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

Facade Sealing in Catford

Our CSCS-carded applicators take on facade joint and window perimeter sealing on commercial buildings in Catford and the surrounding area. Send photos or drawings for a fixed quote.

  • Gaps between rainscreen or cladding panels
  • New sealant peeling off old mastic
  • Unsightly perimeter sealant on a visible elevation
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Facade sealing across Catford

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Work for main contractors and building owners

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Sites in Catford can sit alongside others in a wider programme.

We work for building owners and managing agents on everything from one building to a spread of sites around Catford. Several sites can go on one quote, which keeps the paperwork simple.

Facade sealing for commercial buildings in Catford

Facade joints are the line of defence between the weather and the building fabric. When a perimeter bead splits or peels, water finds its way behind frames and into the structure. We cut out failed facade joints and reseal them with a facade-grade sealant suited to the movement. Most enquiries involve damp patches beside frames after rain and weathered joints at frame-to-structure perimeters, across window and door perimeters, cladding panel joints and stone and brick facade joints. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Catford, preparation and product choice get the time they need.

Construction in a London area such as Catford means working on constrained sites: small compounds, delivery slots and shared hoists and scaffold. We fit around the programme, sealing each elevation or floor as other trades hand over.

A 12-month guarantee applies to all our work. If an installation problem shows up, give us a call on 01277 525 020 or send photos by email and we’ll arrange a return visit.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Catford (SE6, BR1)
Wider area
Greater London
Guarantee
12 months on every job
Quotes
A fixed quote before we start
Call
01277 525 020
Updated
3 November 2026

Contractors’ notes for Catford

The ULEZ covers the whole of Greater London, Catford included, so site vehicles need to meet its standards or pay the daily charge. Deliveries are booked and storage is tight, so mastic materials come in as needed. Several hotels sit less than 2 miles from Catford. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades.

For contractors refurbishing units at places like Bell Green Retail Park, 1 mile south-west of Catford, the mastic covers cladding panels, roller-door and window perimeters. When a school such as Holy Cross Catholic Primary School is extended or refurbished, the mastic package is often squeezed into the holidays. On a campus such as University of Greenwich - Greenwich Campus, which lies north of Catford, new teaching buildings and residences are normally built and refurbished around the academic year.

Catford is about 5 miles east of Streatham, in Greater London. We cover commercial sites throughout Catford. 764 places across Greater London fall within our area, including Catford.

Postcode districts covered here: SE6 and BR1 for facade joints. If your site is on Bargery Road, Penerley Road and Inchmery Road or close by, send details and we will quote for facade joints. We also cover Bellingham (1 mile south-west), Southend (1 mile south-west), Ladywell (1 mile north), Hither Green (1 mile north-east) and Bell Green (1 mile south-west). Bigger towns within reach include London (5 miles north-west), City of Westminster (8 miles north-west), Marylebone (8 miles north-west), Kensington (9 miles north-west), St Pancras (7 miles north-west) and Shoreditch (6 miles north-west).

Landmarks near Catford

We work on buildings around The London & Rye pub, Trinity Church of England School and Forster Memorial Park and the streets around them. The closest station to Catford is Catford Bridge station, roughly 0.5 miles north-west. Other landmarks nearby include Greenwich Castle (2.6 miles north) and University Hospital Lewisham (0.8 miles north). The countryside around Catford includes Downham Woodland Walk and Knight's Hill.

Map of Catford © OpenStreetMap contributors

How the quote is worked out

We price every job individually. The main factors are:

  • Access and working height
  • The product specified
  • The site’s rules and procedures
  • The size and state of each joint

We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we will price your job on its own details.

What to include in your enquiry

There’s no need for a formal survey. These details are enough to start:

  • Any specification or named product
  • Where the site is, with the postcode
  • Asbestos survey details if the building is older
  • Rough lengths or quantities, or drawings if you have them

A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or phone 01277 525 020 or email us to discuss it first.

From enquiry to sign-off

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. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Most London premises stay occupied while we are on site, so zones and timings are agreed with whoever manages the building. Areas are handed back as each section is finished.

  1. We plan access and the order of elevations with the client.
  2. Weather and temperature are checked against the product’s limits.
  3. Each joint is cut out and the edges inspected.
  4. Faces are cleaned, primed where needed and backed.
  5. Sealant is gunned in and tooled hard onto both faces.
  6. We hand over with our 12-month workmanship guarantee.

What we need from you

  • Tell us what induction or permit system the site runs
  • Make sure the joints can be reached
  • Agree which areas must stay open

Quotes

For a fixed quote, give us a call on 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 price

Read more

Doing it in-house

Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.

Maintenance after handover

Keep the joints in good shape with a few simple steps:

  • Add perimeter sealant to planned maintenance checks
  • Note when each elevation was last resealed
  • Ask about asbestos in pre-2000 mastic
  • Insist on a full cut-out when joints are renewed

Keep gutters, sills and drainage paths clear. Good drainage keeps water moving off the facade.

Get the joint design right when resealing: correct depth, proper backing and a sealant that can take the movement. A well-designed joint lasts longer than a like-for-like copy of a failed one.

Surface by surface

Window and door perimeters

Window and door perimeters make up most facade sealing work. A low-modulus neutral-cure product, chosen for the frame and wall, goes in finished to throw water off the joint.

Cladding panel joints

Where panels are sealed rather than open-jointed, the bead is part of the weather line. We cut out failed joints along their full length and rebuild them to the correct depth.

Questions we’re asked in Catford

Can you work at a site such as Bell Green Retail Park, by Catford?

Yes. We cover Catford and the area around it, including industrial estates, business parks and retail parks such as Bell Green Retail Park. To start, just ring 01277 525 020 or email the details over with the unit, the joints involved and your access times.

Can you work around term dates at a campus such as University of Greenwich - Greenwich Campus?

Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Will your applicators have CSCS cards?

Yes. If you need card details for site access, let us know and we’ll send them with the quote.

Can you find out why a window is leaking?

Yes. We check the sealant joints and report what we find before quoting. If the water seems to come from a roof, sill or the glazing unit instead, we say so.

Does the weather affect the work?

For external joints, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.

Who decides which product is used?

A specification, where there is one, decides it. Without one, the joint decides: its movement, its surfaces and what it has to cope with.

Are you fully insured?

Yes. Our insurance certificate can be sent alongside the quote.

Accreditations

Trusted. Accredited. Insured.