Kent · England
Mastic man in Swanscombe
Bath, shower and window resealing in Swanscombe, from older streets built in the cement era to the new homes going up around Ebbsfleet.
- Anti-fungal silicone as standard
- 20+ years in the trade
- Guaranteed for a year
Resealing and mastic work across Swanscombe
Swanscombe is a small Thames-side town in the Borough of Dartford, about four miles from both Dartford and Gravesend, and it shares a town council with neighbouring Greenhithe. For well over a century its life revolved around cement. James Frost opened a works here in 1825, and the plant later became part of Blue Circle before closing in 1990. Today the old quarries around the town are being filled with new homes. Mr Mastic covers Swanscombe from our base in Crawley.
We reseal bathrooms and kitchens, replace window and door mastic and seal external joints. The method doesn’t change: old sealant cut out, mould treated, a clean dry joint and a new bead chosen for the job. Our guide on leaking shower sealant explains how to spot a seal that’s letting water through.
An old industrial town meets Ebbsfleet’s new streets
Swanscombe’s older housing grew up with its industry, and many homes in the town are long-established houses where bathrooms and kitchens have been refitted more than once. In homes like these, we often find old sealant layered on top of older sealant, baths that have dropped slightly on their frames and worktop joints that have pulled away from the wall. Flexible sanitary silicone, laid on clean surfaces after every old layer has been removed, is the only fix that lasts.
Around the town, the landscape is changing fast. Bluewater occupies a former quarry just to the west, and a neighbouring former quarry is set for more than 6,000 homes as part of the Ebbsfleet Valley scheme, overseen by the Ebbsfleet Development Corporation. New homes like these settle in their first years, and builder sealant around baths, trays and worktops often splits early. If yours has, our new build mastic page explains what we check and how we put it right.
Outside, uPVC windows and doors on homes of every age need their mastic renewing once it has hardened and cracked.
New flats, older houses and the estuary weather
Much of the new housing around Ebbsfleet includes flats, and in a block a leaking shower seal usually shows first as a stain on the ceiling below. We can work with managing agents on access and parking, and if your home is still under a developer’s warranty, it is worth checking whether sealant is covered before you book.
Swanscombe sits close to the Thames estuary, and homes on higher, open ground catch the wind coming up the river. Frames and doors on those exposed faces dry out and crack faster. We cut out the old joints and replace them with weatherproof sealant, using backing rod where the gap is deep, so the new joint can flex with the seasons.
Landlords, shops and the Ebbsfleet growth area
With Bluewater and the Ebbsfleet developments nearby, Swanscombe has a growing rental market, and we reseal for landlords and letting agents between tenancies or when a tenant reports mould. We can quote for several homes at once, and our landlord sealant guide covers what to check at each changeover.
Local shops, schools and community buildings also need washrooms and kitchens kept sound, and out-of-hours working can be arranged.
How it works
- Get in touch. Call or email with the job, your postcode and a few photos if you have them.
- 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.
- Neat new sealant. Each joint gets the sealant that suits it, laid and smoothed to a tidy finish.
- Guaranteed work. You’ll know the cure time before we leave, and every job comes with a one-year guarantee.
What we do in Swanscombe
- 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: Sealant programmes for offices, hotels, care settings and schools, with early or late working where it helps.
- Remedial sealant & repairs: Messy, layered or wrong-product sealant cut out and replaced with the right sealant, laid the right way.
- 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: Brickwork movement joints, render and cladding joints resealed with backing rod and flexible exterior sealant.
- New-build mastic & snagging: New-build bathrooms, kitchens and frames resealed where the original sealant has cracked as the house settles.
- Floor & skirting joints: Movement joints in tiled and concrete floors, and skirting gaps, sealed so they stay tidy and keep dirt out.
- Regrouting: Cracked, stained or crumbling grout raked out and replaced, with corners resealed in silicone.
- Glazing & conservatory sealant: Leaking conservatory and rooflight joints, glass panels and shower screens resealed with silicone made for glass.
- Gutter, fascia & soffit sealing: Gutter unions, outlets and fascia joints that leak in heavy rain cleaned and resealed.
- Sand mastic for sash & case windows: Old sand mastic around sash windows and doors raked out and renewed with traditional burnt sand mastic.
Why choose Mr Mastic in Swanscombe
Swanscombe is an easy run for us from Crawley via the M25 and A2. Bringing over 20 years’ experience, ARBOMaster approved applicator status and full insurance, we use Arbo and Everbuild sealants matched to each joint. Our 2,847+ completed projects and 4.9-star Google rating from more than 180 five-star reviews show the standard you can expect. You’ll get a clear quote first and a one-year guarantee once the work is done.
Around Swanscombe
For trains, Greenhithe for Bluewater station is closest to the centre. Places most people will know nearby are Bluewater (1 mile south-west), Stone Museum of Geology (2.1 miles west) and Stone Castle (0.7 miles south-west). Around the centre, our work takes us to homes, rentals and businesses close to Knockhall Primary School, The Ebbsfleet Academy, Church of St Mary and The Pier Hotel. Nearby green spaces include Chafford Gorges Nature Park and Sawyers Lake.
What customers say
Rated 4.9 on Google from 180+ five-star reviews. Read the reviews on Google.
“Called for a bathroom reseal and the mastic man showed up on time with all the right equipment. Brilliant attention to detail. The sealant looks perfect and they kept everything tidy.”
“We had old mastic that needed replacing throughout our kitchen and bathrooms. The mastic man professional was knowledgeable, quoted fairly, and delivered excellent quality work. Highly recommend!”
“Professional mastic man service from start to finish. They assessed the work properly, gave a clear quote, and executed the job perfectly. Very satisfied with the results.”
Neighbourhoods we cover in Swanscombe
Select your area for more local detail, or call 07833 053749 or email us with your postcode.
Nearby towns we cover
Questions from Swanscombe
Do you cover all of Swanscombe?
Yes. We cover the whole town, neighbouring Greenhithe, the new homes around Ebbsfleet and the area near Bluewater.
My new Ebbsfleet home has cracked shower sealant. Can you help?
Yes. Check your developer’s warranty first; if it isn’t covered, we can cut out the old sealant and reseal with a flexible sanitary silicone.
There are layers of old silicone round my bath. Do you remove them all?
Yes. Every layer comes out before we reseal, as new silicone won’t bond to old.
Can you work in a block of flats with a managing agent?
Yes. We can liaise with the managing agent on access, keys and parking.
Do you work for landlords between tenancies?
Yes. Between lets is ideal, as the sealant can cure without anyone using the bathroom.
My uPVC front door lets in a draught around the frame. Is it the mastic?
Often it is. Once the external mastic hardens and cracks, wind and rain get in around the frame. We cut it out and apply a flexible weatherproof sealant.
Can you reseal a shower tray that moves when I stand in it?
A loose tray needs fixing first, or any new seal will tear again. We’ll check it, and once it’s firm we reseal with a flexible sanitary silicone.
How long before I can use the bath again?
Usually around 24 hours. We’ll confirm the cure time for the product we used before we leave, and give you a few tips on keeping the new joint clean.