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

St Ann's floor joint sealing

Looking for floor joint sealing in St Ann's? It’s simple: send details, get a quote, we seal, guaranteed.

  • Dock area joints that have failed first
  • Trucks and loads jolting over damaged joints
  • Cracked and crumbling joint fill
1
Send details
Send the specification, photos or a marked-up plan.
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
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS accredited
£5m public liability

Floor joint sealing in St Ann's

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Floor joint sealing in St Ann's, done properly

For sites in St Ann's and across Greater London, the process is short: send details, get a fixed quote, we seal, and the work is guaranteed. A rough length of joint, photos of the worst areas and a site plan let us give a quick quote and a visit can be arranged where that is easier. Site teams most often ask us about open saw cuts full of debris and brittle joint filler breaking up, across retail and showroom floors, loading bays and joints along racking aisles. For commercial sealant work in St Ann's, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

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.

The 12-month guarantee covers our workmanship: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Place
St Ann's (N15, N4, N16)
Wider area
Greater London
Guarantee
A 12-month guarantee
Quotes
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Diagnose, treat, sign off

We schedule the visit to fit the site hours and access windows you give us. While we’re working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. Planning a London job such as one in St Ann's starts with access. Give us the hours we can be on site and we will schedule to suit.

  1. We walk the floor and mark up joint widths, edge damage and traffic routes.
  2. You receive a fixed quote showing products and phasing.
  3. Each joint is cut or routed back to clean, sound concrete.
  4. Dust is vacuumed out and primer applied where specified.
  5. The joint is filled to its specified depth and trimmed level.
  6. We hand each phase back when it can take traffic.

Getting the site ready

  • Flag any permit to work we will need
  • Let building users know which areas are affected
  • Tell us your opening times and when work is allowed

Request a quote

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.

Get a price

Related advice

Joints that move: notes for St Ann's

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. St Ann's has at least three named business or industrial parks inside a 3-mile radius. Sites like these are full of saw-cut floor joints, yard slabs and car park joints.

For a school such as St Ann's CE Primary School, playground and building joints can be done in the holidays. A healthcare site such as St Ann's Hospital (less than half a mile south-west of St Ann's) depends on car parks, ramps and service yards whose joints take traffic all day. A campus such as American University in London (to the south-west of St Ann's) has long runs of movement joint in its buildings, decks and paving.

St Ann's is about 2 miles north-west of West Hackney, in Greater London. We cover commercial sites throughout St Ann's, for single jobs and planned programmes alike. St Ann's is one of 764 places we cover in Greater London for floor joints. We also cover London, some 6 miles away.

Work on floor joints is covered throughout N15, N4 and N16, whatever the building. We cover commercial and managed buildings on Ida Road, Elmar Road and Grove Road and the roads nearby. Close to St Ann's, our area also takes in West Green (1 mile north-west), Seven Sisters (1 mile east), South Tottenham (1 mile east), Harringay (1 mile west) and Tottenham Green (1 mile north-east). A short drive away, we cover London (6 miles south), City of Westminster (5 miles south-west), Marylebone (5 miles south-west), Kensington (8 miles south-west), St Pancras (4 miles south) and Shoreditch (4 miles south).

Landmarks near St Ann's

Recent enquiries here include premises near Church of St Andrew, No.8 Seven Sisters pub and Moselle Upper School. Also close by are Chestnuts Park (under half a mile west) and Park View School (0.5 miles north-west). St Ann's has its own railway station: Seven Sisters station. Nearby you’ll also find City of London Maternity Hospital (1.7 miles south-west) and The Mall Wood Green (1.4 miles north-west). Green spaces nearby include Railway Fields and Hollow Pond.

Map of St Ann's © OpenStreetMap contributors

Commercial clients in St Ann's

As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.

Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, with each stage agreed with your site contact.

What we can’t put right

Honesty saves time and money. New sealant won’t cure:

  • Worn screed or surface finishes
  • Structural cracking in the slab
  • Slab panels that rock or move under load

Not sure which it is? You can call the office on 01277 525 020 or email the details over and we will tell you honestly.

Surfaces we seal

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

FAQs: St Ann's

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

Yes, hospitals are one of the sectors we cover. We follow the site’s permits, sign-in and infection-control procedures in every area.

Will you take on work at estates like Crusader Industrial Park, close to St Ann's?

Yes, sites like Crusader Industrial Park are within our area, along with the rest of St Ann's. Send details of the unit and the work through our quote form for a quick quote.

How soon can traffic go back on the floor?

Cure times vary with the product and how cold the slab is. We’ll give you a time for each zone when we agree the phasing.

Do your applicators hold CSCS cards?

Yes. Our applicators hold CSCS cards.

Can you send site paperwork?

Requirements differ from site to site, so list what you need, whether RAMS, insurance or CSCS details, and we will confirm with the quote.

Which sealant will you use?

The specification comes first, if there is one. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

How long does a job like this take?

The duration is planned around your programme and the access we are given. We’ll give you an estimate of time on site when we quote.

What affects the price in St Ann's

What shapes the price:

  • Which sealant the job calls for
  • How much there is to seal
  • Removal of failed or old sealant
  • Induction, permit and paperwork requirements

Pricing floor joints depends on how many there are, their condition and the access. Ask us for a fixed quote.

Details that help us quote

Good information means a firmer quote. When you get in touch, include:

  • The asbestos register, for older buildings
  • The type of building and who uses it
  • Access details, including height
  • Any specification or named product

If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photos and a description will do.

After the work

A few simple habits keep the new joints working:

  • Start with the dock areas, where joints fail soonest
  • Ask drivers not to drag forks or pallets
  • Allow for topping up joints as a new slab settles
  • Tell us about strong cleaning chemicals before we quote

Walk the main truck routes every few months and look along the joint lines. Watch for filler pulling away from an edge, fresh chipping or grit collecting, and photograph anything that changes.

Joint damage starts slowly and then speeds up. Each chip makes the drop deeper and the next impact harder, so it pays to act at the first signs.

General trades versus a specialist

Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

Accreditations

Trusted. Accredited. Insured.