West Sussex · England

Gutter Sealing in Merston

Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims for homes and businesses in Merston and across West Sussex. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Earlier gutter repairs that have peeled off
  • Open joints in fascias and soffits
  • Trim joints where the sealant has failed

Trusted gutter sealing in Merston

What affects the quote in Merston

The quote reflects the job in front of us. We look at:

  • The number of rooms or windows
  • The size of the job
  • The old material and how stubborn it is
  • The product the joint needs

A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, call 0345 464 0079 or email us for an honest opinion and a quote.

Asking for a quote

A few details help us give you an accurate quote. When you get in contact, it helps to mention:

  • Where the property is
  • Roughly how big the job is
  • How we’d reach the joints
  • The type of property

For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work before giving you a price.

Gutter sealing in Merston, done properly

Sealant only bonds to a clean, dry joint. That’s why we take out the old sealant and dirt first, then dry the joint before sealing. If you’re dealing with cracked sealant along roofline trims and failed sealant on a garage door frame, we can put it right, on uPVC fascias, gutter end caps and roofline trims alike.

Outside joints can only be sealed when they’re dry, so work in Merston is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.

Our work is backed for twelve months, in Merston and everywhere else we cover.

Place
Merston (PO20)
Wider area
West Sussex
Guarantee
A year, on every job
Quotes
A clear price before any work starts
Telephone
0345 464 0079
Updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

Keeping the joints in good condition

So the new joints stay in good condition:

  • Deal with a drip before winter
  • Keep downpipes clear
  • Glance at the soffit joints now and then
  • Watch for drips in a downpour

Make sure downpipes aren’t blocked so the gutter can drain. Blockages push water back along the gutter.

The sooner a gutter leak is sealed, the less water reaches the wall. We’ll let you know if the gutter needs more than sealant.

Can I do it myself?

If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so just mention it when you contact us.

Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Common questions in Merston

Is Merston within the area you cover?

Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Can you help a landlord with a rental near Chichester station?

Yes. We work for landlords and letting agents as well as homeowners. You can phone 0345 464 0079 or email us with the details for a clear quote.

Can new sealant go over the old?

No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. We remove it all first.

Do you seal gaps in fascias and soffits?

Yes. Our work is the joints and we’ll let you know if a board has failed.

Can you reach high gutters?

That depends on the building. Tell us the height and what’s around the gutter when you call 0345 464 0079 or email us.

Which products do you use?

Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we’re using.

Should I try DIY first?

That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.

How long should I leave it?

Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint.

What gutter sealing looks like in Merston

Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Goodwood House (about 3.5 miles north) are a reminder that the area around Merston has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.

Homes close to Church of St Giles include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep. For site and facilities teams at buildings such as North Mundham Primary School, its movement joints, gutters and trims need looking after like any other building’s.

Merston is about 3 miles south-east of Chichester, in West Sussex. We provide gutter sealing to homes and businesses in Merston. Our West Sussex coverage runs to 371 places, Merston among them. There’s also a page for Portsmouth, about 15 miles away.

Postcode districts we cover here for gutter sealing: PO20. Nearby, we also carry out gutter sealing in Runcton (1 mile south-west), Colworth (1 mile east), Oving (1 mile north), North Mundham (1 mile west) and Lagness (1 mile south). Further out, we also cover Worthing (15 miles east), Bognor Regis (3 miles south-east), Chichester (3 miles north-west), Selsey (6 miles south), Littlehampton (9 miles east) and Emsworth (9 miles west).

Near you in Merston

Locally, jobs take us to homes and businesses close to Chichester High School For Girls and the streets around them. For rail, the closest station is Chichester station, roughly 2.3 miles west. Nearby you’ll also find The Chichester City Museum (2.3 miles north-west) and St Richard's Hospital (2.3 miles north-west).

Map of Merston © OpenStreetMap contributors

What happens on the day

All our tools and materials come with us in the van. Once we have agreed what’s being done, we protect the area and start. Most jobs take anything from an hour or two to a few hours. Somewhere as small as Merston, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First we trace the drip and check the gutter isn’t damaged.
  2. We remove the old sealant and clean the joint.
  3. The joint is dried before sealing.
  4. We seal the joint with a sealant made for gutters.
  5. We check the run and clear debris near the joints.

Getting ready for the visit

  • Mention any tricky access
  • Mention any parking rules near the property
  • Mention any leaks or damp you’ve noticed

Ask for a quote

Want a quote for gutter sealing? Please phone 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.

Get a price

Related advice

What we’re called out for in Merston

Gutter joints depend on seals that wear out. Sun and cold make the gutter expand and contract and that movement opens up tired joints.

Signs it’s time to call us include:

  • Leaking gutter joints and stop ends
  • Failed sealant on a garage door frame
  • End caps that drip every time it rains
  • Internal damp traced to a gutter joint

Rented homes near Chichester station change hands often, and 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

  • Which colour the sealant will be
  • How hidden problems are handled
  • Whether all the old sealant comes out first
  • How long the guarantee is

Our hiring checklist

Landlords, agents and businesses in Merston

We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.

Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.

Why act early in Merston

Sealing over a dirty, wet joint is a quick fix that rarely lasts, but it soon lets go. Proper preparation is the difference. In a small place like Merston, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

The cost depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.

Why us?

  • Neat joints and a tidy finish
  • Colour agreed with you before any work starts
  • Full insurance on every job
  • Homes, businesses and hotels

Read what affects the cost or our reviews.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job