The Mastic Doctor team standing beside their branded vans outside an office building
Greater London · England

Facade and window perimeter sealing in Plashet, Greater London

Planning work on a facade joint in Plashet? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Failed seals around shopfront and entrance frames
  • Unsightly perimeter sealant on a visible elevation
  • Damp patches beside frames after rain
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Facade sealing in Plashet

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

What sets the cost

Before we quote, we look at:

  • How much existing material needs removing
  • Induction, permit and paperwork requirements
  • The total length or number of joints
  • Which sealant the job calls for

Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.

Sending details for a quote

To price the job accurately, we need to understand the site. Send us:

  • Specification clauses that apply
  • When you need the work done
  • Drawings or a marked-up plan, if available
  • Whether an asbestos survey exists

Pricing a project or setting a maintenance budget? We will quote against your scope and drawings that you can work with. If you have questions first, speak to us on 01277 525 020 or send details through our quote form.

About our facade sealing in Plashet

We are often asked to look at water coming in around frames. Failed perimeter sealant is a frequent cause, though that isn’t the only cause. We’ll tell you if we think the leak is coming from somewhere sealant won’t fix. If you’re dealing with draughts around frames and panels and facade joints cracked through the middle, we can help, on shopfront frames, coping and flashing joints and window and door perimeters alike. Whoever orders the work in Plashet, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.

Around Plashet, as across London, much of the work is refurbishing existing buildings as well as building new ones. New frames, overcladding and fit-outs all end in perimeter and facade joints, frequently with occupants close by.

Every job we finish is backed by a 12-month workmanship guarantee. If our installation lets you down in that time, we return and fix it.

Location
Plashet (E6, E12, E7)
Wider area
Greater London
Guarantee
A 12-month guarantee
Price
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

What we can’t put right

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. It won’t fix:

  • Providing access systems for the work
  • Replacing glass or failed glazing units
  • Movement beyond what any sealant can handle

If in doubt, call the office on 01277 525 020 or send details through our quote form and we’ll say what we think.

What we seal

  • Shopfront frames
  • Window and door perimeters
  • Coping and flashing joints
  • Cladding panel joints
  • Stone and brick facade joints
  • Perimeter joints where frames meet the structure

Different surfaces, different methods

Render and coated surfaces

Paintable sealants exist for joints that will be coated. We confirm the product with you before starting.

Precast concrete panels

Precast arrises sometimes crumble or carry old residue. We clean back to sound material and flag edges that need repair first.

Why act early in Plashet

Failed joints let in more than water: draughts around frames add to heating costs and complaints. A new seal closes the gap for both. Getting scaffold, permits or access booked in Plashet takes effort, so it makes sense to deal with every failing joint while access is in place.

Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.

Why clients in Plashet choose us

  • 12-month guarantee on workmanship
  • Coloured sealants to suit the setting, where available
  • Public liability insurance in place
  • Matching to RAL references, product permitting

See how commercial sealant jobs are priced or how we’re accredited.

Plashet: questions and answers

Can you work in a London building with booked loading and goods-lift slots?

Yes. Inductions, permits and timed loading are routine for us in London. Share the building’s contractor rules and we will work to them. The ULEZ covers the whole of Greater London, which we allow for

Will you plan work around the academic year at somewhere like University of East London?

Yes. We plan campus work around teaching, exams and residence turnarounds. Let us know which documents your site asks for, and we will confirm them alongside the quote.

How soon can the area be used again?

That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.

Can you look at water coming in around a frame?

Yes. We check the sealant joints and report what we find. If the water seems to come from a roof, sill or the glazing unit instead, we say so.

Can you just add new sealant on top?

No. Overlaying is a shortcut that peels away quickly. Our method is a full cut-out, cleaning, backing and a new bead.

Do you work in Plashet?

Yes. Plashet falls within our area, and the simplest way to start is to phone 01277 525 020 or email us.

Which sealant will you use?

A specification, where there is one, decides it. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Mastic packages on Plashet sites

Plenty of hotels sit less than 2 miles from Plashet. Hotel extensions and refits usually have to fit around bookings, so mastic dates are tight. The ULEZ covers the whole of Greater London, Plashet included, so site vehicles need to meet its standards or pay the daily charge. Delivery slots and scarce storage shape how and when the mastic goes in.

When units on a site such as Beckton Triangle Retail Park, 1.7 miles south-east of Plashet, are refurbished or reclad, the panel joints and window perimeters are part of the mastic package. For contractors on a campus like University of East London, which lies south-west of Plashet, facade and perimeter sealing has to fit around students and term dates. Further education sites such as London Churchill College, 0.7 miles to the west of Plashet, are extended and refurbished from time to time, with mastic often programmed into the summer break.

Plashet is about 2 miles north-east of Plaistow, in Greater London. Plashet sits inside our coverage and the rest of Greater London, with the same fixed quotes and 12-month guarantee as everywhere else. Our Greater London coverage takes in 764 places, from busy centres to rural villages. For work in that direction, see our London page.

Business premises anywhere in E6, E12 and E7 are within our area. If your site is on Fry Road, Edith Road and Hilda Road or close by, send details and we’ll quote for facade joints. If your building is just outside Plashet, we cover Manor Park (1 mile north-east), Little Ilford (1 mile north-east), Upton Park (1 mile south-west), Upton (1 mile west) and Wallend (1 mile south-east). Bigger towns within reach include London (7 miles south-west), City of Westminster (9 miles west), Marylebone (9 miles west), Kensington (11 miles west), St Pancras (7 miles west) and Shoreditch (6 miles west).

Landmarks near Plashet

Recent enquiries here include premises near Monega Primary School, The Overdraft Tavern and West Ham Park, among other places. The nearest railway station is Woodgrange Park station, about 0.5 miles north of the centre. Other landmarks nearby include Newham University Hospital (1.5 miles south) and Stratford Centre (2.1 miles west). Not far away are Old Ford Island and Hollow Pond.

Map of Plashet © OpenStreetMap contributors

Owners, agents and contractors

For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first.

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.

From enquiry to sign-off

Site rules come first: sign-in, induction and whatever permit system the building uses. Once we are cleared to begin, we take the joints in the sequence agreed with you, and each area is checked before we leave it. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.

  1. Access, site rules and timing are settled with the client up front.
  2. We only seal when joints are dry and within the product’s temperature range.
  3. We remove the old bead and check the edges are sound.
  4. Faces are cleaned, primed where needed and backed.
  5. Facade-grade sealant goes in and is tooled to a tidy concave profile.
  6. Once signed off, the work carries our 12-month guarantee.

Preparing the site

  • Confirm the product named in the specification
  • Let us know about inductions and permits
  • Explain the parking and delivery arrangements

Get a fixed quote

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, call 01277 525 020 or email a schedule or drawings.

Ask for a quote

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Accreditations

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