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

Mastic contractors in West Dean

We carry out mastic packages for new-build and refurbishment projects in West Dean. Send details for a fixed quote.

  • Mastic snags holding up handover
  • Different trades sealing to different standards
  • Internal caulk splitting as the building dries out
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
Constructionline member
£5m public liability

Construction mastic in West Dean

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

About our construction mastic in West Dean

On a new build, the mastic package is one of the last trades through each area, which puts it right on the critical path. Mastic Doctor takes on mastic packages for main contractors and developers with projects in West Dean. We work on cladding and panel joints, internal decorators’ caulk and sanitary and kitchen joints, and what we’re called in for most is missed perimeter joints on a new elevation and cracks opening in caulked internal joints. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in West Dean, preparation and product choice get the time they need.

Conversions of older rural buildings near smaller places such as West Dean 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.

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

The Mastic Doctor team standing beside their branded vans outside an office building
Place
West Dean (PO18)
Region
West Sussex
Cover
12 months on our workmanship
Price
Fixed quote, scope in writing
Call
01277 525 020
Last updated
3 November 2026

West Dean: questions and answers

Is West Dean too far out for you?

No. Small places get the same service as large ones. We work across Greater London and the South East. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

Will you plan work around the academic year at somewhere like University of Chichester?

Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Can you seal external joints in wet or cold weather?

Outside, the joint has to be dry and the temperature within the product’s limits. Damp, frost or condensation on frames can stop work, so internal areas are often done on those days.

Can weather delay the job?

For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.

Are you fully insured?

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

Do you use the sealant named in the specification?

We work to the specification and the manufacturer’s installation guidance. Primers, backing and joint depth follow what the manufacturer sets out.

Do you need to see the site first?

Many jobs can be quoted from photographs, drawings or a joint schedule. If the job needs a look first, we will arrange a visit before quoting.

Why it’s worth doing now in West Dean

Sealing over damaged or contaminated new joints might save a day, but it won’t last. New sealant laid on old or dirty sealant has nothing to bond to, and the defect comes back after handover. We cut out and redo the joint properly. Converted and older buildings near places like West Dean tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.

Why choose Mastic Doctor in West Dean

  • A range of standard colours, depending on the product
  • CHAS accredited contractor
  • Work to your specification and the manufacturer’s guidance
  • RAL and finish matching where the product range allows

Read our cost guide and how we’re accredited.

Facades, frames and programmes in West Dean

Rainfall across the South East, West Dean included, is lower than in many parts of the UK. Even so, frost and condensation on steel and glass are common on winter mornings, so the external programme keeps a little slack. West Dean is about 51 miles from central London. Towns within reach of London tend to keep building, from flats to offices and schools, and each scheme needs its mastic sealed to programme.

Older buildings in the area around West Dean, such as West Dean House, 0.1 miles north-east of West Dean, need care when sealed: the product has to suit soft or historic materials. Hospital estates such as Chichester Centre, 4.1 miles to the south of West Dean, tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan. For contractors on a campus like University of Chichester (4.2 miles south of West Dean), facade and perimeter sealing has to fit around students and term dates.

West Dean is about 4 miles north of Chichester, in West Sussex. Commercial clients in West Dean can call on us for mastic packages, as part of our coverage of West Sussex. West Dean is one of 373 places in West Sussex on our list. Our Portsmouth page has more on work in that area, about 15 miles away.

Commercial sites across PO18 are covered. Close to West Dean, our area also takes in Singleton (1 mile east), Charlton (2 miles east), East Dean (3 miles east), Cocking (3 miles north) and Bepton (4 miles north). A short drive away, we cover Bognor Regis (9 miles south-east), Chichester (4 miles south), Selsey (12 miles south), Littlehampton (13 miles south-east), Rustington (13 miles south-east) and Storrington (14 miles east).

Local landmarks in West Dean

The nearest railway station is Fishbourne station, roughly 4.8 miles south. Other landmarks nearby include Chichester Castle (4.5 miles south) and Museum of Gardening (under half a mile north-east). For a walk, there’s Levin Down and Kingley Vale National Nature Reserve.

Map of West Dean © OpenStreetMap contributors

General trades versus 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.

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.

How a job runs

Inspect, seal, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. Rural sites near West Dean may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.

  1. First we take quantities off the drawings and read through the specification.
  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. We seal each plot or floor as it’s released to us.
  5. Each joint is prepared, backed to depth and sealed in the product the specification names.
  6. We close out snagging and hand over with a 12-month guarantee.

What we need from you

  • Share your working hours and any access restrictions
  • Tell staff and tenants when we will be in
  • Point out parking and an unloading spot

Getting a fixed quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price the work to it. For smaller jobs, photographs and a description will do.

Get a quick quote

Advice

Quoting for work in West Dean

Each job is priced on its own details. The things that drive the figure:

  • Access and working height
  • Which sealant the job calls for
  • Location, for remote and island sites
  • Removal of failed or old sealant

A quote for mastic packages depends on quantities, condition and access, plus any specification you’re working to. Call for a quote.

Details that help us quote

Whether it’s one area or a whole building, these details speed things up:

  • The asbestos register, for older buildings
  • Rough lengths or quantities, or drawings if you have them
  • The type of building and who uses it
  • When you need the work done

The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or call 01277 525 020 or email us to discuss it first.

Different surfaces, different methods

External facade and movement joints

Movement joints in the facade are sealed with a product suited to the expected movement. Depth is controlled with backing rod so the bead bonds to two sides only.

Snagging before handover

Snags typically come from damage by following trades, missed joints or poor earlier work. Snagging can be included or priced separately.

Looking after the joints

For the best life from the joints:

  • Check frame gaps are within the sealant’s range before sealing
  • Use the product the specification names
  • Ask cleaners to use soft cloths around fresh sealant
  • Protect sealed areas from following trades

After we have 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.

Sanitary joints that fail early become defects soon after occupation. Water gets behind trays, vanity tops and panels, leaving the remedial work to the contractor. Proper preparation, with the right silicone first time, keeps it off the defects list.

Accreditations

Trusted. Accredited. Insured.