Greater London · England

Gutter Sealing in West Hampstead

Problem with your gutter and fascia joints in West Hampstead? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.

  • Open joints in fascias and soffits
  • Rain getting in around a garage door
  • Streaks down the brickwork from a leaking joint

Book gutter sealing in West Hampstead

How to look after the new joints

Good habits help new joints last longer. A few tips:

  • Don’t lean ladders against the gutter itself
  • Look along the fascias for open joints
  • Look at the gutters while it’s raining
  • Make sure downpipes aren’t blocked

Make sure downpipes aren’t blocked, so water can get away. Blockages push water back along the gutter.

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.

Gutter sealing in West Hampstead, done properly

Failed sealant round a garage door frame lets rain blow in. The frame joint is cut out and resealed with an exterior sealant. We work on gutter end caps, gutter joints and uPVC fascias, and common reasons people get in touch are earlier gutter repairs that have peeled off and rain getting in around a garage door.

Newer London blocks are built with movement joints in brick and render, and with cladding joints sealed with mastic. Older terraces have their own weak points: gutter joints, roofline trims and the joint where an extension meets the original wall.

All of our work is guaranteed for twelve months, in West Hampstead and everywhere else we cover.

Where
West Hampstead (NW3, NW6, NW2)
Wider area
Greater London
Guarantee
One year on every job
Quote
A clear quote up front
Telephone
0345 464 0079
Last updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

FAQs for West Hampstead

Can you do gutter sealing in West Hampstead?

Yes, West Hampstead is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job.

Can parking be tricky for a visit in West Hampstead?

Parking in West Hampstead, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.

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’ll say so.

Do you work for landlords and businesses?

Yes, regularly. We can quote for several properties at once, and between tenancies is a good time for the work.

Do you guarantee gutter sealing?

There’s a 12-month guarantee on every job, gutter and fascia work included.

Do you clean gutters?

We clean the joints we are sealing and any debris nearby is cleared. A full gutter clean is a separate service.

How long does gutter sealing take?

That depends on how much there is to do, but as a guide it takes an hour or two for a few joints, longer for a full run. We’ll tell you when we quote.

Which products do you use?

The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.

Why it’s worth doing now in West Hampstead

Leaving a leaking end cap can send water down the wall all winter. Resealing it is a quick job before the damage spreads. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.

Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.

Why West Hampstead clients choose us

  • A sealant colour to suit the surroundings
  • Domestic, commercial and hotel work
  • You choose the colour before work begins
  • Sanitary silicone with an anti-fungal additive in wet areas

Read how sealant jobs are priced and customer reviews.

How the job changes by surface

Roofline trims

Sealing roofline trims is joint work only. Roofing problems need a roofer.

Soffit joints

Gaps at soffit joints can let in draughts and insects. A neat seal closes them.

The process

We bring everything the job needs with us, so you do not need to buy or prepare anything. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take anything from an hour or two to a few hours. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.

  1. First we agree which joints need sealing.
  2. We clean out each joint.
  3. We make sure everything is dry.
  4. We apply exterior or gutter sealant and finish it neatly.
  5. We check our work before we leave.

Getting ready for the visit

  • Try not to wet indoor joints just before the visit
  • Tell us about any previous sealing or DIY attempts
  • Mention any sign-in or site rules at work premises

Get a quote

Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job.

Ask for a quote

Read more

What sealant work cannot fix

It helps to know what we cannot do:

  • Guttering that needs replacing
  • Blocked downpipes
  • Brackets that have snapped or loosened

If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before you book.

Where we work in West Hampstead

  • Gutter joints
  • Soffit joints
  • Roofline trims
  • Garage door frames
  • Gutter end caps
  • uPVC fascias

West Hampstead buildings and the weather

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 Fenton House (about 0.5 miles north-east) nearby, there’s older building stock in the area around West Hampstead as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.

Rented homes near Finchley Road & Frognal station change hands often, and a dripping gutter joint or loose fascia trim is easy to miss until damp shows inside. Schools such as Emmanuel Church of England Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.

West Hampstead is about 3 miles north-west of City of Westminster, in Greater London. Whether you are in the middle of West Hampstead or further out, gutter sealing is available for homes and businesses alike, from flats and houses to offices and hotels. Our area takes in 764 places across Greater London, from the larger towns to small villages. Our London page covers work nearby, about 6 miles away.

We cover every part of the NW3, NW6 and NW2 postcode area for gutter sealing. You’ll find streets such as Mill Lane, Acol Road and Ajax Road, all of which we cover. Main roads around West Hampstead include the A502, which makes travel easy. We also cover the places around West Hampstead: Fortune Green (1 mile west), Hampstead (1 mile east), Greenhill (1 mile east), Childs Hill (1 mile north-west) and Vale of Health (1 mile north-east). Further out, we also cover London (6 miles south-east), City of Westminster (3 miles south-east), Marylebone (3 miles south-east), Kensington (4 miles south), St Pancras (4 miles south-east) and Shoreditch (5 miles east).

Landmarks near West Hampstead

Around West Hampstead, our work takes us to homes and buildings near South Hampstead High School, Holly Bush pub and Kilburn Grange Park. There’s a railway station in West Hampstead itself: Finchley Road & Frognal station. Other landmarks nearby include Isokon Gallery (1.2 miles east) and New End Hospital (0.5 miles north-east). For a walk, there’s Parliament Hill and Westbere Copse.

Map of West Hampstead © OpenStreetMap contributors

Can I do it myself?

If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.

What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.

What we’re called out for in West Hampstead

Roofline sealant ages in sun and rain. It goes hard, cracks and pulls away over time.

It’s worth asking for a quote if you see:

  • Fascia boards with gaps between them
  • Dripping gutter ends
  • Leaking gutter joints and stop ends
  • Water running down the wall below the gutter

In the older streets around Presbyterian Church Of St Andrew, old and new materials meet at the roofline and walls, which is where sealant earns its keep.

What your quote should include

  • What guarantee comes with the work
  • What happens if the job turns out different
  • Is the old sealant removed completely?
  • Which colour the sealant will be

Our hiring checklist

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job