Mastic man in Oxford

Mastic and sealant work in Oxford

Oxford is a city where old buildings are the norm, and sealant work on them needs care. We cover Oxford and the rest of Oxfordshire, resealing bathrooms and kitchens, replacing window and door mastic, pointing joints with traditional sand mastic and sealing external joints.

Whether you’re in a Victorian terrace in Jericho, a North Oxford villa or a modern flat in Headington, the basics don’t change. All old sealant comes out, the joint is cleaned and dried, and the right product goes in. On older buildings, the right product matters more than ever. We also reseal kitchens, where worktop and sink joints take as much water as any shower.

Colleges, Victorian suburbs and listed buildings

The city centre is dominated by the colleges of the University of Oxford, and Oxford has a very large number of listed buildings. Outside the centre, Victorian and Edwardian housing fills Jericho, East Oxford around the Cowley Road, and the large Gothic-style villas of North Oxford. Further out, Headington, Marston and Cowley have more 1930s and post-war homes.

On period buildings, the sealant has to suit the material. On stone we use neutral-cure products rather than acetoxy silicone, which smells of vinegar and can affect some stone and metals. Around timber sash windows in stone or brick, traditional burnt sand mastic is often the better choice, and our sand mastic page explains why. If your home is listed, check with the council before changing anything visible outside.

Inside, many Oxford terraces have small bathrooms fitted where a bedroom or box room used to be. Floors are timber, ventilation is limited and the bath or shower is used hard. We fill the bath before sealing, use flexible anti-fungal silicone and check the corners and tray edges, where leaks usually start.

Our services in Oxford

• Bathroom & kitchen resealing: Baths, showers, basins, wet rooms, worktops and sinks: old sealant cut out, mould treated and a new bead of anti-fungal silicone laid.
• Window & door mastic: Cracked or shrunken mastic around window and door frames, sills and patio doors replaced with a weatherproof sealant.
• Commercial & hotel sealant: Hotels, offices, washrooms and welfare areas resealed room by room, with out-of-hours working possible to arrange.
• Remedial sealant & repairs: Failed, botched or over-sealed joints stripped out, the cause found and the joint resealed properly.
• Fire-rated sealant: Fire-rated and intumescent sealant around gaps, frames and service penetrations, to the product’s tested details.
• External & façade joints: Brickwork movement joints, render and cladding joints resealed with backing rod and flexible exterior sealant.
• New-build mastic & snagging: Failed builder sealant in new homes put right, and plot mastic for developers.
• Floor & skirting joints: Skirting-to-floor gaps, tiled floor movement joints and concrete floor joints sealed with the right product.
• Regrouting: Cracked, stained or crumbling grout raked out and replaced, with corners resealed in silicone.
• Glazing & conservatory sealant: Conservatory, rooflight, glass panel and shower screen joints resealed with glazing silicone.
• Gutter, fascia & soffit sealing: Leaking gutter joints, end caps, fascia and soffit joints resealed with exterior sealant.
• Sand mastic for sash & case windows: Traditional burnt sand mastic renewed around sash and case windows and doors in stone and brick.

Why Mr Mastic in Oxford

We’re based in Crawley and cover all of Oxfordshire. Mr Mastic has 20+ years in the trade, we’re fully insured and ARBOMaster approved, and we use Arbo and Everbuild sealants. We’ve completed 2,847+ projects, and our 4.9-star Google rating comes from more than 180 five-star reviews. You’ll have a clear quote before we start and a one-year guarantee once we’ve finished, whether the job is a single shower or every sash in the house.

Around Oxford

From the centre, the nearest railway station is Oxford station. Well-known places nearby include Clarendon Shopping Centre (1.1 miles west), Warneford Hospital (less than half a mile east) and Rumble Museum (less than half a mile east). Around the centre, our work takes us to homes, rentals and businesses close to East Oxford Primary School, Cheney School, Headington Rye Oxford and St Clement's Church. Green spaces within reach include CS Lewis Nature Reserve and Headington Hill.