West Sussex · England
External & façade joints in Birdham, West Sussex
External mastic in Birdham from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Water getting into walls through failed joints
- Joints with sealant missing in places
- Weathered mastic that no longer stretches
External mastic in Birdham
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a colour to suit. Common call-outs are for rigid filler in a joint that should flex and panel joints letting water in, across render & cladding joints, façade panels and concrete & block.
Older homes in small places like Birdham may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water normally gets in.
Big or small, it’s backed by our one-year guarantee in Birdham and across West Sussex.
- Place
- Birdham (PO20)
- Region
- West Sussex
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we can’t put right
We will not take on work that won’t last, so these are the limits:
- Failed render or damaged cladding panels
- Walls that need new movement joints cut into them
- Subsidence or other structural problems
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Joints and surfaces we work on
- Façade panels
- Joints between brick and frames
- Concrete & block
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
What happens on the day
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours to a few days, depending on the length of joint and the access. Somewhere like Birdham 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.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- Mention any tricky access
- Keep children and pets away from the work area
- Let us know if you’ve seen damp or leaks
Get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Advice
Birdham: your questions answered
Can you help a landlord with a rental near Fishbourne station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
Do you cover smaller places like Birdham?
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.
Is it OK to fill a movement joint with cement?
No. Mortar locks the joint solid, so the wall cracks somewhere else instead. Use a flexible sealant with backing rod.
When will the joints need doing again?
It varies with how exposed the wall is and how much the joint moves. Look for splits, hardening or edges coming away.
Is it worth trying it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Can you quote for more than one area?
Yes, we can. Several rooms, windows or areas can go on one quote.
Where are you based?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Do you guarantee your work?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we’ll sort it.
Looking after it afterwards
After the cure time, these simple habits help:
- Deal with leaking gutters that soak the joints below
- Leave the joints unpainted unless we have said otherwise
- Get split or bare joints resealed while the damage is small
- Keep movement joints as flexible joints, not mortar
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
Once a joint cannot move, the wall finds another way, normally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
What external mastic looks like in Birdham
Birdham is within about 2 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on movement joints and outside wall joints, especially on the side facing the sea. 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.
In the older streets around St James' Church, older walls, gutters and the joints where extensions meet them need a flexible sealant. Letting a property close to Fishbourne station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Birdham is about 4 miles south-west of Chichester, in West Sussex. We carry out external mastic for homeowners, landlords and businesses in Birdham and the surrounding area. Across West Sussex, we cover 371 places, Birdham among them. Portsmouth is on our list too, about 11 miles from Birdham.
Every address in PO20 is covered for external mastic. Local streets include Old Common Close, Main Road and Walwyn Close. Close by, we work in Somerley (1 mile south-west), Almodington (1 mile south), Shipton Green (1 mile west), Highleigh (2 miles south-east) and Earnley (2 miles south). Larger places within reach include Bognor Regis (6 miles east), Chichester (4 miles north-east), Selsey (5 miles south-east), Littlehampton (13 miles east), Emsworth (6 miles north-west) and Rustington (14 miles east).
Around Birdham
Around Birdham, our work takes us to homes and buildings near The Birdham Public House and the streets around them. Birdham’s nearest station is Fishbourne station, about 3.3 miles north of the centre. Well-known places in the area include Chichester Castle (4.1 miles north-east) and St Richard's Hospital (4.4 miles north-east). Green spaces nearby include Pilsey Island.
Leave it or put it right?
Resealing a run of joints in one go is usually better than patching one at a time. They’ve weathered the same way, and access only has to be arranged once. In a small place like Birdham, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why book with us
- Anti-fungal sanitary silicone in wet areas
- Any old sealant cut out fully, not covered over
- Experience in homes, commercial sites and hotels
- 4.9 on Google from 180+ five-star reviews
Quotes for external mastic in Birdham
Call for a quick quote. What matters most is:
- How many areas need sealing
- Any mould that needs treating
- The size of the job
- Whether old sealant or filler has to be cut out
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
What we need to know
What to tell us when you ask for a quote:
- Access, such as stairs, a lift or height
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
- If it’s domestic, commercial or a hotel
Want a quote for external mastic? Please phone 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and give you a clear price before we start.
Landlords, agents and businesses in Birdham
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
Letting agents and landlords in Birdham can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Common problems we fix in Birdham
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
Signs it’s time to call us include:
- Failed seals between different materials
- Sealant that has lost its bond to the brick or render
- Plants rooting in failed movement joints
- Panel joints letting water in
Schools such as Birdham CE Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
What to look for in a quote
- Is VAT in the price?
- Whether the sealant suits the joint
- What the cure time is
- What guarantee comes with the work