Hampshire · England
Gutter, fascia & soffit sealing in St Leonards, Hampshire
Problem with your gutter and fascia joints in St Leonards? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Internal damp traced to a gutter joint
- Drips from gutter joints and end caps
- End caps that drip every time it rains
Gutter sealing for homes and businesses in St Leonards
A drip at a gutter joint is easy to ignore, but each shower sends water to the same place. Resealing it is a small job if the gutter is otherwise in good order. We work on garage door frames, roofline trims and soffit joints, and people most often call us about drips from gutter joints and end caps and quick sealant fixes on gutters that didn’t last.
Homes around St Leonards range from older cottages to newer houses, with walls and rooflines of every type. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
All of our work is guaranteed for twelve months.

- Location
- St Leonards (BH24)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
When something else is needed
Sealant is not the answer to every problem, and we will tell you before work begins. Sealant won’t put right:
- Guttering that needs replacing
- Boards that have decayed or split
- Sagging gutters or broken brackets
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.
Joints and surfaces we work on
- Gutter end caps
- Roofline trims
- Garage door frames
- Soffit joints
- uPVC fascias
- Gutter joints
Towns and villages near St Leonards
What else we do in St Leonards
Surface by surface
Roofline trims
Roofline trims rely on sealant at their joints. Split sealant lets water in.
Soffit joints
Soffits sit under the eaves, where joints can open up. They’re sealed to tidy the line.
Questions from St Leonards
Is St Leonards in your area for gutter sealing?
Yes. We work across London and the South East, and St Leonards is part of that. You can ring 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear price.
Is St Leonards within the area you cover?
Yes. St Leonards 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.
Will the old sealant be removed?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Where is Mr Mastic based?
We work from Crawley. We cover St Leonards and the rest of Hampshire, along with the rest of our area.
Is gutter cleaning part of the job?
Only around the joints we seal because the joint must be clean. A full gutter clean is a separate job.
Do you install new fascias or gutters?
No, we reseal joints and trims. Replacement needs a gutter installer or roofer.
How long does the job take?
Typically it takes anything from an hour or two to a few hours. Larger jobs naturally take longer.
Landlords, agents and businesses in St Leonards
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Should I try it myself first?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Signs you need gutter sealing in St Leonards
End caps get knocked or pushed by water. Once the seal behind them fails, they drip.
Look out for these signs:
- Streaks down the brickwork from a leaking joint
- Dripping gutter ends
- Gaps along fascia and soffit joints
- Quick sealant fixes on gutters that didn’t last
Schools such as St Ives Primary & Nursery School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
Comparing quotes
- When the joint can take water or movement
- Which sealant they’ll use, and why
- What insurance they hold
- Whether VAT is included
St Leonards buildings and the weather
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to All Saints include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
St Leonards is in Hampshire. Jobs in St Leonards get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Our Hampshire coverage runs to 683 places, St Leonards among them. For nearby work, see our Southampton page.
Postcode districts we cover here for gutter sealing: BH24. That includes homes and businesses on Cedar Avenue, Birch Close and Malmesbury Road. We also cover Ashley Heath (1 mile north), St Ives (1 mile north-east), Matchams (1 mile south-east) and Avon Castle (2 miles east). Further out, we also cover Lymington (14 miles east), New Milton (10 miles south-east), Ringwood (3 miles north-east), Barton on Sea (10 miles south-east), Ashley (10 miles south-east) and Milford on Sea (13 miles south-east).
What’s near St Leonards
Around St Leonards, our work takes us to homes and buildings near Avon Heath Country Park. A little further out are St Leonard's Hospital (0.9 miles south-west) and Stapehill Abbey (3.9 miles south-west). Green spaces nearby include Linbrook Lake and Blashford Lakes.
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours, depending on the number of joints and the access and we leave things clean and tidy. In a smaller place like St Leonards, 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.
- We look at the gutters, fascias and trims and agree the joints to seal.
- We clean out each joint.
- The joints are dried.
- The sealant is applied and finished.
- We check our work before we leave.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Tell us if parking is tricky
- Tell us about any previous sealing or DIY attempts
Ask for a quote
To get a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
Read more
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- Rest ladders on the wall, not the gutter
- Deal with a drip before winter
- Watch the wall under the gutters for staining
- Clean out the gutters once or twice a year
Leave the new sealant to cure as we advise and avoid disturbing it.
If an end cap is dripping, deal with it before winter. A winter of drips can lead to damp patches inside.
