Hampshire · England
Mastic man in Marchwood
Resealing for Marchwood homes on the eastern edge of the New Forest, from bathrooms and kitchens to window frames facing the mouth of the Test.
- Fully insured
- Arbo and Everbuild sealants
- Clear quote before we start
Your local mastic man for Marchwood
Marchwood is a village of a little over 5,500 people on the eastern edge of the New Forest, between Totton to the north and Hythe to the south, looking across the mouth of the River Test towards Southampton. It is a mix of older village streets, post-war family housing and military houses, with the A326 running past and some large industrial neighbours close by. Mr Mastic covers Marchwood from our base in Crawley, and we reseal baths, showers, kitchens and windows throughout the village.
Sealant tends to fail quietly. A thin black line in a shower corner, a gap behind the taps or a bead that has gone hard and shrunk away from a frame can all let damp in long before anything looks dramatic. If you have been wondering why your silicone keeps turning dark, our article why does sealant go mouldy explains what is going on and how to stop it.
Village houses, family estates and military homes
Marchwood was part of Eling parish until it became its own church parish in 1843, the year St John’s Church was built. For much of the early 20th century it was a small place with government magazines and a police barracks, and much of what you see today came later, as housing spread along roads such as Twiggs Lane and Staplewood Drive. That means a lot of the village’s homes are brick-built family houses and bungalows from the second half of the century, many with bathrooms and kitchens on their second or third refit.
The military connection also shows in the housing. Service family homes tend to change occupants regularly, and every change is a good moment to check the bath, shower and worktop joints, which take a lot of wear from short, busy tenancies.
Across all of these, the faults we see are familiar ones: a bath seal that cracks each time the bath is filled, a shower tray edge that has started to let water through to the floor beneath, and uPVC window mastic that has turned brittle after years facing open water and wind. Each needs the old material removed in full, not covered over.

Open estuary views and exposed frames
Homes on the eastern side of Marchwood face the estuary and the docks beyond, and that open aspect means wind-driven rain and salt in the air. Window and door mastic on these elevations breaks down faster than on sheltered streets, and once it cracks, rain finds the gap between frame and brick. We cut it back to clean surfaces, add backing rod where joints are deep, and finish with a weatherproof sealant designed to move with the frame. Our external joint sealing covers frames, door thresholds and the joints between different materials on the outside of a house.
Inside, the work is mostly bungalows and two-storey houses, so access is easy and most jobs are done in a single visit.
Industry, defence and village services
Marchwood is unusual for a village in having major industrial sites on its doorstep, including Marchwood Military Port, the gas-fired power station and the refuse incinerator. Sites like these, and the contractors who work on them, all have washrooms, welfare units and kitchens that need sound sealant. The village infant and junior schools, local shops and pubs, and the many rented homes in the area also need regular resealing.
For commercial clients, we can work outside normal hours and provide clear paperwork for facilities teams. Our commercial sealant page explains the kinds of jobs we take on.
What happens when you book
- Get in touch. Call or email with the job, your postcode and a few photos if you have them.
- Get a clear quote. We give you a clear price before any work starts, and agree a date with you.
- Cut out and prepare. All the old sealant comes out, and the joints are cleaned, treated and dried.
- Seal and finish. The right sealant for each joint is applied and tooled to a neat, even finish.
- Leave it to cure. We tell you how long to leave it before use, and the work carries our one-year guarantee.
Jobs we take on in Marchwood
- 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: Frame perimeters inside and out resealed with flexible, colour-matched sealant, with backing rod where the gap is deep.
- Commercial & hotel sealant: Hotels, offices, washrooms and welfare areas resealed room by room, with out-of-hours working possible to arrange.
- 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: Outside movement joints given new backing rod and a flexible, weatherproof sealant in a colour to match the wall.
- 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: Shower and splashback grout replaced where it has cracked or stained, with silicone in the movement joints.
- Glazing & conservatory sealant: Leaking conservatory and rooflight joints, glass panels and shower screens resealed with silicone made for glass.
- Gutter, fascia & soffit sealing: Leaking gutter joints, end caps, fascia and soffit joints resealed with exterior sealant.
- Sand mastic for sash & case windows: Traditional burnt sand mastic renewed around sash and case windows and doors in stone and brick.
What you get with Mr Mastic in Marchwood
Choosing us for a Marchwood job means getting someone who has spent over two decades doing nothing but sealant work. We are fully insured, ARBOMaster approved, and we work with Arbo and Everbuild sealants because they last. With more than 2,847 projects completed and a 4.9-star rating on Google from over 180 five-star reviews, we let the record speak for itself. Expect a clear quote first and a one-year guarantee on everything we finish.
Getting around Marchwood
The nearest station to the town centre is Millbrook (Hants) station. Well-known places nearby include Westquay (2.1 miles east), Foresters Museum & Archive (1.9 miles north-east) and Netley Castle (4.1 miles east). Closer in, we work on homes, rented flats and businesses near Marchwood Junior School, Hounsdown School, Church of St John the Apostle and White Horse pub. Nearby green spaces include Testwood Lakes.
What customers say
Rated 4.9 on Google from 180+ five-star reviews. Read the reviews on Google.
“Harper Drive in Maidenbower — kitchen worktop had been leaking behind for a while. Came out the next day, sorted it properly. Really tidy job.”
“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!”
Parts of Marchwood we work in
Pick your area for local details, or call 07833 053749 or email us with your postcode.
Other towns around Marchwood
Questions from Marchwood
Do you cover all of Marchwood?
Yes. We cover the whole village and nearby Totton, Eling, Hythe, Dibden Purlieu and Holbury on the Waterside.
Our window mastic facing the estuary keeps cracking. What can you do?
We cut out the failed sealant, clean the frame and brick, and apply a flexible weatherproof sealant that copes better with wind and salt air.
We are a service family moving out. Can you reseal before we hand back the house?
Yes. We can reseal the bath, shower and kitchen so the house is in good order for the handover.
Do you work on industrial or defence sites?
We can quote for washrooms, welfare units and kitchens on commercial sites, subject to the site’s own access rules.
My shower tray is leaking onto the floor. Is resealing enough?
If the tray is sound and the leak is at the edge, resealing usually solves it. If the tray has cracked, it will need replacing first.
How long does a kitchen worktop reseal take?
Most worktop joints take an hour or two, including removing the old sealant and cleaning the joint.
