West Sussex · England
External & façade joints in Portfield, West Sussex
Movement joints in Portfield need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Movement joints filled with mortar instead of sealant
- Failed sealant between panels on a façade
- Moss and dirt in joints with no sealant left
About our external mastic in Portfield
Ground-floor and low-level joints are straightforward to reach. For joints higher up, give us some details of the building and we will confirm what access is needed. Typical jobs include joints pointed up with cement by mistake and movement joints with cracked, split or missing sealant, on render & cladding joints, concrete & block and copings & trims.
Homes around Portfield 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.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Where
- Portfield (PO19, PO20, PO18)
- Wider area
- West Sussex
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Deal with leaking gutters that soak the joints below
- Never let anyone fill a movement joint with mortar
- Ask before painting over external sealant
- Look over the joints every year, ideally after winter
Look over the joints once a year, ideally after winter. Watch for splits, edges coming away or growth in the joint.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal with no damage behind it to deal with.
Landlord and commercial work in Portfield
If you manage several properties in or around Portfield, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
FAQs for Portfield
I let a flat near Chichester station. Can you help?
Yes, we work for landlords and agents. You can ring 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Will you come out to Portfield?
Yes. Portfield is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you match the colour of my brickwork?
The sealant colour is picked to suit the wall. Exterior sealants come in a good range of colours.
Will there be a smell?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
Do you use backing rod?
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.
Can you reach joints on upper floors?
It depends on the building. Where joints can be reached safely, we will do them. Give us some details and we will confirm the access.
How long should I leave it?
Cure times vary by product. Before we leave, we will tell you the cure time.
Is the work guaranteed?
Yes, always. Each job is guaranteed for twelve months, large or small.
When to call us in Portfield
UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
The most common problems we see are:
- Hard, crazed mastic that has stopped moving
- Leaking joints around cladding and façade panels
- Cracked joints where brick meets render or frames
- Joints pointed up with cement by mistake
If you live in an older home near St George's, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Before you book anyone
- Who does the work, and how experienced they are
- What product goes in the joint
- What guarantee comes with the work
- Whether you can choose the colour
What we can’t put right
In fairness, there are a few things sealant will not fix:
- Cracking across the wall rather than at a joint
- Structural movement, which needs a surveyor or engineer
- Damp that isn’t coming from the joint
If in doubt, phone 0345 464 0079 or email us and we will say what we think before you book.
Where we work in Portfield
- Brickwork movement joints
- Render & cladding joints
- Façade panels
- Concrete & block
- Joints between brick and frames
- Copings & trims
What happens if it’s left?
Resealing a run of joints in one go is generally better than patching one at a time. They’ve weathered the same way and it means sorting access once. Homes in smaller places like Portfield can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
Why us?
- Homes, businesses and hotels
- Tidy, careful work
- Full insurance on every job
- 12-month guarantee on every job
Take a look at how sealant jobs are priced or our reviews.
What affects the cost of external mastic
Jobs vary more than people expect. The main factors:
- Which sealant suits the joint
- How much old sealant there is and how hard it is to remove
- When we can work, for business premises
- Whether the work is at height
Combining jobs into one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
What to tell us for a quote
When you contact us, these details help:
- If it’s domestic, commercial or a hotel
- Where the property is
- Whether it has been sealed before
- Any access issues, like height or stairs
Need a quote? Please ring 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and send you a clear quote before any work starts.
How it works
We bring everything the job needs with us, so you don’t need to buy or prepare anything. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Parking around Portfield is generally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Before we arrive
- Tell us about any water getting in
- Mention if the joints have been sealed before
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work.
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Nearby places to Portfield
Also in Portfield
External mastic in Portfield: local notes
With historic houses such as Goodwood House (about 2.5 miles north) nearby, there’s older building stock in the area around Portfield as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. 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.
If you let a flat or house near Chichester station, outside joints that have cracked can let damp into a rental, so check them between lets. Schools such as Portfield Primary Academy are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Portfield is about 1 mile east of Chichester, in West Sussex. Whether you’re in the middle of Portfield or further out, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Portfield is one of 371 places in West Sussex where we work. Our Portsmouth page covers work nearby.
Postcode districts we cover here for external mastic: PO19, PO20 and PO18. We cover properties on Kent Road, York Road and Spur Road. You will find Portfield on the A259 and A285, so it’s easy for us to get to. We also cover the places around Portfield: Chichester (1 mile west), Westhampnett (1 mile north-east), Shopwyke (1 mile east), Maudlin (1 mile north-east) and North Mundham (2 miles south). Larger places within reach include Bognor Regis (5 miles south-east), Selsey (7 miles south), Littlehampton (10 miles east), Emsworth (8 miles west), Rustington (11 miles east) and Storrington (15 miles north-east).
Around Portfield
Typical jobs here are in homes near The Prebendal School, The East Gate Public House and Chichester High School For Girls and the streets around them. For rail, the closest station is Chichester station, roughly 0.9 miles west of the centre. Nearby you will also find The Chichester City Museum (0.6 miles west) and Chichester Castle (0.6 miles west). Open spaces near Portfield include Kingley Vale National Nature Reserve and Stoke Down.