Isle of Wight · England
External Mastic in Bowcombe
External mastic in Bowcombe from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Rigid filler in a joint that should flex
- Weathered mastic that no longer stretches
- Water getting into walls through failed joints
External mastic in Bowcombe, done properly
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. The colour is chosen to suit the brick or render so the joint doesn’t stand out. Typical jobs include sealant that has lost its bond to the brick or render and hard, crazed mastic that has stopped moving, on copings & trims, brickwork movement joints and façade panels.
Older homes in small places like Bowcombe may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water generally gets in, and they need the right sealant at the right depth.
Whatever the size of the job, you get the same one-year guarantee.
- Location
- Bowcombe (PO30)
- Wider area
- Isle of Wight
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes anything from a few hours to several days, depending on the building from start to finish. For a village or hamlet like Bowcombe, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you are ready, phone 0345 464 0079 or send us an email.
Related advice
Why act early in Bowcombe
Resealing a run of joints in one go is usually better than patching one at a time. They’ve weathered the same way and it means sorting access once. Where a wall is exposed, as many are in small places like Bowcombe, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or drop us an email.
Why book with us
- Over 20 years’ experience
- 180+ five-star Google reviews
- Full insurance on every job
- We agree the colour with you first
Take a look at how sealant jobs are priced or our reviews.
What we can’t put right
Before you book, it’s worth knowing the limits:
- Walls that need new movement joints cut into them
- Movement that is more than a sealant joint can take
- Loose or hollow render, which needs re-rendering
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before booking.
Where we work in Bowcombe
- Joints between brick and frames
- Render & cladding joints
- Brickwork movement joints
- Concrete & block
- Copings & trims
- Façade panels
Places near Bowcombe
What else we do in Bowcombe
Your questions about external mastic in Bowcombe
Can you do external mastic in Bowcombe?
Yes. We work across London and the South East, and Bowcombe is part of that. You can call 0345 464 0079 or email us and let us know what needs doing, and we will give you a clear quote.
Is Bowcombe within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us and we are fully insured.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done.
What colours does the sealant come in?
We choose a sealant colour to suit the brick, stone or render. There’s a wide choice of exterior colours.
Can you reach joints on upper floors?
Each building is different. Send us photos and a rough idea of the height.
When will the joints need doing again?
It varies with how exposed the wall is and how much the joint moves. Signs to watch for are cracking, hardening and gaps at the edges.
How long should I leave it?
Different products cure at different speeds, so please follow the time we give you.
Common problems we fix in Bowcombe
Some movement joints have been pointed up with mortar by mistake. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Common reasons people contact us are:
- Movement joints filled with mortar instead of sealant
- Hard, crazed mastic that has stopped moving
- Joints where the bead has come unstuck
- Leaking joints around cladding and façade panels
If you live in an older home near Church of St. Nicholas in Castro, an extension built onto an older house moves differently, and the joint between them takes the strain.
What to look for in a quote
- How long to leave it before use
- What preparation is included
- Is VAT in the price?
- Which sealant they’ll use, and why
DIY sealant or a professional job?
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
How the job changes by surface
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.
What affects the quote in Bowcombe
Some jobs are bigger than they look, and some smaller. The main factors:
- Working hours on commercial sites
- How many rooms, windows or areas are involved
- Which sealant suits the joint
- How much old sealant there is and how hard it is to remove
A failed joint rarely gets cheaper to fix by waiting. If you’re not sure whether it needs doing, ring 0345 464 0079 or send us an email and we will give you an honest view and a quote.
What to tell us for a quote
You do not need to know the technical terms. Just tell us:
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
- Roughly how big the job is
- Any access issues, like height or stairs
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved.
What external mastic looks like in Bowcombe
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. Historic houses like Carisbrooke Castle (about 1.2 miles north-east) are a reminder that the area around Bowcombe has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
If you look after a building such as Christ The King College, larger buildings have long runs of movement joint that eventually need resealing.
Bowcombe is about 2 miles south-west of Newport, in the Isle of Wight. Homes, rented property, offices and hotels in Bowcombe can book us for external mastic, old or new, large or small. Every job comes with our 12-month guarantee. Our area takes in 125 places across the Isle of Wight, from the larger towns to small villages. For nearby work, see our Portsmouth page.
Postcode districts we cover here for external mastic: PO30. We also cover the places around Bowcombe: Plaish (1 mile north-east), Clatterford (1 mile north-east), Carisbrooke (1 mile north-east), Gunville (1 mile north-east) and Gatcombe (2 miles south-east). Within a short drive, we also cover Ryde (8 miles east), Cowes (6 miles north), Sandown (8 miles east), Shanklin (8 miles south-east), Ventnor (8 miles south-east) and East Cowes (6 miles north-east). For island and remote addresses, the job takes a little more planning.
Near you in Bowcombe
We work in homes and buildings around The Blacksmiths Arms and the streets around them. Other landmarks nearby include Whitecroft Hospital (1.6 miles east) and Isle of Wight Music Museum (2.3 miles north-east). Green spaces nearby include Brighstone Down.