Kent · England
New Romney External Mastic
Specialist external mastic for New Romney: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Moss and dirt in joints with no sealant left
- Panel joints letting water in
- Joints where the bead has come unstuck
Why it’s worth doing now in New Romney
It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together and it means sorting access once. In a smaller place like New Romney, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
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. You will know the price before we begin.
Why choose Mr Mastic in New Romney
- Sealant colour chosen to suit
- More than 20 years in sealant work
- Quality sealants from Arbo and Everbuild
- Tidy, careful work
Take a look at our cost guide and customer reviews.
External mastic for homes and businesses in New Romney
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render so the joint does not stand out. If you have rain getting behind render or cladding at a joint and rigid filler in a joint that should flex, we can help, on brickwork movement joints, concrete & block and copings & trims alike.
Outbuildings, garages and conservatories around homes in places like New Romney add more joints to look after. Leaks normally start at a gutter end, a garage door frame or where an extension meets the house.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Where
- New Romney (TN28)
- Wider area
- Kent
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

What sealant work can’t fix
New sealant can’t fix everything, and we’ll tell you before we start. Sealant will not put right:
- Damp that isn’t coming from the joint
- Subsidence or other structural problems
- Adding movement joints to masonry that has none
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think.
Surfaces we seal
- Brickwork movement joints
- Joints between brick and frames
- Concrete & block
- Copings & trims
- Façade panels
- Render & cladding joints
Aftercare tips
Good habits help new joints last longer. Our tips:
- Keep high-pressure jets off the joints
- Make sure movement joints aren’t pointed over
- Show decorators and builders where the movement joints are
- Act on the first splits you see
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
A joint that has stopped moving pushes the movement elsewhere, normally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Places near New Romney
More services for New Romney
How we quote for external mastic
Every job gets its own quote. This is what makes a difference:
- The size of the job
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, ring 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
What we need to know
When you call or email, it’s useful to know:
- Photos by email, if that’s easy
- Where the job is, and your postcode
- Access, such as stairs, a lift or height
- The rough size of the job
Need a quote? Please phone 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and give you a clear price before work begins.
How the job changes by surface
Concrete and blockwork
The face of concrete or block is often dusty, so cleaning and priming matter. We prime where the sealant needs it before the bead.
Cladding and façade panels
Cladding and façade panels are usually separated by sealed joints. Each joint gets a sealant that suits the panel and its movement.
What external mastic looks like in New Romney
New Romney is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is 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, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as St Nicholas Church of England Primary Academy are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.
New Romney is about 8 miles south-west of Hythe, in Kent. We provide external mastic to homeowners, landlords and businesses in New Romney and nearby. Our Kent coverage runs to 922 places, New Romney among them. We also work in Brighton, about 48 miles from New Romney.
Every address in TN28 is within our area for external mastic. You’ll find streets such as High Street, Church Road and Station Road. With the A259 and B2071 close by, New Romney is simple for us to get to for external mastic. We also cover Littlestone-on-Sea (1 mile east), Greatstone-on-Sea (1 mile south-east), St Mary in the Marsh (2 miles north), St Mary's Bay (2 miles north-east) and Old Romney (2 miles west). Further out, we also cover Ashford (11 miles north), Folkestone (12 miles north-east), Hythe (8 miles north-east), Hawkinge (13 miles north-east), Tenterden (12 miles north-west) and Cheriton (11 miles north-east).
What’s near New Romney
In New Romney, that means homes and buildings near Romney Warren Country Park, The Marsh Academy and The Marsh Academy and the streets around them. Other landmarks nearby include Lydd Town Museum (3 miles south-west) and Romney 'castle' (2.1 miles west). Not far away are Burnthouse Pen and Dungeness National.
What we are called out for in New Romney
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
Keep an eye out for these signs:
- Failed sealant between panels on a façade
- Water getting into walls through failed joints
- Cracked joints where brick meets render or frames
- Movement joints with cracked, split or missing sealant
In the older streets around Church of St Nicholas, an extension built onto an older house moves differently, and the joint between them takes the strain.
Questions to ask before booking
- Whether all the old sealant comes out first
- Who turns up on the day
- How hidden problems are handled
- What product goes in the joint
Questions from New Romney
Is New Romney within the area you cover?
Yes, New Romney is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Does the coastal weather in New Romney affect outside sealant?
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.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Do you remove the old sealant?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
When will the joints need doing again?
It depends on the exposure, the movement and the product. Treat it as a maintenance item and look at it yearly and renew it when it starts to fail.
Do you work for landlords and businesses?
Yes. We work in homes, commercial premises and hotels.
Is it OK to fill a movement joint with cement?
No. Rigid materials can’t move with the wall, so the joint stops doing its job. If it has already been filled, we can usually cut it out and reseal it.
How the visit works
Once we’re on site, we compare the joints with what we discussed. 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. A visit to New Romney is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- 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.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- Let us know about parking restrictions
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
Asking for a quote is easy: let us know what needs doing and where. Photos by email help us understand the job, and we’ll come back to you with a quote.
