Southampton · England

Remedial sealant & repairs in Portswood, Southampton

Problem with your failed sealant joints in Portswood? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.

  • Floor or wall movement joints that have failed
  • Beads that never stuck properly
  • A second bead peeling off the first

Remedial sealant for Portswood homes and businesses

How we quote for remedial sealant

Your quote is based on your job. We take into account:

  • Whether there’s mould to deal with
  • Working hours on commercial sites
  • Which sealant suits the joint
  • Whether old sealant or filler has to be cut out

Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.

Helping us quote

The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:

  • If it’s domestic, commercial or a hotel
  • Where the job is, and your postcode
  • Access, such as stairs, a lift or height
  • Photos by email, if that is easy

We quote each job on its own, so the first step is telling us about yours. Just phone 0345 464 0079 or drop us an email with the details.

Remedial sealant in Portswood, done properly

A movement joint stops working when its sealant splits or sets hard. We cut out the failed sealant and set the depth with backing, before resealing with a flexible product suited to the movement. We work on expansion joints, failed movement joints and botched or over-sealed joints, and common reasons people get in touch are mould trapped under a layer of silicone and worktop sealant that has shrunk and split.

Homes around Portswood range from older cottages to more recent houses. In older homes, walls and floors can move a little more, so the right flexible sealant matters.

All of our work is guaranteed for twelve months.

Fresh white silicone going into the corner where a shower screen meets the tiled wall
Place
Portswood (SO17, SO14, SO18)
Wider area
Southampton
Guarantee
12 months on all our work
Quotes
Quoted before any work starts
Telephone
0345 464 0079
Page updated
26 October 2026

How to look after the new joints

No joint lasts for ever, but care makes a real difference. A few tips:

  • Keep the room well ventilated
  • Find out why the sealant failed first
  • Report a tray that rocks or a worktop that lifts
  • Do not add new sealant on top of old

Watch the joint over the first few weeks, particularly where the original failure was caused by movement. Should anything change, ring 0345 464 0079 or send us an email.

A split movement joint lets rain into walls and floors, and the longer it’s left, the more the joint edges break down. A joint with sound edges is far easier to reseal.

How the job changes by surface

Movement & expansion joints

A sealant stuck to the back of the joint can’t stretch. Backing rod or bond-breaker tape prevents it, letting the sealant flex between the two faces.

Over-sealed & botched joints

Botched joints sometimes have damaged edges from earlier scraping. We work carefully to avoid adding to it, and tell you about any damage we find.

How it works

All our tools and materials come with us in the van, so you do not need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours, depending on how many layers have to come out. For a job in Portswood, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.

  1. We look at how the sealant has failed and check for movement or a leak path.
  2. Every layer of old sealant is cut and cleaned out.
  3. The joint is cleaned, treated for mould and left to dry.
  4. We use the right backing and sealant for any joint that moves.
  5. We tool the joint and tell you about anything else that needs attention.

How to prepare

  • Tell us if parking is tricky
  • Mention any leaks or damp you’ve noticed
  • Where the joints are inside, avoid wetting them before we arrive

Ask for a quote

If you are in Portswood and need remedial sealant, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before we start.

Get a quick quote

Read more

Portswood homes and their sealant

Portswood is close to the coast. Near the coast, holiday lets and guest houses can see bathrooms used by one guest after another, and sealant and grout that work that hard wear out sooner. There are hotels and other places to stay in and around Portswood. As well as homes, we work in hotel bathrooms, where resealing and regrouting can be done room by room.

In the older streets around Highfield Church, older homes can move a little, which is hard on rigid grout and tired sealant. If you let a flat or house near St Denys station, a joint that keeps failing is best fixed properly while the property is empty.

Portswood is about 1 mile north of Southampton, in Southampton. From the centre of Portswood to the outskirts, remedial sealant is available for homes and businesses alike, from flats and houses to offices and hotels. We cover 40 towns and villages across Southampton, from the larger towns to small villages.

Work in SO17, SO14 and SO18 is quoted and booked the same way as anywhere else. If you need remedial sealant at a property on Ivy Road, Alma Road and Lawn Road or anywhere close by, our applicators can take on the job. Being close to the A335 and A3035, Portswood is simple for us to get to for remedial sealant. Neighbouring places we cover for remedial sealant include St Denys (1 mile south-east), Southampton (1 mile south), Inner Avenue (1 mile south-west), Bitterne Manor (1 mile south-east) and Bitterne Park (1 mile east). We also work in nearby towns such as Thornhill (3 miles south-east), Maybush (3 miles west), Eling (4 miles west), Rownhams (3 miles north-west), Millbrook (3 miles west) and Weston (3 miles south).

Landmarks near Portswood

Around Portswood, our work takes us to homes and buildings near St Anne's Catholic School, St Mary's Independent School and South Western Arms, among other places. There’s a railway station in Portswood itself: St Denys station. A little further out are Marlands Shopping Centre (1.5 miles south) and Royal South Hants Hospital (0.9 miles south). Green spaces nearby include Netley Common.

Map of Portswood © OpenStreetMap contributors

Common problems we fix in Portswood

Using the wrong product is a common cause: caulk where it gets wet, rigid sealant where things move, or an acetoxy silicone on a surface it can mark. None of them last.

Any of these means the joints need attention:

  • Thick, messy sealant smeared over tiles
  • Beads that never stuck properly
  • Gaps opening along the back of the worktop
  • A shower that leaks however often it’s resealed

Schools such as St Denys Primary School are buildings too, and its toilets, changing areas and kitchens need their sealant renewed like any other building’s.

Before you book anyone

  • How the colour is chosen
  • How long to leave it before use
  • Are they insured?
  • Whether all the old sealant comes out first

How to choose a mastic man

Leave it or put it right?

Spraying mould remover on a sealed-over joint doesn’t reach what’s underneath. Removal is the only way to get at it. In a smaller place like Portswood, wherever a wall is exposed, a failed outside joint is a real source of damp. 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, along with when we can work on site. Ask us for a quote and we will go through it with you.

Why book with us

  • You choose the colour before work begins
  • Neat joints and a tidy finish
  • Quality sealants from Arbo and Everbuild
  • White, clear, grey or coloured to suit, where the product allows

Read how sealant jobs are priced and what customers say.

Landlords, agents and businesses in Portswood

Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.

If you manage several properties in or around Portswood, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.

Portswood questions

Do you take on hotel work around Portswood?

Yes, hospitality work, including hotels, is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.

I let a flat near St Denys station. Can you help?

Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. You can call 0345 464 0079 or drop us an email with the details for a clear quote.

Can you remove sealant that’s been put over old sealant?

Yes. We remove every layer; over-sealing fails because silicone will not bond to silicone.

Which products do you use?

The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.

What should I tell you?

Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply call 0345 464 0079 or drop us an email.

Can you do several jobs on one visit?

Yes. Tell us about everything you’d like done and we’ll quote it together.

How long will it take to strip and reseal the joint?

Longer than a simple reseal, because every layer has to come out. Most jobs take a few hours.

My shower still leaks after a reseal. Can you sort it?

Yes. All the sealant comes out, we find out why it failed, and the joint is resealed properly.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job