Southend-on-Sea · England
Prittlewell External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for Prittlewell, backed by a one-year guarantee. Call for a quick quote.
- Movement joints filled with mortar instead of sealant
- Sealant that has lost its bond to the brick or render
- Hard, crazed mastic that has stopped moving
External mastic for homes and businesses in Prittlewell
Short cuts in external joints show up within a season or two. Overfilled joints, missing backing rod and sealant laid over old sealant rarely last long. We strip the joint back and start again. If you are dealing with panel joints letting water in and joints with sealant missing in places, we can help, whatever the surface.
Plenty of homes in a town like Prittlewell have been extended, and the line where an extension meets the original house is a common leak point. Sealing it properly means the right joint depth and a flexible sealant, not a quick bead.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we’ll put it right.
- Where
- Prittlewell (SS0, SS2, SS1)
- Wider area
- Southend-on-Sea
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026

Looking after it afterwards
After the cure time, these simple habits help:
- Look over the joints every year, ideally after winter
- Do not let climbing plants root in the sealant
- Deal with leaking gutters that soak the joints below
- Ask before painting over external sealant
Do not paint over the new sealant unless we’ve said the product is paintable. Paint can crack on a flexible joint, and paint can crack as the joint moves.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
Nearby places to Prittlewell
More services for Prittlewell
Landlords, agents and businesses in Prittlewell
For anyone letting property in or around Prittlewell, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
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’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Prittlewell buildings and the weather
Prittlewell is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. With historic houses such as Southchurch Hall (about 1.3 miles south-east) nearby, there’s older building stock in the area around Prittlewell as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Rented homes near Prittlewell station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies. Homes close to Church of St Mary include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep. For site and facilities teams at buildings such as Westborough Academy, its movement joints, gutters and trims need looking after like any other building’s.
Prittlewell is about 1 mile east of Southend-on-Sea, in Southend-on-Sea. Whether you’re in the middle of Prittlewell or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our Southend-on-Sea coverage runs to 16 places, and Prittlewell is one of them. Our Chelmsford page covers work nearby (16 miles or so).
We work across the SS0, SS2 and SS1 postcode area for external mastic and the streets around it. If you need external mastic at a property on Ely Road, Park Road and Park Lane or anywhere close by, our applicators can take on the job. Prittlewell is on the A13, which makes it straightforward to reach. If you’re just outside Prittlewell, we cover Southchurch (1 mile east), Sutton (2 miles north-east), Stonebridge (3 miles east), Thorpe Bay (3 miles south-east) and North Shoebury (3 miles east).
What’s near Prittlewell
Locally, jobs take us to homes and businesses close to Southend High School for Boys, The Railway Hotel and St Hilda's School and the streets around them. Prittlewell has its own railway station: Prittlewell station. Nearby you will also find Hadleigh Castle (4.1 miles west) and Southend University Hospital (0.8 miles north-west). The countryside around Prittlewell includes Two Tree Island.
Leave it or put it right?
Water gets in through a failed movement joint, behind render and cladding. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. Draughts from a gap round a frame, damp under a sill or water behind a bath panel all start small, and early is when they’re cheapest and quickest to sort.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Why us?
- Over 20 years’ experience
- Rated 4.9 stars on Google
- Sanitary silicone with an anti-fungal additive in wet areas
- Quality sealants from Arbo and Everbuild
Read what affects the cost or what customers say.
Different surfaces, different methods
Joints between dissimilar materials
Wherever two materials meet, they move differently. We seal the joint with a flexible exterior sealant so the movement is taken up.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it or an approved alternative. Tell us what the building has when you get in touch.
What we do, step by step
Once we’re on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a handful of joints, longer for a whole elevation. Parking in a town like Prittlewell is normally straightforward, but tell us if there’s a driveway or any restrictions, and let us know if the work is upstairs, in a flat or up high outside.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Let us know about earlier repairs to the joints
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any water getting in
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Read more
FAQs for Prittlewell
Is Prittlewell in your area for external mastic?
Yes. We work across London and the South East, and Prittlewell is part of that. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll send you a clear quote.
Can you help a landlord with a rental near Prittlewell station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. You can phone 0345 464 0079 or email us with the details for a clear quote.
Can you work on commercial sites?
Yes. We can plan bigger jobs in stages to suit the site.
Is it messy?
We keep the work tidy. We protect what’s around the joints, and we clear up when we’re done.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is normally more efficient.
What does external mastic cost?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or send us an email and let us know what needs doing and where.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover Prittlewell.
Is there a guarantee?
Yes. All our work carries our 12-month guarantee.
What we can’t put right
To be straight with you, there are a few things sealant will not fix:
- Movement that is more than a sealant joint can take
- Cracks in the bricks or render themselves, away from the joints
- Rising or penetrating damp from elsewhere in the wall
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think before booking.
Joints and surfaces we work on
- Copings & trims
- Façade panels
- Brickwork movement joints
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
