Greater London · England
North Finchley Gutter Sealing
Gutter sealing across North Finchley and nearby, with old sealant always removed completely.
- Streaks down the brickwork from a leaking joint
- Leaking gutter joints and stop ends
- Damp patches inside below a leaking gutter
Gutter sealing for homes and businesses in North Finchley
It’s easy to live with a dripping gutter joint, but the water lands on the same spot every time it rains. Resealing it is a small job if the gutter is otherwise in good order. If you have leaking gutter joints and stop ends and trim joints where the sealant has failed, we can help, whatever the surface.
Modern London flats rely on sealed movement joints and cladding joints. Period houses have different weak points, such as gutter joints, trims and the line where an extension meets the old wall, and both kinds of building are found across London.
Each job carries a 12-month guarantee, whatever its size.
- Place
- North Finchley (N12, N20, N11)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the cost of gutter sealing
Some jobs are bigger than they look, and some smaller. The main factors:
- How many rooms, windows or areas are involved
- Which sealant suits the joint
- Whether there’s mould to deal with
- The old material and how stubborn it is
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins, so you know where you stand.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
To get a quote, ring 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 work begins.
When something else is needed
Sealant isn’t the answer to every problem, and we’ll tell you before we start. Sealant won’t put right:
- Gutters that have dropped or pulled away
- A gutter length that has split
- Leaks from the roof rather than a joint
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
What we seal
- uPVC fascias
- Garage door frames
- Gutter end caps
- Soffit joints
- Roofline trims
- Gutter joints
What happens on the day
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours, depending on the number of joints and the access. In North Finchley, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- First, we find the drip and check the gutter isn’t cracked or sagging.
- Old sealant and dirt are removed from the joint.
- The joint is dried, because sealant will not bond to a wet surface.
- An exterior or gutter sealant is applied to the joint.
- The run is checked and any debris near the joints is cleared.
How to prepare
- On commercial sites, let us know about site rules
- Tell us about any water getting in
- Let us know about stairs, lifts or work at height
Get a quote
Need a quote? Please call 0345 464 0079 or email us and tell us about the job. We will explain what we’d do and give you a clear price before any work starts.
Read more
Different surfaces, different methods
uPVC fascias
Our work is the joints, not new fascias. Damaged boards need replacing by an installer.
Gutter end caps
We seal end caps from the inside where we can reach once clean and dry.
Nearby places to North Finchley
Other services in North Finchley
Questions from North Finchley
Is parking an issue for gutter sealing in North Finchley?
Parking in North Finchley, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
Can you do gutter sealing in North Finchley?
Yes. We work across London and the South East, and North Finchley is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses and we’re fully insured.
What guarantee comes with the job?
Our 12-month guarantee applies to all our work.
I rent my home. Can I book you?
We’re happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.
How long should I leave it?
Cure times vary by product and the conditions. We tell you how long to leave it before we go.
Will the old sealant be removed?
Yes, always, and completely. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
Where do you work from?
We work from Crawley. Our applicators cover North Finchley.
Outside joints around North Finchley
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. London terraces and converted houses often share gutters, downpipes and walls, so check who is responsible for the outside before booking.
As a London address, North Finchley can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. Schools such as Sacks Morasha Jewish Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. If you live in an older home near St. Barnabas Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
North Finchley is about 1 mile north of Finchley, in Greater London. We provide gutter sealing to homeowners, landlords and businesses in North Finchley and nearby, as part of our work across Greater London. Across Greater London, we cover 764 places, and North Finchley is one of them. For nearby work, see our London page, about 9 miles away.
Every address in N12, N20 and N11 is covered for gutter sealing, from the main roads to the quietest streets. If you need gutter sealing at a property on High Road, Lodge Lane and Percy Road or anywhere close by, we can help. North Finchley is on the A1000, so it’s easy for us to get to. If you are just outside North Finchley, we cover Woodside Park (1 mile west), Oakleigh Park (1 mile north), Whetstone (1 mile north), Friern Barnet (1 mile east) and Finchley (1 mile south). Further out, we also cover London (9 miles south-east), City of Westminster (7 miles south), Marylebone (7 miles south), Kensington (8 miles south), St Pancras (7 miles south) and Shoreditch (8 miles south-east).
Landmarks near North Finchley
We work in homes and buildings around Friary Park, Woodhouse College and The Bohemia pub and the streets around them. Other local landmarks include Francis Skaryna Belarusian Library and Museum (0.5 miles west) and St Michael's Catholic Grammar School (under half a mile south-west). The closest station to North Finchley is New Southgate station, roughly 1.4 miles east. Other landmarks nearby include Finchley Memorial Hospital (0.8 miles south) and Francis Skaryna Belarusian Library and Museum (0.5 miles west). Not far away are Darland's Lake and Glebelands Local Nature Reserve.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Do not leave a sagging gutter
- Get leaks sealed before the wet months
- Keep the gutters clear of debris
- Keep downpipes clear
If a gutter starts to sag, get the brackets looked at. Movement will pull the joints open again.
A leaking garage frame lets water reach stored items. A reseal sorts it.
For landlords and businesses
Letting agents and landlords in North Finchley can book us 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 matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Why deal with it now?
You do not need new fascias just because the joints have opened. Sealing the joints tidies them up if the boards are sound. In a London flat, a failed joint rarely stays your problem alone: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
What you get with us
- Colour agreed with you before any work starts
- 4.9 on Google from 180+ five-star reviews
- ARBOMaster approved applicator
- Tidy, careful work