Haverhill Roofers serves businesses near Wickhambrook with commercial roof repairs, replacements and planned maintenance, covering flat roofs, profiled metal sheeting, box gutters and roof lights.
Call any time. Calls are answered day and night and passed straight to our roofers.
Haverhill Roofers covers commercial roofing work in and around Wickhambrook and the surrounding villages. The buildings we work on include light industrial units, farm buildings, village shops, small offices and storage facilities. The roofing systems on these buildings vary considerably, and the right approach depends on the type of roof, its age and its current condition.
The question we are most often asked by business owners and property managers in this area is a straightforward one: should I repair the roof or replace it? The honest answer is that it depends on specific factors that can only be assessed by someone who has actually looked at the roof properly. This page sets out how to think through that decision.
Commercial roofs take several forms. Flat roofs on office blocks and workshops are typically finished with a built-up felt system or an EPDM rubber membrane. Profiled metal sheet roofing covers many agricultural buildings and industrial units. Box gutters are common on older commercial and agricultural structures. Roof lights, whether on flat or pitched roofs, are a recurring source of leaks as the seals and frames age.
Each of these systems behaves differently as it ages, and each has different repair and replacement economics. Understanding those differences is the starting point for making a sensible decision about your building.
There is no universal threshold, but the following factors consistently point towards one answer or the other on commercial roofing jobs.
Repair is usually the right choice when the failure is localised. A single lap joint on a metal sheet roof, a split in a felt membrane around a penetration, a roof light seal that has shrunk away from the frame - these are discrete problems that do not indicate the roof as a whole has reached the end of its life. A targeted repair, done properly, will restore weathertightness without the cost or disruption of a full replacement.
Repair also makes sense when the underlying deck is sound. On a flat roof, the deck is the structural board or concrete that the membrane sits on. If the deck is dry and solid, a new membrane can be applied over a clean, prepared surface and will perform well. If the deck is soft, wet or breaking up, no membrane will last on top of it regardless of how well it is applied.
A well-executed targeted repair to a commercial flat roof in good underlying condition can extend the roof's life by a number of years. The key word is well-executed: a repair that does not address the root cause of the failure will not hold.
Replacement becomes the better option when problems are widespread rather than localised. On a felt flat roof, this typically shows up as multiple split seams, widespread blistering, ponding water that does not drain, and the felt surface becoming brittle and fragile. At that stage, patching one area simply moves the failure to the next weakest point.
Profiled metal roofs tell a similar story. Isolated rust patches and loose fixings can be addressed by repair. But when surface rust is general across many sheets, laps have lifted in multiple bays and fixings are corroding at scale, the repair cost quickly approaches the replacement cost without delivering anything like the same lifespan benefit.
Replacement is also the clear choice when the deck beneath the membrane has absorbed moisture and become structurally compromised. Applying a new membrane to a wet, soft deck is money wasted. The deck must be dried out or replaced, at which point you are effectively doing a full strip-back and re-roof anyway.
Many commercial roofs sit in an uncertain middle ground. The membrane has patches of failure but is not wholly gone. The deck has some soft areas but not across the whole roof. In these situations, a proper condition survey is the only way to reach a defensible decision. A roofer who inspects the roof thoroughly can map the areas of failure, assess deck condition bay by bay, and give you a realistic picture of what repair versus replacement would involve in terms of cost and expected outcome.
A rough rule of thumb used in the industry: if the cost of repair exceeds 50 to 60 per cent of the cost of replacement, and the roof is already more than two thirds of the way through its expected lifespan, replacement usually delivers better value over time. This is a guide only, not a hard formula.
Overlaying - laying a new membrane directly on top of the existing one without stripping back - is sometimes presented as a cost-saving middle option. It can work, but only if the existing membrane is dry, firmly bonded and in reasonable condition. Overlaying onto a wet or delaminating existing system traps moisture, which then works against the new membrane from below. Ask any contractor proposing an overlay to explain specifically why overlay is appropriate for your roof's current condition.
For commercial flat roof replacement using an EPDM rubber system, typical costs run from around £80 to £120 per square metre, depending on deck condition, access and the complexity of detailing around outlets, upstands and penetrations. Repairs to isolated sections are priced by the area and the nature of the failure. These are indicative figures; the condition survey will determine the actual scope and cost for your building.
We work across the area around Wickhambrook and through the surrounding villages. Farm buildings, industrial units, shops and offices - if it has a commercial roof, we can assess and work on it.
To get a clear picture of whether your roof needs repair or replacement, call us to arrange a proper survey. We will inspect the roof, assess the deck condition, map any areas of failure and give you a straight answer with the reasoning behind it.
No obligation · We'll call you to arrange a free visit
Call any time. Calls are answered day and night and passed straight to our roofers.
