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

Westmeston mastic sealing

Work needed on a mastic joint in Westmeston? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Occupiers reporting cold air round windows
  • Patchy repairs in mismatched sealant
  • Communal area joints that look neglected
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
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
CHAS accredited
Fully insured: £5m PL

Mastic sealing near Westmeston

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Mastic sealing in Westmeston, done properly

Owners and agents typically inherit a building’s mastic rather than choose it and it slowly wears out: it sits round windows and doors, along external joints and through communal areas. Once it cracks, hardens or comes away, draughts and water find a way in, and occupiers start reporting it. Site teams most often ask us about communal area joints that look neglected and estate-wide sealant that is simply worn out, across communal entrances and stairwells, window and door perimeters on blocks and communal kitchens and washrooms. A specialist sealant contractor works differently from a general builder: on jobs in Westmeston, preparation and product choice get the time they need.

Rural conversions near places like Westmeston often set modern frames into older stone, flint or brick. Perimeter mastic there has to grip an uneven face and suit the building’s character.

Work we carry out comes with a 12-month guarantee. Should something we installed fail, call 01277 525 020 or email us and we will come back to it.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Westmeston (BN6)
Wider area
East Sussex
Cover
12 months on our workmanship
Price
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026

What sealant work can’t fix

Sealant solves a lot, but not everything, and we are upfront when that’s the case. These need a different solution:

  • Substrate edges that need repairing first
  • Asbestos-containing sealant, which we don’t remove
  • Misted or failed double-glazed units

If in doubt, ring 01277 525 020 or email the details over and we will say what we think.

Surfaces we seal

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

Keeping the joints sound

Problems stay small when the joints are checked regularly. Specifically:

  • Protect low-level joints in entrances
  • Have the asbestos survey to hand for older buildings
  • Encourage occupiers to report problems at frames
  • Mention RAMS, insurance or CSCS requirements up front

Add mastic joints to your cyclical inspections. Watch for splits, open gaps, hard or chalky surfaces and mastic pulling away, and note the building and elevation.

Mastic fails gradually, then all at once in a wet spell. Acting at the first signs keeps it a straightforward reseal and the complaints that come with it.

Diagnose, treat, sign off

Tell us your site hours and access windows and we’ll plan around them. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. If others near Westmeston need work, visits can be combined. A fixed quote is given before anything starts.

  1. We inspect the joints, building by building, and record what has failed and why.
  2. A fixed quote follows, split by block or building if that suits you.
  3. The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
  4. Old sealant is stripped and each face prepared back to firm 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.

Getting the site ready

  • Explain the parking and delivery arrangements
  • Clear stock, furniture or equipment away from the joints
  • Tell us which areas need to stay in use

Getting a fixed quote

Pricing a project or setting a maintenance budget? We will quote against your scope and drawings that you can work with. For a chat about it beforehand, call 01277 525 020 or use the quote form.

Ask for a quote

Read more

Doing it in-house

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.

Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

How the job changes by surface

Commercial and mixed-use buildings

Tenants in commercial buildings need to keep trading, so we plan around them.

Communal areas

We keep entrances and stairs open throughout. We work in sections so access is never blocked.

Questions about Westmeston

Will you take on a block within reach of Hassocks station?

Yes, and several blocks can go on one quote. We work to your notice and access arrangements.

Is Westmeston too far out for you?

Not at all. Westmeston is within our area. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.

Can weather delay the job?

It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.

What about access for upper-floor joints?

Access is discussed and agreed before the quote is fixed. Tell us the building height and any access already in place, and we’ll tell you how we’d approach it.

What if the old mastic contains asbestos?

Some mastics in pre-2000 buildings contain asbestos. We ask for the asbestos register or survey before work starts and suspect material is tested first.

What paperwork can you provide?

Our credentials include CHAS, Constructionline and public liability insurance. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.

How do you handle work on occupied blocks?

Residents and tenants carry on as normal. We flag any areas that need internal access well before the dates so it can be arranged.

What happens if it’s left?

Replacing mastic before water gets in is a planned job. After water has got in, there may be damp, damaged plaster or decoration to put right too and occupiers notice. Older rural buildings around Westmeston move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.

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’ll price your job on its own details.

Why clients in Westmeston choose us

  • Clear, fixed quotes
  • Constructionline member for supplier checks
  • CHAS accredited contractor
  • Work carried out by CSCS-carded applicators

Read our cost guide or how we’re accredited.

Block-wide mastic in Westmeston

Central London is about 41 miles from Westmeston. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres; their frame mastic often ages block-wide. Westmeston sits in one of the drier corners of the country, the South East. External mastic still waits for dry faces and the right temperature, and south- and west-facing elevations, which take the most sun and rain, often age first.

If you look after a block within reach of Hassocks station, which lies north-west of Westmeston, frame and balcony mastic can be renewed on one programme. Site managers at schools like Ditchling (St Margaret's) Church of England Primary School can fit frame mastic into the summer works. Property owners at sites such as Ditchling Common Business Park, 2.8 miles north of Westmeston, can have mastic renewed between lettings.

Westmeston is about 4 miles south of Burgess Hill, in East Sussex. Westmeston sits inside our coverage and the rest of East Sussex, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. We work across 308 places in East Sussex, large and small.

Business premises anywhere in BN6 are within our area. Just outside Westmeston, we also work in Ditchling (1 mile north), Keymer (2 miles north-west), Clayton (2 miles west), Hassocks (2 miles north-west) and Hurst Wickham (3 miles north-west). Bigger towns within reach include Seaford (13 miles south-east), Lewes (5 miles south-east), Uckfield (10 miles north-east), Newhaven (10 miles south-east), Peacehaven (9 miles south-east) and Telscombe (8 miles south-east).

Near you in Westmeston

We work on buildings around The Bull Hotel and Downlands Community School. For rail, the closest station is Hassocks station, about 2.1 miles north-west. Other landmarks nearby include Ditchling Museum of Art + Craft (1 mile north-west) and Clayton Castle (1.7 miles west). Open spaces near Westmeston include Ditchling Beacon and Ladies Mile.

Map of Westmeston © OpenStreetMap contributors
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