Hampshire · England
Portchester Remedial Sealant
Removing failed, mouldy or leaking sealant and putting it right for Portchester, backed by a 12-month guarantee. Ask us for a quote.
- Sealant applied over old sealant that has lifted
- Worktop sealant that has shrunk and split
- Repeat leaks from the same joint
FAQs for Portchester
I let a flat near Portchester station. Can you help?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Is Portchester in your area for remedial sealant?
Yes. We work across London and the South East, and Portchester is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
How long does the work take?
The number of joints and layers decides it. We’ll tell you before work begins.
Can I add another job to the visit?
Of course. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We’ll give you the cure time for the product we used before we leave.
Can you take off two layers of silicone?
Yes. We cut out all the layers and clean off the film, then the joint is resealed once.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses and we’re fully insured.
Remedial sealant for homes and businesses in Portchester
Remedial jobs in Portchester generally fall into a few patterns: sealant over sealant, mould under the bead, leaks that come back and movement joints that have split. We strip each one back and start from scratch. Typical jobs include repeat leaks from the same joint and wide, uneven beads that look worse than the old ones, across shrunken worktop sealant, failed movement joints and mouldy bath & shower sealant.
In a smaller place like Portchester, homes are mostly houses and bungalows rather than flats, some older and some much newer. Bathrooms and kitchens here get the same daily wear as anywhere, and the sealant and grout show it first.
All our work is covered by our one-year guarantee.
- Location
- Portchester (PO16, PO6, PO17)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the cost of remedial sealant
The quote reflects the job in front of us. We take into account:
- How many areas need sealing
- When we can work, for business premises
- The number and length of the joints
- Whether there’s mould to deal with
Doing several joints on one visit is generally more efficient than separate visits. We’ll give you a clear quote for the lot.
Asking for a quote
Before you ask for a quote, have a think about:
- Any access issues, like height or stairs
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
- Pictures of the joints, sent by email
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will explain what’s involved.
Nearby places to Portchester
More services for Portchester
Aftercare tips
So the new joints stay in good condition:
- Always have old sealant cut out, not covered
- Ask why a joint failed before redoing it
- Use a soft cloth, not a scourer, on silicone
- Don’t point over movement joints
If the joint ever needs renewing, have it cut out, not sealed over. Over-sealing is how many remedial jobs start, so the old bead should always come out first.
Warning signs: peeling layers, mould showing through the bead, leaks after showering or cracks in a movement joint. Any of them means it’s time for remedial work.
Do you need remedial sealant in Portchester?
Products get mixed up: acrylic caulk in a wet area, a general-purpose sealant on a moving joint, or an acetoxy silicone on natural stone or some metals. Each fails in its own way.
If you can see any of these, it’s time to have the joints looked at:
- Leaks that keep coming back after resealing
- Movement joints that have split or pulled away
- A second bead peeling off the first
- Kitchen joints letting water behind the worktop
Schools such as Castle Primary School are buildings too, and we reseal washrooms and kitchens in schools and businesses as well as homes.
Questions to ask before booking
- Who turns up on the day
- What happens if they find a problem under the old sealant
- Whether all the old sealant comes out first
- When the joint can take water or movement
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
What the job involves on each surface
Worktops & kitchens
Kitchen joints often have grease and cleaning residue deep in them, so we spend extra time cleaning before resealing.
Over-sealed & botched joints
A botched joint can hide two or three layers of sealant, including the smears and film on surrounding tiles. New sealant needs a fully clean surface.
Portchester homes and their sealant
Portchester is close to the coast. Coastal homes, holiday lets and guest houses can see heavy bathroom use in busy months, and sealant and grout that work that hard wear out sooner. Hard water is the norm across most of the South East, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
If you let a flat or house near Portchester station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. Homes close to Church of St Mary include some older properties, and bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Portchester is about 3 miles north-east of Gosport, in Hampshire. Homes, rented property, offices and hotels in Portchester can book us for remedial sealant, old or new, large or small. Every job comes with our 12-month guarantee. Across Hampshire, we cover 683 places, Portchester among them.
We cover every part of the PO16, PO6 and PO17 postcode area for remedial sealant and the streets around it. You’ll find streets such as Cow Lane, Hill Road and Ralph Road, and we cover them all. Close by, we work in Boarhunt (2 miles north-west), Southwick (2 miles north), Elson (2 miles south-west), Wallington (2 miles west) and Priddy's Hard (2 miles south). Further out, we also cover Gosport (3 miles south-west), Havant (6 miles east), Eastleigh (13 miles north-west), Fareham (3 miles west), Horndean (7 miles north-east) and Chandler's Ford (15 miles north-west).
Local landmarks in Portchester
Locally, jobs take us to homes and businesses close to Portchester Community School and The Cormorant pub, among other places. For rail, the closest station is Portchester station, about 0.5 miles north-west. A little further out are Portchester Castle (under half a mile south-east) and Queen Alexandra Hospital (2.3 miles east). Green spaces nearby include West of the River Alver and Portsdown Hill.
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What happens on the day
On the day, we look over the joints with you first. We protect the surfaces around the joints before any work starts. Most jobs take a few hours for most joints, depending on how much old sealant has to come out. A visit to Portchester is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We protect the surfaces around the joint.
- The botched or failed sealant is cut away completely.
- We clean and degrease the joint and look for signs of movement or water.
- New sealant goes in once the joint is dry, and is tooled smooth.
- You get the cure time and our view on why the joint failed.
Before we arrive
- Tell us if parking is tricky
- Move anything stored near the joints
- Tell us about any water getting in
How to get a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or email us.