Hampshire · England
Clayhall Gutter Sealing
Specialist gutter sealing for Clayhall: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- End caps that drip every time it rains
- Garage door frames letting rain in
- Gaps along fascia and soffit joints
How we handle gutter sealing in Clayhall
Open fascia and soffit joints spoil the roofline and can let weather in. They’re sealed in a matching colour where possible. If you’re dealing with water running down the wall below the gutter and open joints in fascias and soffits, we can put it right, whatever the surface.
Around Clayhall, garages, outbuildings and extensions all add to the joints on the outside of a home. Leaks normally start at a gutter end, a garage door frame or where an extension meets the house.
A one-year guarantee comes as standard, so you’re covered after we have gone.
- Place
- Clayhall (PO12)
- Region
- Hampshire
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Sort out a dripping joint early
- Check fascia and soffit joints for gaps
- Clean out the gutters once or twice a year
- Check that water runs out of the downpipes
Look at fascia and trim joints when you are checking the gutters. Splits are easier to seal early.
Leaking gutter joints get worse over time. Water keeps hitting the same part of the wall, which can lead to staining and damp.
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. Around Clayhall, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
What you pay reflects the work, not guesswork. That’s why we ask about the job first and agree the price before starting.
Why choose Mr Mastic in Clayhall
- Domestic, commercial and hotel work
- 180+ five-star Google reviews
- Neat joints and a tidy finish
- ARBOMaster approved applicator
Walls and rooflines in Clayhall
Clayhall is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on gutter, fascia and roofline joints, which can dry out and crack sooner where a building faces the weather. 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.
If you let a flat or house near Portsmouth Harbour station, leaking gutter joints on a rental are best caught before they stain the walls. Managing a site like Haselworth Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. In the older streets around St Francis, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Clayhall is about 2 miles south-east of Gosport, in Hampshire. Jobs in Clayhall get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. 683 places in Hampshire are on our list, from the larger towns to small villages.
We cover every part of PO12 for gutter sealing and the streets around it. That includes homes and businesses on The Lane, Old Road and Fort Road and the roads around them. Neighbouring places we cover for gutter sealing include Haslar (1 mile south-east), Alverstoke (1 mile west), Portsmouth Point (1 mile north-east), Privett (1 mile north-west) and Portsea (2 miles north-east). We also work in nearby towns such as Havant (8 miles north-east), Fareham (6 miles north-west), Horndean (10 miles north-east), Hedge End (12 miles north-west), Waterlooville (8 miles north-east) and Purbrook (7 miles north-east).
Around Clayhall
Locally, jobs take us to homes and businesses close to Bay House School, The Fighting Cocks pub and St Vincent College, among other places. The nearest railway station is Portsmouth Harbour station, roughly 1.4 miles north-east. Other landmarks nearby include Gosport War Memorial Hospital (1 mile north-west) and Search (0.9 miles north). Not far away are West of the River Alver.
Clayhall: your questions answered
Will you come out to Clayhall?
Yes. Clayhall is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Portsmouth Harbour station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Will you clear out my gutters?
The joints we seal are cleaned out and any debris nearby is cleared. Cleaning the whole run is a different job.
Do you work for hotels and businesses?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Is it OK to seal over old sealant?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
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 will explain our choice.
What information do you need?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Surface by surface
Gutter end caps
End caps take the pressure of water running along the gutter. A failed seal makes them leak.
uPVC fascias
We seal fascia joints, not replace the boards. Damaged boards need replacing by an installer.
Landlord and commercial work in Clayhall
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
We work for letting agents and landlords as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Places near Clayhall
More services for Clayhall
The process
You do not need to clear the whole room or building before we come, just the space around the work. We protect the rest, and the work takes a few hours, depending on the number of joints and the access in most cases. In a smaller place like Clayhall, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First we trace the drip and check the gutter isn’t damaged.
- The old sealant and dirt are cleaned out of the joint.
- We dry the joint so the new sealant can bond.
- A gutter sealant is applied to the joint.
- The gutter is checked and debris around the joints cleared.
Before we arrive
- Tell us about any water getting in
- For indoor joints, keep the area dry beforehand if you can
- Keep pets and children clear of the area while we work
Get a quote
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or email us.
Related advice
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
How we quote for gutter sealing
There’s no set price list. The quote depends on:
- The product the joint needs
- Any mould that needs treating
- The old material and how stubborn it is
- How many areas need sealing
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What we need to know
You don’t need to know the technical terms. It helps if you can tell us:
- Any access issues, like height or stairs
- What the problem is, such as mould, gaps, leaks or cracking
- If it’s domestic, commercial or a hotel
- The rough size of the job
Want a quote for gutter sealing? Please call 0345 464 0079 or email us with a few details. We will explain what we’d do and give you a clear quote before we start.