Roof Replacement Portsmouth

The bitumen felt beneath most twentieth-century roofs becomes brittle earlier than the tiles above it, and tears at every lap, admitting water to the battens. A roof inspection from within the loft establishes its condition before any decision to strip and renew.

Across Portsmouth the post-war estates rebuilt after the city’s wartime bomb damage carry this generation of felt. The loft above each house in a run is inspected separately. Where the felt has perished, the battens beneath it are examined along their length.

On roofs near the coast the strip-back regularly shows nails and clips corroded to a stain in the timber, with the tiles above held only by their own weight. Stripping and refixing the covering restores the fixing across every course, in non-ferrous nails and clips.

Portsmouth sits on an island with open water on three sides, and its Victorian and Edwardian terraces have slate fixings old enough that this corrosion is common along a row. The new fixings stop at the party line.

Roofs from the post-war decades frequently incorporate asbestos cement in undercloaks, soffit boards or verge details, invisible until the tiles come off. Our team is trained to identify it, work stops around it, and a licensed contractor carries out the removal. The verge and soffit details are then rebuilt in new timber.

The prefab and council-built streets that replaced Portsmouth’s bombed housing fall inside that period. The verge and soffit details there are treated as suspect until the tiles are removed.

Valleys and chimney junctions convey considerably more water than any part of a slope, so the boards and lead beneath them deteriorate first. Where the strip-back exposes decayed junction timbers, new boards and lead go in as the slopes around them are laid.

Portsmouth’s terraced houses share chimney stacks along the ridge, and the junctions around them have taken water since the row was built. New boards and lead are set in as each slope is relaid.

A leak too minor to stain a ceiling can saturate the same rafter or valley board for years. The deterioration is apparent only once the tiles come off, and replacement is the stage at which those timbers come out. Where a rafter has lost its strength, new timber is sistered alongside it before the battens are set out.

Portsmouth’s Victorian terraces are old enough for this to have happened more than once, and each rafter along a shared roofline is checked in turn.

The scaffold, the skip and the first deliveries of battens, underlay and tile arrive at times and locations agreed beforehand. You move garden furniture and vehicles clear of the working area before the first morning. Our team manages everything else on the schedule.

The morning forecast determines how many courses come off, and no more is stripped than new underlay and battens can close by evening. Any section not reached is left weathertight, so the loft and the ceilings beneath it are protected overnight.

If the strip-back uncovers a rafter, purlin or flashing detail beyond the quote, work there stops until you have seen it and agreed the price. A written note records any further work before it proceeds. No item appears on the final invoice without your approval.

Underlay, battens, flashings and the new tiles go on in that order, each course lapping the one beneath. Whether the specification is tile roofing or natural slate, each slope is completed and its ridge and verge detailed before the next is started.

A director walks you round the finished roof from ground level and hands over the written documentation for the work. Our team removes the waste and clears the new gutters, and the scaffold is booked off site once the final check is signed.

Four factors determine the cost of a replacement:

• The quantity of tile and batten removed, and its disposal
• Any rafter or batten renewal the strip-back proves necessary
• The dimensions, pitch and complexity of the slopes
• The tiles or slates going back on, over new underlay and fixings

A free survey conducted by a director establishes all four, and your written, itemised quote follows within 48 hours of it, with every item priced and no hidden extras.

Yes, and the match is specified at survey. Portsmouth’s Victorian and Edwardian terraces were roofed mainly in slate and clay tile, and the post-war estates carry concrete interlocking tile instead. A replacement on either matches like for like. Slate roofing goes back in the same dimension and colour, or clay tile to the original gauge and ridge detail. New slate sits brighter than weathered slate beside it, so we show you a sample against the row before ordering.

In most cases, no. Where the new roof is similar in appearance to the one it replaces, a like-for-like replacement is normally permitted development and no application is necessary. A listed building is the exception, and consent is required before the covering or the chimney stack details change. Controls in a conservation area differ from one designation to the next, and a change of covering can require consent. We establish which applies at survey, and the quote accounts for it before any work begins.

On an older property it generally is. Portsmouth’s Victorian and Edwardian terraces carry roofs at the age where individual repairs begin to recur. A replacement adds the layers absent from a roof of that generation, including a breathable roof underlay, mechanically fixed tiles and a ventilated ridge. The fixings then meet current standards across every slope, and the loft has a ventilation path.

Contact us by telephone or through the enquiry form on this website. The free survey is conducted by a director at a time convenient to you, covering the eaves, flashings and loft interior. If the roof retains serviceable life, we recommend a repair and quote for that instead. Otherwise your written, itemised quote for the replacement follows within 48 hours of the visit. We cover the whole of our Portsmouth service area.