West Sussex · England
Gutter Sealing in Crosspost
Our applicators work in Crosspost on sealing leaking gutter joints, end caps, fascias, soffits and roofline trims. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Streaks down the brickwork from a leaking joint
- Leaking gutter joints and stop ends
- Cracked sealant along roofline trims
Walls and rooflines in Crosspost
Historic houses like Ockenden Manor (about 3.1 miles north-east) are a reminder that the area around Crosspost has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Bolney CofE Primary School, larger buildings have long runs of movement joint that eventually need resealing. For an older house near a landmark such as St Mary Magdalene's Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Crosspost is about 4 miles north-west of Burgess Hill, in West Sussex. Every kind of property in Crosspost can book us for gutter sealing, old or new, large or small. The work is guaranteed for a year. Crosspost is one of 371 places in West Sussex we cover for gutter sealing. There’s also a page for Crawley, roughly 9 miles from Crosspost.
Work in RH17 works the same way as everywhere else we cover. We cover properties on Cowfold Road and Chapel Road and the roads around them. We also cover Bolney (1 mile north-east), Twineham Green (1 mile south), Twineham (2 miles south), Wineham (2 miles south-west) and Kent Street (2 miles west). Within a short drive, we also cover Crawley (9 miles north), Horsham (7 miles north-west), Worthing (14 miles south-west), Haywards Heath (5 miles east), Burgess Hill (4 miles south-east) and East Grinstead (13 miles north-east).
What’s near Crosspost
For rail, the closest station is Wivelsfield station, roughly 4.2 miles east of the centre. Nearby you’ll also find The Dene Hospital (2.5 miles south-east) and Cuckfield Museum (3.2 miles north-east). The countryside around Crosspost includes Blunts Wood and Paiges Meadow.
About our gutter sealing in Crosspost
Gutter and fascia replacement is not our trade, and nor is roofing. Sealant fixes joints and it cannot mend broken brackets, split sections or blocked downpipes. We are often asked to deal with cracked sealant along roofline trims and stop ends leaking at the end of a run, across garage door frames, roofline trims and soffit joints.
Outside joints can only be sealed when they’re dry, so work in Crosspost is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

- Where
- Crosspost (RH17)
- Wider area
- West Sussex
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What the job involves on each surface
uPVC fascias
Joints between fascia boards can open over time. We seal them neatly in a suitable colour.
Garage door frames
A fresh seal around the frame stops rain getting in.
Do you need gutter sealing in Crosspost?
Sealant laid on a wet or dirty joint fails early. Rushed repairs often do not last long.
Any of these means the joints need attention:
- Leaking gutter joints and stop ends
- Streaks down the brickwork from a leaking joint
- Damp on an inside wall under a dripping gutter
- Failed sealant on a garage door frame
Letting a property close to Wivelsfield station? Then a gutter joint that drips onto the wall can turn into a damp complaint, so it’s worth checking.
What to look for in a quote
- The length of the guarantee
- Whether they seal over old material or remove it
- Who turns up on the day
- How the joint is cleaned and prepared
Why deal with it now?
New gutters cost far more than a few resealed joints. Where the gutter is in good order and only a joint leaks, resealing is the sensible fix. If it’s broken or sagging, a gutter installer needs to look. In a small place like Crosspost, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, call 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Why us?
- One-year guarantee on every job
- Rated 4.9 stars on Google
- White, clear, grey or another colour, product permitting
- 20+ years of sealant experience
See what affects the cost and our reviews.
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
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.
What we do, step by step
The work is kept neat and contained to the area we’re working on, so you can carry on as normal. Expect the work to take a few hours, depending on the number of joints and the access. For a village or hamlet like Crosspost, the journey is planned in advance: 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.
- We start by tracing the leak and checking the gutter itself is sound.
- The joint or trim is cleaned out and old sealant removed.
- We make sure the joint is dry before sealing.
- We seal the joint with a sealant made for gutters and outdoor use.
- The run is checked and any debris near the joints is cleared.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- Let us know about earlier repairs to the joints
- Keep children and pets away from the work area
Ask for a quote
We quote each job on its own, so the first step is telling us about yours. Just call 0345 464 0079 or send us an email with the details, and photos are welcome.
Advice
Your questions about gutter sealing in Crosspost
Is Crosspost within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you do gutter sealing in Crosspost?
Yes. We work across London and the South East, and Crosspost is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
Can sealant stop a sagging gutter leaking?
Sealing a sagging joint won’t last. The gutter needs refixing by a gutter installer, and we’ll tell you if that’s what we find.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and we’ll quote it together.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used before we leave.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Can I choose the sealant colour?
Yes. White, clear and grey are common, and other colours are available, and we will agree it with you first.
Can tenants book the work?
Of course. Check with your landlord; we can send the quote to them too.
What affects the quote in Crosspost
Jobs vary more than people expect. The main factors:
- How much there is to do
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
- The type of sealant required
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- Roughly how big the job is
- Pictures of the joints, sent by email
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you are ready, ring 0345 464 0079 or send us an email.
Nearby places to Crosspost
More services for Crosspost
Looking after it afterwards
To keep the joints looking good and working properly:
- Watch for drips in a downpour
- Look for streaks or damp on the wall below gutters
- Check that water runs out of the downpipes
- Look along the fascias for open joints
Give the sealant the cure time we tell you before poking or cleaning near it.
Split sealant on fascias and trims lets water in behind. Sealing it early keeps the boards behind dry.
