Kent · England
Mastic man in Otford
Sensitive resealing for Otford’s conservation-area cottages and listed buildings, plus window and bathroom mastic for family homes across the village.
- Anti-fungal silicone as standard
- 20+ years in the trade
- Guaranteed for a year
Your local mastic man for Otford
Otford lies on the River Darent about three miles north of Sevenoaks, with Kemsing to the east, Shoreham up the valley and Dunton Green to the south. It’s a village of around 3,500 people, centred on its listed pond and the remains of the Archbishop’s Palace, built in 1514. Mr Mastic covers Otford from our base in Crawley, resealing baths, showers and kitchens and replacing window and door mastic.
We start every job by removing the old sealant completely, because a new bead won’t bond to what’s left of an old one. The joint is cleaned, dried and, where mould has taken hold, treated, before we lay fresh anti-fungal silicone or a weatherproof mastic. For homeowners who want to know what to expect from a reseal, our article on how long silicone sealant lasts is a good place to start.
Forty listed buildings around the pond
The Otford Conservation Area covers about 16 hectares and contains around forty listed buildings. It was designated in 1969 and has been extended several times since, and part of the Archbishop’s Palace scheduled monument lies within it. Around the High Street and the pond you’ll find old cottages, houses and shop buildings, and a number of former shops have been converted into homes over the years.
Beyond the centre, Otford grew as a commuter village after its station opened in 1882, and today the station has trains towards London on both Southeastern and Thameslink. That growth brought newer family houses to the roads around the old centre.
In older cottages, sealant work means coping with uneven walls, flexing floors and joints where modern tiles meet old plaster. In shop conversions, bathrooms are often squeezed into rooms that were never designed for them. In the family houses, the usual jobs are refitted bathrooms whose seals have failed and uPVC windows with hardened mastic. For bathrooms where the sealant must match a particular colour, see our colour-matched resealing page.
A riverside village and its flood history
Otford sits right on the Darent, and the village was badly flooded by the river in 2013 and 2014, with some shops closed for months. For homes near the river, sound, flexible sealant around ground-floor doors, thresholds and frames is part of keeping the weather out, and after any repair work we check that new joints are clean, dry and properly bonded.
In listed buildings and conservation-area cottages, we replace failed sealant like for like and don’t alter the historic fabric around it. Where a joint will be painted, we use a paintable sealant rather than silicone. Parking around the pond and the High Street can be tight, so we’ll agree a time that suits you and keep our van and materials out of the way of neighbours and visitors to the village centre.
High Street shops, cafés and lets
Otford’s High Street has a small run of shops, cafés and pubs, and their kitchens and customer toilets need resealing to stay clean and hygienic. We can work before opening or after closing so the business isn’t interrupted, and we leave the area clean and ready for customers.
With a station on two lines into London, Otford is popular with renters, and landlords and letting agents are a regular part of our work. We reseal between tenancies and can quote for several properties together.
How it works
- Call or email. Tell us what needs doing, where it is and anything about access. Photos by email help.
- Quote and booking. We quote clearly before anything starts and fix a day that works for you.
- Preparation first. Old sealant out completely, surfaces cleaned, mould treated and the joint left dry.
- Lay the new bead. We apply the right product for each joint and tool it to a clean, even line.
- Leave it to cure. We tell you how long to leave it before use, and the work carries our one-year guarantee.
Sealant services across Otford
- Bathroom & kitchen resealing: Mouldy or split sealant around baths, shower trays, basins and sinks removed completely and replaced with a neat, hygienic bead.
- 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: Commercial washrooms, kitchens and wet areas resealed floor by floor, so only a few rooms are out of use at once.
- Remedial sealant & repairs: Failed, botched or over-sealed joints stripped out, the cause found and the joint resealed properly.
- Fire-rated sealant: Fire-rated sealant for service penetrations and frame gaps where it has been specified, applied to the tested details.
- 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: Floor and skirting joints in homes, shops and warehouses sealed neatly and to the right depth.
- 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: 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.
Why Mr Mastic in Otford
Period homes need care, and we bring plenty of it. Mr Mastic has over 20 years’ experience, is fully insured and ARBOMaster approved, and uses Arbo and Everbuild sealants matched to each surface. We have more than 2,847 projects behind us and a 4.9-star Google rating from 180+ five-star reviews. Every customer gets a clear quote up front, and every job is covered by our one-year guarantee.
Landmarks near Otford
For trains, Otford station is closest to the centre. Local landmarks include Otford Heritage Centre (less than half a mile south-east) and Kemsing Castle Bank (1.7 miles east). Typical jobs near the centre are in homes and businesses around Otford Primary School, Knole Academy, St Michael's Preparatory School and Church of St Bartholomew. Green spaces within reach include Dryhill Nature Reserve.
What customers say
Rated 4.9 on Google from 180+ five-star reviews. Read the reviews on Google.
“1950s terrace on Crossways — bath had black mould coming back constantly. Mr Mastic stripped it all back and did it properly. Bathroom looks brand new.”
“New build in Forge Wood — shower seal had failed after 16 months. Mr Mastic came out quickly, removed everything and did it properly. Perfect finish and no more leaks.”
“Harper Drive in Maidenbower — kitchen worktop had been leaking behind for a while. Came out the next day, sorted it properly. Really tidy job.”
Parts of Otford we work in
Find your area below, or call 07833 053749 or email us with your postcode and a few details.
Also near Otford
Your questions about mastic work in Otford
Do you cover all of Otford?
Yes. We cover the whole village, including the High Street and conservation area, and nearby Kemsing, Shoreham, Dunton Green and Sevenoaks.
My cottage is in the conservation area. Can you reseal the windows?
Yes. We replace failed sealant like for like. If your wider works need consent, check with Sevenoaks District Council first.
My home was affected by flooding. Can you reseal it afterwards?
Yes, once the building has dried out. We remove the old sealant and reseal with clean, dry joints so the new bead bonds properly.
Can you match the colour of my existing sealant?
Yes. We offer a range of colours and can match most bathroom and window finishes.
Can paintable sealant be used instead of silicone?
Yes, where a joint needs to be painted, such as around a painted timber frame. Silicone itself can’t be painted, so we’ll explain which product suits each joint.
Do you work for shops on the High Street?
Yes. Out-of-hours working can be arranged for commercial jobs.
I live in a former shop that’s been converted to a home. Can you reseal the shower?
Yes. Shower rooms in conversions are often compact and fitted onto timber floors, so we use a flexible sanitary silicone that copes with movement.
How long before I can shower after resealing?
Usually around 24 hours. We’ll confirm the cure time before we leave.