Medway · England
Remedial sealant & repairs in Hoo St Werburgh, Medway
Failed sealant joints in Hoo St Werburgh need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Torn expansion joints
- Dark patches showing through the sealant
- Repeat leaks from the same joint
Remedial sealant for homes and businesses in Hoo St Werburgh
Two decades of sealant work means we recognise most failures quickly. We’re fully insured ARBOMaster approved applicators, and remedial work carries our one-year guarantee. We work on expansion joints, shrunken worktop sealant and mouldy bath & shower sealant, and people most often call us about dark patches showing through the sealant and caulk or the wrong sealant used in a wet area.
Smaller places like Hoo St Werburgh 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.
You’re covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or email us.
- Place
- Hoo St Werburgh (ME3)
- Region
- Medway
- Guarantee
- A year, on every job
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
When it isn’t the sealant
A few problems are outside what sealant work can do:
- 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
- Leaks from a shower valve, waste or pipework (a plumber’s job)
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer.
Surfaces we seal
- Mouldy bath & shower sealant
- Leaking tray & enclosure joints
- Botched or over-sealed joints
- Failed movement joints
- Expansion joints
- Shrunken worktop sealant
Why it’s worth doing now in Hoo St Werburgh
Stripping out botched sealant adds time to a reseal, but rarely a lot: it takes a few hours, depending on how many layers have to come out. It’s far less disruption than resealing the same joint again and again. Homes in smaller places like Hoo St Werburgh can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, phone 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Hoo St Werburgh
- Domestic, commercial and hotel work
- 180+ five-star Google reviews
- Approved under the ARBOMaster scheme
- Trusted Arbo and Everbuild sealants
See our cost guide or our reviews.
How we quote for remedial sealant
Jobs vary more than people expect. The main factors:
- Whether the work is at height
- How many areas need sealing
- Working hours on commercial sites
- Any mould that needs treating
Doing several joints on one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Access, such as stairs, a lift or height
- The address or postcode of the job
- The type of property
- Photos by email, if that is easy
To get a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.
How the job changes by surface
Movement & expansion joints
A sealant stuck to the back of the joint cannot stretch. Backing stops that, letting the sealant flex between the two faces.
Leaking trays & enclosures
When failed joints are the cause, they’re all cut out and renewed, tray edges and screen profiles included.
What we do, step by step
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes a few hours, depending on how many layers have to come out from start to finish. A visit to Hoo St Werburgh 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.
- We strip the joint completely, removing any layers below.
- Next, any mould is treated and the joint dried.
- Where the joint moves, backing and a flexible sealant suited to the movement go in.
- Finally we finish the joint and talk you through what we found.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Try not to wet indoor joints just before the visit
- For business premises, tell us about site rules or sign-in
How to get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved and send you a clear quote.
Read more
Bathrooms and kitchens in Hoo St Werburgh
Hoo St Werburgh is close to the coast. Coastal homes, holiday lets and guest houses can see heavy bathroom use in busy months, and sealant and grout that work that hard wear out sooner. Hard water is the norm across most of the South East, which leaves limescale on sealant, grout and fittings.
If you look after a building such as Hoo St Werburgh Primary School and Marlborough Centre, washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes. Letting a property close to Gillingham (Kent) station? Then failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Hoo St Werburgh is about 4 miles north-east of Rochester, in Medway. Homes, rented property, offices and hotels in Hoo St Werburgh is covered for remedial sealant, old or new, large or small. Every job comes with our one-year guarantee. Our area takes in 68 places across Medway, from the larger towns to small villages. We also work in Chelmsford, around 22 miles away.
Here we cover the ME3 postcode area for remedial sealant. That includes homes and businesses on Walters Road, St Johns Road and Bell's Lane. Other places close to Hoo St Werburgh include Chattenden (1 mile west), Sharnal Street (1 mile north-east), Lower Upnor (2 miles south-west), Kingsnorth (2 miles east) and Tunbridge Hill (2 miles north-east). Larger places within reach include Gillingham (4 miles south), Chatham (5 miles south), Rochester (4 miles south-west), Rainham (5 miles south-east), Strood (4 miles south-west) and Luton (4 miles south). Hoo St Werburgh is among the bigger towns we cover in Medway.
Local landmarks in Hoo St Werburgh
We work in homes and buildings around The Hundred of Hoo Academy and The Chequer's Public House and the streets around them. For rail, the closest station is Gillingham (Kent) station, about 2.7 miles south. Well-known places in the area include Upnor Castle (1.9 miles south-west) and Huguenot Museum (3.5 miles south-west). The countryside around Hoo St Werburgh includes Bishop Saltings and Gad's Hill.
Towns and villages near Hoo St Werburgh
Other services in Hoo St Werburgh
Common questions in Hoo St Werburgh
Is Hoo St Werburgh within the area you cover?
Yes. Hoo St Werburgh is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
I let a flat near Gillingham (Kent) station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Do you offer different sealant colours?
Most of the time, yes. We will tell you which colours the right product comes in and agree one before work begins.
How much does remedial sealant cost in Hoo St Werburgh?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Someone sealed over the old bead. Can you fix it?
Yes. We remove every layer; over-sealing fails because silicone will not bond to silicone.
Can you remove old sealant without damaging the bath?
Yes. We take our time over removal, particularly on softer surfaces like acrylic.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used.
Do the sealants smell?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Do you need remedial sealant in Hoo St Werburgh?
One of the commonest remedial jobs is sealant on top of sealant. New silicone can’t stick to the old bead, so the top layer lifts and water and mould collect between the two.
These are the problems we are asked about most:
- Mould trapped under a layer of silicone
- Wide, uneven beads that look worse than the old ones
- Movement joints that have split or pulled away
- Repeat leaks from the same joint
For an older house near a landmark such as Church of St Werburgh, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Questions to ask before you book
- What preparation is included
- How the colour is chosen
- What guarantee comes with the work
- What happens if the job turns out different