Mastic man in Portslade-by-Sea

Resealing and mastic work across Portslade-by-Sea

Portslade-by-Sea is really two places in one. Down by the coast, the railway from Brighton arrived in 1840 and rows of terraced houses quickly followed. Up the valley, Portslade Old Village keeps its flint cottages, St Nicolas’ Church and the ruins of a Norman manor. Further north again, Mile Oak climbs towards the Downs. Each has its own sealant jobs, and Mr Mastic covers all of them from our base in Crawley.

We reseal baths, showers, kitchens and basins, renew window and door mastic, and seal the joints that let weather into older brick and render. If your bath sealant has gone black, split or come away from the tiles, the fix is the same every time: cut it out, clean and dry the joint, and lay a fresh bead of the right silicone.

Terraces by the sea, flint up the valley

South of the railway, Portslade-by-Sea is mostly 19th-century terraced housing, broken up by parks and allotments, with the main shops on Station Road. Many of these houses have had bathrooms moved upstairs or squeezed into a back addition, and the floors under the bath are often timber that flexes with use. A rigid bead on a moving bath tears quickly, so we use flexible sanitary silicone and seal with the bath full.

Portslade Old Village became a conservation area in 1974, and its mix of cottages and the large 1881 brewery building gives the valley a character all its own. Flint walls are uneven, so the joint between a window frame and the wall can vary in width from one end to the other. We fill deep gaps with backing rod first so the mastic is the right depth, and choose a colour that sits quietly against the frame.

Mile Oak was built mainly from the 1930s onwards, with council and private houses, then housing association and private homes around Chalky Road after the war, and building carried on until the end of the 20th century. Downs Park, on the eastern edge, dates from the late 1970s to the 1990s. Window and patio door mastic from those years has often hardened and cracked by now.

Jobs we take on in Portslade-by-Sea

• Bathroom & kitchen resealing: Every joint in the bathroom and kitchen, from the bath edge to the worktop, stripped back and resealed with anti-fungal silicone.
• Window & door mastic: Hardened, gappy mastic around frames, sills and French or patio doors cut out and renewed to keep draughts and rain out.
• Commercial & hotel sealant: Hotels, offices, washrooms and welfare areas resealed room by room, with out-of-hours working possible to arrange.
• Remedial sealant & repairs: Messy, layered or wrong-product sealant cut out and replaced with the right sealant, laid the right way.
• Fire-rated sealant: Fire-rated sealant for service penetrations and frame gaps where it has been specified, applied to the tested details.
• External & façade joints: Outside movement joints given new backing rod and a flexible, weatherproof sealant in a colour to match the wall.
• New-build mastic & snagging: Early-failing sealant in new homes fixed properly, plus mastic packages and snagging for developers.
• Floor & skirting joints: Gaps under skirting boards, tile movement joints and concrete floor joints sealed with a product that suits the traffic.
• Regrouting: Cracked, stained or crumbling grout raked out and replaced, with corners resealed in silicone.
• Glazing & conservatory sealant: Leaking conservatory and rooflight joints, glass panels and shower screens resealed with silicone made for glass.
• Gutter, fascia & soffit sealing: Dripping gutter joints and end caps, and gaps at fascias and soffits, sealed with weatherproof exterior sealant.
• Sand mastic for sash & case windows: Sash and case window surrounds in stone and brick re-pointed with traditional sand mastic.

What you get with Mr Mastic in Portslade-by-Sea

Portslade is a straightforward trip down from Crawley, and the job is done the same careful way as at home. Expect a team with over two decades in the trade, full insurance, ARBOMaster approved applicator status and Arbo and Everbuild sealants. More than 2,847 projects and a 4.9-star Google rating from 180+ five-star reviews show how we work. The price is agreed in a clear quote up front, and our one-year guarantee covers the finished seal.

Getting around Portslade-by-Sea

For trains, Fishersgate station is closest to the centre. Places most people will know nearby are Churchill Square (3.4 miles south-east) and British Engineerium (1.8 miles east). Closer in, we work on homes, rented flats and businesses near Peter Gladwin Primary School, King's School, St Nicolas Church and The Mill House. Green spaces within reach include Shoreham Beach and Thundersbarrow Hill.