools & public buildings across East Anglia & nationwide.
Flat Roof Refurbishment Specialists
Looking for flat roof refurbishment services using liquid coatings? Look no further than Storm Coatings.
Flat roofs come in all base materials — felt, single ply, asphalt, concrete and metal — but they share one weakness: all are prone to degradation with age and weathering. Rainwater drains very slowly from a flat roof, so standing water has far more chance to do damage, and deterioration sets in first at the vulnerable junctions: joints, chimney and pipe penetrations, and detailed areas.
Storm Coatings refurbish flat roofs using liquid overlay systems. The liquid is applied straight over the existing surface — no strip-out, so you save on stripping costs, labour and time. The result is a faster, seamless, joint-free finish that lasts longer and adds durability to the existing structure.
Why Choose a Liquid Coating?
Seamless & Joint-Free
A continuous membrane with no joints or laps to fail.
No Strip-Out
Applied over the existing roof — less waste, less cost.
25-Year Guarantee
Long-life systems backed by a written guarantee.
Minimal Disruption
Cold-applied, so you keep operating during works.
Commercial & Industrial Flat Roofs We Refurbish
We specialise in flat roofs for commercial and industrial buildings — not domestic. From single units to large estates, across these sectors:
Flat Roof Refurbishment for Factories
Factory buildings across the UK rely on flat roof structures that take a battering from the elements year after year. Storm Coatings specialise in flat roof refurbishment for factories of all sizes, from small manufacturing units to large-scale production facilities. Our liquid overlay systems can be applied to existing felt, asphalt, concrete, or metal flat roofs without the need for costly strip-and-replace work. This means your factory can continue operating during the refurbishment with minimal disruption to production.
Flat Roof Refurbishment for Warehouses
Warehouses are particularly vulnerable to flat roof failures due to their large roof spans and the critical need to keep stored goods dry. A leaking warehouse roof can lead to stock damage, health and safety risks, and business interruption. Our flat roof refurbishment service for warehouses uses seamless liquid waterproofing that eliminates the joints and laps where most leaks originate. We have refurbished warehouse flat roofs across East Anglia, the Midlands, and nationwide, with systems guaranteed for up to 25 years.
Flat Roof Waterproofing Coating Systems
Our flat roof coating systems are suitable for all common flat roof substrates including felt, single-ply membrane, asphalt, concrete decks, and metal. The liquid waterproofing is applied cold, cures to form a seamless rubber-like membrane, and can accommodate building movement and thermal expansion without cracking. All our flat roof refurbishment work includes a detailed survey, specification, and written guarantee.
Flat Roof Coating and Waterproofing for Commercial Buildings
A flat roof on a commercial building rarely fails all at once. More often it’s a slow deterioration — blistering felt, standing water, failing laps, corroded outlets — until one wet winter makes the problem impossible to ignore. If you’re a facilities manager, building owner or main contractor trying to decide whether to repair, coat or replace, the answer depends on what’s actually happening at substrate level. This page explains how we assess commercial flat roofs, what systems we use, and how we work with clients across sectors where downtime and budget control both matter.
Commercial Flat Roof Challenges and Why They Fail
Most flat roof failures follow familiar patterns. Felt systems degrade at the laps and around upstands. Single-ply membranes develop pinhole splits or lifting at seams. Built-up roofing loses its surface dressing and starts to absorb UV damage. Ponding water — often caused by blocked or undersized outlets — accelerates every one of these problems.
On commercial and industrial buildings, the consequences compound. A leak that would be a nuisance in a small property can shut down a production line, damage stock, or compromise electrical installations. In public buildings like schools or leisure centres, it creates health and safety obligations and can trigger emergency closures.
Early assessment is the key. In many cases where an owner assumes they need a full roof replacement, a properly specified flat roof coating or liquid waterproofing system is the right answer — and a fraction of the cost.
Coating vs Full Replacement
| Liquid Coating Refurbishment | Full Roof Replacement | |
|---|---|---|
| Cost | ✔ Fraction of the cost | ✗ High capital outlay |
| Disruption | ✔ Minimal — stay operational | ✗ Significant downtime |
| Installation | ✔ Fast, cold-applied | ✗ Slow strip-and-replace |
| Waterproofing | ✔ Seamless, joint-free | New membrane with joints & laps |
| Hot works | ✔ None required | ✗ Often torch-on / permits |
| Lifespan | ✔ Up to 25 years | Varies |
Flat Roof Coating vs Membrane Replacement
Replacing a flat roof membrane is disruptive, expensive and often unnecessary. If the existing substrate is structurally sound and the insulation is dry, a liquid-applied waterproofing system applied over the existing surface can extend the roof’s life significantly without the mess and cost of a strip-out.
Commercial flat roof waterproofing in the UK increasingly uses cold-applied liquid systems for refurbishment work precisely because they’re seamless, can detail around complex upstands and penetrations, and don’t require the plant and hot-works permitting that torch-on systems do. For a facilities manager managing a live site, that matters.
Where a substrate is compromised — waterlogged insulation, structural deck damage, or a failed warm roof buildup — a more involved refurbishment or partial replacement may be unavoidable. We’ll tell you that upfront, and we won’t coat over a substrate that’s going to fail behind the system.
Refurbished, Not Replaced
See the scale of the commercial & industrial roofs we coat.
Systems We Use: Liquid Applied, Single-Ply and More
We work with several proven systems depending on the roof type, condition and specification requirements. For liquid-applied waterproofing, we use systems suited to the substrate — whether that’s concrete, timber deck, metal, or an existing membrane. Where a single-ply membrane is in place, coating or refurbishment rather than replacement is often viable, depending on the membrane type and condition.
For flat roof refurbishment on commercial property, we’ve worked with TOR and similar specification-grade systems where architects or surveyors require a named product and associated documentation. If you’re working from a specification written by a consultant, we can confirm compatibility and price accordingly.
Where a warm roof installation is part of the scope — whether as part of a new section or a full-spec refurbishment — we can quote that alongside the waterproofing layer, treating it as a single package rather than splitting the work between trades.
Rooflights, Skylights and Penetrations: How We Handle Them
Rooflights, skylights, soil pipe penetrations and mechanical service upstands are where a significant proportion of flat roof leaks originate. The membrane around them degrades faster, detailing is harder, and bodged repairs tend to fail quickly.
We treat these as part of any flat roof refurbishment scope, not as extras to avoid. Rooflight kerb flashings can be properly detailed into a liquid system. Where a rooflight unit itself is degraded — yellowed, cracked or no longer thermally adequate — we can advise on replacement or surface treatment options depending on the material.
Enquiries we receive sometimes ask specifically about single-ply membrane coating where rooflights are involved. The answer depends on what system is in place and how the existing detailing sits. A site visit is almost always necessary to give a reliable answer — a desktop quote on this kind of work isn’t worth much to either party.
Temporary Fixes vs Permanent Waterproofing Solutions
We occasionally receive enquiries asking whether a temporary fix can be applied, typically to manage an active leak while a longer-term decision is made. The short answer is yes, in some cases — a targeted application of a compatible sealant or patch system can stabilise a specific leak point.
But temporary work has limits. It doesn’t address underlying membrane degradation, it may complicate later permanent work if the wrong materials are used, and it can create a false sense of security that delays proper treatment until the roof is in worse condition.
For a commercial flat roof where the decision on permanent waterproofing hasn’t been made yet, the more useful first step is usually a proper survey rather than an emergency patch. It gives you a clear picture of the actual condition, identifies which areas are critical, and lets you make a budget decision based on real information rather than guesswork. A flat roof refurbishment quote based on a proper survey is a document you can put to a board or a budget committee — a patch job isn’t.
Schools, Leisure Centres and Public Buildings: Our Experience
A meaningful proportion of the flat roof enquiries we receive come from public sector buildings — schools, sports centres, local authority properties and similar. The procurement process is often different: specifications written by architects or surveyors, tender returns required in a particular format, CDM considerations to address, and a strong preference for systems with documented performance histories.
We’re used to working in this environment. If you’re a school business manager or a local authority property team dealing with a leaking flat roof, we can work from an existing specification or survey, or we can carry out our own assessment and produce documentation suitable for your internal approval process.
We can visit schools and similar occupied buildings with appropriate site management, work around term times where scheduling allows, and provide the kind of paper trail that public sector clients typically need. If you’re managing a tender or need to get three quotes, we’re set up for that process.
Our Process
1
Site Survey
We assess substrate, detailing, upstands and penetrations.
2
Specification
A system specified to suit your roof and any consultant spec.
3
Written Quote
A clear, documented quote for board or budget sign-off.
4
Installation
Cold-applied and seamless, around your operation.
5
Guarantee
A written guarantee of up to 25 years on completion.
Get a Flat Roof Assessment
If you’re trying to work out what’s actually wrong with a flat roof, or whether coating it is viable against replacing it, the starting point is a survey. We visit the site, assess the substrate condition, check the detailing around upstands and penetrations, and give you a clear written picture of what’s there.
From that we can produce a specification and quote — whether that’s for a targeted liquid waterproofing repair, a full flat roof refurbishment, or a warm roof installation as part of a broader scope. If you’re working with an architect or surveyor already, we can liaise directly with them.
To arrange a site visit or discuss a specification, contact us through the website or call directly.
Flat Roof Refurbishment FAQs
Yes — liquid waterproofing can be applied directly over the existing flat roof surface, creating a new seamless membrane without the need to strip the old covering. This is faster, cleaner, and significantly cheaper than full replacement.
Common causes include UV degradation of the waterproof membrane, ponding water, thermal movement causing splits at joints, poor original installation, and lack of maintenance. All of these can be addressed through refurbishment.
Our liquid waterproofing systems for flat roofs are guaranteed for up to 25 years. The seamless application eliminates the joints and seams that are the most common failure points on flat roofs.
A properly applied liquid waterproofing refurbishment provides equivalent or better waterproof performance compared to a new built-up or single-ply roof system, at a fraction of the cost.
Yes — we can improve drainage by installing additional outlets, creating falls using tapered insulation or screed, and ensuring all outlets and gutters are clear and functional.
Recent Flat Roof Projects
Get a Free Flat Roof Survey
No-obligation site visit, substrate assessment and written quote.
Specialist commercial & industrial roof coating contractors based in Swaffham, Norfolk.
Services
Flat Roof Refurbishment
Metal Roof Coatings
Cladding Spraying
Cut Edge Corrosion
Gutter Systems
Asbestos Waterproofing
Company
Home
About Us
Case Studies
Areas We Cover
FAQs
Contact
Get in touch
38 Whitsands Road,
Swaffham, Norfolk
PE37 7BY
01760 613186
info@stormcoatings.co.uk
© 2026 Storm Coatings Ltd. All rights reserved. | Site by Anglia Computer Solutions.