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

Bickley mastic sealing

Mastic sealing in Bickley, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.

  • Estate-wide sealant that is simply worn out
  • Failed external movement joints
  • Communal area joints that look neglected
1
Send details
Photos, drawings or a schedule, or we visit.
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
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS accredited
£5m public liability

Mastic sealing near Bickley

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

Bickley: questions and answers

We manage a building near Bickley station. Can you help?

Yes, and several blocks can go on one quote. Photos of each elevation help us quote accurately.

Do you take on jobs in Bickley where loading and access are tightly controlled?

Yes, most London buildings have access rules of some kind, and we plan around them. Send the building rules and access times with your enquiry.

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.

Can you plan resealing across several buildings?

Block-wide and estate programmes are common. You get a fixed quote per building or for the whole job.

How soon can the area be used again?

That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.

How many days will you need on site?

It depends on the scope, though a typical visit typically takes a day or two for a single block, longer for an estate programme. For bigger or phased jobs, we’ll set out a timescale with the quote.

What paperwork can you provide?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We are CHAS accredited and a Constructionline member.

Mastic sealing for commercial buildings in Bickley

Blocks are lived in, so access and disruption have to be thought through. Dates, areas and the order of work are agreed with you in advance so you can let residents know what is happening. Communal entrances and stairs stay usable throughout. If you have old repairs sealed over failed mastic and cracked, hardened mastic round windows on a block, we can put it right. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Bickley it comes down to the same thing: the right product in a properly prepared joint.

For managing agents in Bickley, resident access, notice periods and the building’s rules shape the job. We work to the agent’s notice and access plan, so residents know what’s happening.

Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.

Where
Bickley (BR1, BR2, BR7)
Wider area
Greater London
Cover
12 months on every job
Quotes
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Frames, entrances and external joints in Bickley

For a London block, the agent or landlord usually handles notices to residents and access to flats. We plan around the notices and access you arrange. 21 care or nursing homes sit less than 2 miles from Bickley. Owners of care premises can bring window and door mastic into a phased programme planned around the home.

Trustees of buildings like Church of St George can bring frame and external mastic into a planned maintenance list. If you manage student housing near a university such as University of Greenwich - Avery Hill, which lies north of Bickley, the summer turnaround is the time for mastic.

Bickley is about 1 mile east of Bromley, in Greater London. Bickley sits inside our coverage, with the same fixed quotes and 12-month guarantee as everywhere else. 764 places across Greater London fall within our area, including Bickley. Sites around London have their own page, roughly 9 miles from Bickley.

We take on mastic joints across the BR1, BR2 and BR7 postcode area, whatever the building. Buildings on Golf Road, The Avenue and Canon Road are within our area for mastic joints. Sites close to Bickley are covered too, including Widmore (1 mile north), Elmstead (1 mile north), Chislehurst (1 mile north-east), Bromley (1 mile west) and Sundridge (1 mile north-west). Nearby towns on our patch include London (9 miles north-west), City of Westminster (12 miles north-west), Marylebone (12 miles north-west), Kensington (13 miles north-west), St Pancras (11 miles north-west) and Shoreditch (10 miles north-west).

Landmarks near Bickley

In Bickley, that means premises near Bird In Hand Public House, Holy Trinity College Bromley and Jubilee Country Park. There’s a railway station in Bickley itself: Bickley station. A little further out are Bethlem Museum of the Mind (1.5 miles south-west) and The Mall (1.3 miles west). The countryside around Bickley includes Summer Hill and The Tarn.

Map of Bickley © OpenStreetMap contributors

Our process

Inspect, seal, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in 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. Phased work keeps the rest of the building in use.

  1. A building-by-building inspection lists the failed joints.
  2. You get a fixed quote, per block or for the whole programme.
  3. We agree the programme and dates with you.
  4. Old mastic is removed and the joint faces prepared.
  5. New sealant goes in with backing rod and primer where needed.
  6. Each building is checked and signed off with the 12-month guarantee.

Before we start on site

  • Clear stock, furniture or equipment away from the joints
  • Share the asbestos register for older buildings
  • Have the specification and drawings to hand

Request a quote

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

Get a quick quote

Read more

General trades versus a specialist

Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

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.

What we are called out for in Bickley

Buildings move with temperature and moisture, and the sealant takes up that movement. If the joint or the product wasn’t suited to the movement, it splits and fails early.

These are often picked up first by site or facilities staff:

  • Failed external movement joints
  • Draught complaints from residents or tenants
  • Brittle perimeter mastic across a building
  • Repeated reactive repairs to the same buildings

Property owners at sites such as Chartwell Business Centre, 0.5 miles west of Bickley, can have mastic renewed between lettings.

What your quote should include

  • Their plan for phasing and protecting the area
  • The terms of the workmanship guarantee
  • Will RAMS and insurance details be available?
  • Their pre-qualification and accreditations

Our contractor checklist

When it isn’t the sealant

Not every problem is a sealant problem, and we’d rather tell you before you spend money. These need a different solution:

  • Leaks from above rather than through a joint
  • Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
  • Failed window or door frames, which need a window contractor

If in doubt, phone 01277 525 020 or use the quote form and we will say what we think before you book.

Joints and surfaces we work on

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

What the job involves on each surface

Commercial and mixed-use buildings

Landlords with commercial portfolios have shopfronts, office entrances and external joints to look after. We work across portfolios on a planned basis.

Planned maintenance

Planned resealing replaces emergency callouts and keeps budgets predictable.

Looking after the joints

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:

  • Make it easy for occupiers to report draughts
  • Check sealant joints during planned building inspections
  • Share the asbestos register when you send details
  • Prioritise elevations facing the weather

Ask residents or tenants to report draughts or leaks round windows early. A quick report keeps a small repair small.

Mastic fails gradually, then all at once in a wet spell. Resealing when cracking first shows avoids water damage and the complaints that come with it.

Accreditations

Trusted. Accredited. Insured.