Roof sealing and coating in Teesside
Roof sealing and coating across Teesside from £900 to £2,000: clear water-repellent sealers and coloured protective coatings applied after a full clean, slowing regrowth and restoring the look of faded tiles. Quoted honestly, including when it is not worth your money.
The optional extra, sold honestly
Roof sealing is the most oversold service in the trade, so the honest version first: no sealer makes an old roof new, and none is a substitute for repair. What a good sealer genuinely does is slow water absorption (so tiles dry faster and frost gets less purchase), slow moss and algae regrowth, and, with coloured coatings, restore the uniform look of a faded roof. On a sound roof that has just been properly cleaned, those are real benefits worth £900 to £2,000. On a roof with underlying problems, coating is paint over rust, and quotes here say so.
Clear sealer or coloured coating?
Clear sealers are invisible: water-repellent treatment that keeps the roof's current appearance while reducing moisture uptake and regrowth. The right choice on newer or good-condition coverings. Coloured coatings (slate grey, terracotta, charcoal) repaint the roof's face: the answer for faded concrete tiles where the look matters as much as the protection. Coatings cost more, need dry weather to apply and cure, and last eight to fifteen years depending on product and exposure.
The sequence that matters
Coating a dirty roof seals the dirt in. The only correct order is clean first, treat, dry, then coat, and any quote bundling them should show the clean as a separate visible line. Roofs also need a sound survey first: coating over cracked tiles or failing pointing hides problems until they are expensive, which is why the survey checks and prices any repairs separately before coating is quoted at all.
When we would say no
Very old, porous or crumbling tiles near end of life: coating buys little. Roofs with active leaks or structural issues: repair first. North-facing roofs under heavy tree cover where the owner's real problem is shade: biocide cycles are the better spend. A straight answer on this point is worth more than the coating sale, and it is what every quote here commits to.