Hampshire · England
Mastic man in Bursledon
Resealing and weatherproof mastic for homes in a riverside village on the Hamble, from Old Bursledon to the streets near the station.
- 20+ years’ experience
- ARBOMaster approved applicator
- One-year guarantee
Mastic and sealant work in Bursledon
Bursledon sits on the River Hamble in the borough of Eastleigh, close to Southampton, with Lower Swanwick across the water. It is a village of around 6,000 people with boatyards, a marina and a railway station, and its homes face the damp, breezy conditions that come with life by a tidal river. Mr Mastic covers Bursledon from our base in Crawley, along with Swanwick, Hamble-le-Rice, Netley and Sarisbury Green.
We reseal baths, showers, sinks and kitchen worktops, replace cracked mastic around windows and doors, and seal external joints. Old sealant is always cut out fully and the joint dried before new sealant goes in. Where mould keeps coming back, our anti-mould resealing uses sanitary silicone made to resist it.
A shipbuilding village turned riverside home
Bursledon was a busy shipbuilding place in the eighteenth century, with yards building naval ships until 1807. Old Bursledon, close to the water, still has the Elephant Boatyard, and boat yards line both banks of the Hamble as far upstream as the village. By the 1870s shipbuilding had gone and strawberry growing had taken over, and the village has grown since with housing spreading back from the river.
Brick is a local material here. The brickworks founded in 1897 just across the river at Swanwick made Fareham red brick, so red brick is a familiar sight. Where window frames meet brick, the mastic joint takes all the movement between the two, and after years of sun and rain it hardens and cracks. We cut it out, clean the reveal and fit a flexible weatherproof sealant.
Inside, the jobs are the same as anywhere: bath and shower seals that have split or gone black, kitchen joints that have shrunk, and older refits with several layers of sealant to remove before a new bead can go on.

River damp, wind and older frames
Homes close to the Hamble get more damp air and wind-driven rain than houses further inland. Window and door mastic on river-facing walls stays wet for longer and breaks down sooner, and once a joint opens, rain gets behind the frame and into the reveal. Outside, we use durable weatherproof sealants, set at the right depth with backing rod, and check sills and the joints beneath them as well as frame edges.
Some properties near the river sit on slopes or have narrow lanes and limited parking, so tell us about access when you book. Where a home has timber windows that will be painted, we’ll use a paintable sealant rather than silicone. Our window mastic guide explains the options.
Boatyards, the marina and local businesses
Bursledon’s working waterfront means boatyards, marina buildings and marine businesses, all with washrooms, shower blocks and staff kitchens that take heavy use and damp conditions. Shower blocks in particular need anti-fungal sealant and regular resealing to stay clean and sound. We can work out of hours or in quieter seasons so facilities are not lost when they are needed most.
Pubs, cafés and holiday lets in and around the village also need hygienic joints in kitchens and bathrooms, and we reseal for landlords between bookings or tenancies. A tired, mouldy bead is one of the first things a guest notices, so it is worth renewing before the busy season.
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.
- Strip back the old joint. Every bit of old sealant is removed and the joint is cleaned, treated for mould and dried.
- Lay the new bead. We apply the right product for each joint and tool it to a clean, even line.
- Guaranteed work. You’ll know the cure time before we leave, and every job comes with a one-year guarantee.
Sealant services across Bursledon
- 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: 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: Second opinions on sealant that keeps failing: we strip it out, check for movement or leaks and reseal it properly.
- Fire-rated sealant: Intumescent and fire-rated joints around pipes, cables and frames, installed to the manufacturer’s tested specification.
- External & façade joints: Expansion joints in brick, render and cladding cut out and renewed at the right depth so they can move without splitting.
- New-build mastic & snagging: Early-failing sealant in new homes fixed properly, plus mastic packages and snagging for developers.
- 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: 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: Traditional burnt sand mastic renewed around sash and case windows and doors in stone and brick.
Why Mr Mastic in Bursledon
We cover Bursledon from Crawley, coming along the M27, which crosses the Hamble right beside the village. You can expect an ARBOMaster approved applicator, 20+ years of experience and full insurance, with Arbo and Everbuild sealants picked for damp riverside conditions. We have finished more than 2,847 projects and earned a 4.9-star Google rating from 180+ five-star reviews. You get a clear quote up front and a one-year guarantee once the job is done.
Places we pass in Bursledon
From the centre, the nearest railway station is Bursledon station. Places most people will know nearby are Bursledon Brickworks Industrial Museum (1.1 miles east) and Netley Castle (2.1 miles west). Closer in, we work on homes, rented flats and businesses near Bursledon Church of England Infant School, The Hamble School, Grove Park Business and Enterprise College and St Paul’s Church. Nearby green spaces include Netley Common.
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.”
Areas of Bursledon we cover
Find your area below, or call 07833 053749 or email us with your postcode and a few details.
- Butlocks Heath
- Hamble-le-Rice
- Lower Swanwick
- Lowford
- Old Netley
- Sarisbury
- Sarisbury Green
- Sholing
- Swanwick
- Thornhill
Nearby towns we cover
Questions we’re asked in Bursledon
Do you cover all of Bursledon?
Yes. We cover Old Bursledon, the streets around the station and the rest of the village, plus Swanwick, Hamble-le-Rice, Netley and Sarisbury Green.
Why does the mastic on my river-facing windows fail so fast?
Damp air and wind-driven rain keep the joint wet and stressed. We cut out the old mastic and use a durable weatherproof sealant with backing rod where needed.
Can you reseal a shower block at a boatyard or marina?
Yes. We use anti-fungal sanitary silicone and can work out of hours or in a quieter season.
My timber windows are painted. Can you use silicone?
Silicone can’t be painted. We’ll use a suitable paintable sealant instead and explain the difference.
Do you reseal holiday lets between guests?
Yes. We can fit around your bookings so the sealant cures before the next arrival.
Is parking a problem near the river?
Some lanes are narrow. Let us know about parking and access when you book so we can plan the visit.
How long does a bath reseal take?
Usually a few hours, including removing the old sealant. We’ll tell you how long to leave it before use.
Can you seal the gap where my conservatory meets the house wall?
Often, yes, where the joint can be reached safely. We cut out the old sealant and use a flexible weatherproof product that copes with movement between frame and brick.
