Greater London · England
Gutter Sealing in Norwood Green
Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims in Norwood Green, with a one-year guarantee on every job. Call for a quick quote.
- Rain getting in around a garage door
- Leaking gutter joints and stop ends
- Dripping gutter ends
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Gutter sealing in Norwood Green, done properly
Open fascia and soffit joints spoil the roofline and can let weather in. We seal them in a colour to suit where one is available. We work on uPVC fascias, soffit joints and gutter joints, and common reasons people get in touch are internal damp traced to a gutter joint and stop ends leaking at the end of a run.
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. In a converted house in Norwood Green, it’s worth checking who is responsible for the outside before booking.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or email us.
- Where
- Norwood Green (UB2, TW5, TW7)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we are called out for in Norwood Green
Sagging sections pull joints apart. Resealing a sagging joint won’t last so the brackets need attention first.
The problems people normally mention when they call are:
- Failed sealant on a garage door frame
- Water running down the wall below the gutter
- Old gutter sealant that has let go
- Old sealant on roofline trims that has split
If you look after a building such as St Mary's Church of England Primary Norwood Green, larger buildings have long runs of movement joint that eventually need resealing.
What to look for in a quote
- How the surfaces are prepared before sealing
- Who turns up on the day
- Is the old sealant removed completely?
- Whether they’re fully insured
Outside joints around Norwood Green
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Osterley House (about 0.6 miles south-east) are a reminder that the area around Norwood 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.
For an older house near a landmark such as Church of St Mary, an extension built onto an older house moves differently, and the joint between them takes the strain. Norwood Green is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Norwood Green is about 1 mile south-east of Southall, in Greater London. For gutter sealing in and around Norwood Green, it’s easy to get a quote: please call 0345 464 0079 or email us. We are based in Crawley and cover Greater London, Norwood Green included. We cover 764 towns and villages across Greater London, large and small. Our London page covers work nearby, about 12 miles away.
All of UB2, TW5 and TW7 is within our area for gutter sealing, from the main roads to the quietest streets. Local streets include Norwood Road, Stour Avenue and Durham Avenue, and we cover them all. You will find Norwood Green on the M4 and A3005, which makes it straightforward to reach with everything needed for gutter sealing. We also cover the places around Norwood Green: North Hyde (1 mile west), Heston (1 mile south-west), Osterley (1 mile south-east), Spring Grove (1 mile south-east) and Lampton (1 mile south). Larger places within reach include London (12 miles east), City of Westminster (9 miles east), Marylebone (9 miles east), Kensington (7 miles east), St Pancras (11 miles east) and Shoreditch (13 miles east).
Landmarks near Norwood Green
Typical jobs here are in homes near Inwood Park, The Plough Public House and Heston Community School, among other places. For rail, the closest station is Southall station, about 1 mile north-west. Nearby you’ll also find St Bernard's Hospital (1 mile north-east) and Museum of Army Music (2.7 miles south). For a walk, there’s Garden Lake and Castlebar Hill.
Nearby places to Norwood Green
Other services in Norwood Green
Aftercare tips
After the cure time, these simple habits help:
- Deal with a drip before winter
- Rest ladders on the wall, not the gutter
- Make sure downpipes are not blocked
- Look for streaks or damp on the wall below gutters
Look at fascia and trim joints when you’re checking the gutters. Splits are easier to seal early.
Rain getting in round a garage door frame can damage what’s stored inside. Resealing the frame is a quick job while the frame is sound.
Quotes for gutter sealing in Norwood Green
Jobs vary more than people expect. The main factors:
- How many areas need sealing
- The number and length of the joints
- Working hours on commercial sites
- Any mould that needs treating
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What to tell us for a quote
When you call or email, it’s useful to know:
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
- The rough size of the job
- Photos by email, if that is easy
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved.
The process
Before we leave, we go over the finished joints with you. The work normally takes a few hours, depending on the number of joints and the access, depending on the size of the job. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.
- First, we find the drip and check the gutter isn’t cracked or sagging.
- We clean out the joint and take out the old sealant.
- The joint is dried, because sealant will not bond to a wet surface.
- Gutter or exterior sealant is applied and finished.
- We look along the gutter and clear debris around the joints.
Preparing for the visit
- Tell us about any water getting in
- Try not to wet indoor joints just before the visit
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.
Advice
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Guttering that needs replacing
- Water backing up from a blocked pipe
- Rotten or damaged fascia boards
If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Surfaces we seal
- Gutter end caps
- Garage door frames
- Roofline trims
- Soffit joints
- uPVC fascias
- Gutter joints
Landlord and commercial work in Norwood Green
If you manage several properties in or around Norwood Green, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Norwood Green questions
Can parking be tricky for a visit in Norwood Green?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
Do you work for landlords with property near Southall station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.
Do you seal gaps in fascias and soffits?
Yes. Open joints along uPVC fascias and soffits can be sealed in a matching colour.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.
Do you cover Norwood Green?
We do. Norwood Green is part of the area we cover, and the service is the same as everywhere else.
Can you fit new guttering?
That is not something we do. Our work is sealing joints and replacement is a job for an installer.
Where is Mr Mastic based?
Our base is in Crawley, and we cover South East England, London and all of Scotland.