Greater London · England

Window & door mastic in Maypole, Greater London

Mastic around window and door frames, sills and patio doors for homes and businesses in Maypole and across Greater London. ARBOMaster approved applicators, fully insured, with a one-year guarantee.

  • Rushed sealant from a window installation
  • Draughty joints inside around the window
  • Black, perished sealant on frames

Window mastic in Maypole

Window mastic in Maypole: local notes

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. Historic houses like Lullingstone Castle (about 2.4 miles east) are a reminder that the area around Maypole has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.

In the older streets around Mission Chapel, the joint between an old wall and a newer frame is normally the first place rain gets in. Letting a property close to Knockholt station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.

Maypole is about 3 miles south-east of Orpington, in Greater London. Across the BR6 area, we cover window mastic for homes and businesses. We cover 764 towns and villages across Greater London, from the larger towns to small villages. You can also see our page for London, about 14 miles away.

We work across the BR6 postcode area for window mastic. Window mastic is available to properties on Jubilee Road, Hollybush Lane and Maypole Road. If you are just outside Maypole, we cover Bopeep (1 mile south), Well Hill (1 mile east), Chelsfield (1 mile north-west), Badgers Mount (1 mile south) and Goddington (1 mile north-west). Further out, we also cover London (14 miles north-west), Shoreditch (15 miles north-west), Whitechapel (14 miles north-west), Stockwell (14 miles north-west), Orpington (3 miles north-west) and Plaistow (13 miles north-west).

Local landmarks in Maypole

Typical jobs here are in homes near Harris Academy Orpington, Hewitt's Chalk Bank and The Bo-Peep pub and the streets around them. Maypole’s nearest station is Knockholt station, roughly 0.7 miles south-west of the centre. Nearby you will also find Lullingstone Castle (2.4 miles east) and Orpington Hospital (2 miles west). Not far away are The Warren and Summer Hill.

Map of Maypole © OpenStreetMap contributors

How we handle window mastic in Maypole

Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. If you are dealing with old mastic that has gone black or come away and white mastic on grey or black frames, we can help.

London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Whatever is in the opening now, the joint between frame and wall is what keeps the weather out.

Each job carries a 12-month guarantee.

Place
Maypole (BR6)
Region
Greater London
Guarantee
One year on every job
Price
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

What we do, step by step

The work is kept neat and contained to the joints we’re treating. Expect the work to take a morning for a couple of windows and a door, and we tell you how long to leave it before we go. For a job in Maypole, parking and access are the things to plan: let us know about parking, the floor we’ll be working on and any lift or shared entrance.

  1. First, we confirm safe access to each frame.
  2. Old, cracked mastic is removed completely.
  3. Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
  4. Deep voids are backed, then the sealant is gunned in.
  5. The joint is shaped to shed water and the area tidied.

Before we arrive

  • Tell us about access, such as stairs, a lift or high-level joints
  • Keep children and pets away from the work area
  • For business premises, tell us about site rules or sign-in

Ask for a quote

There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, ring 0345 464 0079 or drop us an email.

Ask for a quote

Advice

Do you need window mastic in Maypole?

Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the brick or render around it hardly moves. If the sealant cannot stretch, it splits.

Common reasons people contact us include:

  • A bead that does not match the frame
  • Mastic that is falling out in pieces
  • Leaking joints at the ends of sills
  • Gaps left after new windows were fitted

Maypole is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.

Before booking anyone

  • Who does the work, and how experienced they are
  • How the colour is chosen
  • Is the old sealant removed completely?
  • How long to leave it before use

10 questions to ask before you book

Why act early in Maypole

Running fresh sealant over the old joint is tempting, but it will not grip old, dirty sealant. It soon lifts and the leak carries on behind it. The old mastic has to come out. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and by the time it shows on a wall or ceiling in Maypole, the repair is bigger than the sealant job would have been.

A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.

What you get with us

  • Arbo and Everbuild products
  • Old sealant always removed completely
  • A sealant colour to suit the surroundings
  • Experience in homes, commercial sites and hotels

See our cost guide or our reviews.

How the job changes by surface

Patio & French doors

The joints around patio doors run a long way, top, sides and threshold. The threshold and the bottom corners take the most water, so we pay close attention there.

Timber windows & doors

Timber moves with moisture as well as heat, so a flexible sealant is essential. We seal onto sound, dry paintwork or timber.

Quotes for window mastic in Maypole

For a quick quote, just ask. The main things that affect it are:

  • Access and height
  • The type of sealant required
  • The old material and how stubborn it is
  • How many areas need sealing

Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.

Helping us quote

A few details help us give you an accurate quote. When you get in contact, it helps to mention:

  • How many joints, rooms or windows are involved
  • The type of property
  • A few photos by email, if you can
  • If someone has resealed it before

Want a quote for window mastic? Please phone 0345 464 0079 or drop us an email with a few details. We will explain what we’d do and give you a clear quote before we start.

Work for landlords, hotels and businesses

Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.

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.

DIY versus a professional finish

Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.

What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.

Maypole: your questions answered

I let a flat near Knockholt station. Can you help?

Yes, we work for landlords and agents. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.

Is parking a problem for a job in Maypole?

In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly.

How many windows can you do in a day?

A handful of frames is a short visit, while a whole house takes longer. We confirm the timing with your quote.

Can new sealant go over the old?

No, because it fails. The old sealant always comes out first.

Will it make a mess?

No. The area is protected while we work and cleaned up afterwards.

Will the old sealant be removed?

Yes. We cut out all the old sealant and clean the joint before applying anything new.

Can new window sealant be painted?

That depends on the product. Silicone isn’t paintable, but some hybrid sealants are. Tell us if you are decorating and we’ll choose accordingly.

How do I get a quote for window mastic in Maypole?

There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.

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