West Sussex · England
Stedham External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Stedham and across West Sussex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Rigid filler in a joint that should flex
- Movement joints with cracked, split or missing sealant
- Weathered mastic that no longer stretches
External mastic in Stedham, done properly
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it and we use one wherever it does. Typical jobs include old sealant gone brittle and cracked and leaking joints around cladding and façade panels, across brickwork movement joints, concrete & block and façade panels.
Around Stedham, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water normally gets in.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Stedham (GU29)
- Region
- West Sussex
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
When something else is needed
To be straight with you, there are a few things sealant will not fix:
- Cracks in the bricks or render themselves, away from the joints
- Loose or hollow render, which needs re-rendering
- Subsidence or other structural problems
If you’re not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.
Where we work in Stedham
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
- Concrete & block
- Façade panels
- Joints between brick and frames
Can I do it myself?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
What affects the quote in Stedham
Jobs vary more than people expect. What affects the quote:
- Working hours on commercial sites
- The old material and how stubborn it is
- Access and height
- Mould in or behind the old joints
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Ask us for a quote and we will go through it with you.
Asking for a quote
What to tell us when you ask for a quote:
- How many joints, rooms or windows are involved
- Pictures of the joints, sent by email
- Where the property is
- The type of property
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Places near Stedham
More services for Stedham
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Avoid pressure-washing directly into sealant joints
- Have failed joints looked at early
- Walk round the building once a year and look at the joints
- Fix overflowing gutters above sealed joints
Don’t let soil, plants or ivy build up against the new joints. Damp material against the sealant shortens its life.
An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick, all bigger jobs than a reseal.
Common questions in Stedham
Can you do external mastic in Stedham?
Yes. Our work covers London and the South East, and Stedham is part of that. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear quote.
Do you cover smaller places like Stedham?
Yes, Stedham is covered. We work across 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.
What should I tell you?
The location, the problem and the rough size of the job. If you can, email a few photos.
What does external mastic cost?
Every job is different, so each one gets its own quote. For a quick quote, phone 0345 464 0079 or send us an email with a short description of the job.
Can I add another job to the visit?
Yes. More than one area can be quoted together.
How do you reach high-level joints?
That depends on the building and the joints. Where joints can be reached safely, we will do them. Give us some details and we will confirm the access.
What is a movement joint?
Brickwork, render and cladding all move a little, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
Stedham buildings and the weather
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Cowdray House (about 1.8 miles east) nearby, there’s older building stock in the area around Stedham as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
Managing a site like Stedham Primary School? Then its movement joints, gutters and trims need looking after like any other building’s.
Stedham is about 7 miles east of Petersfield, in West Sussex. Jobs in Stedham get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. 371 places in West Sussex are on our list, from the larger towns to small villages. Portsmouth is on our list too, around 19 miles away.
All of GU29 is within our area for external mastic, from the main roads to the quietest streets. External mastic is available to properties on The Street, The Alley and Queens Street. Neighbouring places we cover for external mastic include Iping (1 mile north-west), Woolbeding (1 mile east), Minsted (1 mile south-west), Bepton Common (1 mile south-east) and Midhurst (1 mile south-east). Further out, we also cover Bognor Regis (15 miles south), Chichester (11 miles south), Emsworth (12 miles south-west), Storrington (15 miles east), Billingshurst (14 miles east) and Portfield (11 miles south).
Around Stedham
In Stedham, that means homes and buildings near Midhurst Rother College and the streets around them. Nearby you will also find Midhurst Museum (1.6 miles east) and Lodsworth Castle (4.5 miles east). Green spaces nearby include Iping and Stedham Commons and Wheeler's Down.
What we are called out for in Stedham
Sometimes a movement joint was filled with mortar or a rigid filler. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Look out for these signs:
- Joints where the bead has come unstuck
- Damp patches traced to an open external joint
- Weeds or debris growing in open joints
- Joints with sealant missing in places
For an older house near a landmark such as The Parish Church of St James, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Comparing quotes
- Who turns up on the day
- Whether you can choose the colour
- Is the old sealant removed completely?
- What product goes in the joint
How the visit works
There is not much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes a few hours for a handful of joints, longer for a whole elevation from start to finish. For a village or hamlet like Stedham, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- We clean both faces of the joint and prime them where the product calls for it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
How to prepare
- Mention any tricky access
- Mention any parking rules near the property
- Move anything stored near the joints
Get a quote
For external mastic in Stedham, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
Advice
How the job changes by surface
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. The old joint is removed and a sealant that bonds to both sides goes in.
Concrete and blockwork
The face of concrete or block is often dusty, so preparation is key. We prime where the sealant needs it.