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

Expansion and movement joint sealing in Forty Hill, Greater London

Expansion and movement joint sealing in walls, decks and floors in Forty Hill. CHAS accredited and fully insured, with a 12-month guarantee.

  • Hardened, cracked sealant on exposed facades
  • Joints packed with grit and debris
  • New sealant over old, now failing
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Expansion joint sealing in Forty Hill

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Cost factors for movement joints

We price every job individually. The main factors are:

  • Working within restricted access windows
  • Which sealant the job calls for
  • How accessible the joints are
  • Location, for remote and island sites

What a job costs comes down to how many linear metres there are, what has to come out first and the access. Call for a fixed quote once you have the details.

Before you send an enquiry

To price the job accurately, we need a clear picture of the site. Send us:

  • Whether an asbestos survey exists
  • Drawings or a marked-up plan, if available
  • The product your specification calls for
  • The postcode of the building

For a fixed quote, give us a call on 01277 525 020 or email drawings and photos, telling us the site location and the nature of the job. You can also send details through our quote form.

Expansion joint sealing in Forty Hill

Every structure moves a little, all the time: temperature, moisture, shrinkage and loading all make materials grow and shrink. Expansion and movement joints are built in so the structure can move without cracking. We seal and reseal movement joints in walls, panels, decks and floors. The enquiries we see most involve arrises breaking up along floor joints and hardened, cracked sealant on exposed facades, on blockwork control joints, brickwork movement joints and precast concrete panel joints. Facilities teams, main contractors and managing agents in Forty Hill tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

Most London buildings can’t shut a car park, loading bay or warehouse floor for long. We work through joints a section at a time, closing small areas in turn, at times agreed with the building manager.

Work we carry out comes with a 12-month guarantee. Should something we installed fail, speak to us on 01277 525 020 or email drawings and photos and we will come back to it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Forty Hill (EN1, EN2)
Wider area
Greater London
Guarantee
A 12-month guarantee
Quote
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026

Forty Hill: questions and answers

Can you cope with the access rules in a London building?

Yes, we plan every London job around the building’s own access rules. The building manager’s rules go straight into our method. The ULEZ covers the whole of Greater London, which we allow for

Can you work on a hospital site such as St Michael's Community Hospital?

Yes, hospitals are one of the sectors we cover. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Will your applicators have CSCS cards?

Yes. Our applicators hold CSCS cards, which many sites require.

Are expansion joints and movement joints the same thing?

Movement joint is the broad term for any joint built in to let a structure move. In everyday use the two names are often swapped.

Can you quote from photos?

It depends on the job. Straightforward work can often be priced from photos and measurements, while larger or less clear jobs get a site visit first.

What if the joint edges are damaged?

A bond is only as strong as the material behind it, so we’ll tell you if the edges need repairing before sealing. Where it’s visible beforehand, we’ll say so when we quote.

How long does movement joint sealing take?

That depends on joint lengths, widths, access and how much old sealant or filler needs removing. As a guide, it usually takes a short visit for a handful of joints, or several days or more for a car park deck or long runs of facade joints.

Leave it or put it right?

A torn seal left alone usually gets worse. Grit and water fill the gap and the material either side breaks up. Acting at the first split keeps the cost down. In a London building, a failed joint rarely affects only one party: water travels through shared structures, and a small leak becomes a dispute between occupiers. Putting it right early is less disruptive than dealing with the consequences.

There’s no price list, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.

Why clients in Forty Hill choose us

  • 12 months’ guarantee on every job
  • Joints cleaned back to sound surfaces
  • One contact handling all your sites
  • Public liability insurance in place

See our cost guide or our accreditations.

Doing it in-house

What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.

Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.

Traffic, movement and joints around Forty Hill

London car parks, loading bays and podium decks often can’t close for long, so the work is broken into short sections agreed with the building manager. The 3 miles around Forty Hill take in at least three named trading estates, business parks or retail parks. Sites like these are full of saw-cut floor joints, yard slabs and car park joints.

At a retail site such as Enfield Retail Park, which lies south-east of Forty Hill, joints in car parks, service yards and sales floors carry cars, cages and trolleys every day. In a school such as Worcesters Primary School, movement joints in brick, block and hall floors tend to be forgotten until they leak. At places like Enfield Highway Shopping Centre, 1 mile south-east of Forty Hill, joints are sealed a section at a time so operations carry on.

Forty Hill is about 1 mile north-east of Enfield, in Greater London. Forty Hill sits inside our coverage and the rest of Greater London, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Forty Hill is one of 764 places we cover in Greater London. We also cover London, around 12 miles from Forty Hill.

We take on movement joints across the EN1 and EN2 postcode area, for business premises of every kind. For a building on Goat Lane, Acacia Road and Willow Road or nearby, send details and we will quote for movement joints. We also cover Gordon Hill (1 mile west), Clay Hill (1 mile north-west), Bulls Cross (1 mile north), Enfield (1 mile south-west) and Bullsmoor (1 mile north-east) for movement joints. A short drive away, we cover London (12 miles south), City of Westminster (11 miles south), Marylebone (11 miles south), Kensington (13 miles south-west), St Pancras (10 miles south) and Shoreditch (10 miles south).

Around Forty Hill

In Forty Hill, that means premises near Chace Community School, Hop Poles pub and Russet House School and the streets around them. For rail, the closest station is Turkey Street station, roughly 1 mile north-east of the centre. Other landmarks nearby include Edmonton Green Shopping Centre (2.9 miles south) and Museum of Enfield (1.2 miles south-west). Green spaces nearby include Fir and Pond Woods and Pole Hill.

Map of Forty Hill © OpenStreetMap contributors

Looking after the joints

For the best life from the joints:

  • Clear dirt from joint lines during routine cleaning
  • Include every elevation and deck joint in periodic inspections
  • Look over external and deck joints after a hard winter
  • Treat a small split as a warning, not a cosmetic issue

In warehouses, forklift and pallet-truck routes take the most wear. Keep racking feet and heavy point loads off joint lines, and report any chipped edges early.

Rain gets into walls through torn brick and block movement joints. It can surface inside as damp a long way from the joint. Resealing promptly prevents internal damage.

Commercial clients in Forty Hill

Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.

As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.

Diagnose, treat, sign off

On arrival, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, and the work typically takes a few hours to several weeks, depending on how many metres of joint there are and how much old sealant or filler needs removing. For a job in Forty Hill, access comes first. Give us the hours we can be on site and we’ll schedule to suit.

  1. We assess the joints on site or from photographs, noting widths and how each has failed.
  2. You receive a fixed quote stating the product and the movement it is rated for.
  3. Where areas have to stay open, we agree a phased sequence before starting.
  4. We strip the old sealant or filler and prepare each face until it’s sound and dry.
  5. Backing rod or bond-breaker sets the depth, primer goes on where specified, and the sealant is applied and tooled.
  6. Finished joints are inspected, the cure time confirmed and the 12-month guarantee applies.

What we need from you

  • Point out any areas we must not close
  • Let building users know which areas are affected
  • Clear stock, furniture or equipment away from the joints

Request a quote

Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. To get it moving, ring 01277 525 020 or send photos by email.

Ask for a quote

Related advice

Accreditations

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