Damp proofing in Middlesbrough
Rising damp treatment, penetrating damp repairs, condensation control, mould treatment and cellar waterproofing across Middlesbrough TS1 to TS8, where late Victorian terraces with tired slate damp proof courses and blocked-up cellars generate most of the local damp work.
The town's housing tells you what to expect
Middlesbrough grew almost entirely between 1850 and 1910, and the terraced streets of Gresham, Ayresome, Newport, North Ormesby and older Linthorpe are the result: solid nine-inch brickwork, lime mortar, a slate damp proof course two courses above the pavement, and a coal cellar under the front room. Every one of those features has a damp implication a century and a half later. Slate courses crack as buildings settle, lime mortar erodes on the weather side, and cellars that were ventilated by a pavement grate now sit sealed.
Ground levels are the local culprit
The most frequent cause of what looks like rising damp across the town is not a failed damp proof course at all. Back yards concreted over, front gardens turned into parking, and successive layers of tarmac on the pavement side have all raised external levels above the internal floor. Water then simply steps over the barrier. Digging a channel back to the correct level costs a fraction of an injection job and is always worth checking first.
Cellars, alleys and party walls
Terraced cellars turn up in nearly every enquiry from the older streets. Where they are used for storage, reopening the grate and clearing the gully often does more than any treatment. Where they are being converted, a designed waterproofing system is the honest answer. Back alleys create their own problems too: gutters over a shared passage rarely get cleared, and a blocked one soaks a party wall for both neighbours at once.
Newer parts of the town
Out at Coulby Newham, Hemlington and Marton the stock is post-war cavity construction, and the damp picture flips: much less rising damp, far more winter condensation and black mould in bedrooms, usually where an extractor fan is missing, ducted into a loft, or wired to a light switch nobody uses. Ventilation work is cheaper than damp proofing and fixes it properly.
Prices in Middlesbrough
Chemical damp proof course £70 to £120 per linear metre with replastering, so a typical terrace front room £600 to £1,400 and a full ground floor £1,800 to £3,400. Damp surveys £150 to £350. Mould treatment £300 to £900 a room. Cellar tanking £80 to £150 per square metre.