Hampshire · England
Blackfield Remedial Sealant
Problem with your failed sealant joints in Blackfield? We remove the old material, prepare the joints and seal them properly.
- Black mould underneath the bead
- Smears and lumps from a botched reseal
- A second bead peeling off the first
Why act early in Blackfield
A joint that has failed twice will fail again unless the cause is dealt with. Finding it, whether movement, water from elsewhere or an unsuitable product, ends the cycle. In a smaller place like Blackfield, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
Leaving a failed joint normally makes the job bigger, not smaller. If you are unsure, ring 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why Blackfield customers choose us
- Fully insured
- Old sealant always removed completely
- 12-month guarantee on every job
- Domestic, commercial and hotel work
Take a look at our cost guide and what customers say.
Remedial sealant in Blackfield
If a joint fails again and again, something is causing it. Movement, the wrong product or a leak from somewhere else will defeat even a perfect bead. Finding that cause comes before any new sealant. We work on botched or over-sealed joints, shrunken worktop sealant and failed movement joints, and common reasons people get in touch are sealant applied over old sealant that has lifted and smears and lumps from a botched reseal.
Smaller places like Blackfield still have plenty of bathrooms that work hard every day. Older or newer, every room gets the same approach: old sealant or grout cut out, joints cleaned and dried, and a fresh finish laid.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Place
- Blackfield (SO45)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Common problems we fix in Blackfield
All sealant wears out eventually. Over the years it shrinks, hardens and gets colonised by mould, faster where ventilation is poor. Then the only fix is removal and a new bead.
It’s worth asking for a quote if you see:
- Sealant that came away because the surface wasn’t prepared
- A second bead peeling off the first
- Torn expansion joints
- Dark patches showing through the sealant
Letting a property close to Hamble station? Then failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
What to look for in a quote
- How long to leave it before use
- Which colour the sealant will be
- Whether they’re fully insured
- Whether the sealant suits the joint
Honest limits
In fairness, there are a few things sealant will not fix:
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
- Movement from fittings that aren’t supported
- Failed tanking or loose tiles behind the sealant
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
Surfaces we seal
- Expansion joints
- Botched or over-sealed joints
- Failed movement joints
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
Blackfield questions
Do you cover smaller places like Blackfield?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work in hotels near Blackfield?
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.
Do you take out the old sealant first?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Can you remove sealant that’s been put over old sealant?
Yes. Each layer is cut out and the residue cleaned off, then the joint is resealed once.
Can failed expansion joints be resealed?
Yes. Where mortar or filler has been used instead of sealant, it’s removed where it can be, and reseal with a flexible product.
What sealant 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.
Is there any odour?
Some sealants have a smell while they cure. Ventilation helps.
What we do, step by step
The work is kept neat and contained to the area we are working on, so you can get on with your day. Expect the work to take a few hours, depending on how many layers have to come out, and we explain the cure time before we leave. A visit to Blackfield is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We look at how the sealant has failed and check for movement or a leak path.
- Every layer of old sealant is cut and cleaned out.
- We clean the joint, treat any mould and let it dry.
- Moving joints get backing and a flexible sealant to suit.
- The new joint is tooled neatly and we explain anything else we found.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Let us know about stairs, lifts or work at height
- Clear items away from the joints we are working on
Getting a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
Related advice
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Check trays and worktops do not move
- Find out why the sealant failed first
- Never fill a movement joint with mortar or grout
- Keep bleach and abrasives off the bead
If we have found a cause, such as a loose tray or a leaking waste, get it fixed, because the new sealant can’t hold back a problem underneath.
If a joint has failed more than once, stop resealing it. Get the cause found first, otherwise the next attempt will fail too.
What affects the cost of remedial sealant
Your quote is based on your job. We look at:
- Any working-time requirements on site
- The number and length of the joints
- Which sealant suits the joint
- Any mould that needs treating
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Any access issues, like height or stairs
- Photos by email, if that’s easy
- If it’s domestic, commercial or a hotel
- Where the job is, and your postcode
Asking for a quote is easy: tell us what needs doing and where. Photos by email help us understand the job.
Can I do it myself?
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
What remedial sealant looks like in Blackfield
Blackfield is within about 2 miles of 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. Most of the South East has hard water, so limescale builds up on sealant, grout and fittings.
Schools such as Blackfield Primary School are buildings too, and we reseal washrooms and kitchens in schools and businesses as well as homes. Homes close to St Francis include some older properties, and bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Blackfield is about 3 miles south-east of Hythe, in Hampshire. Homes, rented property, offices and hotels in Blackfield is covered for remedial sealant, old or new, large or small. The work is guaranteed for a year. Our Hampshire coverage runs to 683 places, Blackfield among them. Southampton is on our list too, about 7 miles from Blackfield.
All of SO45 is within our area for remedial sealant, from the main roads to the quietest streets. Streets in the area include Newlands Copse, St Michaels Close and Dark Lane. Neighbouring places we cover for remedial sealant include Langley (1 mile south), Roughdown (1 mile west), Holbury (1 mile north-west), Fawley (1 mile north-east) and Stonehills (1 mile north-east). Within a short drive, we also cover Gosport (9 miles east), Eastleigh (10 miles north), Fareham (8 miles east), Totton (9 miles north-west), Chandler's Ford (12 miles north) and Hedge End (7 miles north-east).
Around Blackfield
In Blackfield, that means homes and buildings near The New Forest Academy and Church of All Saints. The nearest railway station is Hamble station, roughly 4.1 miles north-east. A little further out are Beaulieu Abbey And Display Of Monastic Life (3.8 miles west) and Coldeast (5.2 miles north-east). For a walk, there’s Mercury Marshes.