Isle of Wight · England
Chilton Green External Mastic
Professional external mastic in and around Chilton Green, with every bit of old sealant taken out first and a one-year guarantee.
- Joints with sealant missing in places
- Failed seals between different materials
- Hard, crazed mastic that has stopped moving
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
About our external mastic in Chilton Green
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. We work on concrete & block, brickwork movement joints and copings & trims, and people most often call us about hard, crazed mastic that has stopped moving and moss and dirt in joints with no sealant left.
Somewhere as small as Chilton Green, homes and farm buildings often face open ground, where walls and rooflines take the weather head on. Joints on those walls need a sealant that moves with the building and stays in place.
Your job is guaranteed for a year, as with all our work.
- Place
- Chilton Green (PO30)
- Wider area
- Isle of Wight
- Guarantee
- A year, on every job
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the cost of external mastic
The quote reflects the job in front of us. We take into account:
- Whether the work is at height
- When we can work, for business premises
- The number of rooms or windows
- The product the joint needs
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
To make quoting easier, let us know:
- Where the job is, and your postcode
- Access, such as stairs, a lift or height
- A few pictures by email, if you can
- What the problem is, such as mould, gaps, leaks or cracking
We do not publish a price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.
Common questions in Chilton Green
Does the coastal weather in Chilton Green 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.
Do you cover smaller places like Chilton Green?
Yes, Chilton Green is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
What do you need from me for a quote?
A short description and the location, plus photos if you have them. We will ask anything else we need to know.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Can new sealant go over the old?
No. The old sealant always comes out first, so the new joint bonds to clean surfaces.
Do you remove the old sealant?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Places near Chilton Green
Also in Chilton Green
Why act early in Chilton Green
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. Older cottages and farmhouses around Chilton Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first and agree the price before starting.
Why us?
- Colour agreed with you before any work starts
- We leave the area clean and tidy
- A 12-month guarantee on all work
- Fully insured
What happens on the day
There is not much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes anything from a few hours to several days, depending on the building. Somewhere as small as Chilton Green, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
How to prepare
- Tell us about any water getting in
- Try not to wet indoor joints just before the visit
- Keep pets and children clear of the area while we work
Get a quote
If you’re in Chilton Green and need external mastic, ring 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Advice
When to call us in Chilton Green
Many joints fail because they were sealed too deep or with nothing behind them. Sealant bonded to three sides has nowhere to go and tears as soon as the joint widens.
People normally contact us when they notice one of these:
- Weeds or debris growing in open joints
- Rain getting behind render or cladding at a joint
- Cracked joints where brick meets render or frames
- Movement joints filled with mortar instead of sealant
If you live in an older home near St Peter and St Paul's Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Comparing quotes
- What the cure time is
- What the quote includes, VAT included or not
- Whether they seal over old material or remove it
- Are they insured?
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- Keep high-pressure jets off the joints
- Walk round the building once a year and look at the joints
- Leave the joints unpainted unless we have said otherwise
- Keep movement joints as flexible joints, not mortar
Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established, so it’s worth resealing at the first signs.
External mastic in Chilton Green: local notes
Chilton Green is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Historic houses like Mottistone Manor (about 0.9 miles north-west) are a reminder that the area around Chilton Green 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.
If you look after a building such as Brighstone Church of England Aided Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Chilton Green is about 7 miles south-west of Newport, in the Isle of Wight. Wherever you are in the PO30 postcode area, we can carry out external mastic at your property. 125 places in the Isle of Wight are on our list. Our Southampton page covers work nearby, about 19 miles away.
Every address in PO30 is covered for external mastic. Other places close to Chilton Green include Marsh Green (1 mile south-east), Hulverstone (1 mile north-west), Brookgreen (1 mile west), Brook (2 miles north-west) and Dunsbury (2 miles north-west). Further out, we also cover Newport (7 miles north-east), Ryde (12 miles north-east), Cowes (9 miles north-east), Sandown (11 miles east), Shanklin (10 miles east) and Ventnor (10 miles east). Island and remote addresses take a little more planning, so please mention your location when you phone 0345 464 0079 or send us an email.
Near you in Chilton Green
Locally, jobs take us to homes and businesses close to The Three Bishops pub and the streets around them. Well-known places in the area include Whitecroft Hospital (5.5 miles north-east) and Brighstone Village Museum (0.9 miles east). The countryside around Chilton Green includes Westover Down.
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.