Thurrock · England
Chadwell St Mary Remedial Sealant
Problem with your failed sealant joints in Chadwell St Mary? We cut out the old, prepare the joints and apply the right sealant.
- Black mould underneath the bead
- Beads that never stuck properly
- Sealant applied over old sealant that has lifted
What happens if it’s left?
It’s easy to scratch acrylic, enamel or an uPVC frame cutting out old sealant, and any film left behind stops new sealant sticking. Careful stripping is where most of our time goes. Around Chadwell St Mary, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we’ll go through it with you.
Why choose Mr Mastic in Chadwell St Mary
- An ARBOMaster approved applicator
- Anti-fungal sanitary silicone in wet areas
- Homes, businesses and hotels
- Full insurance on every job
Take a look at what affects the cost or customer reviews.
About our remedial sealant in Chadwell St Mary
Getting old sealant out properly is slow, careful work. Every layer is cut out, the residue cleaned off and the joint degreased, taking care not to scratch the surfaces around it. New sealant only bonds to a clean, dry joint. If you are dealing with black mould underneath the bead and smears and lumps from a botched reseal, we can help.
Homes around Chadwell St Mary range from older cottages to more recent houses. Older homes can move a little with the seasons, which is hard on tired sealant and rigid grout.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or send us an email.
- Place
- Chadwell St Mary (RM16)
- Wider area
- Thurrock
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Can I do it myself?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you do try it yourself, take your time over the 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.
Places near Chadwell St Mary
What else we do in Chadwell St Mary
Do you need remedial sealant in Chadwell St Mary?
A lot of failed joints have been sealed over rather than replaced. Silicone doesn’t bond to silicone, so the top layer lifts and water and mould collect between the two.
These are the problems we are asked about most:
- Worktop sealant that has shrunk and split
- A second bead peeling off the first
- A shower that leaks however often it’s resealed
- Decorators’ caulk around a bath or shower
Homes close to Emmanuel Church include some older properties, and timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Before booking anyone
- Whether they’re fully insured
- How long the guarantee is
- What the cure time is
- What happens if they find a problem under the old sealant
How we quote for remedial sealant
We don’t publish a price list, because no two jobs are the same. What we look at:
- Whether the work is at height
- Working hours on commercial sites
- Whether there’s mould to deal with
- The number of rooms or windows
The cost reflects the work involved, not guesswork. That’s why we ask about the job first and agree the price before starting.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- A few pictures by email, if you can
- If it’s domestic, commercial or a hotel
- The problem you’ve noticed
- Whether it has been sealed before
Every job is quoted individually, so start by telling us what you need. Simply ring 0345 464 0079 or drop us an email and describe the job and send pictures if you have them.
What we do, step by step
At the end, we look at the finished work together. The visit itself generally takes a few hours for most joints, depending on how much old sealant has to come out, depending on the size of the job. In a smaller place like Chadwell St Mary, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We protect the surfaces around the joint.
- Every layer of failed sealant is stripped out.
- The joint is degreased and checked for movement and leaks.
- Once dry, a suitable sealant is applied and tooled.
- You get the cure time and our view on why the joint failed.
How to prepare
- Keep children and pets away from the work area
- Try not to wet indoor joints just before the visit
- Mention if the joints have been sealed before
Get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
Related advice
Bathrooms and kitchens in Chadwell St Mary
Chadwell St Mary is within about 3 miles of the coast. Near the coast, holiday lets and guest houses can see bathrooms used by one guest after another, which wears sealant and grout out faster than in a quiet home. Hard water is the norm across most of the South East, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
If you let a flat or house near East Tilbury station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. If you look after a building such as Herringham Primary Academy, its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
Chadwell St Mary is about 2 miles east of Grays, in Thurrock. Whether you are in the middle of Chadwell St Mary or further out, we cover remedial sealant for every kind of property. Across Thurrock, we cover 26 places, and Chadwell St Mary is one of them. You can also see our page for Chelmsford, about 18 miles away.
We work across the RM16 postcode area for remedial sealant and the streets around it. If you need remedial sealant at a property on St Teresa Walk, Claudian Way and Heathlyn Close or a nearby road, our applicators can take on the job. We also cover the places around Chadwell St Mary: Orsett Heath (1 mile north-west), Biggin (1 mile south), West Tilbury (1 mile south-east), Little Thurrock (1 mile west) and Tilbury (2 miles south). We also work in nearby towns such as Stanford-le-Hope (4 miles north-east), South Ockendon (4 miles north-west), Balstonia (3 miles north-east), Corringham (5 miles north-east), Aveley (5 miles west) and South Stifford (3 miles west).
Local landmarks in Chadwell St Mary
Locally, jobs take us to homes and businesses close to Thurrock and Basildon College and Palmer's College, among other places. Chadwell St Mary’s nearest station is East Tilbury station, roughly 1.8 miles east. A little further out are Ealing Broadway Centre (3.5 miles north-west) and Orsett Hospital (1.6 miles north). The countryside around Chadwell St Mary includes Thurrock Thameside Nature Park and Sawyers Lake.
How to look after the new joints
Aftercare is simple:
- Don’t add new sealant on top of old
- Never fill a movement joint with mortar or grout
- Check ceilings under showers for marks
- Air the bathroom so the sealant can dry
If the joint ever needs renewing, have it cut out, not sealed over. Over-sealing is how many remedial jobs start.
A split movement joint lets rain into walls and floors, and the longer it’s left, the more the joint edges break down. A joint with sound edges is far easier to reseal.
Chadwell St Mary questions
Is Chadwell St Mary within the area you cover?
Yes. Chadwell St Mary is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near East Tilbury station. Can you help?
Yes, we work for landlords and agents. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear price.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you don’t need to watch us work.
Where are you based?
We work from Crawley. We cover Chadwell St Mary and the rest of Thurrock.
Can you reseal a split movement joint?
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 does remedial sealant cost?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before work begins.
Someone sealed over the old bead. Can you fix it?
Yes. We cut out all the layers and clean off the film, before resealing with a single bead.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints, and we clear up when we are done.
For landlords and businesses
We work for landlords and letting agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Housing providers, facilities teams and property managers book us too in Chadwell St Mary and across Thurrock. We can quote a run of properties together.