West Berkshire · England
Remedial sealant & repairs in Longlane, West Berkshire
Remedial sealant across Longlane and nearby, with old sealant always removed completely.
- Dark patches showing through the sealant
- Sealant applied over old sealant that has lifted
- Caulk or the wrong sealant used in a wet area
Questions from Longlane
Can you do remedial sealant in Longlane?
Yes, Longlane is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear price.
Do you work for landlords with property near Newbury Racecourse station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. You can call 0345 464 0079 or send us an email with the details for a clear quote.
What does remedial sealant cost?
Every job is different, so each one gets its own quote. For a quick quote, ring 0345 464 0079 or drop us an email with a short description of the job.
My shower still leaks after a reseal. Can you sort it?
Yes. There’s normally a reason: sealant over sealant, movement or another leak, so we find that first.
Do you guarantee remedial jobs?
Yes, for 12 months. Where we have flagged another fault, it needs fixing for the joint to last.
Can you do several jobs on one visit?
Yes. Just list everything you need and we will quote it together.
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.
Which products do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Remedial sealant in Longlane, done properly
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 failed movement joints, leaking tray & enclosure joints and mouldy bath & shower sealant, and the jobs we see most are a second bead peeling off the first and torn expansion joints.
Being in a small place like Longlane makes no difference to the job itself: the journey and access are simply agreed in advance. Once we are there, the bathroom or kitchen gets the same care as anywhere else.
All our work comes with a one-year guarantee, wherever you are in West Berkshire.
- Place
- Longlane (RG18)
- Wider area
- West Berkshire
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Check ceilings under showers for marks
- Never seal over old silicone
- Act on a lifting corner right away
- Keep movement joints clear of mortar and paint
Go easy on the new sealant: no scraping, scouring pads or harsh chemicals.
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.
Why act early in Longlane
It’s easy to scratch acrylic, enamel or an uPVC frame cutting out old sealant, and the residue left behind stops the next bead bonding. Careful removal is most of a remedial job. Where a wall is exposed, as many are in small places like Longlane, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
Why choose Mr Mastic in Longlane
- We agree the colour with you first
- Fully insured
- We never seal over old sealant
- Neat joints and a tidy finish
Other services in Longlane
The process
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for most joints, depending on how much old sealant has to come out and we leave things clean and tidy. In a small place like Longlane, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- Old beads and residue are removed down to clean surfaces.
- We treat any mould and dry the joint thoroughly.
- We reseal with a product suited to the joint, backed where needed.
- The joint is tooled and you’re told about anything else we found.
How to prepare
- Mention if the joints have been sealed before
- Mention any leaks or damp you’ve noticed
- Keep pets and children clear of the area while we work
Get a quote
To get a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You will have a clear quote before we start.
Related advice
When it isn’t the sealant
We will always be straight with you, so here’s what sealant can’t fix:
- A cracked shower tray or bath (that needs repair or replacing)
- A bath, tray or worktop that moves until it’s properly fixed
- Older mastics that may need an asbestos check before removal
If in doubt, ring 0345 464 0079 or email us and we will say what we think.
Surfaces we seal
- Mouldy bath & shower sealant
- Leaking tray & enclosure joints
- Expansion joints
- Shrunken worktop sealant
- Failed movement joints
- Botched or over-sealed joints
Landlord and commercial work in Longlane
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.
For anyone letting property in or around Longlane, several properties can be quoted together. Just tell us the addresses and what each one needs.
Longlane homes and their sealant
Most of the South East has hard water, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
For an older house near a landmark such as Holy Trinity, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant. Managing a site like Curridge Primary School? Then we reseal washrooms and kitchens in schools and businesses as well as homes.
Longlane is about 3 miles north of Thatcham, in West Berkshire. Longlane gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Our West Berkshire coverage runs to 155 places, and Longlane is one of them. We also work in Reading, around 13 miles away.
Jobs for remedial sealant in RG18 works the same way as everywhere else we cover. You’ll find streets such as Sandy Close, Long Lane and Curridge Piece. Neighbouring places we cover for remedial sealant include Curridge (1 mile west), Hermitage (1 mile north-east), Wellhouse (1 mile east), Oare (1 mile north) and Little Hungerford (1 mile north-east). Further out, we also cover Newbury (4 miles south-west), Thatcham (3 miles south), Burghfield Common (10 miles east), Speenhamland (3 miles south-west), Hungerford (10 miles west) and Spencers Wood (14 miles east).
What’s near Longlane
Locally, jobs take us to homes and businesses close to The Bunk Inn. The closest station to Longlane is Newbury Racecourse station, roughly 3.3 miles south of the centre. Other landmarks nearby include West Berkshire Community Hospital (2.7 miles south) and British Balloon Museum & Library Ltd (3.4 miles south-west). The countryside around Longlane includes Snelsmore Common.
What we’re called out for in Longlane
Joints that move need sealant that can stretch. Flexing baths, rocking trays and building movement joints will split a rigid or thin bead.
Keep an eye out for any of the following:
- Sealant applied over old sealant that has lifted
- Wide, uneven beads that look worse than the old ones
- Torn expansion joints
- Products that weren’t meant for the joint
Rented homes near Newbury Racecourse station change hands often, and failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Comparing quotes
- The length of the guarantee
- Whether the sealant suits the joint
- How the joint is cleaned and prepared
- What happens if they find a problem under the old sealant
Quotes for remedial sealant in Longlane
Jobs vary more than people expect. What affects the quote:
- Whether the work is at height
- The type of sealant required
- When we can work, for business premises
- Mould in or behind the old joints
Combining jobs into one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
What to tell us for a quote
To make quoting easier, please include:
- What’s wrong with the joints now
- A few pictures by email, if you can
- Any access issues, like height or stairs
- How many joints, rooms or windows are involved
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved.
