Hampshire · England

Gutter Sealing in Cadnam

Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims for Cadnam, backed by a one-year guarantee. Ask us for a quote.

  • Rain getting in around a garage door
  • Internal damp traced to a gutter joint
  • Stop ends leaking at the end of a run

Trusted gutter sealing in Cadnam

Surface by surface

uPVC fascias

Fascia board joints can open up. They’re sealed tidily with a matching sealant where possible.

Gutter joints

Joints between gutter lengths are the most common leak point. They’re cleaned out, dried and resealed.

Gutter sealing for homes and businesses in Cadnam

Across Cadnam, we reseal gutter joints, end caps and roofline trims. Low-level work is straightforward and if it’s higher up, let us know and we’ll confirm what access is needed. Common call-outs are for gaps along fascia and soffit joints and old sealant on roofline trims that has split, across roofline trims, soffit joints and gutter end caps.

External sealant needs dry, clean surfaces, so work around Cadnam is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.

A one-year guarantee comes with the work, just as it does everywhere we cover.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Location
Cadnam (SO40)
Region
Hampshire
Guarantee
One year on every job
Quotes
A clear price before any work starts
Telephone
0345 464 0079
Last updated
26 October 2026

Why it’s worth doing now in Cadnam

A dripping stop end can soak the wall right through the wet months. It’s a small job to put right compared with treating damp later. Older cottages and farmhouses around Cadnam can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

What it costs depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before we start, so you know where you stand.

Why book with us

  • ARBOMaster approved applicator
  • 180+ five-star Google reviews
  • You choose the colour before work begins
  • Sealant colour chosen to suit

Read how sealant jobs are priced or our reviews.

Looking after it afterwards

Once the sealant has cured, a few habits help it last:

  • Look at the gutters while it’s raining
  • Get leaks sealed before the wet months
  • Keep an eye out for wet patches below a joint
  • Have sagging gutters refixed early

Check the joints after heavy rain now and then. Drips are easiest to spot while it’s raining.

If an end cap is dripping, deal with it before winter. Water down the wall all winter can cause damp.

What happens on the day

We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from an hour or two to a few hours and we leave things clean and tidy. Somewhere as small as Cadnam, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. First we agree which joints need sealing.
  2. Each joint is cleaned and any old sealant removed.
  3. The joints are dried.
  4. The sealant is applied and finished.
  5. The joints are checked once sealed.

How to prepare

  • Let us know about stairs, lifts or work at height
  • Let us know about earlier repairs to the joints
  • Keep pets and children clear of the area while we work

How to get a quote

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

Ask for a quote

Read more

When to call us in Cadnam

When a gutter sags, its joints open. Resealing a sagging joint won’t last, so the gutter needs refixing first.

It’s worth asking for a quote if you see:

  • Water running down the wall below the gutter
  • Open joints in fascias and soffits
  • Old gutter sealant that has let go
  • Damp patches inside below a leaking gutter

Managing a site like Bartley Church of England Junior School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.

Comparing quotes

  • Who does the work, and how experienced they are
  • What guarantee comes with the work
  • Whether all the old sealant comes out first
  • Whether they’re fully insured

How to choose a mastic man

DIY versus a professional finish

Sealing over old silicone is the commonest DIY error. 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.

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.

FAQs for Cadnam

I let a flat near Ashurst New Forest station. Can you help?

Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.

Is Cadnam in your area for gutter sealing?

Yes, Cadnam is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear price.

Can you match the sealant colour?

We will suggest a colour to suit the surroundings. The product needed can limit the range.

Can you do several jobs on one visit?

Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.

Is it possible to stop a gutter joint dripping with sealant?

In most cases, yes. A sagging or cracked gutter needs more than sealant and we’ll say so.

Do I need to be at home?

That depends on where the joints are. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.

Can you seal fascia and soffit joints?

We do. We seal the joints, not replace the boards, and if a board is damaged, we’ll tell you.

Do you have insurance?

Yes, we are fully insured for every job we do.

What we cannot put right

We will always be straight with you, so here’s what new sealant will not do:

  • Water backing up from a blocked pipe
  • Problems with the roof covering
  • Gutters that have dropped or pulled away

If in doubt, call 0345 464 0079 or drop us an email and we will say what we think before you book.

Joints and surfaces we work on

  • Gutter joints
  • Soffit joints
  • Garage door frames
  • Gutter end caps
  • Roofline trims
  • uPVC fascias

Cadnam buildings and the weather

With historic houses such as Landford Manor (about 4.6 miles north-west) nearby, there’s older building stock in the area around Cadnam 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

If you let a flat or house near Ashurst New Forest station, leaking gutter joints on a rental are best caught before they stain the walls. Homes close to Church of St Mary include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.

Cadnam is about 3 miles west of Totton, in Hampshire. If you need gutter sealing in Cadnam, please call 0345 464 0079 or email us for a quick quote. We cover Hampshire from our Crawley base. We cover 683 towns and villages across Hampshire, large and small. For nearby work, see our Southampton page, about 8 miles away.

All of SO40 is within our area for gutter sealing, from the main roads to the quietest streets. That includes homes and businesses on Old Lyndhurst Road, White Hart Lane and Southampton Road. Other places close to Cadnam include Wittensford (1 mile west), Bartley (1 mile south-east), Copythorne (1 mile north-east), Newbridge (1 mile north) and Winsor (1 mile east). Within a short drive, we also cover Winchester (15 miles north-east), Eastleigh (11 miles east), Totton (3 miles east), Chandler's Ford (9 miles north-east), Hedge End (12 miles east) and Lymington (11 miles south).

Local landmarks in Cadnam

In Cadnam, that means homes and buildings near The White Hart pub and the streets around them. For rail, the closest station is Ashurst New Forest station, roughly 3.1 miles south-east. A little further out are Tatchbury Mount Hospital (2.2 miles east) and National Dairy Museum (3.6 miles south-east). Open spaces near Cadnam include Copythorne Common.

Map of Cadnam © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job