Portsmouth · England
Remedial sealant & repairs in Milton, Portsmouth
Removing failed, mouldy or leaking sealant and putting it right for householders, landlords and businesses in Milton. Fully insured, ARBOMaster approved and guaranteed for a year.
- Caulk or the wrong sealant used in a wet area
- Leaks that keep coming back after resealing
- A second bead peeling off the first
What we’re called out for in Milton
Movement tears sealant that isn’t designed for it. A bath that flexes, a tray that rocks or a building joint that opens and closes will split a rigid or thin bead.
People generally contact us when they notice one of these:
- Mould trapped under a layer of silicone
- Gaps opening along the back of the worktop
- A second bead peeling off the first
- Thick, messy sealant smeared over tiles
Managing a site like Meon Junior School? Then we reseal washrooms and kitchens in schools and businesses as well as homes.
Comparing quotes
- What insurance they hold
- Which colour the sealant will be
- How the surfaces are prepared before sealing
- What the cure time is
Remedial sealant in Milton
If a joint has been resealed and is leaking again, it’s worth a proper look. It helps to have photos when you phone 0345 464 0079 or drop us an email, and say how long ago it was last done. If you’re dealing with wide, uneven beads that look worse than the old ones and sealant that came away because the surface wasn’t prepared, we can put it right, whatever the surface.
Around Milton, you’ll mostly find houses and bungalows, from older cottages to newer builds. Sealant and grout wear out here just as they do in a big town.
We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.
- Where
- Milton (PO4, PO3, PO1)
- Wider area
- Portsmouth
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Leave it or put it right?
Another bead over the top will not fix a failed joint. It does not grip the old layer, so the leak carries on and there’s now more to remove. Homes in smaller places like Milton can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.
Why choose Mr Mastic in Milton
- 20+ years of sealant experience
- Experience in homes, commercial sites and hotels
- Anti-fungal silicone where joints get wet
- ARBOMaster approved applicator
Take a look at how sealant jobs are priced or customer reviews.
Milton homes and their sealant
Milton is within about 1 mile of the coast. Near the coast, holiday lets and guest houses can see bathrooms used by one guest after another, which wears sealant and grout out faster than in a quiet home. Most of the South East has hard water, which leaves limescale on sealant, grout and fittings.
Letting a property close to Fratton station? Then botched sealant from a previous quick fix is easier to strip out between tenants. In the older streets around Church of St James, older homes can move a little, which is hard on rigid grout and tired sealant.
Milton is about 1 mile south-east of Portsmouth, in Portsmouth. Milton gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Across Portsmouth, we cover 19 places, and Milton is one of them.
Here we cover the PO4, PO3 and PO1 postcode area for remedial sealant. Remedial sealant is available to properties on Liss Road, Meon Road and Aston Road and the roads around them. Close by, we work in Kingston (1 mile north-west), Fratton (1 mile north-west), Southsea (1 mile south-west), Baffins (1 mile north) and Copnor (1 mile north). Larger places within reach include Wymering (4 miles north), Paulsgrove (4 miles north), Cosham (3 miles north), Drayton (4 miles north) and Farlington (4 miles north).
Local landmarks in Milton
Around Milton, our work takes us to homes and buildings near The Milton Arms, Mary Rose School and St Edmund's Catholic School, among other places. The nearest railway station is Fratton station, about 0.6 miles west. Other landmarks nearby include Eastney Beam Engine House (0.7 miles south-east) and St. Mary's Hospital (less than half a mile north-west). The countryside around Milton includes Portsdown Hill and Milton Locks.
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
What the job involves on each surface
Windows & doors
Wrong-coloured or messy mastic can be replaced for appearance too, in a colour that suits the frame.
Worktops & kitchens
Old kitchen sealant pulls back from the wall over time. It’s cut out, degreased and resealed colour-matched to the worktop.
More services for Milton
What affects the quote in Milton
Every job gets its own quote. This is what makes a difference:
- Any working-time requirements on site
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
- How many areas need sealing
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Any access issues, like height or stairs
- Whether it’s a home or a business
- Roughly how big the job is
- What’s wrong with the joints now
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
How it works
There’s no need to move everything out, just the space around the work. We protect the rest, and the job takes a few hours for most joints, depending on how much old sealant has to come out in most cases. Parking around Milton is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- First we find out how and where the joint has failed.
- All the old sealant comes out, including any layers underneath.
- The joint is cleaned, treated for mould and left to dry.
- We use the right backing and sealant for any joint that moves.
- Finally we finish the joint and talk you through what we found.
Before we arrive
- Try not to wet indoor joints just before the visit
- On commercial sites, let us know about site rules
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
To get a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You will have a clear quote before any work starts.
Advice
Questions from Milton
Do you cover smaller places like Milton?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work in hotels near Milton?
Yes. Hotel and guest-house work is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.
How long does remedial resealing take?
A little longer than a standard reseal. Most jobs take a few hours.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will explain our choice.
What do you need from me for a quote?
A short description and the location, plus pictures if you have them. If we need more, we will ask.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Milton and the rest of Portsmouth.
Can old silicone be taken off without scratching the tiles?
Yes. Residue is removed with a product suited to the surface rather than scraped hard.
Can you remove sealant that’s been put over old sealant?
Yes. We cut out all the layers and clean off the film, before resealing with a single bead.
Aftercare tips
To keep the joints looking good and working properly:
- Find out why the sealant failed first
- Clean sealant with mild products only
- Have loose fittings fixed before resealing
- Check ceilings under showers for marks
Leave the new joint to cure fully before it gets wet or moves: follow the cure time we give you.
Signs to act on: sealant lifting at the ends, a second bead visible on top of the first, black mould under the silicone, or stains below a bathroom. Each one is worth getting looked at.