Greater London · England

Window & door mastic in Mile End, Greater London

We cover Mile End for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a one-year guarantee.

  • Rain getting in at the frame or under the sill
  • Untidy mastic left by window fitters
  • Cracked internal joints between frame and plaster

Window mastic in Mile End

What the job involves on each surface

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.

Aluminium frames

Large aluminium doors have long joints down each side and across the head, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.

How we handle window mastic in Mile End

Over two decades of sealing frames has taught us which products suit which walls. We are ARBOMaster approved and fully insured, and we give a one-year guarantee on the work. Typical jobs include damp patches on the reveal after heavy rain and gaps left after new windows were fitted, on window sills, uPVC windows and patio & French doors.

Much of London’s older housing was built with timber sash windows, some still in place and some long since replaced. Either way, the mastic between frame and brickwork is what stops draughts and rain getting in.

You are covered for a year from the day we finish. If anything is not right with it, call 0345 464 0079 or email us.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Where
Mile End (E3, E1, E14)
Region
Greater London
Cover
One year on every job
Quote
A clear price before work begins
Call
0345 464 0079
Updated
26 October 2026

Landlord and commercial work in Mile End

We also work for property managers and facilities teams in Mile End and across Greater London. We can quote a run of properties together, and we’re fully insured for the work.

If you manage several properties in or around Mile End, jobs at different addresses can go on one quote. Send us the addresses and the work at each.

How the visit works

Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours for a few frames, or a day or more for a whole house, and the area is left clean. For a job in Mile End, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.

  1. We start by checking each window and door with you.
  2. Next the failed sealant is cut away and the joint cleaned.
  3. We fit backing rod in deep gaps so the sealant is the right depth.
  4. New exterior sealant goes on in a matching colour and is tooled smooth.
  5. Every joint is checked before we leave.

Before we arrive

  • Let us know about stairs, lifts or work at height
  • For indoor joints, keep the area dry beforehand if you can
  • Mention if the joints have been sealed before

How to get a quote

It all starts with a short chat. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, call 0345 464 0079 or drop us an email.

Ask for a quote

Related advice

Why act early in Mile End

Choosing the product is half the job. Interior caulk and bathroom silicone are not made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. In a flat in Mile End, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.

A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.

Why choose Mr Mastic in Mile End

  • More than 20 years in sealant work
  • One-year guarantee on every job
  • We are fully insured
  • White, clear, grey or coloured to suit, where the product allows

See our cost guide or our reviews.

What window mastic looks like in Mile End

In a converted house or block, who looks after the windows depends on the lease, so it’s worth checking before booking. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

For landlords with property near Limehouse station, renewing tired window mastic between tenants heads off draught and damp complaints. Managing a site like Beatrice Tate School? Then larger buildings have plenty of frames, and the mastic around each one ages.

Mile End is about 2 miles east of Whitechapel, in Greater London. If you need window mastic in Mile End, please call 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Greater London. We cover 764 towns and villages across Greater London, from the larger towns to small villages.

All of E3, E1 and E14 is covered for window mastic. Streets in the area include Bow Road, Bale Road and Toby Lane, and we cover them all. Main roads around Mile End include the A1205, which makes travel easy. Other places close to Mile End include Bow (1 mile north), Bow Common (1 mile south-east), Bromley (1 mile east), Limehouse (1 mile south) and Donnybrook Quarter (1 mile north). Larger places within reach include London (3 miles south-west), City of Westminster (5 miles west), Marylebone (5 miles west), Kensington (8 miles west), St Pancras (4 miles west) and Walthamstow (4 miles north).

Near you in Mile End

Typical jobs here are in homes near Central Foundation Girls' School, Malmesbury Primary School and Mile End Park and the streets around them. The closest station to Mile End is Limehouse station, about 0.9 miles south of the centre. A little further out are St Clement's Hospital (within half a mile north-east) and Museum of the Book (0.8 miles south). For a walk, there’s Old Ford Island and Tower Hill.

Map of Mile End © OpenStreetMap contributors

How we quote for window mastic

You’ll get a clear quote before we start. It’s based on:

  • Whether there’s mould to deal with
  • The product the joint needs
  • The old material and how stubborn it is
  • Working hours on commercial sites

The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and give you a clear price before we start.

Helping us quote

Photos by email are helpful but not essential. Please mention:

  • If it’s domestic, commercial or a hotel
  • What’s wrong with the joints now
  • Whether it has been sealed before
  • How we’d reach the joints

For window mastic in Mile End, ring 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.

FAQs for Mile End

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

Yes. We work for landlords and agents as well as homeowners, and several properties can be quoted together. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will send you a clear quote.

Is Mile End in your area for window mastic?

Yes. We work across London and the South East, and Mile End is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.

Is it OK to seal over old sealant?

No, because it fails. We remove every bit of old sealant first, so the new sealant bonds properly.

Do you remove the old sealant?

Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.

Will you leave a mess?

No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.

Can I add another job to the visit?

Yes. Tell us about everything you’d like done and you’ll get one quote.

Do you guarantee window mastic?

Yes, for 12 months. A yearly look at the joints helps them last.

Do you have insurance?

Yes. We’re fully insured, with over 20 years’ experience in sealant work.

Honest limits

A few problems are outside what sealant work can do:

  • A sash or casement that won’t close properly
  • Misting between the panes of a double-glazed unit (that needs a new unit)
  • A door that needs adjusting, rehanging or new seals

If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.

What we seal

  • Timber windows & doors
  • uPVC windows
  • Composite doors
  • Window sills
  • Aluminium frames
  • Patio & French doors

What we are called out for in Mile End

Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and the wood moves with damp as well as heat.

The most common problems we see are:

  • Hard, cracked sealant around windows
  • Black, perished sealant on frames
  • Damp patches on the reveal after heavy rain
  • Whistling draughts around closed windows

Mile End is in London, so parking needs planning: let us know about parking bays, permits or a driveway.

Comparing quotes

  • Whether the sealant suits the joint
  • How the surfaces are prepared before sealing
  • Whether you can choose the colour
  • Whether VAT is included

Choosing a sealant specialist

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