Roofing in Sawston

Trusted Roofing specialists
in Sawston

Sawston is a South Cambridgeshire village that has grown steadily over the years. The village has historically had an industrial side, and the mix of residential and light-commercial buildings means roof types here can vary considerably.

Roofing in Sawston and the Surrounding Villages

Sawston has grown steadily over the decades, and that growth shows in the variety of roofs across the village. You will find clay and concrete plain tiles on older properties, large-format interlocking concrete tiles on later semis, and natural slate on some of the period cottages. Each of those materials ages differently and fails in different ways, so a proper inspection before any repair or replacement work is the right starting point.

We carry out roof surveys in Sawston and nearby settlements including Whittlesford, Babraham and Great Shelford. If you have noticed a damp patch on a bedroom ceiling, slipped or cracked tiles, or a ridge that looks uneven from the street, call us to arrange a survey before the problem develops further.

Tile and Slate Repairs

Slipped and cracked tiles are a common source of roof leaks on older housing. On older properties the nibs that hold plain tiles to the battens can harden and snap, especially after a cold winter, and a single displaced tile can let water track under several rows before it appears inside the house. On concrete interlocking tiles, the issue is more often that the tiles themselves become porous with age and absorb water rather than shedding it.

A proper tile repair means lifting the surrounding tiles, checking the underlay and batten beneath, replacing any that are rotten, and refixing with correct-gauge clout nails. Simply pushing a slipped tile back into position without checking the batten is a short-term fix that fails quickly. We match replacement tiles to the existing roof as closely as possible; for clay plain tile roofs this is worth doing carefully because mismatched colours stand out and can affect a property's appearance.

Natural slate needs a different approach. Welsh slate and imported Spanish slate behave differently when re-fixing, and the right fixing method (copper or stainless steel nails, never galvanised where they will be exposed to moisture) matters for longevity. Typical costs for a straightforward slate repair in this part of Cambridgeshire run from around £150 to £400 depending on access and the number of slates involved.

Flat Roof Repairs and Replacement

Many properties have flat or low-pitch extensions, and the built-up felt roofing on those extensions can reach or pass the end of its useful life. Signs that a felt flat roof needs attention include bubbling or cracking on the surface, pooling water that does not drain away, and soft or spongy areas when you press the surface. Left alone, a failing felt roof will allow water into the timber deck below, and replacing a rotted deck adds significantly to the repair cost.

For replacement work we use torch-on felt systems or EPDM rubber membrane, both of which outperform the original three-layer felt in durability. EPDM is particularly well suited to flat roofs with awkward angles or protrusions because the membrane is flexible and can be dressed neatly around upstands and flashings. A well-installed EPDM flat roof on a domestic extension typically lasts considerably longer than the original felt it replaces. Flat roof replacement on a standard single-storey extension in Cambridgeshire generally costs in the region of £800 to £2,000, depending on the size of the area and the condition of the existing deck.

If only part of the surface is damaged, a targeted repair using cold-applied lap sealant or a heat-welded patch can extend the life of a felt roof that is otherwise sound. We will tell you honestly whether a repair is worthwhile or whether replacement is the more sensible spend.

New Roofs and Full Re-roofs

A complete re-roof is sometimes the right answer, particularly on properties where the batten and underlay have both deteriorated or where the original roof covering was a material that is no longer performing well. On some older properties, concrete interlocking tiles can become so porous and heavy that the sarking has been under stress for years. Stripping back to the rafters, fitting new breathable underlay, re-battening and relaying with new tiles gives the roof a proper fresh start rather than a patched one.

Where a property is being extended or reconfigured, we can advise on how to tie the new roof into the existing structure so that valleys, abutments and flashings are correctly detailed. Lead flashings around chimney stacks and at roof-to-wall junctions are a common source of leaks on older Cambridgeshire homes, and these are worth renewing when a re-roof or major repair is carried out.

Guttering and Drainage

Gutters and downpipes are a frequent afterthought but a blocked or cracked gutter will drive water back under the fascia and into the wall below, causing damp that is expensive to fix. On older properties, cast-iron guttering may have been replaced piecemeal with mismatched uPVC or may still be in place and failing at the joints. Cast iron can be repaired and repainted and will outlast uPVC, but where the sections are beyond repair, a like-for-like replacement in uPVC or a deeper-profile system to handle heavy rainfall is the practical solution.

We clear gutters, reseal or replace sections, refix loose brackets and replace downpipes as part of our service. This work is most usefully done in autumn, before leaf fall blocks the flow, or in spring once any winter debris has accumulated.

Lead Work and Flashings

Lead flashings seal the junction between a roof covering and a vertical surface such as a chimney stack, parapet wall or dormer cheek. On older properties, lead work that has never been replaced can split or lift over time. Lime mortar used to point the lead into the brickwork also erodes, leaving gaps that allow water in. Re-leading a chimney stack, including step and cover flashings and back gutter, typically costs between £400 and £900 depending on the size of the stack and the access required.

Where original lead has been replaced with mortar fillets at some point in the past (a common shortcut), the fillet tends to crack within a few years and the leak returns. The correct fix is to cut chases in the brickwork, dress new lead and pin it correctly. This is slower work but it lasts.

Chimney Repairs

Older properties often have chimney stacks that are no longer used but are still structurally part of the roof. Unused stacks can deteriorate faster than active ones because they are not warmed from within, and the pointing and lead work around them is often the first thing to fail. Repointing a chimney stack and renewing the lead flashings is straightforward work when caught early; leaving a crumbling stack until it becomes structurally unsound is a much more expensive problem.

If a chimney is being decommissioned entirely, capping it with a ventilated lead cap prevents rain entry while allowing the flue to breathe, which avoids damp building up inside the stack.

What to Expect From a Roofing Inspection

A thorough roof inspection covers the external surface (tiles, slates or flat roof membrane), the ridge and hip cappings, all flashings and abutments, the guttering and fascia condition, and the chimney if there is one. Where access allows, we also check the underlay and batten condition from inside the loft. We will tell you what we find, what needs doing now, and what can reasonably be left for later, so you can make an informed decision about spend.

To arrange a survey of your Sawston property, call Newmarket Roofers directly and we will agree a convenient time to visit.

Sawston has a varied housing stock that includes properties from different eras. The village has an older historic core alongside newer private estates.