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

Expansion joint sealing in Forest Gate

We carry out expansion and movement joint sealing in walls, decks and floors in Forest Gate and the surrounding area. Send photographs or drawings for a fixed quote.

  • Joints where the bead has lost adhesion
  • Rain penetration at brick or block movement joints
  • Water dripping through deck or ramp joints
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Expansion joint sealing across Forest Gate

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

Expansion joint sealing for commercial buildings in Forest Gate

For movement joints in Forest Gate, photographs and approximate lengths are the best start. Send them through our quote form, and we’ll arrange a site visit if needed. You can also call 01277 525 020 or email us to talk the joints through. If you are dealing with car park joints leaking onto vehicles below and rain penetration at brick or block movement joints, we can help, on car park decks and ramps, podiums and floor movement joints and precast concrete panel joints alike. Most enquiries from Forest Gate start with one failed joint and grow into a wider look at the building: we look at the rest while we’re there and tell you what we find.

Distribution and trade units on London’s edges, and deck car parks across the city, hold most of its floor and slab joints. Planning a job in Forest Gate means thinking about access, loading times and the ULEZ as well as the joints.

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

The Mastic Doctor team standing beside their branded vans outside an office building
Place
Forest Gate (E7, E15, E11)
Wider area
Greater London
Guarantee
12 months on every job
Quote
Quoted before any work starts
Telephone
01277 525 020
Page updated
3 November 2026

When it isn’t the sealant

Not every problem is a sealant problem, and we’re upfront when that’s the case. It won’t fix:

  • A joint that has to be widened or re-detailed before it can work
  • Cracking or settlement that calls for an engineer’s assessment
  • Mechanical expansion joint covers, cover plates or proprietary joint systems (a specialist supplier’s job)

Not sure which it is? You can phone 01277 525 020 or send details through our quote form and we’ll tell you honestly before you book.

Joints and surfaces we work on

  • Brickwork movement joints
  • Precast concrete panel joints
  • Car park decks and ramps
  • Blockwork control joints
  • Cladding panel joints
  • Podiums and floor movement joints

On site: what to expect

Where the site stays busy, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed, then handed back before we move to the next. For a job in Forest Gate, access comes first: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we will schedule to suit.

  1. First, the joints are inspected for width, movement and the type of failure.
  2. A fixed quote follows, naming the sealant and its movement class.
  3. We strip out the old seal and prepare the faces.
  4. We control the depth with backing rod or, in shallow joints, bond-breaker tape.
  5. Primer goes on where the manufacturer specifies it, followed by the sealant, which is then tooled off.
  6. Each joint is inspected and handed over with our 12-month guarantee.

Getting the site ready

  • Send any specification or drawings in advance
  • Share the asbestos register for older buildings
  • Move anything stored against the joints

Get a fixed quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to phone 01277 525 020 or email us with what you know.

Get a quick quote

Advice

Do you need expansion joint sealing in Forest Gate?

When the movement exceeds the sealant’s capability, the bead tears. Cohesive failure, a split through the centre, usually means the joint or product wasn’t right for the movement. Resealing like for like often fails the same way.

Most enquiries start with one or more of the following:

  • Damp inside where a wall movement joint has failed
  • Arrises breaking up along floor joints
  • Sealant pulling off the joint face
  • Weathered movement joint sealant that no longer flexes

For an estate such as Newham University Hospital, 2.1 miles to the south of Forest Gate, the joints in ramps, decks and long building elevations all need attention over time.

What your quote should include

  • Whether their applicators hold CSCS cards
  • Can the work be phased to keep areas open?
  • Will RAMS and insurance details be available?
  • Will failed sealant be removed rather than covered?

Our contractor checklist

Work for main contractors and building owners

Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.

Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, and our applicators hold CSCS cards.

How the quote is worked out

Before we quote, we look at:

  • How much existing material needs removing
  • Access and working height
  • The size and state of each joint
  • How much there is to seal

Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you’ll have a fixed figure to work with.

Details that help us quote

A few photographs plus some basic facts will normally do. It helps to include:

  • Specification clauses that apply
  • What the building is and how it’s used
  • When you need the work done
  • Clear photographs of the problem areas

A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or call 01277 525 020 or send photos by email to discuss it first.

Slabs, ramps and loading bays in Forest Gate

Few London car parks or loading bays can be taken out of use for more than a short spell, so the work is broken into short sections agreed with the building manager. Forest Gate has at least three named business or industrial parks inside a 3-mile radius. Floors, loading bays and yards on sites like these are where floor and movement joints work hardest.

At a retail site such as Stratford Centre, which lies south-west of Forest Gate, trolleys, cages and cars run over floor and slab joints all day. For estates staff at a university like University of East London, 1.2 miles to the south-west of Forest Gate, building and paving joints are part of the planned maintenance list.

Forest Gate is about 6 miles north-east of London, in Greater London. Across the E7 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Across Greater London, 764 places are covered, Forest Gate among them. Our London page has more on work in that area.

Commercial sites across E7, E15 and E11 are covered. For a building on Elm Road, Ash Road and Cary Road or nearby, send details and we will quote for movement joints. Main routes into Forest Gate include the A114 and A116, useful when we plan access and materials. Close to Forest Gate, our area also takes in Upton (1 mile south), Aldersbrook (1 mile north), Holloway Down (1 mile west), Plashet (1 mile south-east) and Little Ilford (1 mile east). Bigger towns within reach include London (6 miles south-west), City of Westminster (8 miles west), Marylebone (8 miles west), Kensington (10 miles west), St Pancras (6 miles west) and Shoreditch (5 miles west).

Landmarks near Forest Gate

Recent enquiries here include premises near Tyndale Academy, Forest Gate Community School and The Hudson Bay pub. There’s a railway station in Forest Gate itself: Wanstead Park station. Well-known places in the area include Stratford Centre (1.3 miles south-west) and Passmore Edwards Museum (0.9 miles south-west). Open spaces near Forest Gate include Hollow Pond and Old Ford Island.

Map of Forest Gate © OpenStreetMap contributors

When to bring in a specialist

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.

Common questions from Forest Gate clients

Can you work on a hospital site such as Newham University Hospital?

Yes. Healthcare sites are among the places we work. We follow the site’s permits, sign-in and infection-control procedures in every area.

Is Acacia Business Centre, near Forest Gate, within your area?

Yes. Our area takes in Forest Gate and its surroundings, with estates and business parks such as Acacia Business Centre included. A few photos and the unit address let us price the work.

Are your applicators CSCS-carded?

Yes. We use CSCS-carded applicators.

Can you work while the building is occupied?

In most cases, yes. Phased work can be planned so areas stay in use, with each area protected and signed.

Can you send site paperwork?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.

How do you choose the sealant?

A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.

Do you use silicone or polyurethane in movement joints?

The specification comes first, then the joint’s movement and exposure. We name the proposed product in the quote.

Accreditations

Trusted. Accredited. Insured.