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

Mastic sealing for building owners and managing agents in Addington, Greater London

Commercial sealant work in Addington for contractors, FMs and building owners: mastic sealing for building owners, managing agents and housing associations, quoted at a fixed price.

  • Mastic failing across several blocks on an estate
  • Draught complaints from residents or tenants
  • Patchy repairs in mismatched sealant
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Mastic sealing for Addington sites

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

Should maintenance staff do it?

Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.

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.

How we handle mastic sealing in Addington

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 while we work. We work on window and door perimeters on blocks, balcony and threshold joints and communal entrances and stairwells, and the usual reasons a site gets in touch are the same joint failures repeated across a portfolio and draughts at frames across a block. Whoever orders the work in Addington, the brief is usually the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Across Greater London, Addington included, the ULEZ applies, and parking and loading rules differ from street to street. For a block or estate, it helps to know where we can park and stage materials.

The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.

The Mastic Doctor team standing beside their branded vans outside an office building
Place
Addington (CR0, CR2, BR4)
Wider area
Greater London
Cover
12 months on every job
Quotes
A fixed quote before we start
Telephone
01277 525 020
Updated
3 November 2026

Cost factors for mastic joints

Quotes vary with the job. It mainly depends on:

  • How much existing material needs removing
  • Whether the work must be split into stages
  • Backing rod, priming and other preparation
  • Access and working height

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.

Details that help us quote

A few photographs plus some basic facts will normally do. Please tell us:

  • Photos of the joints, close up and from further back
  • What the building is and how it’s used
  • Rough lengths or quantities, or drawings if you have them
  • The asbestos register, for older buildings

A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or speak to us on 01277 525 020 or email a schedule or drawings if you’d rather talk the job through.

Why deal with it now?

Mixed repairs by different contractors leave a patchwork of products and colours. A block-wide reseal gives one product, one colour and one guarantee and one 12-month guarantee. Getting scaffold, permits or access booked in Addington takes effort, so it makes sense to deal with every failing joint while access is in place.

Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.

Why clients in Addington choose us

  • 12 months’ guarantee on every job
  • Colours chosen to suit frames, cladding or finishes where possible
  • A Constructionline member, so easy to vet
  • Old sealant cut out, never sealed over

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

Looking after buildings in and around Addington

Addington has two care or nursing homes no more than 2 miles away. For owners and operators of care buildings, window perimeters and external joints are best renewed in planned phases around residents. London blocks come with residents to inform, access to agree and often a concierge or estate office to work with. We plan around the notices and access you arrange.

Landlords with units on estates such as Vulcan Way Industrial Estate (1.6 miles south-east of Addington) can bring frame, door and external mastic across several units into one programme. Blocks of flats and mixed-use buildings often cluster around stations such as West Wickham station (to the north-east of Addington) and their window and balcony mastic tends to age at the same rate across a building. Older buildings near Addington, from historic houses such as Addington Palace, 0.4 miles west of Addington, to more modest stock, need compatible products when frames are resealed.

Addington is about 3 miles south-east of Ashburton, in Greater London. We send applicators to Addington for mastic joints, handled exactly as we handle every other area. Addington is one of 764 places in Greater London on our list. We also cover London, some 10 miles away.

Business premises anywhere in CR0, CR2 and BR4 are within our area. If your site is on Lodge Lane, Falconwood Road and Addington Village Road or close by, send details and we’ll quote for mastic joints. Close to Addington, our area also takes in Coney Hall (1 mile north), Forestdale (1 mile south), Spring Park (1 mile north), New Addington (1 mile south-east) and Selsdon (1 mile south-west). Bigger towns within reach include London (10 miles north), City of Westminster (12 miles north-west), Marylebone (12 miles north-west), Kensington (12 miles north-west), St Pancras (12 miles north) and Shoreditch (12 miles north).

Local landmarks in Addington

Recent enquiries here include premises near Addington Park and John Ruskin College and the streets around them. The nearest railway station is West Wickham station, about 1.7 miles north-east. A little further out are National Psychosis Unit (1.6 miles north) and St George's Walk (3.1 miles west). The countryside around Addington includes Bramley Bank and Duppas Hill.

Map of Addington © OpenStreetMap contributors

Common questions from Addington clients

Do you work for managing agents with blocks near West Wickham station?

Yes, we work for agents, landlords and housing associations with blocks of every size. Send the address, photographs of the elevations and your access arrangements, and we’ll give a fixed quote.

Can you cope with the access rules in a London building?

Yes, we plan every London job around the building’s own access rules. Share the building’s contractor rules and we will work to them. All of Greater London is inside the ULEZ, and our planning allows for it

Do you cover Addington?

Yes. We cover Addington and the rest of Greater London, within our coverage of Greater London, South East England and Scotland. For a quote, phone 01277 525 020 or send details through our quote form.

Can you follow the specification on our project?

Yes. Include it with the drawings when you ask for a quote, and we will price the work to it, flagging anything that needs clarifying.

Is mastic sealing guaranteed?

Every building we reseal has a 12-month guarantee. It applies to our workmanship rather than damage or problems with the frames.

Can weather delay the job?

Outside, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

When can the area be used after sealing?

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

Commercial clients in Addington

Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.

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’ll confirm with the quote.

When something else is needed

A proper diagnosis includes knowing what sealant can’t do. We’ll tell you if the real problem is one of these:

  • Roof leaks, gutters or failed flashings that aren’t sealant joints
  • Frames that are rotten, warped or broken
  • Asbestos-containing sealant, which we don’t remove

If you’re not sure, just give us a call on 01277 525 020 or use the quote form and we will give you a straight answer before you book.

Surfaces we seal

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

How a job runs

Working in a building that stays open takes some planning. We sign and contain the area we’re in, keep walkways clear and work section by section so the rest of the building stays in use. 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 comes a look at the joints and, for older buildings, the asbestos records.
  2. A fixed quote covers the joints, products and order of work.
  3. We strip out the old sealant.
  4. The joints are prepared and resealed with the right product.
  5. Buildings are completed in turn.

Getting the site ready

  • Point out any areas we must not close
  • Confirm the product named in the specification
  • Tell us what induction or permit system the site runs

Get a fixed quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call the office on 01277 525 020 or use the quote form with what you know.

Get a quick quote

Read more

Accreditations

Trusted. Accredited. Insured.