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

Croydon facade sealing

We carry out facade joint and window perimeter sealing on commercial buildings in Croydon. Send photographs or drawings for a fixed quote.

  • Damp patches beside frames after rain
  • Draughts around frames and panels
  • Failed seals around shopfront and entrance frames
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS accredited
£5m PL insurance

Facade sealing for businesses in Croydon

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

Your questions answered

Do you work in London buildings with loading restrictions?

Yes, we plan every London job around the building’s own access rules. The building manager’s rules go straight into our method. We allow for the ULEZ, which covers every borough

Can you work at a site such as Pilton Industrial Estate, by Croydon?

Yes. Our area takes in Croydon and its surroundings, with estates and business parks such as Pilton Industrial Estate included. Photos and a short description are enough for a first look.

Can the building stay open while you work?

Typically, yes. Phased work can be planned so areas stay in use, with each area protected and signed.

Do your applicators hold CSCS cards?

Yes. Our applicators hold CSCS cards.

What about RAMS and site documents?

Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.

How long will the new sealant last?

Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

How much does the work cost?

We don’t publish prices, because every site is different. With photographs or drawings, we can give you a fixed quote.

About our facade sealing in Croydon

Facade sealants sit in the sun, rain and frost every day, so they don’t last indefinitely. How long a joint lasts depends on the movement it takes, its exposure, the product and how well it was installed. When it fails, the whole bead is cut away and the joint rebuilt. Most enquiries involve patch repairs that keep failing and discoloured or dirty facade joints, across shopfront frames, stone and brick facade joints and cladding panel joints. Facilities teams, main contractors and managing agents in Croydon tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Construction in a London area such as Croydon 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.

We stand behind the joints we seal: 12 months, guaranteed. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.

The Mastic Doctor team standing beside their branded vans outside an office building
Place
Croydon (CR0, CR2, CR9, CR8)
Region
Greater London
Guarantee
12 months on our workmanship
Quotes
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026

On site: what to expect

Working in a building that stays open takes some planning. We sign and contain the area we are 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. Phased work keeps the rest of the building in use.

  1. Photos, drawings or a visit tell us about the joints and the access.
  2. Product choice follows the joint’s movement and substrate.
  3. Failed beads are removed in full and both faces cleaned back.
  4. Primer is applied where the maker specifies it.
  5. Rod goes in to fix the depth, then the joint is sealed and tooled.
  6. The finished joints are checked with you.

Before we start on site

  • Warn occupants and staff about the work
  • Send any specification or drawings in advance
  • Send your site hours and access windows

Request a quote

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 send details through our quote form to discuss it first.

Get a quick quote

Read more

For managing agents and facilities managers

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.

We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Croydon can sit alongside others in a wider programme across Greater London.

Facade sealing in Croydon: the local picture

There are a good number of hotels within about 2 miles of Croydon. When hotels extend or refit, the work is normally squeezed between peak periods, mastic included. As part of Greater London, Croydon is inside the ULEZ, which applies to every van on site. Delivery slots and scarce storage shape how and when the mastic goes in.

New units and refits on sites such as Pilton Industrial Estate, 0.8 miles to the north-west of Croydon, need their panel and perimeter joints sealed to the specification. For contractors at a college like Croydon College (under half a mile north of Croydon), perimeters and internal sealant are timed for the holidays. Hotels like Kirkdale Hotel (to the south of Croydon) rarely close for long, so refurbishment mastic is phased floor by floor.

Croydon is about 9 miles south of London, in Greater London. Anywhere in CR0, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Croydon is one of 764 places we cover in Greater London. Sites around London have their own page, roughly 9 miles from Croydon.

We take on facade joints across the CR0, CR2, CR9 and CR8 postcode area, for business premises of every kind. If your site is on High Street, Church Road and Ruskin Square or close by, we can quote for facade joints. Croydon sits on or close to the A235 and B243, which helps when planning parking and deliveries for the job. Close to Croydon, our area also takes in South Croydon (1 mile south), Coombe (1 mile east), Addiscombe (2 miles north-east), Ashburton (2 miles north-east) and Woodside (2 miles north-east). Bigger towns within reach include London (9 miles north), City of Westminster (10 miles north), Marylebone (11 miles north), Kensington (10 miles north-west), St Pancras (11 miles north) and Shoreditch (11 miles north).

Near you in Croydon

Around Croydon, our work takes us to commercial buildings near Cambridge Tutors College, Rutherford School and Keg & Grill pub, among other places. Croydon has its own railway station: South Croydon station. Well-known places in the area include Croydon Airport Visitor Centre (1.2 miles south-west) and Croydon University Hospital (1.7 miles north). For a walk, there’s Roundshaw Downs and Duppas Hill.

Map of Croydon © OpenStreetMap contributors

What the job involves on each surface

Render and coated surfaces

Sealant can only hold as well as the render or paint beneath it. We remove flaking material so the bead bonds to a firm surface, and we’ll mention any edges that need repair.

Window and door perimeters

Frames grow and shrink with temperature, and the perimeter joint has to follow. The rod limits depth, leaving the bead able to flex without tearing.

Site staff or a sealant specialist?

There’s also the paperwork. 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: new sealant over old, damp or dusty faces, or the wrong product for the movement.

How the quote is worked out

Your fixed quote is built from the real scope. It takes account of:

  • Quantities, in metres or numbers
  • Access and working height
  • Specialist products, such as fire-rated or hygienic sealants
  • Travel to remote or island sites

A quote for facade joints depends on how many there are, their condition and the access, plus any specification you are working to. Ask us for a fixed quote.

Sending details for a quote

To price the job accurately, we need a clear picture of the site. Send us:

  • Asbestos survey details if the building is older
  • Any dates the work must fit around
  • Whether the building will be occupied during the work
  • Specification clauses that apply

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, call 01277 525 020 or email us.

When something else is needed

A proper diagnosis includes knowing what sealant can’t do. We will tell you if the real problem is any of the following:

  • Arranging specialist high-level access, which is planned with the client
  • Render or concrete edges that have broken away
  • Water getting in through cracked render or porous masonry

Not sure which it is? You can give us a call on 01277 525 020 or email the details over and we’ll tell you honestly before you book.

What we seal

  • Window and door perimeters
  • Stone and brick facade joints
  • Cladding panel joints
  • Shopfront frames
  • Perimeter joints where frames meet the structure
  • Coping and flashing joints
Accreditations

Trusted. Accredited. Insured.