Greater London · England
Newbury Park External Mastic
Professional external mastic in and around Newbury Park, with old sealant always removed completely.
- Movement joints with cracked, split or missing sealant
- Water getting into walls through failed joints
- Hard, crazed mastic that has stopped moving
External mastic in Newbury Park, done properly
On houses, flats and commercial buildings across Newbury Park, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean joint faces and the right depth. We work on façade panels, concrete & block and joints between brick and frames, and the jobs we see most are leaking joints around cladding and façade panels and sealant that has lost its bond to the brick or render.
Newer London blocks are built with movement joints in brick and render, and with cladding joints sealed with mastic. Period houses have different weak points, such as gutter joints, trims and the line where an extension meets the old wall, and both kinds of building are found across London.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Place
- Newbury Park (IG2, IG6, IG3)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Leave it or put it right?
Sealing over the top of old mastic doesn’t hold for long. New sealant doesn’t bond well to old, weathered sealant, so we always take the old sealant out. In a flat in Newbury Park, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why us?
- Anti-fungal sanitary silicone in wet areas
- 4.9 on Google from 180+ five-star reviews
- Approved under the ARBOMaster scheme
- A sealant colour to suit the surroundings
Read what affects the cost and what customers say.
What sealant work cannot fix
We will always be straight with you, so here’s what sealant cannot fix:
- Render that’s blown, hollow or coming away
- Rising or penetrating damp from elsewhere in the wall
- Movement that’s more than a sealant joint can take
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
What we seal
- Render & cladding joints
- Façade panels
- Concrete & block
- Joints between brick and frames
- Brickwork movement joints
- Copings & trims
What we’re called out for in Newbury Park
If plants are growing out of a joint, the sealant has normally failed or was never there. Roots and dirt hold water against the wall.
Keep an eye out for any of the following:
- Movement joints with cracked, split or missing sealant
- Plants rooting in failed movement joints
- Old sealant gone brittle and cracked
- Leaking joints around cladding and façade panels
For an older house near a landmark such as Saint Laurence Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Comparing quotes
- The length of the guarantee
- Which colour the sealant will be
- What preparation is included
- What happens if the job turns out different
Aftercare tips
To keep the joints looking good and working properly:
- Tell anyone working on the walls about the movement joints
- Wash walls gently around the sealant
- Act on the first splits you see
- Leave the joints unpainted unless we’ve said otherwise
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, usually as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
Quotes for external mastic in Newbury Park
Your quote is based on your job. We take into account:
- Any working-time requirements on site
- The product the joint needs
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
What it costs depends on how much there is to do, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Helping us quote
You do not need to know the technical terms. It helps if you can tell us:
- Any access issues, like height or stairs
- The address or postcode of the job
- Roughly how big the job is
- Any previous sealing or DIY work
There’s no standard price list. Instead, we give you a clear price for your job. To get started, call 0345 464 0079 or drop us an email.
For landlords and businesses
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Newbury Park buildings and the weather
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Valentines Mansion (about 0.9 miles west) are a reminder that the area around Newbury Park has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Letting a property close to Seven Kings station? Then outside joints that have cracked can let damp into a rental, so check them between lets. For site and facilities teams at buildings such as Newbury Park Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Newbury Park is about 3 miles north of Barking, in Greater London. We provide external mastic to homes and businesses in Newbury Park and the surrounding area. Newbury Park is one of 764 towns and villages in Greater London we cover. Our London page covers work nearby, about 9 miles away.
All of IG2, IG6 and IG3 is covered for external mastic. We cover properties on Lynn Road, Bute Road and Duke Road and the roads around them. Being close to the A12, Newbury Park is simple for us to get to for external mastic. We also cover Gants Hill (1 mile west), Barkingside (1 mile north), Seven Kings (1 mile south-east), Ilford (1 mile south) and Cranbrook (1 mile south-west). We also work in nearby towns such as London (9 miles south-west), City of Westminster (11 miles south-west), Marylebone (11 miles west), Kensington (13 miles south-west), St Pancras (9 miles west) and Shoreditch (8 miles south-west).
Near you in Newbury Park
We work in homes and buildings around Valentines Park and Oaks Park High School, among other places. The nearest railway station is Seven Kings station, about 1 mile south-east of the centre. Nearby you will also find Redbridge Museum (1.4 miles south) and Goodmayes Hospital (1 mile east). For a walk, there’s Hainault Lodge and Hollow Pond.
Common questions in Newbury Park
Can you help a landlord with a rental near Seven Kings station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
Can parking be tricky for a visit in Newbury Park?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly.
Will there be a smell?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Can you reach joints on upper floors?
It depends on the building. We work on joints that can be reached safely. Give us some details and we will confirm the access.
Do you do commercial work?
Yes. Larger jobs can be planned room by room or area by area.
Can a movement joint be filled with mortar?
No, not where the gap is a movement joint. Pointing it stops it working and can lead to cracking. We will reseal it with a flexible sealant.
Can you match the colour of my brickwork?
We aim for a joint that suits the wall rather than one that jumps out. Colour is agreed with you before we begin, matched as closely as the range allows.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
What happens on the day
Most of a good job is in the preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours to a few days, depending on the length of joint and the access. In Newbury Park, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- 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.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- Where the joints are inside, avoid wetting them before we arrive
- Mention any tricky access
Getting a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work and send you a clear quote.