Hampshire · England
Remedial sealant & repairs in Farringdon, Hampshire
Our applicators work in Farringdon on removing failed, mouldy or leaking sealant and putting it right. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Dark patches showing through the sealant
- Sealant peeling off a dusty or damp surface
- Torn expansion joints
The process
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a few hours, depending on how many layers have to come out. Somewhere like Farringdon needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- We give you the cure time and explain what caused the failure.
Preparing for the visit
- Tell us if parking is tricky
- Keep pets and children clear of the area while we work
- Clear the area around the work
How to get a quote
Every job is quoted individually. Simply call 0345 464 0079 or email us and describe the job, and pictures are welcome.
Related advice
About our remedial sealant in Farringdon
Movement and expansion joints fail when the sealant can’t stretch. The old sealant comes out and backing goes in to control the depth, then a flexible sealant matched to the movement goes in. If you’re dealing with leaks that keep coming back after resealing and smears and lumps from a botched reseal, we can help, on mouldy bath & shower sealant, leaking tray & enclosure joints and botched or over-sealed joints alike.
In a village or hamlet like Farringdon, homes are often older cottages and farmhouses alongside a few newer houses. Older walls and timber floors can move a little, and cracked grout and split sealant are often the first signs.
There’s a 12-month guarantee on every job, large or small.
- Place
- Farringdon (GU34)
- Region
- Hampshire
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026

Looking after it afterwards
A little care helps the new joints last. We recommend:
- Keep movement joints clear of mortar and paint
- Keep an eye on the ceiling below the bathroom
- Never seal over old silicone
- Find out why the sealant failed first
If we’ve found a cause, such as a loose tray or a leaking waste, get it fixed, or the new joint may fail again.
A failing joint rarely gets better on its own. Each use pushes more water behind the bead, into floors, walls or ceilings. Sorting it early limits the damage.
Nearby places to Farringdon
Also in Farringdon
How we quote for remedial sealant
For a quick quote, just ask. The main things that affect it are:
- The size of the job
- How many areas need sealing
- The old material and how stubborn it is
- Mould in or behind the old joints
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
When you contact us, it’s useful to know:
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that is easy
- If someone has resealed it before
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Can I do it myself?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Farringdon homes and their sealant
Most of the South East has hard water, which leaves limescale on sealant, grout and fittings.
Rented homes near Alton station change hands often, and a joint that keeps failing is best fixed properly while the property is empty.
Farringdon is about 3 miles south of Alton, in Hampshire. Wherever you are in the GU34 postcode area, we cover remedial sealant for homes and businesses. Farringdon is one of 683 towns and villages in Hampshire we cover. For nearby work, see our Portsmouth page (21 miles or so).
All of GU34 is covered for remedial sealant, from the main roads to the quietest streets. Local streets include Hall Lane, Crows Lane and Gaston Lane, and we cover them all. Close by, we work in Upper Farringdon (1 mile north-east), Lower Farringdon (1 mile west), Chawton (2 miles north), Hartley Mauditt (2 miles east) and Alton (3 miles north). Larger places within reach include Basingstoke (12 miles north-west), Winchester (15 miles west), Fleet (13 miles north-east), Horndean (14 miles south), Aldershot (14 miles north-east) and Petersfield (8 miles south).
Near you in Farringdon
In Farringdon, that means homes and buildings near Rose and Crown Inn, among other places. Farringdon’s nearest station is Alton station, about 3 miles north of the centre. Other landmarks nearby include The Romany Museum (2.3 miles south-east) and Alton Community Hospital (2 miles north). The countryside around Farringdon includes Selborne Hill.
Signs you need remedial sealant in Farringdon
All sealant wears out eventually. Mould grows into the silicone, the surface hardens and the bead shrinks. Then the only fix is removal and a new bead.
The problems people normally mention when they call include:
- Kitchen joints letting water behind the worktop
- Wide, uneven beads that look worse than the old ones
- Leaks that keep coming back after resealing
- Movement joints that have split or pulled away
If you live in an older home near Church of All Saints, older homes can move a little, which is hard on rigid grout and tired sealant.
What your quote should include
- How the surfaces are prepared before sealing
- Whether VAT is included
- Are they insured?
- Whether the sealant suits the joint
Common questions in Farringdon
I let a flat near Alton station. Can you help?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Is Farringdon in your area for remedial sealant?
Yes, Farringdon is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator.
How do I get a quote for remedial sealant in Farringdon?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.
Do you have insurance?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Can failed expansion joints be resealed?
Yes. Backing sets the depth and stops the sealant sticking to the back, which lets it stretch.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
Can you do several jobs on one visit?
Yes, we can. More than one area can go on one quote.
Different surfaces, different methods
Leaking trays & enclosures
A cracked tray, failed valve or leaking waste needs a different fix. We say so rather than reseal.
Movement & expansion joints
Bonding on three sides is a common reason movement joints tear. Backing rod or bond-breaker tape prevents it, so the sealant grips the two sides only.
