Greater London · England
Gutter Sealing in Fortis Green
Gutter sealing across Fortis Green and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Drips from gutter joints and end caps
- Earlier gutter repairs that have peeled off
- Fascia boards with gaps between them
Honest limits
Before booking, it’s worth knowing the limits:
- Gutters that have dropped or pulled away
- Boards that have decayed or split
- Guttering that needs replacing
If you’re not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
Where we work in Fortis Green
- uPVC fascias
- Soffit joints
- Garage door frames
- Gutter joints
- Gutter end caps
- Roofline trims
About our gutter sealing in Fortis Green
For gutter sealant to hold, the joint has to be clean and dry. That’s why we take out the old sealant and dirt first and the joint is dried before the new sealant goes in. If you’re dealing with drips from gutter joints and end caps and end caps that drip every time it rains, we can put it right.
Outside work in London starts with access: side passages, upper floors and where to park. In Fortis Green, joints up high may need ladders or other access, which is worth talking through when you book.
Your job is guaranteed for a year, as with all our work.
- Where
- Fortis Green (N10, N2, N6)
- Region
- Greater London
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Places near Fortis Green
What else we do in Fortis Green
Keeping the joints in good condition
Aftercare is simple:
- Deal with a drip before winter
- Keep ladders off the guttering
- Look at the gutters while it’s raining
- Look for streaks or damp on the wall below gutters
While checking gutters, glance at the fascia joints too. Splits are easier to seal early.
Early sealing limits how much water hits the wall. If we find a bigger problem, we will tell you.
Common questions in Fortis Green
Do you work for landlords with property near Alexandra Palace station?
Yes, we work for letting agents and landlords. You can call 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before work begins.
Can parking be tricky for a visit in Fortis Green?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
Is there any odour?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Will sealing fix a sagging gutter?
No. A sagging gutter pulls its joints apart so it needs refixing before sealing.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Can you seal over the old sealant?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Do you take out the old sealant first?
Yes, always, and completely. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Is gutter cleaning part of the job?
Only around the joints we seal because the joint must be clean. A full gutter clean is a separate job.
Why deal with it now?
Water from a leaking joint hits the same spot every time. Over time that can stain brickwork, mark render and encourage damp so early sealing is worthwhile. 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 you pay reflects the work, not a rough estimate. That is why we ask a few questions first and give you a clear price before work begins.
Why Fortis Green customers choose us
- Any old sealant cut out fully, not covered over
- 180+ five-star Google reviews
- One-year guarantee on every job
- Tidy, careful work
Read what affects the cost and what customers say.
What we are called out for in Fortis Green
Sealant on fascias and trims weathers like any outdoor joint. It hardens, shrinks and splits after some years.
These are the problems we’re asked about most:
- Cracked sealant along roofline trims
- Stop ends leaking at the end of a run
- Open joints in fascias and soffits
- Rain getting in around a garage door
Homes close to United Reformed Church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Questions to ask before you book
- What guarantee comes with the work
- Whether the sealant suits the joint
- Who turns up on the day
- Is VAT in the price?
Fortis Green buildings and the weather
With historic houses such as Heath Hall (about 1.4 miles south-west) nearby, there’s older building stock in the area around Fortis Green as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. London terraces and converted houses often share gutters, downpipes and walls, so check who is responsible for the outside before booking.
Schools such as Fortismere School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing. Fortis Green is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Fortis Green is about 1 mile south-east of Finchley, in Greater London. Whether you’re in the middle of Fortis Green or further out, we cover gutter sealing for every kind of property. Our Greater London coverage runs to 764 places, Fortis Green among them. We also work in London, around 7 miles away.
Our applicators cover all of N10, N2 and N6 for gutter sealing. Local streets include Hill Road, Durham Road and Steeds Road. Main roads around Fortis Green include the A504, so getting to you is simple. Close by, we work in Muswell Hill (1 mile east), East Finchley (1 mile west), Highgate (1 mile south), Crouch End (1 mile south-east) and Hampstead Garden Suburb (2 miles south-west). Further out, we also cover London (7 miles south), City of Westminster (5 miles south), Marylebone (5 miles south), Kensington (7 miles south), St Pancras (5 miles south) and Shoreditch (6 miles south-east).
Local landmarks in Fortis Green
In Fortis Green, that means homes and buildings near Tollington School, Cherry Tree Wood and The Clissold Arms, among other places. Fortis Green’s nearest station is Alexandra Palace station, roughly 1.4 miles east of the centre. Nearby you will also find Kenwood House (1.6 miles south-west) and Grand Arcade (1.8 miles north-west). Open spaces near Fortis Green include Highgate Hill and Glebelands Local Nature Reserve.
How we quote for gutter sealing
The quote reflects the job in front of us. We take into account:
- How much old sealant there is and how hard it is to remove
- Working hours on commercial sites
- Which sealant suits the joint
- Whether the work is at height
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote.
What we need to know
Before you ask for a quote, have a think about:
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
- Any access issues, like height or stairs
- Where the property is
Asking for a quote is easy: let us know what needs doing and where and its rough size. Photos by email help us understand the job, and we will take it from there.
How it works
Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take an hour or two for a few joints, longer for a full run. For a job in Fortis Green, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- First we trace the drip and check the gutter is not damaged.
- We remove the old sealant and clean the joint.
- We dry the joint so the new sealant can bond.
- A gutter sealant is applied to the joint.
- We check the run and clear debris near the joints.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Let us know if you’ve seen damp or leaks
- Keep pets and children clear of the area while we work
How to get a quote
We quote each job on its own. Simply ring 0345 464 0079 or drop us an email and describe the job.