Greater London · England
St Paul's Cray Gutter Sealing
Gutter and fascia joints in St Paul's Cray need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Open joints in fascias and soffits
- Leaking gutter joints and stop ends
- Old gutter sealant that has let go
Gutter sealing for homes and businesses in St Paul's Cray
We work across St Paul's Cray on leaking gutter joints and roofline trims. Single-storey and low gutters are simple to reach, and for higher work, tell us about access and we’ll confirm what’s needed. We work on garage door frames, uPVC fascias and gutter end caps, and people most often call us about failed sealant on a garage door frame and trim joints where the sealant has failed.
London’s terraces and conversions often share walls, gutters and downpipes with their neighbours, so one failed joint can cause damp for more than one household. For a flat in St Paul's Cray, check the lease for who looks after the outside.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Place
- St Paul's Cray (BR5, BR7)
- Wider area
- Greater London
- Cover
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
A careful DIYer can reseal a simple joint, 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.
What happens on the day
There’s no need to move everything out, just the space around the work. Everything nearby is protected, and the work takes an hour or two for a few joints, longer for a full run for a typical job. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in St Paul's Cray. It helps if you can point us to a visitor permit or a bay close to the door.
- First we agree which joints need sealing.
- We clean out each joint.
- The joints are dried.
- We apply exterior or gutter sealant and finish it neatly.
- We check our work before we leave.
How to prepare
- Let us know about stairs, lifts or work at height
- Tell us about any previous sealing or DIY attempts
- Let us know if you’ve seen damp or leaks
Getting a quote
Getting a quote is simple: let us know what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we’ll come back to you with a quote.
Read more
What sealant work cannot fix
A few problems are outside what sealant work can do:
- Rotten or damaged fascia boards
- A gutter length that has split
- Brackets that have snapped or loosened
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly.
Where we work in St Paul's Cray
- Gutter end caps
- uPVC fascias
- Gutter joints
- Roofline trims
- Garage door frames
- Soffit joints
Towns and villages near St Paul's Cray
Other services in St Paul's Cray
When to call us in St Paul's Cray
Gutter joints depend on seals that wear out. Temperature changes make gutters move, and old seals crack or slip.
Any of these means the joints need attention:
- Dripping gutter ends
- Rain getting in around a garage door
- Damp patches inside below a leaking gutter
- Drips from gutter joints and end caps
Homes close to St Barnabas include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Comparing quotes
- How the joint is cleaned and prepared
- Are they insured?
- Is the old sealant removed completely?
- How the colour is chosen
Questions from St Paul's Cray
Do you cover St Paul's Cray for gutter sealing?
Yes. We work across London and the South East, and St Paul's Cray is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Can parking be tricky for a visit in St Paul's Cray?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
Can you fit new guttering?
We do not replace gutters or fascias. We’ll tell you if the gutter needs replacing.
What does gutter sealing cost?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before we start.
Do you clean gutters?
We clear what’s around the joints we work on. A full clean of the gutters is not part of it.
What guarantee comes with the job?
All our work carries a one-year guarantee, and we are fully insured.
Where is Mr Mastic based?
We are based in Crawley, and we cover South East England, London and all of Scotland.
Can you seal over the old sealant?
No. The old sealant always comes out first.
Gutter sealing in St Paul's Cray: local notes
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Bromley Palace (about 3.7 miles west) nearby, there’s older building stock in the area around St Paul's Cray as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
For landlords with property near St Mary Cray station, a dripping gutter joint or loose fascia trim is easy to miss until damp shows inside. St Paul's Cray is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
St Paul's Cray is about 1 mile north of Orpington, in Greater London. Our applicators cover gutter sealing for homes and businesses in St Paul's Cray and the surrounding area, as part of our work across Greater London. St Paul's Cray is one of 764 places in Greater London we cover for gutter sealing. We also work in London, about 11 miles from St Paul's Cray.
Postcode districts we cover here for gutter sealing: BR5 and BR7. That includes homes and businesses on Main Road, Murray Road and Rushet Road and the roads around them. We also cover St Mary Cray (1 mile south), Poverest (1 mile south), Derry Downs (1 mile south), Orpington (1 mile south) and Kevington (2 miles south-east). Larger places within reach include London (11 miles north-west), City of Westminster (14 miles north-west), Marylebone (14 miles north-west), Kensington (15 miles north-west), St Pancras (13 miles north-west) and Shoreditch (12 miles north-west).
Around St Paul's Cray
Around St Paul's Cray, our work takes us to homes and buildings near Kemnal Technology College, The Blue Anchor Public House and Walsingham School, among other places. There’s a railway station in St Paul's Cray itself: St Mary Cray station. Other landmarks nearby include Lullingstone Castle (4.8 miles south-east) and London Borough of Bromley Museum (1.5 miles south). Green spaces nearby include The Warren and Summer Hill.
Landlords, agents and businesses in St Paul's Cray
We work for landlords and letting agents as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Aftercare tips
Good habits help new joints last longer. A few tips:
- Look at the gutters while it’s raining
- Have sagging gutters refixed early
- Clean out the gutters once or twice a year
- Do not lean ladders against the gutter itself
Give the sealant the cure time we tell you and avoid disturbing it.
Leaking gutter joints get worse over time. Water keeps hitting the same part of the wall and that can cause damp inside.
Surface by surface
Garage door frames
A fresh seal around the frame stops rain getting in.
Gutter joints
When a joint drips, the gutter is often still sound. Sealing the joint often stops it.