Isle of Wight · England
External & façade joints in Downend, Isle of Wight
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Downend. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Damp patches traced to an open external joint
- Sealant that has lost its bond to the brick or render
- Brick movement joints where the sealant has split
What sealant work can’t fix
We won’t take on work that will not last, so these are the limits:
- Subsidence or other structural problems
- Cutting new joints into brickwork, which is building work rather than sealant work
- Damp that is not coming from the joint
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
Surfaces we seal
- Render & cladding joints
- Joints between brick and frames
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Façade panels
About our external mastic in Downend
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. Common call-outs are for joints with sealant missing in places and failed seals between different materials, on copings & trims, brickwork movement joints and render & cladding joints.
In a village or hamlet like Downend, older cottages and farm buildings often stand in the open, where walls and rooflines take the weather head on. Gutter joints and wall joints there need a sealant that can flex and stay put.
All of our work is guaranteed for twelve months.
- Where
- Downend (PO30)
- Wider area
- Isle of Wight
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What the job involves on each surface
Copings and trims
Coping joints that leak let water straight down into the wall. Resealing them is a small job that protects a lot.
Concrete and blockwork
Concrete faces can be dusty and porous, so cleaning and priming matter. We prime where the sealant needs it before the bead.
Also in Downend
Common problems we fix in Downend
Joints sealed without backing rod, or far too deep, rarely last. Sealant bonded to three sides has nowhere to go and tears as soon as the joint widens.
The problems people usually mention when they call are:
- Rain getting behind render or cladding at a joint
- Plants rooting in failed movement joints
- Rigid filler in a joint that should flex
- Joints with sealant missing in places
Rented homes near Smallbrook Junction station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What your quote should include
- Whether VAT is included
- What product goes in the joint
- When the joint can take water or movement
- Are they insured?
DIY sealant or a professional job?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Outside joints around Downend
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Arreton Manor (about 0.8 miles south) are a reminder that the area around Downend 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.
In the older streets around St. George's Church, an extension built onto an older house moves differently, and the joint between them takes the strain. Managing a site like Medina College? Then larger buildings have long runs of movement joint that eventually need resealing.
Downend is about 2 miles east of Newport, in the Isle of Wight. Homes, rented property, offices and hotels in Downend is covered for external mastic. 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. You can also see our page for Portsmouth, about 11 miles away.
Jobs for external mastic in PO30 is quoted and booked the same way as anywhere else. Whether your property is on Briddlesford Road and Long Lane or a nearby road, we can help. Other places close to Downend include Arreton (1 mile south), Merstone (2 miles south), Blackwater (2 miles south-west), Shide (2 miles west) and Newchurch (2 miles south-east). Further out, we also cover Ryde (4 miles north-east), Cowes (5 miles north-west), Sandown (4 miles south-east), Shanklin (5 miles south-east), Ventnor (7 miles south) and East Cowes (5 miles north). For island and remote addresses, a little more planning is needed, so let us know when you get in touch.
Local landmarks in Downend
We work in homes and buildings around The White Lion pub and the streets around them. Downend’s nearest station is Smallbrook Junction station, about 4.3 miles east. A little further out are Carisbrooke Castle (3 miles west) and Whitecroft Hospital (2.7 miles south-west). Green spaces nearby include Brading Down and Briddlesford Nature Reserve.
What happens on the day
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, do the work and clear up. It normally takes anything from a few hours to several days, depending on the building. Somewhere like Downend needs a little journey planning: 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 walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs 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
- Try not to wet indoor joints just before the visit
- Mention any tricky access
- Tell us about any water getting in
Ask for a quote
Need a quote? Please call 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
What affects the quote in Downend
We quote each job individually. This is what makes a difference:
- The number of rooms or windows
- The number and length of the joints
- Any mould that needs treating
- Whether the work is at height
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We will give you a clear price for the lot.
Asking for a quote
What to tell us when you ask for a quote:
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
- What the problem is, such as mould, gaps, leaks or cracking
- Where the property is
It all starts with a short chat. Describe the problem, the location and the size of the job. Whenever you’re ready, ring 0345 464 0079 or send us an email.
Why it’s worth doing now in Downend
Done well, a resealed joint is a neat, straight line that suits the wall. A rushed bead with no backing looks untidy and doesn’t last. In a small place like Downend, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
The cost reflects the work involved, not guesswork. That’s why we ask about the job first and agree the price before starting.
Why Downend customers choose us
- Experience in homes, commercial sites and hotels
- Quality sealants from Arbo and Everbuild
- White, clear, grey or coloured to suit, where the product allows
- Anti-fungal sanitary silicone in wet areas
Read what affects the cost and customer reviews.
Downend questions
Is Downend in your area for external mastic?
Yes, Downend is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing.
Do you cover smaller places like Downend?
Yes, Downend 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 sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
Do you work for landlords and businesses?
Yes, regularly. We can quote for several properties at once, and between tenancies is a good time for the work.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
How do you reach high-level joints?
Each building is different. Tell us the height, the number of joints and what’s below them, and we will confirm what access is needed.
Can you seal joints between two different materials?
Yes. Different materials move at different rates, so the joint between them must be flexible. The sealant is matched to both sides.