Mastic man in Bromley

Resealing and mastic work across Bromley

Bromley is the largest London borough by area, and much of it is suburban houses with gardens, set against wide stretches of Green Belt to the south. Most homes are owner-occupied, so a lot of our work here is for families who have lived with the same bathroom for years and want it looking right again.

Mr Mastic is based in Crawley and covers every part of the borough, from Penge and Beckenham to Orpington and Biggin Hill. We cut out tired sealant around baths, showers and kitchen worktops, renew window and door mastic and seal outside joints. If you’re wondering what to look for when you hire someone, read our guide on choosing a mastic man.

Railway villas, garden suburbs and interwar semis

Beckenham grew after the railway arrived in 1857, when large villas with wide roads and big gardens were built around the station. Orpington’s station opened in 1868 and was expanded in 1904, and house building there peaked in the 1920s and 1930s, turning the area into a London suburb. Petts Wood was planned by Basil Scruby in the 1920s as a garden suburb and was largely complete by 1939; parts of it, such as The Covert, The Thrifts and Chislehurst Road, are now conservation areas.

Houses from these years share familiar problems. Original timber windows have often been replaced with uPVC, and the mastic from those replacements is now hard, shrunken and gaping at the corners. Bathrooms have been refitted, sometimes more than once, and the joint where the bath meets the wall has been patched instead of redone.

Chislehurst has large areas under conservation protection, and Bickley has a high share of detached houses. Bigger homes often have several bathrooms and en-suites, and we can reseal them all in one visit. Where the old frames are timber, we pick a sealant that stays flexible and can be painted to match; our window and door mastic page explains the options.

Sealant services across Bromley

• 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: Frame perimeters inside and out resealed with flexible, colour-matched sealant, with backing rod where the gap is deep.
• Commercial & hotel sealant: Sealant programmes for offices, hotels, care settings and schools, with early or late working where it helps.
• Remedial sealant & repairs: Leaks and lifting beads from earlier sealant jobs put right, starting with finding out why they failed.
• 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: Split or perished joints in walls and cladding replaced with exterior sealant designed to stretch with the building.
• New-build mastic & snagging: Snagging sealant for new homes and plot-by-plot mastic for builders and developers.
• Floor & skirting joints: Movement joints in tiled and concrete floors, and skirting gaps, sealed so they stay tidy and keep dirt out.
• Regrouting: Shower and splashback grout replaced where it has cracked or stained, with silicone in the movement joints.
• Glazing & conservatory sealant: Glazing joints on conservatories, roof lanterns and screens renewed with a sealant suited to glass and frames.
• 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.

Choosing a mastic man in Bromley

Every Bromley job gets the same care, whether it is a single basin or a house full of bathrooms. Behind it are 20+ years of resealing experience, full insurance and ARBOMaster approved applicator status, with Arbo and Everbuild sealants used throughout. We have finished more than 2,847 projects and earned a 4.9-star Google rating from 180+ five-star reviews. You will have a clear quote before we start, and a one-year guarantee once we are done.

Places we pass in Bromley

From the centre, the nearest railway station is Bromley South station. Local landmarks include The Mall (less than half a mile east) and Bethlem Museum of the Mind (1.6 miles south-east). Around the centre, our work takes us to homes, rentals and businesses close to St Mark's Church of England Primary School, Bullers Wood School for Boys, Holy Trinity College Bromley and Church of St Peter and St Paul. Nearby green spaces include Downham Woodland Walk and Summer Hill.