If your roof in Soham has reached the end of its life, a full replacement gives you a structurally sound, watertight home built on timbers that have been properly checked and prepared.
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A roof replacement is not simply laying new tiles over old ones. The entire covering is stripped back to the roof timbers, which are then inspected closely for rot, woodworm, or structural movement. Any damaged rafters, battens or ridge boards are repaired or replaced before anything new goes on top.
Once the structure is sound, new roofing felt (or a modern breathable membrane) is fixed to the timbers, fresh treated battens are nailed across, and the tiles or slates are laid from the eaves up to the ridge. Lead or purpose-made flashing is dressed around chimneys, dormers, and any abutments with walls. The ridge is then bedded or dry-fixed, and verges are finished neatly to shed water clear of the fascias.
Fascias, soffits and guttering are often renewed at the same time, because the scaffold is already up and the old timber boards are frequently rotted at the eaves. uPVC fascia and soffit boards are the most common replacement, though timber is still available if your property requires it.
Concrete interlocking tiles from the 1960s and 1970s typically last 40 to 60 years, though they can deteriorate sooner if the original bedding mortar on the ridge and verges has cracked and let water in. Traditional clay plain tiles, if well maintained, can exceed 80 years. Natural slate roofs, where the slates themselves remain sound, can last a century or more, but the nails holding each slate corrode long before the slate itself fails.
A common problem is a roof that looks reasonable from the ground but has significant hidden issues: slipped slates caused by nail failure, cracked ridge tiles that have been repeatedly pointed over, or valleys blocked with moss and debris that hold moisture against the felt. When repair costs start approaching the cost of a full re-roof, or when the felt beneath has perished and water is entering the roof space, replacement is usually the more sensible investment.
Typical full roof replacement costs in this part of Cambridgeshire range from around £5,000 to £8,000 for a standard semi-detached or terraced house, and £9,000 to £15,000 or more for a larger detached property. Those figures depend on the pitch, the materials chosen, whether the timbers need work, and the complexity of the detailing around chimneys and dormers. Get itemised figures rather than a single lump sum so you can see what you are paying for.
The material you choose affects the look of your home, the weight the structure must carry, and how much maintenance the roof needs over its lifetime. Here is a straightforward comparison of the main options.
If you are replacing like for like on a period property, your local planning authority may have views on what materials are acceptable, particularly in conservation areas. It is worth confirming this before you order materials.
Many homes have a flat or shallow-pitched section, often over a rear extension, bay window, or porch. These are replaced using different systems to a pitched roof. Traditional built-up felt is still used but has largely been superseded by single-ply EPDM rubber membranes, which are more flexible, less prone to splitting in cold weather, and longer-lasting when correctly installed.
EPDM membranes are bonded or mechanically fixed to a decking board, then finished with edge trims. When done properly, a rubber flat roof can remain watertight for 20 years or more. If your flat roof is only a small section of an otherwise pitched roof, it is often sensible to deal with both at the same time while the scaffold is in place.
Garage roofs are a separate consideration. A garage roof conversion from flat to pitched is an increasingly popular option, particularly where the existing flat roof has been a source of repeated leaks. Converting a flat garage roof to a pitched one gives a more durable structure and often improves the appearance of the property. This is a more involved job than a straight re-roof as it requires new timber framework and may need building regulations approval depending on the specification.
Properties with dormers, roof windows or multiple changes of pitch need more time and skill to detail correctly. Each dormer has its own cheeks, a front face, and a junction with the main roof slope, all of which require careful flashing to remain watertight. Lead is the traditional and most durable flashing material; the correct code of lead for each application matters and should be specified rather than left to chance.
Roof windows are often replaced at the same time as a re-roof. The existing kerb or frame can sometimes be reused, but if the window is old and draughty it makes sense to replace it while the surrounding tiles are already lifted. Replacement roof windows must be correctly flashed and counter-flashed to prevent water tracking in behind the frame.
Valley details are another area where poor workmanship shows up quickly. Open valleys lined with lead or a purpose-made valley trough drain water efficiently. Closed or swept valleys look neater but require more skill to keep watertight. If your existing roof has mortar-pointed valleys that are cracking, open valley troughs are a practical and lower-maintenance alternative.
This is the part of the process where homeowners most often find themselves at a disadvantage. Roofing is not a sector with simple, visible standards, and a quote that looks similar on paper to another can represent very different quality of work. Here is what to ask, and why each question matters.
Any contractor willing to do good work should be able to give you a written quote that lists the scope clearly: stripping existing covering, inspecting and repairing timbers, breathable membrane or felt type, batten size and centres, tile or slate type, flashing specification (material and code), ridge type (wet-bedded or dry-fixed system), and what happens with disposal of old materials. If a quote simply says "re-roof in tiles - £X", you have no way of knowing what you are actually paying for or comparing it with others.
Ask specifically what breathable membrane or felt will be used. There is a significant difference between a basic underlay and a high-performance breathable membrane, and the cost difference is modest enough that the better option is always worth asking for.
Roofing battens must be sized and spaced to the manufacturer's requirements for the tile being laid. Using undersized or under-spaced battens is a common shortcut that is invisible once the tiles are on. Ask the contractor to confirm the batten size they will use and whether it is treated timber. Untreated battens will not last as long, particularly in a ventilated roof space where condensation cycles are normal.
Tile fixing is another area to ask about. In exposed locations, tiles should be mechanically fixed (clipped or nailed) at a greater proportion than is required in sheltered areas. The British Standard for slating and tiling (BS 5534) gives guidance on fixing rates depending on exposure, and a knowledgeable contractor should be able to explain what they will do and why.
Find out whether the contractor will use directly employed roofers or subcontract the labour. There is nothing inherently wrong with subcontracting, but you should know who will be on your roof and who is responsible if something goes wrong. If the company taking your money is different from the people doing the work, ask how quality is supervised.
Ask whether the contractor will be on site during the job or whether a foreman will be present throughout. A re-roof takes at least two to three days on a typical semi-detached property, and longer on larger homes. Unattended labour with no quality check is a risk on any trade job.
Almost every re-roof turns up some degree of timber damage, particularly around old lead flashings, at the ridge, or at the eaves where water has been sitting. Ask the contractor how they handle this. A good answer is that they will photograph the damage, explain what needs doing, and agree the additional cost with you before proceeding. An evasive or vague answer is a warning sign.
Some contractors include a small allowance for timber repairs in their original quote. This is reasonable practice and means you are less likely to face a large unexpected bill part-way through the job. Ask whether timber repairs are included or excluded, and on what basis any additional cost would be calculated.
A full roof replacement requires a proper scaffold - not just a ladder or a tower. The scaffold should provide a safe working platform at eaves level and edge protection. Ask whether the scaffold is included in the quote or charged separately, and who is responsible for erecting and inspecting it. Scaffold should be inspected after it is erected and after any significant weather event before work continues.
Check what will happen to your property at the end of each working day if the job runs over multiple days. The roof should be temporarily weatherproofed overnight, particularly if rain is forecast. Ask how they will protect your property if there is an unexpected delay.
A contractor who has been working in the Soham and wider Cambridgeshire area should be able to point to recent jobs locally. Ask for the addresses of two or three recent re-roofs and, ideally, permission to speak to those homeowners. Photographs are useful but easier to fabricate; a homeowner reference is harder to fake.
If a contractor cannot provide any references for completed roof replacements in the area, that should give you pause regardless of how low the price is.
Three quotes gives you enough information to understand the range and spot outliers. A quote significantly cheaper than the others usually reflects either a cut in material specification, a cut in labour time, or experience being priced out of the market for a reason. A quote significantly more expensive than the others should be justified by the specification or by demonstrable track record.
When comparing quotes, compare the specification line by line. If one contractor is quoting breathable membrane and dry-fix ridge while another is quoting basic felt and mortar bedding, those are different products. The cheaper option may become the more expensive one within ten years.
Old tiles, broken slates and roofing felt are heavy, bulky waste. Ask whether a skip will be used or whether the contractor will remove waste themselves. If a skip is placed on the public highway, a permit from the local authority is required. Ask who is responsible for obtaining this. Waste left on your driveway or garden for days after completion is a sign of poor organisation.
Cambridge Roofers covers Soham and the surrounding area, including Ely, Histon, Girton, Fulbourn, Waterbeach, Milton, Trumpington and Impington. If you are not certain whether we cover your location, call us and we will confirm straight away.
For a free roof survey and written quote in Soham, call a local roofer. A good roofer will inspect your roof properly, explain what they find, and give you a clear, itemised figure before any work begins.
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