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

Mastic sealant contractors in Earl's Court

Mastic sealing for building owners, managing agents and housing associations throughout Earl's Court and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Communal area joints that look neglected
  • Brittle perimeter mastic across a building
  • The same joint failures repeated across a portfolio
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
Constructionline member
Fully insured: £5m PL

Mastic sealing for businesses in Earl's Court

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

For managing agents and facilities managers

If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end.

Hotels, schools, healthcare sites, offices and retail units book us directly too. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.

Mastic sealing for commercial buildings in Earl's Court

For over 20 years we have resealed joints for owners, agents and landlords. Every applicator holds a CSCS card and we hold public liability insurance. Resealed mastic joints in Earl's Court carry our 12-month guarantee. If you’re dealing with mastic failing across several blocks on an estate and brittle perimeter mastic across a building, we can help, on communal kitchens and washrooms, shopfronts below residential blocks and communal entrances and stairwells alike. One point of contact handles commercial sealant work in Earl's Court from the first photos to the final walk-round, for single jobs and planned programmes alike.

For managing agents in Earl's Court, resident access, notice periods and the building’s rules shape the job. Work is planned with the agent so residents get notice and access is arranged in advance.

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.

Where
Earl's Court (W14, W8, SW5)
Wider area
Greater London
Guarantee
12 months on every job
Price
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Cost factors for mastic joints

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

  • Specialist products, such as fire-rated or hygienic sealants
  • Location, for remote and island sites
  • Any access equipment needed
  • Backing rod, priming and other preparation

Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you will have a fixed figure to work with.

Before you send an enquiry

It doesn’t need to be a full survey. These details are enough to start:

  • Photos of the joints, close up and from further back
  • Your programme or deadline
  • Any specification or named product
  • What the building is and how it’s used

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.

Blocks and managed buildings in Earl's Court

London blocks come with residents to inform, access to agree and often a concierge or estate office to work with. We fit the programme to your notice periods.

If you’re responsible for a building such as St Cuthbert's, frame and door mastic needs the same attention as any other property. For a school such as St Cuthbert with St Matthias CofE Primary School, perimeter mastic on windows and doors is a holiday job.

Earl's Court is about 1 mile south-east of Kensington, in Greater London. Anywhere in W14, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. We work across 764 places in Greater London.

Business premises anywhere in W14, W8 and SW5 are within our area. For a building on Sun Road, Star Road and Rich Lane or nearby, send details and we will quote for mastic joints. Being close to the A3218 and A3220, Earl's Court is straightforward for us to reach. Sites close to Earl's Court are covered too, including West Brompton (1 mile south), South Kensington (1 mile east), Little Chelsea (1 mile south-east), World's End (1 mile south-east) and Walham Green (1 mile south). A short drive away, we cover London (4 miles east), Marylebone (3 miles north-east), St Pancras (4 miles north-east), Shoreditch (6 miles north-east), Walthamstow (10 miles north-east) and Hoxton (6 miles north-east).

Around Earl's Court

Around Earl's Court, our work takes us to commercial buildings near Abdus Salam Library, Gwendwr Garden and Courtfield pub and the streets around them. Nearby too are The Fulham Boys School (under half a mile west) and Collingham College (less than half a mile east). Earl's Court has its own railway station: West Brompton station. Well-known places in the area include Montfichet's Tower (4.4 miles east) and Kensington Arcade (0.7 miles north). Not far away are Campden Hill and The Long Water.

Map of Earl's Court © OpenStreetMap contributors

On site: what to expect

The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. In Earl's Court, most buildings stay in use during the work, so zones and timings are agreed with whoever manages the building. Phased work keeps the rest of the building in use.

  1. Each block or building is walked and the failed joints recorded with the likely cause.
  2. We send a fixed quote that sets out the joints, the products and the programme.
  3. The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
  4. Failed mastic is removed and the faces taken back to sound, dry material.
  5. Backing rod and primer go in where the joint and the product need them, then new sealant is applied and tooled.
  6. Finished joints are looked over and the 12-month guarantee confirmed.

What we need from you

  • Point out parking and an unloading spot
  • Send any specification or drawings in advance
  • Let building users know which areas are affected

Getting a fixed quote

To get a fixed quote, ring 01277 525 020 or email us with the site address and an outline of the work. You can also send details through our quote form.

Get a quick quote

Related advice

Why deal with it now?

Failed perimeter mastic lets cold air in around frames and the windows usually get the blame. Resealing the perimeters is often the simpler fix where the frames themselves are sound. Repeat call-outs disrupt occupied London buildings, so cutting the old sealant out fully and doing it right once is the better route.

The specified product makes a difference, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site rules also count.

What you get with us

  • One contact handling all your sites
  • Colours confirmed for the specified product
  • A Constructionline member, so easy to vet
  • Workmanship guaranteed for 12 months

See what affects the cost and our accreditations and insurance.

FAQs: Earl's Court

Will you take on a block within reach of West Brompton station?

Yes, and several blocks can go on one quote. Give us the building’s details and say how residents are notified, and we’ll quote and plan to suit.

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

Yes, we plan every London job around the building’s own access rules. Send the building rules and access times with your enquiry. We allow for the ULEZ, which covers every borough

Who decides which product is used?

If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

How long before the joints can be used?

Curing time varies by product, and we confirm it on the day, and flag anything to keep off until it has cured.

Do you work for managing agents and housing associations?

We do. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work, and we quote building by building or as a programme.

What if the old mastic contains asbestos?

In older buildings, old mastic can contain asbestos. We check the asbestos register or survey before disturbing it and suspect material is tested first.

How long do sealant joints last?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Treat them as maintenance items and inspect them regularly.

What we can’t put right

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

  • Failed window or door frames, which need a window contractor
  • Asbestos-containing sealant, which we don’t remove
  • Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)

Not sure which it is? You can ring 01277 525 020 or email the details over and we will tell you honestly before you book.

Where we work in Earl's Court

  • Window and door perimeters on blocks
  • Communal kitchens and washrooms
  • Balcony and threshold joints
  • Shopfronts below residential blocks
  • Communal entrances and stairwells
  • External wall and movement joints

When to call us in Earl's Court

Poor preparation explains many failed joints. Without clean, sound faces and a primer where the product needs one, the bead peels off one side.

Site and facilities staff are often the first to spot these:

  • Complaints coming in block by block
  • Leaks at window and door perimeters
  • A mix of products and colours from past repairs
  • Brittle perimeter mastic across a building

Student accommodation around universities such as University of Westminster, 0.7 miles north-west of Earl's Court, is typically managed block by block, which suits a planned mastic programme.

What to look for in a quote

  • Are they CHAS accredited or on Constructionline?
  • The terms of the workmanship guarantee
  • Who will actually carry out the work
  • Whether primer will be used where the manufacturer specifies it

Questions to ask before you appoint anyone

Accreditations

Trusted. Accredited. Insured.