Medway · England
Capstone Gutter Sealing
Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims for Capstone, backed by a 12-month guarantee. Call for a quick quote.
- Rain getting in around a garage door
- Leaking gutter joints and stop ends
- Damp patches inside below a leaking gutter
Should I try it myself first?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
A DIY attempt does not rule out a professional job. We cut it out and start again.
How we handle gutter sealing in Capstone
Gaps along uPVC fascias and soffits look untidy and can let in water and draughts. We seal them in a colour to suit where one is available. We work on garage door frames, roofline trims and soffit joints, and common reasons people get in touch are water running down the wall below the gutter and stop ends leaking at the end of a run.
Outside joints can only be sealed when they’re dry, so work in Capstone is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Place
- Capstone (ME7)
- Region
- Medway
- Guarantee
- One year on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Other services in Capstone
Outside joints around Capstone
Capstone is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on gutter, fascia and roofline joints, especially on the side facing the sea. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For an older house near a landmark such as All Saints Church, older walls, gutters and the joints where extensions meet them need a flexible sealant. For site and facilities teams at buildings such as Hempstead Infant School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Capstone is about 1 mile south-west of Gillingham, in Medway. Every kind of property in Capstone is covered for gutter sealing. Every job comes with our 12-month guarantee. Our Medway coverage runs to 68 places, Capstone among them. There’s also a page for Chelmsford, about 26 miles away.
Postcode districts we cover here for gutter sealing: ME7. Neighbouring places we cover for gutter sealing include Darland (1 mile north), Hale (1 mile north-west), Hempstead (1 mile south-east), Gillingham (1 mile north-east) and Chatham (1 mile west). We also work in nearby towns such as Rochester (4 miles north-west), Strood (4 miles north-west), Hoo St Werburgh (5 miles north), Rochester Riverside (3 miles north-west), Peters Village (4 miles west) and Brompton (3 miles north-west).
Around Capstone
Typical jobs here are in homes near Chatham Grammar School for Girls, The Star pub and The Robert Napier School. For rail, the closest station is Gillingham (Kent) station, about 2 miles north of the centre. Well-known places in the area include Medway Maritime Hospital (1.7 miles north-west) and Pentagon Shopping Centre (2.3 miles north-west). The countryside around Capstone includes Burham Down and Blue Bell Hill.
Your questions about gutter sealing in Capstone
Is gutter sealing in a coastal place like Capstone any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Do you work for landlords with property near Gillingham (Kent) station?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We will tell you what we’re using and why.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover Capstone, along with the rest of our area.
Are you fully insured?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
Do you offer different sealant colours?
Usually, yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before work begins.
Is gutter cleaning part of the job?
We clear debris near the joints because the joint must be clean. Cleaning the whole run is a separate job.
Can you seal fascia and soffit joints?
Yes, often alongside gutter joints. Each joint is cleaned and sealed.
What we cannot put right
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- A gutter length that has split
- Sagging gutters or broken brackets
- Boards that have decayed or split
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Surfaces we seal
- Gutter joints
- Gutter end caps
- Roofline trims
- Soffit joints
- Garage door frames
- uPVC fascias
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
We work for landlords and agents as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
How it works
There is not much for you to do on the day. Point us to the joints and we’ll get on with it. The job generally takes an hour or two for a few joints, longer for a full run, including the tidy-up. Somewhere as small as Capstone, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we agree which joints need sealing.
- We clean out each joint.
- We make sure everything is dry.
- The sealant is applied and finished.
- The joints are checked once sealed.
Preparing for the visit
- Clear the area around the work
- Try not to wet indoor joints just before the visit
- 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, ring 0345 464 0079 or send us an email.
Read more
What happens if it’s left?
You do not need new fascias just because the joints have opened. A neat seal closes the gaps if the boards are sound. Where a wall is exposed, as many are in small places like Capstone, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Doing several joints on one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
Why book with us
- Fully insured
- Approved under the ARBOMaster scheme
- We never seal over old sealant
- 180+ five-star Google reviews
Take a look at what affects the cost and our reviews.
Looking after it afterwards
Aftercare is simple:
- Look along the fascias for open joints
- Don’t leave a sagging gutter
- Get leaks sealed before the wet months
- Clear leaves and moss from the gutters
If a gutter starts to sag, get the brackets looked at. Movement will pull the joints open again.
A drip from a gutter joint will not stop on its own. The same spot gets soaked every time it rains, which can lead to staining and damp.
Common problems we fix in Capstone
Gutter joints depend on seals that wear out. Temperature changes make gutters move, and old seals crack or slip.
Signs it’s time to call us include:
- Damp patches inside below a leaking gutter
- Water dripping where gutter sections meet
- Earlier gutter repairs that have peeled off
- End caps that drip every time it rains
Letting a property close to Gillingham (Kent) station? Then a dripping gutter joint or loose fascia trim is easy to miss until damp shows inside.
What to look for in a quote
- Whether VAT is included
- Whether all the old sealant comes out first
- Which sealant they’ll use, and why
- Whether they’re fully insured