When a roof in Bowthorpe starts letting in water, the first decision most homeowners face is whether to repair what's there or replace the whole thing - and getting that call right saves thousands.
Call any time. Calls are answered day and night and passed straight to our roofers.
A damaged roof does not automatically mean a new one. The choice between repairing and replacing is the most important judgement a homeowner can make, and the wrong call in either direction is expensive. Repair what should be replaced and you'll be back on a ladder every couple of years. Replace what could have been repaired and you've spent five to ten times what was necessary.
Poringland Roofers work across Bowthorpe and the surrounding parts of Norwich, handling repairs on pitched roofs, flat sections, chimneys and flashings. On every job, the starting point is an honest assessment of what the roof actually needs - not what generates the most work.
Most roof problems fall into a handful of categories. Slipped, cracked or missing tiles and slates are the most visible. Lead flashings around chimneys, dormers and roof abutments fail over time as the metal fatigues, lifts or is pushed out by frost. Mortar fillets crack and allow water to track behind the flashing. Ridge and hip tiles work loose as the bedding mortar softens.
Flat roof sections - felt or EPDM rubber - blister, split or pull away at edges. Gutters and fascias that have been neglected allow water to back up and saturate the roof edge. Velux and other roof windows develop leaks at their flashings, usually because the stepped lead or aluminium trim has been poorly fitted or has lifted. Valley gutters, whether lead, mortar-bedded or in a pre-formed tray, are a common source of persistent leaks that are easy to miss from the ground.
All of these are genuine repairs - things that can be fixed without touching the rest of the roof. What tips a repair into a replacement is the condition of what surrounds the problem area.
A repair is the right answer when the underlying structure is sound and the failure is localised. If a handful of tiles have slipped because a nail has corroded, the batten is still good, the felt beneath is intact and the surrounding tiles are solid, replacing those tiles is the correct approach. It takes an hour or two and costs a fraction of a new roof.
Similarly, a cracked flashing or a ridge tile that has dropped can be fixed without disturbing anything else. Lead flashings can be re-dressed, re-pointed or replaced in sections. Ridge tiles can be re-bedded in fresh mortar or relaid with a dry-fix system. These are skilled jobs but they are targeted jobs - the work stays exactly where the problem is.
Repair is also the right call when a roof is relatively young and has simply had one area of bad luck - storm damage, a branch impact, a manufacturing defect in a batch of tiles. In these situations, matching the existing tile profile and colour as closely as possible is important. Most manufacturers carry a wide range, and for older natural slate roofs, reclaimed slates can often be sourced to give a close match.
As a broad guide, individual tile or slate replacements typically cost from around £150 to £300 for a straightforward job, depending on access and the number of pieces involved. Reflashing a chimney with lead runs from roughly £350 to £800 depending on the size and how much of the existing material can be salvaged. Re-bedding ridge tiles along a standard terraced or semi-detached roof is typically in the range of £400 to £900. These are working figures for the Norwich area, not fixed quotes - the actual cost depends on what is found when the work starts.
Replacing a roof makes sense when the cost and disruption of repeated repairs starts to approach the cost of a new covering, or when the underlying structure is failing. There are specific signs that push a roof from the repair category into the replacement category.
Old felt beneath the tiles - particularly the original bitumen-saturated hessian felt used before the 1970s - becomes brittle and drops in pieces. Once the felt has failed, even a roof with mostly intact tiles offers very little resistance to driven rain. Battens rot when moisture gets behind the tiles and sits. When battens are soft and pulling away from the rafters, you cannot simply replace the tiles above them - the battens need to come off too, which means stripping the whole slope.
If a significant proportion of tiles are cracked, porous, or have lost their surface texture through weathering (something more common with concrete plain tiles than clay or natural slate), sporadic repairs become increasingly futile. You fix one area and a new problem appears a few metres away. At a certain threshold - often put at around 20 to 30 per cent of the covering being in poor condition - a full strip and recover is cheaper over five years than continuing to patch.
Structural issues such as sagging ridge boards, rotten wall plates or failed purlins will need addressing whatever the condition of the tiles. These are building structure repairs that a roofing contractor handles alongside, or before, any new covering goes on.
A full roof replacement on a standard three-bedroom semi-detached house typically costs between £5,500 and £10,000 in the Norwich area, depending on the pitch, the tile specification and whether any structural timber needs replacing. Larger detached houses and steeper pitches cost more. These figures assume stripping the old covering, replacing any failed timber, fitting new breather membrane and battens, and relaying with new tiles or slates.
Before any decision is made, the roof needs to be properly looked at. A visual inspection from ground level with binoculars tells you something but not enough - you need someone on the roof, checking tile fixings, pressing on the ridge tiles, looking at the flashings from close up and, where possible, getting into the loft space to look at the underside of the felt and the condition of the rafters.
A proper inspection should give you a clear description of what is wrong, what is causing it, and what the options are. You should come away knowing whether the problem is isolated or symptomatic of wider deterioration. If a roofer cannot explain why something has failed, that is a problem - understanding the cause is what stops the same thing happening again in two years.
Ask specifically about the felt and battens if the roof is more than 25 years old. Ask whether matching tiles or slates are available if the repair involves replacing pieces. Ask whether the proposed fix addresses the cause or just the symptom.
Flashings are the strips of lead or other metal that seal the junction between the roof covering and vertical surfaces - chimney stacks, parapet walls, dormer sides, and anywhere a roof meets a wall. They are the most common single source of roof leaks, and they are nearly always repairable rather than a signal to replace the whole roof.
A chimney flashing repair involves re-dressing or replacing the lead apron at the front, the stepped flashings up the sides, and the back gutter. If the lead is still in reasonable condition but has simply lifted, it can often be re-dressed and re-pointed into the brickwork joints with fresh mortar or lead wedges. If the lead is thin, pitted or has cracked through, it needs replacing - lead flashings on a well-maintained chimney should last several decades, so if they are failing early it is usually because the original lead was too thin or the joints were not properly chased.
Chimney stacks also need their pointing checked. Cracked or open mortar joints allow water to soak into the brickwork and emerge inside the property, sometimes several metres away from the actual entry point. This is why a wet patch on an upstairs ceiling is not always directly below where the water is getting in - it can travel along a rafter before dripping.
Many homes in Bowthorpe and nearby areas have a flat or low-pitch section - over a garage, a rear extension or a bay window roof. Felt flat roofs have a finite life: a well-laid three-layer felt system might last 15 to 20 years, but quality varies enormously depending on the original installation. EPDM rubber membranes, when properly bonded and detailed, can perform significantly longer.
Flat roof repairs are worth attempting when the membrane has a localised split, blister or edge failure and the rest of the surface is sound. When the felt is cracked across the whole surface, has multiple blisters, or when the decking beneath has softened, a full recover is the practical option. Attempting to patch a flat roof that has reached the end of its life is money spent that does not address the underlying deterioration.
A small flat roof repair - patching a split or re-bonding a lifted edge - typically costs from around £150 to £300. A full recover of a garage flat roof in EPDM is typically in the range of £800 to £1,800 depending on size and deck condition.
After a period of high winds, ridge tiles and lead flashings are the most likely casualties. Tiles and slates can also lift if their fixings have corroded over time and the wind gets underneath. If you find debris in the garden or notice daylight through the loft after a storm, a temporary cover may be needed while a proper assessment is carried out.
Do not feel pressured into a full replacement following storm damage without a clear explanation of what is actually wrong. A couple of ridge tiles down and a lifted flashing is a repair job. Be cautious of any contractor who, following storm damage, recommends a full replacement without a detailed explanation of why the rest of the roof cannot be salvaged.
If you are making an insurance claim for storm damage, the process usually requires a report or photographs of the damage in situ before repairs begin. Keep that in mind before allowing anyone to start work immediately after a storm.
We cover Bowthorpe and the broader Norwich area, as well as Sprowston, Thorpe St Andrew, Drayton and Spixworth. Whether it is a single slipped slate or a persistent leak that has resisted previous repair attempts, the approach is the same: find the actual source, explain the options, and carry out the work cleanly.
If you are unsure whether your roof needs a repair or a replacement, call us and we will arrange a proper roof survey. We will tell you what we find, what we recommend and why - before any work is agreed.
Tiles should be properly seated and clipped or nailed where fixings are required. New lead flashings should be correctly dressed into chased joints and secured with lead wedges before pointing. Re-bedded ridge tiles should use a mix that will flex slightly without cracking - some contractors use a dry-fix mechanical system instead of mortar, which avoids the cracking issue altogether and does not need re-pointing.
On any repair involving access across the roof, surrounding tiles should be left in the same condition they were found. New flashing lead should be the correct code weight for the application - Code 4 for flashings, Code 5 for back gutters. If a contractor cannot tell you what code of lead they are using, that is worth asking about.
After the work, you should be able to see clearly what has been done and, where possible, inspect the repair from ground level. The area should be left clean, with no broken tiles left on the roof and no loose mortar dropped into gutters.
If your roof in Bowthorpe or anywhere in the Norwich area is giving you concern, call Poringland Roofers for a roof survey. We will assess what is there, explain what needs doing and give you an honest view on whether repair or replacement is the right course - with no pressure either way.
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.
