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

West Hampstead floor joint sealing

Work needed on a floor joint in West Hampstead? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Brittle joint filler breaking up
  • Broken arrises where pallet trucks cross
  • Scruffy, dirty joint lines on a shop or showroom floor
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
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
£5m public liability

Floor joint sealing for businesses in West Hampstead

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Floor joint sealing in West Hampstead, done properly

Open joints take a beating from forklift and pallet-truck wheels. Every pass chips at the bare concrete edge, and over time a neat cut turns into a ragged channel. Filling the joint properly gives the edges back their support. It also smooths the route for drivers and stock. We work on retail and showroom floors, loading bays and construction joints, and the failures we’re asked to look at most are unfilled floor joints collecting dirt and grit and soft sealant dragged out of trafficked joints. A single leaking joint is often how a building in West Hampstead first comes to us: we look at the rest while we are there and tell you what we find.

Floor and movement joints in London take heavy use: car park decks, loading bays, shopping centre malls and podiums over occupied space. When a joint fails, grit and water get in and the arrises start to break up, so it pays to act early.

Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
West Hampstead (NW3, NW6, NW2)
Region
Greater London
Guarantee
12 months on our workmanship
Quotes
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026

How a job runs

Diagnose, treat, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. Most London premises stay occupied while we’re on site, so zones and timings are agreed with whoever manages the building. Areas are handed back as each section is finished.

  1. First comes a walk of the floor to record joint sizes, broken edges and traffic routes.
  2. The quote fixes the price, names the filler or sealant and shows how the floor will be zoned.
  3. Each joint is cleared of old fill and dirt and taken back to clean, sound edges.
  4. Dust is sucked out of the joint and a primer used if the product data sheet asks for one.
  5. We fill each joint to depth and finish it flush so wheels roll straight across.
  6. Each phase reopens when the product is ready for wheels, then we start the next.

Before we start on site

  • Let building users know which areas are affected
  • Send any specification or drawings in advance
  • Share your working hours and any access restrictions

Getting a fixed quote

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To ask for one, ring 01277 525 020 or email us.

Get a quick quote

Related advice

What sets the cost

Before we quote, we look at:

  • Site requirements such as inductions and permits
  • Quantities, in metres or numbers
  • Which sealant the job calls for
  • Access and working height

A quote for floor joints depends on quantities, condition and access. Ask us for a fixed quote.

Sending details for a quote

Good information means a firmer quote. Helpful details to send:

  • Specification clauses that apply
  • Photos of the joints, close up and from further back
  • The asbestos register, for older buildings
  • The postcode of the building

Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. The easiest way is to call the office on 01277 525 020 or email the details over.

Leave it or put it right?

A floor coating laid over open joints soon cracks along the joint lines. The joints have to be filled or sealed as joints before or alongside any coating work. In West Hampstead, each extra visit means more notices, permits and disruption, so cutting the old sealant out fully and doing it right once is the better route.

Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Why choose Mastic Doctor in West Hampstead

  • Specification-led, product-correct work
  • Work carried out by CSCS-carded applicators
  • 12 months’ guarantee on every job
  • A fixed quote before work starts

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

What the job involves on each surface

Isolation joints at walls and columns

Joints at walls and columns are often missed when floors are sealed, and they collect dust and debris. We include them in the survey.

Loading bays and dock areas

We typically work through dock areas a few bays at a time so deliveries keep moving. Tell us your site hours and access windows and we will plan around them.

Where floor joints take the most wear near West Hampstead

In London, decks, bays and service yards usually have to keep running, so we seal in sections and hand areas back as each cures. The 3 miles around West Hampstead 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.

Across sites such as Regis Road Business Park, which lies east of West Hampstead, floor and movement joints can be sealed in phases so units keep working. Office parks like The Quadrant Business Centre, 1.3 miles south-west of West Hampstead, have decks, ramps and clad elevations whose joints take movement every day. University campuses such as Regent's University London (to the south-east of West Hampstead) have car parks, paved walkways and building elevations with movement joints.

West Hampstead is about 3 miles north-west of City of Westminster, in Greater London. Businesses, contractors and managing agents in West Hampstead use us for work on floor joints. 764 places across Greater London fall within our area, West Hampstead among them. Our London page has more on work in that area (6 miles or so).

Anyone looking for floor joint sealing in NW3, NW6 and NW2 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Buildings on Mill Lane, Acol Road and Ajax Road are within our area. Being close to the A502, West Hampstead is easy to get to with materials and equipment. Close to West Hampstead, our area also takes in Fortune Green (1 mile west), Hampstead (1 mile east), Greenhill (1 mile east), Childs Hill (1 mile north-west) and Vale of Health (1 mile north-east). Further afield, our area takes in London (6 miles south-east), City of Westminster (3 miles south-east), Marylebone (3 miles south-east), Kensington (4 miles south), St Pancras (4 miles south-east) and Shoreditch (5 miles east).

Local landmarks in West Hampstead

We work on buildings around South Hampstead High School, Holly Bush pub and Kilburn Grange Park, among other places. West Hampstead has its own railway station: Finchley Road & Frognal station. Other landmarks nearby include Isokon Gallery (1.2 miles east) and New End Hospital (0.5 miles north-east). For a walk, there’s Parliament Hill and Westbere Copse.

Map of West Hampstead © OpenStreetMap contributors

When it isn’t the sealant

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

  • Slab panels that rock or move under load
  • Spalled arrises, which need an edge repair first
  • A failing floor coating, which is a flooring contractor’s job

If you are not sure, just ring 01277 525 020 or send details through our quote form and we’ll give you a straight answer before you book.

Joints and surfaces we work on

  • Joints along racking aisles
  • Construction joints
  • Retail and showroom floors
  • Loading bays
  • Saw-cut induced joints
  • Forklift and pallet-truck routes

Questions about West Hampstead

Can you work on a hospital site such as Royal Free Hospital?

Yes. We work in healthcare settings as well as offices and schools. Each area is agreed with the ward or department and the estates team in advance.

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

Yes. Booked loading bays, goods lifts and permit-to-work systems are normal for London jobs. Say when the building is occupied and when it’s quiet, and we will plan accordingly. We allow for the ULEZ, which covers every borough

Do you repair broken joint edges?

We check the edges as part of the survey. Damaged edges are flagged up front, so nothing is filled that won’t hold.

Which is better for warehouse joints, filler or sealant?

The answer comes from the traffic and the joint’s movement. Forklift routes generally call for a semi-rigid filler that holds the arrises and joints with more movement take a flexible sealant.

Does the weather affect the work?

For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

What about RAMS and site documents?

Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we will confirm them with the quote.

Do you work to architects’ specifications?

Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it, flagging anything that needs clarifying.

Keeping the joints sound

After handover, these steps help:

  • Expect fillers on young slabs to need a top-up
  • Put loading bays at the top of the list
  • Clear packed debris from open joints regularly
  • Respect the cure time before traffic returns

Keep traffic off fresh joints until the time we give you and it pays to stick to it. In a busy building, barriers keep early traffic away.

A broken joint on a main route is crossed by every truck on that route. Sorting it early looks after your equipment as well as the slab.

Accreditations

Trusted. Accredited. Insured.