West Sussex · England
Gutter, fascia & soffit sealing in Flansham, West Sussex
Professional gutter sealing in and around Flansham, with old sealant always removed completely and a 12-month guarantee.
- Water dripping where gutter sections meet
- Streaks down the brickwork from a leaking joint
- Rain getting in around a garage door
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Check that water runs out of the downpipes
- Watch for drips in a downpour
- Deal with a drip before winter
- Keep ladders off the guttering
Clear the gutters once or twice a year so water does not sit on the joints. Water left in a gutter tests every joint.
Once roofline sealant splits, water can get behind it. Sealing it early keeps the boards behind dry.
About our gutter sealing in Flansham
Many dripping gutters are just a failed joint or end cap. The joint is cleaned, dried and resealed using a gutter sealant. If the gutter is broken or sagging, we will tell you. We work on soffit joints, gutter joints and garage door frames, and common reasons people get in touch are damp on an inside wall under a dripping gutter and stop ends leaking at the end of a run.
External sealant needs dry, clean surfaces, so work around Flansham is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
Your job is guaranteed for a year, as with all our work.
- Where
- Flansham (PO22)
- Wider area
- West Sussex
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How the job changes by surface
uPVC fascias
Fascia board joints can open up. They’re sealed tidily with a matching sealant where possible.
Gutter end caps
End caps take the pressure of water running along the gutter. A failed seal makes them leak.
Flansham buildings and the weather
Flansham is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on gutter, fascia and roofline 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In the older streets around Bilsham Chapel, the joints between older walls, newer extensions and the roofline need a sealant that can move. Rented homes near Barnham station change hands often, and a dripping gutter joint or loose fascia trim is easy to miss until damp shows inside.
Flansham is about 2 miles north-east of Bognor Regis, in West Sussex. From the centre of Flansham to the outskirts, we cover gutter sealing for every kind of property, from flats and houses to offices and hotels. Our area takes in 371 places across West Sussex. Our Portsmouth page covers work nearby.
Postcode districts we cover here for gutter sealing: PO22. Neighbouring places we cover for gutter sealing include Bilsham (1 mile east), Lidsey (2 miles north-west), Shripney (2 miles west), Yapton (2 miles north-east) and Barnham (2 miles north). Further out, we also cover Worthing (11 miles east), Chichester (7 miles west), Selsey (8 miles south-west), Littlehampton (5 miles east), Lancing (14 miles east) and Emsworth (13 miles west).
Around Flansham
We work in homes and buildings around Felpham Community College and The Brooks Local Nature Reserve and the streets around them. The closest station to Flansham is Barnham station, roughly 1.9 miles north of the centre. Well-known places in the area include Tote Copse Castle (3.1 miles north-west) and Bognor Regis Museum (2.3 miles south-west).
What sealant work cannot fix
A few problems are outside what sealant work can do:
- Gutters that have dropped or pulled away
- Problems with the roof covering
- Water backing up from a blocked pipe
If in doubt, ring 0345 464 0079 or email us and we will say what we think.
What we seal
- Soffit joints
- Roofline trims
- uPVC fascias
- Gutter joints
- Gutter end caps
- Garage door frames
FAQs for Flansham
Is gutter sealing in a coastal place like Flansham any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Will you come out to Flansham?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses, and we’re fully insured.
Where is Mr Mastic based?
We’re a Crawley-based firm. We work across South East England, London and Scotland.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
Can you reach high gutters?
Low-level work is easiest. For anything higher, we will confirm what access is needed once we know more.
Can you match the sealant colour?
In most cases you can choose. We’ll tell you which colours the right product comes in.
Will you leave a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Nearby places to Flansham
More services for Flansham
What happens on the day
At the end, we look at the finished work together and tell you how long to leave it. The visit itself normally takes anything from an hour or two to a few hours, depending on the size of the job. For a village or hamlet like Flansham, 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.
- First we agree which joints need sealing.
- Each joint is cleaned and any old sealant removed.
- The joints are dried.
- The sealant is applied and finished.
- The joints are checked once sealed.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Mention any leaks or damp you’ve noticed
- Let us know about stairs, lifts or work at height
How to get a quote
If you’re in Flansham and need gutter sealing, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
Advice
Leave it or put it right?
Replacing fascias because of open joints is usually unnecessary. Sealing the joints tidies them up as long as the boards are in good condition. Around Flansham, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first and send you a clear quote before work begins.
Why choose Mr Mastic in Flansham
- Any old sealant cut out fully, not covered over
- Sanitary silicone with an anti-fungal additive in wet areas
- A choice of colours where the product allows
- ARBOMaster approved applicator
Take a look at how sealant jobs are priced or what customers say.
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Do you need gutter sealing in Flansham?
Sealant laid on a wet or dirty joint fails early. Some quick repairs peel off within a season or two for this reason.
Most people get in touch when they notice something like this:
- Stop ends leaking at the end of a run
- Cracked sealant along roofline trims
- Earlier gutter repairs that have peeled off
- Garage door frames letting rain in
For site and facilities teams at buildings such as Bishop Tufnell CofE Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Before you book anyone
- Whether all the old sealant comes out first
- How much experience the applicator has
- The length of the guarantee
- Which sealant they’ll use, and why