Mastic man in Bishops Waltham

Resealing and mastic work across Bishops Waltham

Bishop’s Waltham is a small market town at the source of the River Hamble, on the old route between Winchester and Portsmouth, with a foot in the South Downs National Park. It is the largest settlement in the Winchester district outside the city, and its centre is full of listed and Georgian buildings, many now home to independent shops. Mr Mastic covers Bishop’s Waltham from our base in Crawley.

In a town like this, resealing is as much about care as it is about technique. We cut out old sealant without damaging the surface beneath, choose colours that sit well with older materials, and leave a neat, even joint. Inside, we reseal baths, showers, basins and kitchens. Outside, we renew window and door mastic. Our colour-matched resealing service is often the right choice for period homes.

Listed buildings, Victorian brick and later family houses

The historic centre sits around the ruins of Bishop’s Waltham Palace, begun in 1158, and material from the palace was reused in buildings across the town. The High Street has many listed buildings, and there are much older survivors too, including the Crown Hotel, parts of which date from the 1500s, the 17th-century Barleycorn on Basingwell Street and the Bunch of Grapes on St Peters Street.

Newtown was built in Victorian times as housing for workers, much of it in local brick, and the large red-brick house known as The Priory went up there in the 1860s. Bishop’s Waltham bricks were also used for Victorian houses in nearby Swanmore and Waltham Chase, and Abbey Mill on Station Road dates from 1862. Homes of this age often have small bathrooms at the back or in former bedrooms, with uneven walls that make a tidy sealant line harder to achieve. Elsewhere, the town has later 20th-century houses and newer homes, where bathrooms and kitchens are more standard but still need resealing as joints age.

In older buildings, the main job is often around baths and basins set against walls that are not quite straight, and around timber windows that have been painted many times over.

What we do in Bishops Waltham

• Bathroom & kitchen resealing: Bathroom and kitchen joints taken back to a clean, dry surface and finished with fresh anti-fungal silicone that won’t lift.
• 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: Gaps in fire-separating walls and floors sealed with fire-rated products, following the tested details for each one.
• 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: Failed builder sealant in new homes put right, and plot mastic 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: Tired or mouldy grout raked out and renewed, and the internal corners finished in flexible 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 sand mastic for period windows and doors where a modern sealant would look out of place.

Why choose Mr Mastic in Bishops Waltham

In an old town, the person you let into your home matters. We have been doing sealant work for more than 20 years, we are fully insured, and we are ARBOMaster approved applicators using Arbo and Everbuild products. Over 2,847 projects have earned us a 4.9-star Google rating from more than 180 five-star reviews. You get a clear quote before we begin, and every job has a one-year guarantee.

Places we pass in Bishops Waltham

For trains, Botley station is closest to the centre. Places most people will know nearby are Bishop's Waltham Museum (less than half a mile south-west). Typical jobs near the centre are in homes and businesses around Bishop's Waltham Junior School, Swanmore College of Technology, Church of St Peter and The Crown Hotel. Green spaces within reach include Bishops Waltham Branch LNR and Beacon Hill.