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

Construction and new-build mastic in Ashurst, West Sussex

Mastic packages for new-build and refurbishment projects in Ashurst and across West Sussex. CHAS accredited and fully insured, with a 12-month guarantee.

  • Frame gaps too wide for sealant alone
  • Existing joints on a refurb that need cutting out and resealing
  • Internal caulk splitting as the building dries out
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Construction mastic in Ashurst

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

Maintenance after handover

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

  • Plan external elevations with the weather in mind
  • Release areas for mastic once other trades have finished in them
  • Put any product change through the designer first
  • Protect sealed areas from following trades

After we’ve sealed an area, it helps to keep other trades from damaging the joints. Fresh sealant needs its cure time before it’s cleaned, painted near or knocked; we confirm the time for each product.

Snag items left to the last week put handover at risk. A planned close-out through each area as it completes keeps the list short, and avoids a rush.

Construction mastic in Ashurst

On a new build, the mastic package is one of the last trades through each area. We work as a mastic subcontractor to main contractors and developers with projects in Ashurst, following the trades through the building as rooms and elevations become ready. We work on internal decorators’ caulk, window and door perimeters and cladding and panel joints, and the failures we are asked to look at most are new external sealant already peeling away and different trades sealing to different standards. One point of contact handles commercial sealant work in Ashurst from the first photographs to the final walk-round, for single jobs and planned programmes alike.

Conversions of older rural buildings near smaller places such as Ashurst bring stone, flint, brick and timber up against new glazing. Those joints need a sealant that suits an uneven, sometimes porous surface, and often a colour chosen for the building.

Work we carry out in West Sussex comes with a 12-month guarantee. Should something we installed fail, call the office on 01277 525 020 or use the quote form and we’ll come back to it.

Place
Ashurst (BN44)
Wider area
West Sussex
Cover
A 12-month guarantee
Quotes
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

When to bring in a specialist

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.

Cost factors for mastic packages

We price every job individually. The main factors are:

  • Induction, permit and paperwork requirements
  • Distance, for remote addresses
  • Working within restricted access windows
  • Joint width, depth and condition

We don’t publish prices, since every building and every scope is different. Call for a quote and we will price your job on its own details.

Details that help us quote

There’s no need for a formal survey. A few details are enough to get going:

  • A wide shot and a close-up of the area
  • Any specification or named product
  • The postcode of the building
  • What the building is and how it’s used

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 will fill any gaps with a visit.

Our process

When we get to site, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before any cutting starts, and the work normally takes a day or two on a small fit-out and several weeks on a large multi-storey package. Rural sites near Ashurst may need directions, gate codes or a contact on site. Send that with the details and we will confirm the plan with the quote.

  1. We price from the drawings, specification and programme you send.
  2. You receive a fixed quote listing scope, products and phasing.
  3. Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
  4. Work follows the programme, area by area, as rooms and elevations become ready.
  5. Every joint is prepared, set to depth and sealed with the specified product.
  6. Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.

Before we start on site

  • Tell staff and tenants when we will be in
  • Agree which areas must stay open
  • Clear stock, furniture or equipment away from the joints

Get a fixed quote

Need a figure for a tender or a budget? We will quote against your scope and drawings you can plan around. If you have questions first, call the office on 01277 525 020 or email us.

Ask for a quote

Related advice

Common questions from Ashurst clients

Is Ashurst off your patch?

No. Places such as Ashurst are covered as much as the big towns. Our area covers London and the South East counties. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Can you work at a site such as Hollands Lane Industrial Estate, by Ashurst?

Yes. Estates, retail parks and business parks around Ashurst, Hollands Lane Industrial Estate among them, are all within reach. To start, just ring 01277 525 020 or email the details over with the unit, the joints involved and your access times.

Can the building stay open while you work?

Yes, with some planning. Tell us your site hours and access windows and we’ll plan around them.

Can you follow the specification on our project?

Yes. Include it with the drawings when you ask for a quote, and we will price the work to it.

What happens if the weather stops external sealing?

External sealant needs a dry joint and a temperature within the product’s range. Frosty or damp mornings can hold up external sealing.

Will you quote for a small job?

We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.

Are you insured?

Yes. We are fully insured, including public liability cover.

Honest limits

Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is one of these:

  • Joint design decisions that belong to the architect or engineer
  • Approving fire stopping as compliant
  • Joints damaged after sign-off by following trades

If in doubt, phone 01277 525 020 or email a schedule or drawings and we will say what we think.

Where we work in Ashurst

  • Cladding and panel joints
  • Brick and block movement joints
  • Floor and skirting junctions
  • Internal decorators’ caulk
  • Sanitary and kitchen joints
  • Window and door perimeters

What the job involves on each surface

Bathrooms, en suites and washrooms

On multi-unit schemes, consistency matters across hundreds of bathrooms. One applicator team gives the same finish everywhere.

External facade and movement joints

Brickwork, blockwork and panel movement joints need a sealant with the right movement capability. Depth is controlled with backing rod so the bead bonds to two sides only.

Facades, frames and programmes in Ashurst

Rainfall across the South East, Ashurst 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, so the external programme keeps a little slack. Ashurst lies roughly 40 miles out from central London. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, and each scheme needs its mastic sealed to programme.

Projects at schools like Ashurst CofE Primary School work to term dates, so mastic is programmed tightly. When units on a site such as Hollands Lane Industrial Estate (1.8 miles east of Ashurst) are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.

Ashurst is about 7 miles north of Shoreham-by-Sea, in West Sussex. We send applicators to Ashurst for mastic packages. Ashurst is one of 373 places in West Sussex on our list for mastic packages. Our Brighton page has more on work in that area.

Postcode districts covered here: BN44. If your site is on Church Lane and School Lane or close by, we can quote for mastic packages. Sites close to Ashurst are covered too, including Partridge Green (2 miles north-east), Dial Post (2 miles north-west), Wiston (2 miles south-west), Littleworth (3 miles north) and Ashington (3 miles west). Bigger towns within reach include Crawley (14 miles north-east), Horsham (9 miles north), Worthing (8 miles south-west), Haywards Heath (11 miles north-east), Burgess Hill (9 miles east) and Littlehampton (12 miles south-west).

Landmarks near Ashurst

Locally, jobs take us to sites close to Fountain Inn, among other places. Other landmarks nearby include Steyning Museum (3.1 miles south). Open spaces near Ashurst include Chanctonbury Hill and Knepp Wildland.

Map of Ashurst © OpenStreetMap contributors
Accreditations

Trusted. Accredited. Insured.