Kent · England
Mastic man in Dover
Bathroom resealing, window and door mastic and commercial sealant work in Dover, from valley terraces and post-war streets to the new homes at Whitfield.
- 20+ years’ experience
- ARBOMaster approved applicator
- One-year guarantee
Your local mastic man for Dover
Dover is a town shaped by its port and its cliffs, and its housing is a mix of what survived the war, what replaced it and what is being built now. Mr Mastic is based in Crawley and covers Dover and the villages around it, resealing showers, baths and kitchens, replacing tired mastic around windows and doors, and handling sealant work for businesses.
Leaks often turn up as a stain on the ceiling below a bathroom long before anyone notices a gap in the sealant. If water is getting out of your shower, our article on leaking shower sealant explains the usual causes and when a reseal will cure it.
A town rebuilt after the shelling, and growing again
Dover was on the front line in the Second World War. Long-range shelling and bombing left around 957 houses destroyed and thousands more damaged, and in the years after, large parts of the older town were cleared. The result is a patchwork: older terraces that survived the war, post-war houses built where streets were lost, and flats closer to the centre and seafront.
Older terraces bring their own sealant jobs. Bathrooms fitted into small back rooms often sit on timber floors that flex, and baths that have dropped slightly over the years leave gaps along the wall. Many of these houses now have replacement windows, and the mastic around them has had decades of sun and wind. Our window and door mastic service covers uPVC, timber and aluminium frames.
The biggest change now is at Whitfield, just north of the town, where the Whitfield Urban Expansion is planned for at least 5,750 homes. As those houses settle and their showers see daily use, builder sealant is likely to crack in the first year or two. Resealing early, before water gets under a tray or behind tiles, is far easier than repairing a damp floor or ceiling later.
Cliffs, sea wind and a sheltered valley
The town centre sits in a valley that gives some shelter from the prevailing south-westerly winds, but homes on the higher ground and along the seafront are much more exposed. Wind-driven rain finds any crack in a frame joint, and salt in the air speeds up the drying of external mastic. Outside, we use flexible weatherproof sealants and check sills and the joints under them, not just the frame edges.
Port businesses, hotels and care settings
The Port of Dover and its ferry routes keep a lot of businesses busy, from offices and depots to hotels and food outlets. The St James’ development, opened in 2018, added shops, restaurants, a cinema and a Travelodge to the edge of the town centre. Buckland Hospital, the community hospital that opened in 2015, sits among clinics and care homes where hygienic sealant matters.
Our commercial sealant work covers washrooms, kitchens and shower rooms in all of these settings, and out-of-hours working can be arranged. We also work for Dover landlords and letting agents between tenancies, and can quote for several properties at once if you manage a portfolio across the town.
How a job runs
- 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.
- Cut out and prepare. All the old sealant comes out, and the joints are cleaned, treated and dried.
- 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.
Our services in Dover
- Bathroom & kitchen resealing: Every joint in the bathroom and kitchen, from the bath edge to the worktop, stripped back and resealed with anti-fungal silicone.
- Window & door mastic: Cracked or shrunken mastic around window and door frames, sills and patio doors replaced with a weatherproof sealant.
- 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: Leaks and lifting beads from earlier sealant jobs put right, starting with finding out why they failed.
- Fire-rated sealant: Intumescent and fire-rated joints around pipes, cables and frames, installed to the manufacturer’s tested specification.
- 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: Early-failing sealant in new homes fixed properly, plus mastic packages and snagging for 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: Glazing joints on conservatories, roof lanterns and screens renewed with a sealant suited to glass and frames.
- Gutter, fascia & soffit sealing: Exterior joints at gutters, fascias and soffits resealed to stop drips and staining down the wall.
- Sand mastic for sash & case windows: Traditional sand mastic for period windows and doors where a modern sealant would look out of place.
What you get with Mr Mastic in Dover
Dover asks a lot of sealant, so we take care to get each joint right. Mr Mastic offers over two decades of experience, full insurance, and ARBOMaster approved applicators using Arbo and Everbuild products. We’ve finished more than 2,847 projects and hold a 4.9-star rating on Google from 180+ five-star reviews. You’ll get a clear quote before work begins and a one-year guarantee once it’s complete.
Landmarks near Dover
From the centre, the nearest railway station is Dover Priory station. Well-known places nearby include Crabble Corn Mill (0.7 miles west) and Dover Castle (1.3 miles south-east). Typical jobs near the centre are in homes and businesses around Shatterlocks Infant School, St Edmund's Catholic School, St Edmund's Catholic School and Parish Church of St Andrew Buckland. Green spaces within reach include Dover Western Heights.
What customers say
Rated 4.9 on Google from 180+ five-star reviews. Read the reviews on Google.
“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.”
“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.”
Neighbourhoods we cover in Dover
Find your area below, or call 07833 053749 or email us with your postcode and a few details.
Other towns around Dover
Dover: common questions
Do you cover Whitfield and River as well as central Dover?
Yes. We cover Dover and the villages around it, including Whitfield, River and Temple Ewell.
My bathroom ceiling has a stain below the shower. Is it the sealant?
It often is, though it can also be a grout or pipe problem. We’ll check the seal and tell you honestly whether resealing will fix it.
Why does my seafront window mastic fail so quickly?
Wind, salt and sun dry it out until it cracks. We cut out the old mastic and use a flexible weatherproof sealant set at the right depth.
Can you work in port-area offices or hotels out of hours?
Yes. Out-of-hours working can be arranged for commercial jobs so washrooms and rooms are done when they’re quiet.
My new home at Whitfield has a split bath seal. What should I do?
Check whether it’s still covered by the builder’s snagging period. If not, we can remove the old bead and reseal it properly.
Do you reseal between tenancies for landlords?
Yes. An empty property is the best time, as the sealant can cure fully before the next tenant moves in.
Is the work guaranteed?
Yes, every job comes with our one-year guarantee.