Greater London · England
Hither Green Gutter Sealing
Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims for homes and businesses in Hither Green and across Greater London. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Quick sealant fixes on gutters that didn’t last
- Gaps along fascia and soffit joints
- Wet patches on the wall under a gutter joint
Why act early in Hither Green
Water from a leaking joint hits the same spot every time. Over time that can stain brickwork, mark render and encourage damp, so it’s worth sealing early. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler.
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
Why choose Mr Mastic in Hither Green
- Domestic, commercial and hotel work
- We agree the colour with you first
- Fully insured
- We leave the area clean and tidy
Take a look at how sealant jobs are priced or customer reviews.
Gutter sealing for homes and businesses in Hither Green
Sealant only bonds to a clean, dry joint. So the old sealant and grime come out first, then dry the joint before sealing. If you’re dealing with garage door frames letting rain in and earlier gutter repairs that have peeled off, we can help, on garage door frames, uPVC fascias and gutter joints alike.
In London terraces and converted houses, gutters and walls are often shared with the house next door, so a leaking gutter joint or failed wall joint can affect more than one home. For a flat in Hither Green, check the lease for who looks after the outside.
Every job comes with a one-year guarantee, wherever you are in Greater London.
- Where
- Hither Green (SE13, SE12, SE6)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How it works
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours, depending on the number of joints and the access, and the area is left clean. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Hither Green. A visitor permit or a nearby bay makes the visit run more smoothly.
- We start by tracing the leak and checking the gutter itself is sound.
- We clean out the joint and take out the old sealant.
- The area is dried so the sealant can bond.
- We seal the joint with a sealant made for gutters and outdoor use.
- We look along the gutter and clear debris around the joints.
Getting ready for the visit
- Mention any parking rules near the property
- Tell us about any water getting in
- Let us know about stairs, lifts or work at height
Get a quote
To get 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 any work starts.
Related advice
What gutter sealing looks like in Hither Green
Historic houses like Queen's House (about 2 miles north) are a reminder that the area around Hither Green has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Church of St Swithun include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep. For landlords with property near Hither Green station, a dripping gutter joint or loose fascia trim is easy to miss until damp shows inside.
Hither Green is about 2 miles south-east of New Cross, in Greater London. Every kind of property in Hither Green can book us for gutter sealing, old or new, large or small. Every job comes with our 12-month guarantee. Our Greater London coverage runs to 764 places, Hither Green among them.
Every address in SE13, SE12 and SE6 is within our area for gutter sealing, from the main roads to the quietest streets. Whether your property is on Old Road, Manor Lane and Pascoe Road or a nearby road, we can help. Nearby, we also carry out gutter sealing in Lee (1 mile east), Ladywell (1 mile west), Lewisham (1 mile north-west), Catford (1 mile south-west) and Horn Park (1 mile east). We also work in nearby towns such as London (5 miles north-west), City of Westminster (8 miles north-west), Marylebone (8 miles north-west), Kensington (9 miles west), St Pancras (7 miles north-west) and Shoreditch (6 miles north-west).
Landmarks near Hither Green
Around Hither Green, our work takes us to homes and buildings near International Academy of Greenwich, The Edmund Halley pub and Manor House Gardens and the streets around them. Hither Green has its own railway station: Hither Green station. Other landmarks nearby include Lewisham Shopping Centre (0.9 miles north-west) and University Hospital Lewisham (0.7 miles west). The countryside around Hither Green includes Brookmill Road Local Nature Reserve and Summer Hill.
Common problems we fix in Hither Green
Roofline sealant ages in sun and rain. It goes hard, cracks and pulls away after some years.
Signs it’s time to call us include:
- Rain getting in around a garage door
- Drips from gutter joints and end caps
- Wet patches on the wall under a gutter joint
- End caps that drip every time it rains
Schools such as Brindishe Manor School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
What to look for in a quote
- Whether VAT is included
- How the surfaces are prepared before sealing
- When the joint can take water or movement
- What insurance they hold
For landlords and businesses
For anyone letting property in or around Hither Green, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
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.
What else we do in Hither Green
How we quote for gutter sealing
Jobs vary more than people expect. What affects the quote:
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
- The product the joint needs
- Whether there’s mould to deal with
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.
What we need to know
When you contact us, these details help:
- How we’d reach the joints
- Where the job is, and your postcode
- Photos by email, if that’s easy
- What the problem is, such as mould, gaps, leaks or cracking
Asking for a quote is easy: let us know what needs doing and where. A few photos by email make the job easier to understand.
Your questions about gutter sealing in Hither Green
Is parking an issue for gutter sealing in Hither Green?
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 help a landlord with a rental near Hither Green station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will send you a clear quote.
Is it possible to stop a gutter joint dripping with sealant?
Most of the time. A sagging or cracked gutter needs more than sealant, and we will tell you.
When is the sealant fully cured?
It depends on the product and the temperature. Before we leave, we’ll tell you the cure time.
Do you work in Hither Green?
Yes. We cover Hither Green. To book, phone 0345 464 0079 or drop us an email.
What do you need from me for a quote?
Let us know what needs doing and where, plus photos if you have them. We will ask anything else we need to know.
Should I try DIY first?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. Our tips:
- Rest ladders on the wall, not the gutter
- Look for streaks or damp on the wall below gutters
- Look at the gutters while it’s raining
- Keep the gutters clear of debris
Give the sealant the cure time we tell you and avoid disturbing it.
A drip from a gutter joint will not stop on its own. The same spot gets soaked every time it rains and that can cause damp inside.