Oxfordshire · England
Remedial sealant & repairs in Farnborough, Oxfordshire
Failed sealant joints in Farnborough need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Caulk or the wrong sealant used in a wet area
- A second bead peeling off the first
- Dark patches showing through the sealant
What happens on the day
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours, depending on how many layers have to come out. Somewhere as small as Farnborough, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- Each layer is cut out and the residue cleaned off.
- Mould is treated and the joint dried.
- We reseal with a product suited to the joint, backed where needed.
- The joint is tooled and you are told about anything else we found.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Keep children and pets away from the work area
- Mention if the joints have been sealed before
Getting a quote
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
Related advice
Remedial sealant in Farnborough
A joint that keeps failing normally has a reason. A tray that moves, a worktop that is not fixed, the wrong sealant or water getting in elsewhere will beat any new bead. We look for the cause before we reseal. Common call-outs are for gaps opening along the back of the worktop and sealant peeling off a dusty or damp surface, on shrunken worktop sealant, expansion joints and failed movement joints.
Homes around Farnborough are mostly houses and cottages rather than flats, some with bathrooms tucked into older rooms or extensions. The work is the same as anywhere: everything old comes out before the new sealant or grout goes in.
There’s a 12-month guarantee on every job, whatever its size.
- Place
- Farnborough (OX12)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Landlord and commercial work in Farnborough
For anyone letting property in or around Farnborough, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and photos by email help.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Questions from Farnborough
Do you cover Farnborough for remedial sealant?
Yes. Our work covers London and the South East, and Farnborough is part of that. You can ring 0345 464 0079 or email us and tell us what needs doing.
What guarantee comes with remedial sealant in Farnborough?
All our work, in Farnborough and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
What do you need from me for a quote?
A short description and the location. We will ask anything else we need to know.
Where is Mr Mastic based?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Can failed expansion joints be resealed?
Yes. Where mortar or filler has been used instead of sealant, it’s removed where it can be, then the joint is sealed properly.
Can old silicone be taken off without scratching the tiles?
Yes. The old bead is cut and lifted with tools that suit the surface, and the residue is cleaned away. Any existing damage is pointed out before we start.
Do you offer different sealant colours?
Most of the time, yes. We’ll explain which colours are available and agree one before work begins.
Different surfaces, different methods
Mouldy bath & shower sealant
Mould can sit behind the silicone, not just in it. We treat the exposed joint once the bead is out.
Movement & expansion joints
A movement joint must be able to stretch. Failed sealant is cut out, backing rod or tape is fitted and the joint resealed.
What affects the cost of remedial sealant
The quote reflects the job in front of us. We look at:
- The number and length of the joints
- When we can work, for business premises
- How easy the joints are to reach
- Whether there’s mould to deal with
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs. Ask us for a quote and we’ll go through it with you.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Any previous sealing or DIY work
- What the problem is, such as mould, gaps, leaks or cracking
- If it’s domestic, commercial or a hotel
- The rough size of the job
Getting a quote is simple: let us know what needs doing and where and its rough size. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
Can I do it myself?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
A careful DIYer can reseal a simple joint, 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.
Honest limits
Before booking, it’s worth knowing the limits too:
- Leaks from a shower valve, waste or pipework (a plumber’s job)
- A tray or worktop that needs refixing first
- A tray or bath that is cracked
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think before booking.
Where we work in Farnborough
- Leaking tray & enclosure joints
- Expansion joints
- Botched or over-sealed joints
- Failed movement joints
- Shrunken worktop sealant
- Mouldy bath & shower sealant
Common problems we fix in Farnborough
How a joint is built matters as much as the product. A bead bonded on three sides, or laid too thick, cannot flex, so it tears when the joint moves. Backing sets the depth and stops that.
Most people get in touch when they notice one of these:
- Caulk or the wrong sealant used in a wet area
- Sealant that came away because the surface wasn’t prepared
- Smears and lumps from a botched reseal
- Dark patches showing through the sealant
For an older house near a landmark such as Church of All Saints, older homes can move a little, which is hard on rigid grout and tired sealant.
Questions to ask before booking
- How the surfaces are prepared before sealing
- Whether they’re fully insured
- Is VAT in the price?
- When the joint can take water or movement
Also near Farnborough
More services for Farnborough
Farnborough homes and their sealant
Most of the South East has hard water, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
In and around Farnborough, as anywhere, good remedial sealant starts with a clean, dry, properly prepared joint.
Farnborough is about 4 miles south-east of Wantage, in Oxfordshire. Wherever you are in the OX12 postcode area, our applicators can take on remedial sealant. Farnborough is one of 443 places in Oxfordshire we cover. There’s also a page for Oxford, roughly 16 miles from Farnborough.
We cover every part of OX12 for remedial sealant. If you’re just outside Farnborough, we cover Catmore (2 miles south-east), Brightwalton (2 miles south), Brightwalton Green (2 miles south), West Ilsley (3 miles east) and Stanmore (3 miles south-east). Further out, we also cover Didcot (8 miles north-east), Abingdon-on-Thames (11 miles north), Wantage (4 miles north-west), Grove (6 miles north-west), Faringdon (12 miles north-west) and Benson (13 miles north-east).
What’s near Farnborough
Well-known places in the area include Atlas Computer Laboratory (3.8 miles north-east). The countryside around Farnborough includes Letcombe Valley and Chain Hill.