Mastic man in Greenwich

Resealing and mastic work across Greenwich

The Royal Borough of Greenwich runs from the riverside at Greenwich and the Peninsula out through Charlton, Woolwich and Plumstead to Abbey Wood and Thamesmead, and south to Blackheath, Kidbrooke and Eltham. Mr Mastic travels up from our base in Crawley to work right across it, resealing baths, showers, kitchens and wet rooms, and renewing the mastic around windows, doors and external joints.

A borough with this many kinds of home needs a sealant firm that adapts. A glass-walled flat near The O2 asks for something different from a 1915 cottage on the Progress Estate or a semi on a quiet Eltham road. What stays the same is the method: every old bead comes out, the joint is cleaned and dried, and the new sealant is chosen for the surface and the movement it has to cope with. That is how a seal lasts years, not months.

Arts and Crafts cottages, Edwardian estates and riverside towers

Eltham has two of the borough’s most distinctive estates. Archibald Cameron Corbett built the Eltham Park Estate between 1900 and 1914. The Progress Estate, put up in 1915 for skilled Royal Arsenal workers, has more than 1,000 cottage-style houses with tile hanging and timber framing, and it has been a conservation area since 1975. In these older homes we often find bathrooms that have been refitted over older floors, so the bath moves when it is filled and the sealant tears at the corners.

Further north the picture changes. Thamesmead’s first homes were occupied in 1968, many of them in concrete system-built blocks, and its Central and West areas sit in Greenwich. Kidbrooke Village has replaced the old Ferrier Estate with new flats, and Greenwich Peninsula has the Greenwich Millennium Village and a run of high-rise blocks near The O2. In new flats the developer’s sealant often splits within a year or two as the building settles; our new build sealant snagging guide explains what to look for.

Across the borough there are 23 conservation areas, including Blackheath, West Greenwich, Ashburnham Triangle, Charlton Village and Woolwich Common, so plenty of homes still have period timber windows that need careful pointing around the frames.

Jobs we take on in Greenwich

• 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: Guest bathrooms, staff washrooms and kitchens in commercial buildings resealed in a planned order that keeps the site running.
• 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 and intumescent sealant around gaps, frames and service penetrations, to the product’s 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: Snagging sealant for new homes and plot-by-plot mastic for builders and developers.
• Floor & skirting joints: Gaps under skirting boards, tile movement joints and concrete floor joints sealed with a product that suits the traffic.
• Regrouting: Shower and splashback grout replaced where it has cracked or stained, with silicone in the movement joints.
• Glazing & conservatory sealant: Glass-to-frame joints on conservatories, rooflights and shower screens cut out and resealed.
• 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.

Choosing a mastic man in Greenwich

We are a specialist firm, not general builders, so sealant is all we do. Mr Mastic has more than 20 years in the trade, carries full insurance and is an ARBOMaster approved applicator, working with Arbo and Everbuild products. Over 2,847 projects and a 4.9-star Google rating, from 180+ five-star reviews, show how that care adds up. Before we pick up a knife you get a clear quote, and once the job is finished it carries a one-year guarantee.

Around Greenwich

For trains, Maze Hill station is closest to the centre. Well-known places nearby include Lewisham Shopping Centre (1.3 miles south-west), Royal Observatory (less than half a mile south) and Greenwich Castle (less than half a mile south-west). Typical jobs near the centre are in homes and businesses around Meridian Primary School, John Roan School, Royal School of Naval Architecture and Marine Engineering and St Mary's Church. For open space, Creekside Discovery Centre and Tower Hill are close by.