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

Mastic sealing for building owners and managing agents in Telscombe Cliffs, East Sussex

Mastic sealing in Telscombe Cliffs, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.

  • Damaged joints in communal entrances and corridors
  • Leaks at window and door perimeters
  • Estate-wide sealant that is simply worn out
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Mastic sealing for Telscombe Cliffs sites

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

About our mastic sealing in Telscombe Cliffs

Across Telscombe Cliffs and the rest of East Sussex, we work the same way: you send details, we return a fixed quote, the joints are resealed and the 12-month guarantee follows. Addresses, photographs of typical joints and a rough idea of quantities let us give a quick quote or we can visit. We work on external wall and movement joints, communal entrances and stairwells and shopfronts below residential blocks, and the failures we’re asked to look at most are draughts at frames across a block and water getting in round frames after rain. For commercial sealant work in Telscombe Cliffs, you deal with one contact from quote to sign-off, whether it’s one building or several.

Owners with buildings around smaller places like Telscombe Cliffs often group mastic work so one visit covers several properties. Send the addresses and photographs and we’ll quote for all of them together.

Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we are clear about what is covered before work starts.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Telscombe Cliffs (BN10)
Region
East Sussex
Cover
A 12-month guarantee
Quote
A fixed quote before we start
Telephone
01277 525 020
Updated
3 November 2026

General trades versus a specialist

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.

A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Maintenance after handover

Cleaning and maintenance staff play a part too. Share these points with them:

  • Have the asbestos survey to hand for older buildings
  • Log resealing dates block by block
  • Include mastic in your cyclical inspections
  • Start inspections with the most exposed faces

Protect entrance and corridor joints from knocks where possible. Damage at low level is the most common reason communal joints fail early.

The longer failed joints are left, the more likely the substrate edges break up. Then the edges may need repairing first and the job grows.

When to call us in Telscombe Cliffs

UV and rain age external sealant. The surface chalks, the body stiffens and cracks appear, especially on south and west faces.

It’s worth sending us details if you spot any of the following:

  • Draughts at frames across a block
  • Complaints coming in block by block
  • Water getting in round frames after rain
  • Failed external movement joints

Site managers at schools like Telscombe Cliffs Community Primary School can fit frame mastic into the summer works.

Questions to ask before you book

  • Is the sealant right for the movement and the substrate?
  • Whether primer will be used where the manufacturer specifies it
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Whether old or failed sealant will be cut out, not overlaid

Questions to ask before you appoint anyone

From enquiry to sign-off

We begin with a short walk round with whoever looks after the building, 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. For a job in Telscombe Cliffs, the main thing is a clear picture of the work. You will then get a fixed price for the work.

  1. First we look at the mastic on each building and note what needs replacing.
  2. A fixed quote follows, split by block or building if that suits you.
  3. The programme is fixed with you, including dates you can pass on to residents or tenants.
  4. Failed mastic is removed and the faces taken back to sound, dry material.
  5. Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
  6. Completed joints are inspected and carry a 12-month workmanship guarantee.

What we need from you

  • Let building users know which areas are affected
  • Tell us which areas need to stay in use
  • For older buildings, check the asbestos register before work

Quotes

Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. For smaller jobs, photographs and a description will do.

Ask for a quote

Advice

For owners and agents in Telscombe Cliffs

With the shore within about 1 mile, Telscombe Cliffs counts as a coastal location. On buildings near the shore, the side facing the weather normally needs its mastic renewed first, so it’s worth inspecting those sides more often. The South East is one of the drier parts of the UK. Even so, frame mastic only goes on in dry, workable conditions, and elevations facing the sun and the prevailing weather are typically where frame mastic ages first.

If you look after a block within reach of Newhaven Town station (2.9 miles east of Telscombe Cliffs), frame and balcony mastic can be renewed on one programme. Student blocks close to universities like University of Brighton, 3.4 miles to the east of Telscombe Cliffs, are easiest to work on between tenancies.

Telscombe Cliffs is about 3 miles west of Newhaven, in East Sussex. Looking for mastic sealing in Telscombe Cliffs? We can help, as we do across East Sussex. 308 places across East Sussex fall within our area, including Telscombe Cliffs. Brighton is covered too, around 6 miles from Telscombe Cliffs.

If you need mastic sealing in BN10, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Streets here include Park Avenue, Ambleside Avenue and Park View Rise, and sites on any of them can send details for a fixed quote. Close to Telscombe Cliffs, our area also takes in Telscombe (1 mile north), Peacehaven (1 mile east), East Saltdean (1 mile west), Saltdean (1 mile west) and Piddinghoe (2 miles east). Further afield, our area takes in Eastbourne (13 miles east), Seaford (5 miles east), Lewes (5 miles north), Hailsham (12 miles east), Uckfield (13 miles north-east) and Newhaven (3 miles east).

Local landmarks in Telscombe Cliffs

We work on buildings around Peacehaven Community School and Smugglers Rest pub, among other places. For rail, the closest station is Newhaven Town station, roughly 2.9 miles east of the centre. Other landmarks nearby include Planet Earth Museum (2.8 miles east) and Chailey Heritage Marine Hospital (3.7 miles east). For a walk, there’s Itford Hill and Beacon Hill Local Nature Reserve.

Map of Telscombe Cliffs © OpenStreetMap contributors

What happens if it’s left?

Failed perimeter mastic lets cold air in around frames, and they often blame the windows. Resealing the perimeters is often the simpler fix where the frames themselves are sound. Small buildings around Telscombe Cliffs suffer from failed joints as much as large ones. Catching it early means a reseal rather than repairs.

Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.

Why clients in Telscombe Cliffs choose us

  • A Constructionline member, so easy to vet
  • CHAS accredited contractor
  • One contact handling all your sites
  • Clear, fixed quotes

Take a look at how commercial sealant jobs are priced and how we’re accredited.

Questions about Telscombe Cliffs

Will you take on work at estates like Meridian Shopping Centre, close to Telscombe Cliffs?

Yes. We cover Telscombe Cliffs and the area around it, including industrial estates, business parks and retail parks such as Meridian Shopping Centre. Photos and a short description are enough for a first look.

Is Telscombe Cliffs off your patch?

Not at all. Telscombe Cliffs is within our area. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.

Will you just go over the old sealant?

No, never. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.

How soon can the area be used again?

That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, so we’ll confirm the curing time on the day.

How much does the work cost?

We don’t publish prices, because every site is different. Send photographs or drawings and we’ll price it at a fixed figure.

How do I request a quote?

The quote form is the simplest route, though you can also ring 01277 525 020 or use the quote form. Photos, drawings or a joint schedule help us quote quickly.

How do you reach windows on upper floors?

Every block is different. How upper joints are reached is agreed before work is booked so the fixed quote reflects it.

What the job involves on each surface

Communal areas

Joints at low level in communal areas take knocks from bins, bikes and buggies and tend to fail first.

Window and door perimeters on blocks

Perimeter joints on blocks are best done elevation by elevation or block by block. How each joint is reached is agreed at quote stage.

Accreditations

Trusted. Accredited. Insured.