Thurrock · England
Tilbury External Mastic
Professional external mastic in and around Tilbury, with old sealant always removed completely and a one-year guarantee.
- Cracked joints where brick meets render or frames
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
About our external mastic in Tilbury
Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a matching colour. Typical jobs include rain getting behind render or cladding at a joint and moss and dirt in joints with no sealant left, on façade panels, render & cladding joints and concrete & block.
Outbuildings, garages and conservatories around homes in places like Tilbury add more joints to look after. Leaks generally start at a gutter end, a garage door frame or where an extension meets the house.
All of our work is guaranteed for twelve months.
- Place
- Tilbury (RM18)
- Region
- Thurrock
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Quotes for external mastic in Tilbury
We don’t publish a price list, because no two jobs are the same. What we look at:
- The type of sealant required
- Whether there’s mould to deal with
- Whether the work is at height
- The number and length of the joints
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you are not sure whether it needs doing, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- Where the property is
- Pictures of the joints, sent by email
- How we’d reach the joints
- If it’s domestic, commercial or a hotel
For a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.
What else we do in Tilbury
What we do, step by step
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the job takes a few hours to a few days, depending on the length of joint and the access in most cases. For a job in Tilbury, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Before we arrive
- Mention any sign-in or site rules at work premises
- Mention any leaks or damp you’ve noticed
- Let us know about stairs, lifts or work at height
Ask for a quote
If you’re in Tilbury and need external mastic, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Related advice
Questions from Tilbury
Does living near the coast affect external mastic in Tilbury?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Is Tilbury within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Is there a guarantee?
Yes. All our work carries our 12-month guarantee.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We’ll give you the cure time for the product we used before we leave.
Why do you put foam in the joint first?
The foam is closed-cell backing rod. It stops the sealant going in too deep and bonding to three sides so it can flex with the joint.
Does someone need to be in?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you don’t need to watch us work.
Are you insured?
Yes, we’re fully insured for domestic and commercial work.
Landlord and commercial work in Tilbury
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
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.
Signs you need external mastic in Tilbury
Some movement joints have been pointed up with mortar, often by someone who didn’t know what it was for. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
The most common problems we see are:
- Sealant that has lost its bond to the brick or render
- Old sealant gone brittle and cracked
- Damp patches traced to an open external joint
- Joints with sealant missing in places
Schools such as The Gateway Academy are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
What to look for in a quote
- Whether VAT is included
- Which colour the sealant will be
- How the surfaces are prepared before sealing
- How hidden problems are handled
When something else is needed
A few problems are outside what sealant work can do:
- Cracking across the wall rather than at a joint
- Movement that’s more than a sealant joint can take
- Walls that need new movement joints cut into them
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Surfaces we seal
- Brickwork movement joints
- Façade panels
- Render & cladding joints
- Joints between brick and frames
- Concrete & block
- Copings & trims
Walls and rooflines in Tilbury
Tilbury is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Tilbury Town station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets. In the older streets around St John the Baptist, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Tilbury is about 2 miles south-east of Grays, in Thurrock. Whether you’re in the middle of Tilbury or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Tilbury is one of 26 places in Thurrock where we work. London is on our list too, around 20 miles away.
Jobs for external mastic in RM18 is quoted and booked the same way as anywhere else. We cover properties on Civic Square, London Road and Church Road and the roads around them. Tilbury sits on or near the A126 and A1089. Nearby, we also carry out external mastic in Biggin (1 mile north-east), West Tilbury (2 miles north-east), Chadwell St Mary (2 miles north), Milton-next-Gravesend (2 miles south-east) and Grays (2 miles north-west). We also work in nearby towns such as Stanford-le-Hope (5 miles north-east), South Ockendon (5 miles north-west), Balstonia (5 miles north-east), Corringham (6 miles north-east), Aveley (5 miles north-west) and South Stifford (3 miles north-west).
Around Tilbury
Around Tilbury, our work takes us to homes and buildings near St Mary's Catholic Primary School and Northfleet Urban Country Park and the streets around them. The nearest railway station is Tilbury Town station, roughly 0.5 miles west of the centre. A little further out are Stone Castle (4 miles west) and Gravesham Community Hospital (1.4 miles south). For a walk, there’s Sawyers Lake and Chafford Gorges Nature Park.
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Fix overflowing gutters above sealed joints
- Tell anyone working on the walls about the movement joints
- Clear growth from the base of walls and joints
- Look over the joints every year, ideally after winter
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
Once a joint can’t move, the wall finds another way, normally as cracking in the brickwork or render nearby. Resealing it early helps prevent that.