The Mastic Doctor team standing beside their branded vans outside an office building
East Sussex · England

Three Leg Cross facade sealing

Facade joint and window perimeter sealing on commercial buildings across Three Leg Cross, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Patch repairs that keep failing
  • Hard, chalky sealant that no longer flexes
  • Staining on stone next to old sealant
1
Send details
Drawings, photos, a joint schedule or a site 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
Signed off, with 12 months’ guarantee.
South East, London & Scotland
Constructionline member
Fully insured: £5m PL

Facade sealing for businesses in Three Leg Cross

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

About our facade sealing in Three Leg Cross

External sealing depends on the weather more than most trades. The sealant needs a dry joint and temperatures inside the maker’s limits, so frosty or damp mornings can hold work back. We build that into the programme and tell you if the forecast changes the plan. We work on shopfront frames, perimeter joints where frames meet the structure and cladding panel joints, and the failures we are asked to look at most are cold air coming in at window perimeters and hard, chalky sealant that no longer flexes. Most enquiries from Three Leg Cross start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.

Sites around smaller places like Three Leg Cross can be a fair drive from suppliers, so we come with everything the package needs, timed to the stage the job has reached. Send drawings or photographs and the programme and we will quote to suit.

We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Three Leg Cross (TN5)
Wider area
East Sussex
Guarantee
A 12-month guarantee
Price
A fixed quote before we start
Call
01277 525 020
Last updated
3 November 2026

What sets the cost

We price every job individually. The things that drive the figure:

  • Whether old sealant has to be cut out first
  • Working within restricted access windows
  • Distance, for remote addresses
  • The size and state of each joint

What a job costs comes down to how many linear metres there are, what has to come out first and the access. Call for a quote once you have the details.

Sending details for a quote

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

  • Any specification or named product
  • Drawings or a marked-up plan, if available
  • The type of building and who uses it
  • Any dates the work must fit around

Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to give us a call on 01277 525 020 or send photos by email.

What we can’t put right

Some faults sit outside our scope, and we say so rather than covering them up:

  • Joints whose design needs changing by the specifier
  • Leaks from roofs, gutters or failed flashings rather than sealant joints
  • Arranging specialist high-level access, which is planned with the client

If in doubt, give us a call on 01277 525 020 or email the details over and we’ll say what we think.

Surfaces we seal

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

Leave it or put it right?

Topping up a failed joint usually buys very little time. A full cut-out and reseal costs more on the day but lasts much longer and avoids repeat call-outs. For buildings around smaller places like Three Leg Cross, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Renewing joints in good time avoids the problem.

Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you’ll have a fixed figure to work with.

Why appoint us

  • Over 20 years of commercial sealing
  • RAL and finish matching where the product range allows
  • Colour agreed before work starts
  • Failed material removed, not covered up

See our cost guide and how we’re accredited.

How a job runs

In a busy building, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed before we move to the next. Smaller jobs around Three Leg Cross can be grouped with others nearby, which keeps travel down. A fixed quote is given before anything starts.

  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. Facade-grade sealant goes in and is tooled to a tidy concave profile.
  6. We hand over with our 12-month workmanship guarantee.

Preparing the site

  • Let us know about inductions and permits
  • Send your site hours and access windows
  • Make sure the joints can be reached

Ask for a quote

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.

Get a price

Related advice

Questions we’re asked in Three Leg Cross

Is Three Leg Cross too small for you to travel to?

Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Good photos up front let us bring everything on the first visit.

Do you cover business parks and estates near Three Leg Cross, such as Parsonage Farm Business Centre?

Yes. We cover Three Leg Cross and the area around it, including industrial estates, business parks and retail parks such as Parsonage Farm Business Centre. A few photos and the unit address let us price the work.

Is old mastic on our building likely to contain asbestos?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. Check the asbestos register or survey before it is disturbed, and if anything is suspected, we stop until it’s tested. We don’t remove asbestos-containing materials.

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 will confirm them with the quote.

How soon can the area be used again?

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

Can you quote from photos?

That depends on the size and complexity of the job. Simple work can often be priced from photographs, while larger or less clear jobs get a site visit first.

Can the sealant be colour-matched?

That depends on the product. Some ranges are wide, others limited, so we’ll confirm the colours available for the specified product with the quote.

Doing it in-house

Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Common problems we fix in Three Leg Cross

New sealant run over old sealant rarely holds. Fresh silicone won’t stick to cured silicone.

If one of these sounds familiar, it’s time for a closer look:

  • Facade joints cracked through the middle
  • Patch repairs that keep failing
  • Leaks at window and door perimeters
  • Cladding panel joints that have opened up

Extensions at sites like Ticehurst House Hospital (0.5 miles south-west of Three Leg Cross) typically sit beside working departments, and the mastic follows strict access rules.

Before you book anyone

  • Their approach to joint depth and backing
  • What the guarantee covers, and for how long
  • How they handle RAMS and site documents
  • Their pre-qualification and accreditations

Choosing a commercial sealant contractor

Facade sealing around Three Leg Cross: how the place shapes the job

Rainfall across the South East, Three Leg Cross included, is lower than in many parts of the UK. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, which is why external dates are agreed with the site manager. At about 38 miles from central London, Three Leg Cross is within reach of the capital. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, and main contractors there need mastic that keeps to the programme.

For a contractor at a hotel such as The Bell Hotel, 0.6 miles south of Three Leg Cross, the mastic often has to be finished before a reopening date. Historic houses such as Scotney Castle, 2.6 miles north of Three Leg Cross, are a reminder of the older buildings in the wider area, where sealing against old stone, brick or timber needs compatible products.

Three Leg Cross is about 8 miles south-east of Royal Tunbridge Wells, in East Sussex. We cover commercial sites throughout Three Leg Cross, whether it’s a single job or part of a planned programme. Our East Sussex coverage takes in 308 places, from busy centres to rural villages. Our Brighton page has more on work in that area, about 28 miles away.

Anyone looking for facade sealing in TN5 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. We also cover Ticehurst (1 mile south-east), Stonecrouch (1 mile north-east), Flimwell (2 miles east), Kilndown (2 miles north) and Bedgebury Cross (3 miles north-east) for facade joints. Further afield, our area takes in Hastings (15 miles south-east), Bexhill-on-Sea (15 miles south), Hailsham (15 miles south-west), Crowborough (10 miles west), St Leonards (15 miles south-east) and Uckfield (14 miles south-west).

Near you in Three Leg Cross

Locally, jobs take us to sites close to The Bull Inn Public House and the streets around them. The closest station to Three Leg Cross is Stonegate station, about 3 miles south-west. Nearby you’ll also find Old Scotney Castle (2.5 miles north) and Finchcocks Musical Museum (3.4 miles north). Not far away are Bewl Water.

Map of Three Leg Cross © OpenStreetMap contributors
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