Mastic man in Dartford

Resealing and mastic work across Dartford

Dartford sits at the Kent end of the Thames crossing, and it’s changing quickly. Alongside the older streets in the Darent valley there are large new estates, apartment blocks and the growing neighbourhoods of Ebbsfleet Garden City. That mix keeps a mastic man in Dartford busy: shower trays that leak, bath seals that have gone black, and window and door joints that are letting in draughts or rain.

We’re based in Crawley and cover Dartford, Greenhithe, Stone and the villages nearby. Every job starts with the old sealant coming out completely, because new silicone won’t bond to old. Then we clean, dry and lay one neat bead of the right product. Our shower resealing page walks through the steps.

Valley terraces, The Bridge and Ebbsfleet’s new homes

The town centre lies in the valley where the River Darent meets the old London to Dover road, and its older terraced streets have the usual issues of refitted bathrooms, uneven walls and replacement windows with ageing mastic. In these houses we often find sealant laid over sealant, which traps mould and lets water creep behind the bead. We remove all of it, check the joint behind for damp and start again with a fresh, flexible bead.

Dartford also has a lot of newer housing. The Bridge, close to the Dartford Crossing, was launched in 2003 and has grown into a community of around 1,500 homes. Ebbsfleet Garden City, set up in 2015 across Dartford and Gravesham, is planned for up to 15,000 homes, with neighbourhoods such as Castle Hill already well established and thousands of homes completed.

New homes bring their own sealant problems. Bathrooms and kitchens are fitted quickly, and the building then dries out and settles, so developer silicone often splits within a year or two. If you’re working through a snagging list, our guide to new-build sealant snagging explains what to check and when.

What we do in Dartford

• 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: Window and door mastic that has dried out in the sun replaced with a weather-resistant joint that can move with the frame.
• Commercial & hotel sealant: Hotels, offices, washrooms and welfare areas resealed room by room, with out-of-hours working possible to arrange.
• Remedial sealant & repairs: Second opinions on sealant that keeps failing: we strip it out, check for movement or leaks and reseal it properly.
• Fire-rated sealant: Fire-rated and intumescent sealant around gaps, frames and service penetrations, to the product’s tested details.
• External & façade joints: Expansion joints in brick, render and cladding cut out and renewed at the right depth so they can move without splitting.
• 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: Glass-to-frame joints on conservatories, rooflights and shower screens cut out and resealed.
• 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 Mr Mastic in Dartford

Plenty of firms can run a bead of silicone, but a joint that lasts depends on the work done before the gun comes out. Our ARBOMaster approved team has spent over 20 years getting that preparation right, is fully insured and uses Arbo and Everbuild sealants only. With 2,847+ projects completed and a 4.9-star Google rating from 180+ five-star reviews, Dartford customers can expect a clear quote before we begin and a one-year guarantee once we’re done.

Places we pass in Dartford

For trains, Dartford station is closest to the centre. Local landmarks include Bluewater (2.1 miles east), Dartford Library (less than half a mile west) and Stone Castle (2.3 miles east). Typical jobs near the centre are in homes and businesses around Dartford Primary Academy, Leigh Academy, Stone Lodge School and Church of the Holy Trinity. Nearby green spaces include Wansunt Pit and Sawyers Lake.