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

Facade and window perimeter sealing in Westhampnett, West Sussex

Facade joint and window perimeter sealing on commercial buildings throughout Westhampnett and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Old perimeter mastic that has dried out
  • Draughts around frames and panels
  • Previous reseals run over old sealant
1
Send details
Photos, drawings or a schedule, or we visit.
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
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Facade sealing in Westhampnett

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Facade sealing in Westhampnett, done properly

Facade joints are the line of defence between the weather and the building fabric. When a perimeter bead splits or peels, water finds its way behind frames and into the structure. We remove failed sealant and install a new bead chosen for the joint and how far it moves. If you are dealing with damp patches beside frames after rain and new sealant peeling off old mastic, we can help. Most enquiries from Westhampnett start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.

Construction in and around smaller places such as Westhampnett is often barn conversions, small groups of houses or extensions to halls and schools. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.

A 12-month guarantee applies to all our work. If an installation problem shows up, speak to us on 01277 525 020 or email a schedule or drawings and we’ll arrange a return visit.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Westhampnett (PO18)
Region
West Sussex
Guarantee
12 months on every job
Price
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026

Questions about Westhampnett

Is hospital work, at somewhere like St Richard's Hospital, something you do?

Yes, hospitals are one of the sectors we cover. Each area is agreed with the ward or department and the estates team in advance.

Can work at a site such as University of Chichester fit around teaching?

Yes. Tell us the term dates, vacation periods and access windows, and we’ll 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.

How do we ask for a quote?

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

Do you take on multi-site work?

Yes. Several buildings can share a single quote, and you deal with one contact throughout.

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; if it’s suspected, work stops until it has been tested. We don’t remove asbestos-containing materials.

Is any job too small?

Small jobs are welcome alongside larger packages. Send details for a fixed quote.

Can staff carry on working while you are here?

Yes, as long as we plan it. We agree a sequence with your contact so just one area at a time is disrupted.

After the work

To get the most from the new sealant:

  • Clear debris that holds water against joints
  • Inspect facade joints on a regular cycle
  • Check the asbestos register before old mastic is disturbed
  • Record the product and colour used on each elevation

Anything drilled through a facade joint breaks the seal. Ask the installer to reseal it properly with a compatible product.

Use each reseal to correct the joint: correct depth, proper backing and a sealant that can take the movement. A well-designed joint lasts longer than a like-for-like copy of a failed one.

Facade sealing in Westhampnett: the local picture

Central London is about 53 miles from Westhampnett. Construction around the commuter belt mixes station-side flats with refurbished offices and units, and main contractors there need mastic that keeps to the programme. The area within 2 miles of Westhampnett holds a good number of hotels. Hotel extensions and refits typically have to fit around bookings, so mastic dates are tight.

Projects at colleges like Chichester College, 1.9 miles to the south-west of Westhampnett, tend to run to term dates, so the mastic is planned tightly. Building work at universities like University of Chichester, 1 mile to the west of Westhampnett, is often timed for the summer, mastic included.

Westhampnett is about 1 mile north-east of Chichester, in West Sussex. We cover commercial sites throughout Westhampnett, whether it’s a single job or part of a planned programme. We work across 373 places in West Sussex. Portsmouth is covered too, some 14 miles away.

We take on facade joints across the PO18 postcode area. Buildings on Hill Road, Sears Close and Hamilton Way are within our area for facade joints. We also cover Maudlin (1 mile east), Shopwyke (1 mile south-east), Westerton (1 mile north-east), Portfield (1 mile south-west) and Strettington (1 mile north-east) for facade joints. Bigger towns within reach include Bognor Regis (5 miles south-east), Selsey (8 miles south), Littlehampton (10 miles east), Rustington (11 miles east), Storrington (14 miles east) and Angmering (12 miles east).

Near you in Westhampnett

Locally, jobs take us to sites close to The Coach And Horses Public House, Westbourne House School and Chichester High School For Girls and the streets around them. The nearest railway station is Chichester station, roughly 1.7 miles south-west. Other landmarks nearby include Chichester Castle (1.2 miles south-west) and Chichester Centre (0.8 miles west). Open spaces near Westhampnett include Stoke Down and Kingley Vale National Nature Reserve.

Map of Westhampnett © OpenStreetMap contributors

Do you need facade sealing in Westhampnett?

When the sealant tears down its centre, it has usually been asked to move more than it can. The joint may be too narrow, the bead too thin or the sealant the wrong movement class.

Clients usually get in touch after noticing something like this:

  • Facade joints cracked through the middle
  • Water coming in around window frames
  • Discoloured or dirty facade joints
  • Perimeter joints where frames meet the structure

For a contractor working at a hospital such as St Richard's Hospital (0.8 miles south-west of Westhampnett), perimeter and facade sealing is planned around patients and deliveries.

Questions to ask before you book

  • The named product and why it was chosen
  • How the joint faces will be prepared and primed
  • Who will actually carry out the work
  • Their approach to joint depth and backing

Choosing a commercial sealant contractor

Work for main contractors and building owners

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end.

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Sites in Westhampnett can sit alongside others in a wider programme across West Sussex.

Site staff or a sealant specialist?

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

Redoing a failed joint typically costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.

On site: what to expect

Working in a building that stays open takes some planning. We sign and contain the area we are in, with routes through the building left open and work section by section so the rest of the building stays in use. Rural sites near Westhampnett 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 look at the joints, the drawings and the access before pricing.
  2. The old bead is cut away completely, not overlaid.
  3. Joint faces are cleaned to firm, sound material, with primer where the sealant maker specifies it.
  4. Closed-cell rod fixes the depth, and the sealant grips two sides only.
  5. The new sealant goes in and is tooled firmly onto both faces.
  6. The completed runs are checked with you, then the 12-month guarantee applies.

Before we start on site

  • Explain the parking and delivery arrangements
  • Tell us your opening times and when work is allowed
  • Make sure the joints can be reached

Get a fixed quote

Send us photos, drawings or a joint schedule and a fixed quote comes back to you. Where a site visit makes more sense, we will arrange one.

Ask for a quote

Read more

How the quote is worked out

A fixed quote reflects the actual work. It allows for:

  • Access and working height
  • Site requirements such as inductions and permits
  • The product specified
  • Distance, for remote addresses

There’s no price list, because the scope varies so much from one building to the next. Call for a quote and we will price your job on its own details.

What we need to price the job

A few photographs plus some basic facts will normally do. It helps to include:

  • Anything awkward about access or site hours
  • Whether the building will be occupied during the work
  • A wide shot and a close-up of the area
  • When you need the work done

Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. If you have questions first, speak to us on 01277 525 020 or email us.

Accreditations

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