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

Fitzrovia expansion joint sealing

Expansion and movement joint sealing in walls, decks and floors throughout Fitzrovia and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Car park joints leaking onto vehicles below
  • Rain penetration at brick or block movement joints
  • Movement joints with split or torn sealant
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Need expansion joint sealing in Fitzrovia?

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

Expansion joint sealing in Fitzrovia, done properly

Every structure moves a little, all the time: they expand in the heat, shrink as they dry, and shift under load. Expansion and movement joints are built in so the structure can move without cracking and the seal across each one keeps out water and grit. We seal and reseal movement joints in walls, panels, decks and floors. We work on brickwork movement joints, podiums and floor movement joints and precast concrete panel joints, and the failures we’re asked to look at most are chipped joint edges on forklift routes and previous reseals laid over old sealant. Most enquiries from Fitzrovia start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.

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.

What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

Location
Fitzrovia (NW1W, W1T, W1G)
Region
Greater London
Guarantee
A 12-month guarantee
Price
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

What affects the price in Fitzrovia

Each job is priced on its own details. The main factors are:

  • Location, for remote and island sites
  • Whether old sealant has to be cut out first
  • Any access equipment needed
  • Induction, permit and paperwork requirements

Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.

Before you send an enquiry

Diagnosis starts before we arrive. Let us know:

  • Any dates the work must fit around
  • Any specification or named product
  • Drawings or a marked-up plan, if available
  • The asbestos register, for older buildings

Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.

Joints that move: notes for Fitzrovia

In London, decks, bays and service yards normally have to keep running, so joints are sealed in sections with each area handed back once cured. Less than 3 miles from Fitzrovia there are at least three named estates and business parks. Sites like these are full of saw-cut floor joints, yard slabs and car park joints.

University campuses such as University of Westminster (to the south-west of Fitzrovia) have car parks, paved walkways and building elevations with movement joints. Retail centres such as Brunswick Centre (to the east of Fitzrovia) have floors, service yards and car parks with joints under constant traffic.

Fitzrovia is about 1 mile north-east of Marylebone, in Greater London. If you are looking for expansion joint sealing in Fitzrovia, we can help. Fitzrovia is one of 764 places in Greater London on our list for movement joints.

We cover the NW1W, W1T and W1G postcode districts for movement joints. We cover commercial and managed buildings on Euston Road, Duke's Road and Market Place and the roads nearby. With the A501 and A4200 nearby, Fitzrovia is easy to get to with materials and equipment. Sites close to Fitzrovia are covered too, including Euston (1 mile north-east), Marylebone (1 mile south-west), Bloomsbury (1 mile east), Somers Town (1 mile north-east) and Soho (1 mile south-east). A short drive away, we cover Kensington (3 miles south-west), Shoreditch (3 miles east), Walthamstow (7 miles north-east), Whitechapel (3 miles east), Hampstead (3 miles north-west) and Ruislip (12 miles west).

Local landmarks in Fitzrovia

Recent enquiries here include premises near Carpenters Arms, UCL School of Slavonic and East European Studies and St Anne's Churchyard and the streets around them. Also close by are Wellcome Library (less than half a mile north-east) and Maria Fidelis Catholic School FCJ (less than half a mile north). There’s a railway station in Fitzrovia itself: London Euston station. Other landmarks nearby include London Foot Hospital (less than half a mile south-west) and Blindiana Museum (under half a mile west). The countryside around Fitzrovia includes St. James's Park Lake and Primrose Hill.

Map of Fitzrovia © OpenStreetMap contributors

What we can’t put right

Before quoting, we check that sealant is the right answer. It won’t put right:

  • Mechanical expansion joint covers, cover plates or proprietary joint systems (a specialist supplier’s job)
  • Changing the joint layout or spacing of a structure
  • Failed waterproofing membranes on podiums, roofs or decks (a waterproofing specialist’s job)

If you are not sure, just phone 01277 525 020 or email the details over and we will give you a straight answer before you book.

Where we work in Fitzrovia

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

Common questions from Fitzrovia clients

Can you work on a hospital site such as Fitzrovia Hospital?

Yes. Healthcare sites are among the places we work. Work is phased so departments keep running, under the site’s own rules.

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.

What happens if old sealant might contain asbestos?

Managing asbestos is the dutyholder’s responsibility, so for older buildings we ask for the asbestos register first. If anything suspect turns up, we stop until it’s tested.

Do you cover Fitzrovia?

Yes. Fitzrovia falls within our area, and the simplest way to start is to phone 01277 525 020 or send details through our quote form.

Can a joint be sealed if the edges are broken?

Spalled edges need repairing before a new seal will last and we will flag every length affected. A bead on a broken edge soon lets go.

Do you need to see the site first?

Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we’ll arrange a visit before quoting.

Which product is best for expansion joints?

It depends on the movement, exposure and traffic. Facades often take a low-modulus silicone; floors and decks typically need a polyurethane.

When to call us in Fitzrovia

With no backing rod or bond-breaker in place, sealant grips the base of the joint too. Bonded on three faces, it can’t stretch evenly when the joint opens, which is why depth control matters.

Clients normally get in touch after noticing something like this:

  • Arrises breaking up along floor joints
  • Movement joints with split or torn sealant
  • Sealant peeling off one face of the joint
  • Damp inside where a wall movement joint has failed

Hospital campuses such as Fitzrovia Hospital, under half a mile to the west of Fitzrovia, grow in stages, leaving movement joints wherever new blocks meet old.

What your quote should include

  • How long is the guarantee, and what does it include?
  • Their pre-qualification and accreditations
  • Do they follow the manufacturer’s priming guidance?
  • Will RAMS and insurance details be available?

Questions to ask before you appoint anyone

Commercial clients in Fitzrovia

FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.

If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

Different surfaces, different methods

Concrete and precast panel joints

Precast and concrete panel joints move daily. We use a sealant classed for the movement, laid over backing to depth.

Podium joints

Podium decks are exposed and often trafficked. We choose a product that copes with feet, wheels and weather.

Our process

Diagnose, treat, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. Most London premises stay occupied while we are on site, so we agree zones and timings with the building or facilities manager. Areas are handed back as each section is finished.

  1. First the joints are inspected, widths measured and the type of failure noted.
  2. A fixed quote names the sealant we propose and its movement class.
  3. Phasing is agreed so decks, floors or entrances can stay in use where needed.
  4. We strip the old sealant or filler and prepare each face until it’s sound and dry.
  5. Depth is controlled with backing, the faces are primed where the maker calls for it, then the bead is laid and tooled.
  6. We check each joint with you, confirm the cure time and sign off under our 12-month guarantee.

What we need from you

  • Share the asbestos register for older buildings
  • Explain the parking and delivery arrangements
  • Let building users know which areas are affected

Quotes

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, call the office on 01277 525 020 or email a schedule or drawings.

Get a price

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