Mildenhall Roofers carries out commercial roofing work on business premises, agricultural buildings and light industrial units serving Thetford and the wider area, with pricing that depends on the building, the materials and the condition of what is already there.
Call any time. Calls are answered day and night and passed straight to our roofers.
Pricing on commercial roofing varies more than on domestic work, because the range of building types, roof sizes and material specifications is much wider. A small retail unit with a 100 sq metre flat roof is a very different job to a farm building with 800 sq metres of profiled sheet that needs full replacement. The figures below are intended as a realistic guide to what you might expect to pay in Thetford, and what pushes prices up or down from those ranges.
As a broad guide, flat roof replacement on a commercial building in this region typically costs in the range of £50-£120 per square metre, depending on the system chosen, the deck condition and the access required. That range covers felt and single-ply EPDM systems. Pitched roof work on commercial buildings varies more widely still, from £60-£150 per square metre for a re-slate or re-tile, to lower figures for profiled sheet replacement on agricultural structures where labour and material costs are different.
The material specification is usually the biggest single variable in the cost of a flat roof replacement. Built-up felt systems are the lower-cost option at the material stage, which is why they are often quoted for budget-led projects. A standard three-layer torch-on felt system will come in lower per square metre than an EPDM single-ply installation, all else being equal.
EPDM costs more upfront but typically lasts considerably longer than felt - manufacturer data for quality EPDM systems refers to service lives of several decades when properly installed and maintained. Over the lifetime of the building, the higher initial cost of EPDM can represent better value than repeated felt replacements. That calculation depends on how long the building will be in use and what you can spend now.
On pitched roofs, natural slate costs significantly more per square metre to supply and lay than concrete tile or profiled metal sheet. For agricultural and industrial buildings, profiled steel or aluminium sheeting is usually the most cost-effective option where appearance is not a priority.
Larger roofs do not cost the same per square metre as smaller ones. On big, simple flat roofs - think warehouse or agricultural unit - the cost per square metre tends to fall because the labour becomes more efficient. Small, complex roofs with multiple penetrations, changes of level and awkward drainage details cost more per square metre because every penetration and junction has to be individually detailed and sealed.
Pitched roofs with hips, valleys, dormers or multiple abutments are more expensive to reslate or retile than a simple gable-ended roof of the same area. Every hip, valley and abutment requires individual cutting, fitting and flashing, all of which takes time.
On flat roofs especially, the condition of the deck beneath the existing covering has a major effect on cost. If the deck is sound, a new membrane can go straight on after the old covering is stripped. If the deck has absorbed moisture and sections have delaminated, softened or rotted, those areas need to be cut out and replaced before the new membrane is installed. Deck repairs can add significantly to a job - sometimes by 20-40% on a roof where water has been tracking for a long time.
This is one reason why getting someone up on the roof for a proper survey before agreeing a price matters. An experienced roofer walking the roof can identify the spongy or soft areas that indicate a failing deck. A quote given from the ground on a flat roof without an inspection is likely to miss these costs, and they will surface as variations once the covering is stripped.
Access costs money on commercial roofs. Where scaffold is required - on multi-storey buildings or where the roof edge is not safely accessible by mobile platform - scaffold hire adds to the overall price and can be significant on a larger building. Mobile elevated work platforms (MEWPs) are cheaper to hire and faster to position, and are suitable for most single-storey commercial and agricultural work.
Working around a live business adds complexity. If the building needs to remain in use during the work, the job may need to be phased or carried out outside normal hours. Out-of-hours working - evenings and weekends - typically carries a premium. That premium is worth factoring into the initial cost if business continuity is a priority.
The cost of a flat roof replacement should include proper drainage details - outlets cleaned or replaced, falls checked and corrected where possible, and perimeter trims fitted. On older commercial buildings, drainage outlets are often original and have never been replaced. Fitting new outlets into the new membrane adds cost but is far better than connecting a new roof to a corroded or undersized outlet that will block and cause ponding.
Flashings, upstands and perimeter details are not optional extras - they are part of making the roof weathertight. A quote that appears cheaper because it leaves existing flashings in place on a full replacement is likely to produce a roof that leaks at exactly those points within a short time.
A targeted repair on a commercial roof - patching a localised split, re-dressing a failed flashing, replacing a cracked rooflight - can cost from a few hundred pounds upwards depending on access and the extent of the work. Repairs make sound financial sense where the roof is otherwise in reasonable condition and the damage is genuinely isolated.
Where the membrane is ageing and failures are happening at multiple points, the cost of repeated repairs accumulates quickly. At that stage, the cost of a full replacement spread over its service life is usually lower than continued reactive maintenance. A straight comparison of repair cost versus replacement cost per year of expected remaining life is a useful way to frame that decision.
Mildenhall Roofers covers Thetford and the broader area including Mildenhall, Elveden, Icklingham, Barton Mills, West Row, Cavenham, Lackford and Kentford. If you need a realistic cost for a commercial roofing repair or replacement, call us to arrange a survey - we will give you a clear breakdown once we have seen what the roof actually involves.
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.
