Isle of Wight · England
External Mastic in Oakfield
Specialist external mastic for Oakfield: careful preparation, the right product and tidy work. Call for a quick quote.
- Movement joints filled with mortar instead of sealant
- Rain getting behind render or cladding at a joint
- Sealant that has lost its bond to the brick or render
External mastic in Oakfield
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. We pick a colour that sits well with the wall. Common call-outs are for failed sealant between panels on a façade and joints pointed up with cement by mistake, on render & cladding joints, copings & trims and façade panels.
Homes around Oakfield range from older cottages to newer houses, with walls and rooflines of every type. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
Whatever the size of the job, you get the same one-year guarantee in Oakfield and across the Isle of Wight.
- Where
- Oakfield (PO33)
- Wider area
- Isle of Wight
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Oakfield buildings and the weather
Oakfield is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Dover Park Primary School? Then larger buildings have long runs of movement joint that eventually need resealing. In the older streets around St John's Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
Oakfield is about 6 miles south-west of Southsea, in the Isle of Wight. Our applicators cover external mastic for householders, landlords and businesses in Oakfield. Oakfield is one of 125 towns and villages in the Isle of Wight we cover for external mastic. There’s also a page for Portsmouth, roughly 7 miles from Oakfield.
All of PO33 is within our area for external mastic. Whether your property is on Park Road, Rink Road and Hope Road or anywhere close by, our applicators can take on the job. Oakfield sits on or near the A3055. If you’re just outside Oakfield, we cover Elmfield (1 mile east), Ryde (1 mile north-west), Appley (1 mile north-east), Westridge (1 mile south-east) and Haylands (1 mile west). We also work in nearby towns such as Newport (6 miles west), Cowes (7 miles west), Sandown (5 miles south), Shanklin (6 miles south), Ventnor (9 miles south) and East Cowes (6 miles west). Oakfield is one of the larger places we cover in the Isle of Wight. If you are somewhere remote, a little more planning is needed.
What’s near Oakfield
We work in homes and buildings around Ryde Academy, Ryde School with Upper Chine and The Railway pub, among other places. There’s a railway station in Oakfield itself: Ryde St Johns Road station. A little further out are Gosport War Memorial Hospital (5 miles north) and The Donald Mcgill Museum (0.8 miles north). For a walk, there’s Alan Hersey Nature Reserve and Brading Down.
What else we do in Oakfield
What affects the quote in Oakfield
We quote each job individually. These are the things that affect it:
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
- How easy the joints are to reach
- How many rooms, windows or areas are involved
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
Helping us quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- How we’d reach the joints
To get a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll send you a clear quote before any work starts.
How the job changes by surface
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. The movement joint takes that up, so the sealant in it must stay soft and stretchy.
Joints between dissimilar materials
Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.
Questions from Oakfield
Will you come out to Oakfield?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Does the coastal weather in Oakfield affect outside sealant?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. Walls facing the sea are normally the first to need attention.
What colours does the sealant come in?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin, matched as closely as the range allows.
How do you reach high-level joints?
That depends on how high the joints are and the ground below. Ground-floor joints are simple; for higher work, tell us about the building and we will confirm what’s needed.
Can you seal over the old sealant?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. We remove it all first.
What is backing rod for?
Backing rod controls the sealant depth and keeps it off the back of the joint. Then the sealant bonds to two faces and can move.
Do you work for landlords and businesses?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels across the Isle of Wight.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
What we are called out for in Oakfield
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it can’t stretch and tears as soon as the joint widens.
The most common problems we see are:
- Joints where the bead has come unstuck
- Weathered mastic that no longer stretches
- Cracked joints where brick meets render or frames
- Leaking joints around cladding and façade panels
If you let a flat or house near Ryde St Johns Road station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Before booking anyone
- Who does the work, and how experienced they are
- How the joint is cleaned and prepared
- Whether they’re fully insured
- When the joint can take water or movement
Why act early in Oakfield
A failed movement joint lets water into the wall, behind render and cladding. Dealing with it early keeps the repair to the joint, rather than the wall around it. In an older home around Oakfield, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Why choose Mr Mastic in Oakfield
- Colour agreed with you before we start
- White, clear, grey or coloured to suit, where the product allows
- Domestic, commercial and hotel work
- Old sealant always removed completely
Take a look at what affects the cost or customer reviews.
When it is not the sealant
It helps to know what we can’t do too:
- Movement that is more than a sealant joint can take
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Walls that need new movement joints cut into them
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think before booking.
What we seal
- Joints between brick and frames
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
- Copings & trims
- Façade panels
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Point out the joints to other trades
- Keep movement joints as flexible joints, not mortar
- Do not let climbing plants root in the sealant
- Walk round the building once a year and look at the joints
Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead.
Act while the splits are small. At that stage it’s a simple cut out and reseal.
What we do, step by step
When we get to you, 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. For a job in Oakfield, we agree the time, the access and parking before the day. 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.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- On commercial sites, let us know about site rules
- Let us know about earlier repairs to the joints
- Try not to wet indoor joints just before the visit
How to get a quote
We quote each job on its own, so the first step is telling us about yours. Just call 0345 464 0079 or email us with the details and send photos if you have them.