East Sussex · England
Gutter, fascia & soffit sealing in Mount Pleasant, East Sussex
Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims for homes and businesses in Mount Pleasant and across East Sussex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Internal damp traced to a gutter joint
- Rain getting in around a garage door
- Dripping gutter ends
Why deal with it now?
Replacing guttering is a much bigger job than sealing joints. If the gutter is sound and the drip is a joint, resealing is the sensible fix. If it has failed, we’ll tell you. Where a wall is exposed, as many are in small places like Mount Pleasant, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why choose Mr Mastic in Mount Pleasant
- Full insurance on every job
- Sealant colour chosen to suit
- An ARBOMaster approved applicator
- Neat joints and a tidy finish
Gutter sealing for homes and businesses in Mount Pleasant
Gutter and fascia replacement is not our trade, and nor is roofing. Sealant fixes joints and it can’t mend broken brackets, split sections or blocked downpipes. We’re often asked to deal with cracked sealant along roofline trims and open joints in fascias and soffits, on garage door frames, roofline trims and soffit joints.
Older homes in small places like Mount Pleasant may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water usually gets in.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.

- Location
- Mount Pleasant (BN8)
- Wider area
- East Sussex
- Cover
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Different surfaces, different methods
Garage door frames
Garage door frames let rain in when their sealant fails. We cut it out and reseal.
Gutter end caps
A leaking end cap sends water straight down the wall. It’s a small job to fix.
Your questions about gutter sealing in Mount Pleasant
Will you come out to Mount Pleasant?
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.
I let a flat near Cooksbridge station. Can you help?
Yes, rental work is part of what we do. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Do you work for hotels and businesses?
Yes. We can plan bigger jobs in stages.
Can you quote for more than one area?
Yes, we can. More than one area can be quoted together.
Can you seal over the old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Where is Mr Mastic based?
We are based in Crawley, and we work across South East England, London and Scotland.
Is gutter cleaning part of the job?
The joints we seal are cleaned out and any debris nearby is cleared. Cleaning the whole run is a different job.
Are you fully insured?
Yes. We are fully insured.
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Also near Mount Pleasant
Also in Mount Pleasant
Walls and rooflines in Mount Pleasant
Historic houses like Glyndebourne (about 4.1 miles south-east) are a reminder that the area around Mount Pleasant 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. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Managing a site like Barcombe Church of England Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Rented homes near Cooksbridge station change hands often, and a dripping gutter joint or loose fascia trim is easy to miss until damp shows inside.
Mount Pleasant is about 4 miles north of Lewes, in East Sussex. Every kind of property in Mount Pleasant is covered for gutter sealing, old or new, large or small. Every job comes with our 12-month guarantee. Our area takes in 289 places across East Sussex, large and small. We also work in Brighton, about 10 miles from Mount Pleasant.
Here we cover the BN8 postcode area for gutter sealing. We also cover Barcombe Cross (1 mile south-west), Barcombe Mills (1 mile south), Barcombe (1 mile south), Isfield (2 miles east) and Upper Wellingham (2 miles south). Within a short drive, we also cover Eastbourne (15 miles south-east), Seaford (11 miles south), Lewes (4 miles south), Hailsham (11 miles south-east), Crowborough (10 miles north-east) and Uckfield (4 miles north-east).
Local landmarks in Mount Pleasant
Locally, jobs take us to homes and businesses close to Royal Oak pub and Chailey School. Mount Pleasant’s nearest station is Cooksbridge station, roughly 2.5 miles south-west. Nearby you will also find Museum of Agricultural Bygones (3.9 miles south-east) and Uckfield Community Hospital (4.2 miles north-east). Green spaces nearby include Offham Hill and Malling Down.
What sealant work can’t fix
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Fascias that need replacing
- Guttering that needs replacing
- Problems with the roof covering
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly.
Where we work in Mount Pleasant
- Roofline trims
- uPVC fascias
- Soffit joints
- Gutter joints
- Gutter end caps
- Garage door frames
What happens on the day
The work is kept neat and contained to the joints we’re treating, so you can carry on as normal. The job normally takes anything from an hour or two to a few hours, and we explain the cure time before we leave. Somewhere as small as Mount Pleasant, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We find where the water is coming from and check the gutter is sound.
- The old sealant and dirt are cleaned out of the joint.
- We dry the joint so the new sealant can bond.
- We seal the joint with a sealant made for gutters.
- The gutter is checked and debris around the joints cleared.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Let us know about parking restrictions
- Where the joints are inside, avoid wetting them before we arrive
Ask for a quote
For a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before we start.
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Looking after it afterwards
So the new joints stay in good condition:
- Rest ladders on the wall, not the gutter
- Watch the wall under the gutters for staining
- Deal with a drip before winter
- Have sagging gutters refixed early
If a gutter starts to sag, get the brackets looked at. Movement will pull the joints open again.
A leaking stop end is best sealed before the wet months. A winter of drips can lead to damp patches.
Common problems we fix in Mount Pleasant
Stop ends take pressure from water running along the gutter. Once the seal behind them fails, they drip.
Most people get in touch after spotting something like this:
- Streaks down the brickwork from a leaking joint
- Quick sealant fixes on gutters that didn’t last
- Garage door frames letting rain in
- Old sealant on roofline trims that has split
Homes close to St Bartholomews include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What to look for in a quote
- The length of the guarantee
- Who turns up on the day
- What insurance they hold
- What product goes in the joint
