Greater London · England

Gutter, fascia & soffit sealing in Crofton, Greater London

Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims for homes and businesses in Crofton and across Greater London. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Drips from gutter joints and end caps
  • Cracked sealant along roofline trims
  • Open joints in fascias and soffits

Book gutter sealing in Crofton

About our gutter sealing in Crofton

Open fascia and soffit joints spoil the roofline and can let weather in. They’re sealed in a matching colour where one is available. If you are dealing with streaks down the brickwork from a leaking joint and rain getting in around a garage door, we can put it right.

Outside work in London starts with access: side passages, upper floors and where to park. In Crofton, joints up high may need ladders or other access, which is worth talking through when you book.

The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.

Location
Crofton (BR6, BR5)
Wider area
Greater London
Guarantee
One year on every job
Price
A clear quote up front
Call
0345 464 0079
Updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

Landlord and commercial work in Crofton

Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.

Letting agents often deal with us directly. Tell us the address, the job and how access works.

FAQs for Crofton

Can you do gutter sealing in Crofton?

Yes. Our work covers London and the South East, and Crofton is part of that. You can ring 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear price.

Is parking a problem for a job in Crofton?

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

Do you work on high-level gutters?

Low-level work is easiest. For anything higher, we will confirm what access is needed once we know more.

Can you match the sealant colour?

In most cases you can choose. We’ll explain which colours are available and agree one before we start.

Should I try DIY first?

It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.

Do you hold any approvals?

Yes. Mr Mastic is an ARBOMaster approved applicator.

What should I tell you?

Where the job is, what the problem is and roughly how big it is. Photos by email help too.

Will there be a smell?

Sometimes, a little. It fades as the sealant cures, and ventilation helps.

What sealant work cannot fix

Before you book, it’s worth knowing the limits:

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

Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.

Surfaces we seal

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

Different surfaces, different methods

Soffit joints

Soffit board joints can separate over time. We seal them to close the gaps.

Gutter joints

Gutter joints move and sit in water. A gutter sealant made for the job holds best.

Can I do it myself?

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.

Why deal with it now?

You don’t need new fascias just because the joints have opened. A neat seal closes the gaps if the boards are sound. 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.

Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.

Why choose Mr Mastic in Crofton

  • An ARBOMaster approved applicator
  • Every job guaranteed for a year
  • Homes, businesses and hotels
  • Over 20 years’ experience

Take a look at what affects the cost or our reviews.

What we do, step by step

When we arrive, we start by going over the job with you. Surfaces next to the work are protected before any work begins. The work generally takes a few hours, depending on the number of joints and the access. In a London area like Crofton, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.

  1. First, we find the drip and check the gutter isn’t cracked or sagging.
  2. Old sealant and dirt are removed from the joint.
  3. We make sure the joint is dry before sealing.
  4. We seal the joint with a sealant made for gutters and outdoor use.
  5. The run is checked and any debris near the joints is cleared.

How to prepare

  • Let us know if you’ve seen damp or leaks
  • Try not to wet indoor joints just before the visit
  • Tell us about access, such as stairs, a lift or high-level joints

Getting a quote

For gutter sealing in Crofton, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.

Get a price

Advice

Crofton buildings and the weather

London terraces and converted houses often share gutters, downpipes and walls, so check who is responsible for the outside before booking. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

If you look after a building such as Crofton Infant School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. If you let a flat or house near Orpington station, a gutter joint that drips onto the wall can turn into a damp complaint, so it’s worth checking. Crofton is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.

Crofton is about 1 mile south-west of Orpington, in Greater London. Crofton gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. 764 places in Greater London are on our list, from the larger towns to small villages. You can also see our page for London, roughly 11 miles from Crofton.

Every address in BR6 and BR5 is covered for gutter sealing, from the main roads to the quietest streets. Whether your property is on Grange Road, Reed Avenue and Gumping Road or a nearby road, we can help. Neighbouring places we cover for gutter sealing include Broom Hill (1 mile north-east), Locksbottom (1 mile west), Petts Wood (1 mile north), Farnborough (1 mile south) and Green Street Green (2 miles south). Within a short drive, we also cover London (11 miles north-west), City of Westminster (14 miles north-west), Marylebone (14 miles north-west), Kensington (15 miles north-west), St Pancras (14 miles north-west) and Shoreditch (12 miles north-west).

What’s near Crofton

In Crofton, that means homes and buildings near The Priory School, Newstead Wood School and The Maxwell pub. There’s a railway station in Crofton itself: Orpington station. Well-known places in the area include Orpington Hospital (1.1 miles south-east) and Crofton Roman Villa (within half a mile south-east). Open spaces near Crofton include Summer Hill and The Warren.

Map of Crofton © OpenStreetMap contributors

Quotes for gutter sealing in Crofton

The quote reflects the job in front of us. We take into account:

  • The size of the job
  • How easy the joints are to reach
  • Whether old sealant or filler has to be cut out
  • The product the joint needs

What it costs depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before any work starts, so you know where you stand.

What we need to know

Photos help, but a description is a good start. Please mention:

  • Any previous sealing or DIY work
  • How many joints, rooms or windows are involved
  • What the problem is, such as mould, gaps, leaks or cracking
  • How we’d reach the joints

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.

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