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

Facade and window perimeter sealing in Crockerhill, West Sussex

We carry out facade joint and window perimeter sealing on commercial buildings in Crockerhill. Send details for a fixed quote.

  • Air leaks through failed facade joints
  • Weathered facade joints that have lost their grip
  • Perimeter joints where frames meet the structure
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Need facade sealing in Crockerhill?

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

Facade sealing for commercial buildings in Crockerhill

Every facade quote starts with how the joints will be reached. Tell us about access: whether scaffold is already up, what the client is arranging, and any restrictions on the site, and we will fit the work around it. The enquiries we see most involve damp patches beside frames after rain and perimeter joints where frames meet the structure, across coping and flashing joints, window and door perimeters and cladding panel joints. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Crockerhill is the same: the right product in a properly prepared joint.

Around smaller places like Crockerhill, building work typically means conversions of farm buildings, a few new houses or an extension to a hall or school. Each still needs a proper mastic package: window perimeters, facade joints and internal sealant to the specification.

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.

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

Facade sealing around Crockerhill: how the place shapes the job

At about 51 miles from central London, Crockerhill is within reach of the capital. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, which keeps mastic packages in demand. Crockerhill sits in one of the drier corners of the country, the South East. Even so, frost and condensation on steel and glass are common on winter mornings, so external mastic is timed for workable conditions and agreed with the site manager.

School extensions, at buildings such as Tangmere Primary Academy, normally run to the summer holidays, mastic included. Units on estates such as Chichester Business Park., 0.9 miles west of Crockerhill, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal.

Crockerhill is about 4 miles east of Chichester, in West Sussex. We cover Crockerhill and the rest of West Sussex, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 373 places across West Sussex fall within our area, including Crockerhill. There’s a separate page for Portsmouth, roughly 17 miles from Crockerhill.

If you need facade sealing in PO18, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. If your building is just outside Crockerhill, we cover East Hampnett (1 mile south-west), Norton (1 mile south-east), Aldingbourne (1 mile south), Nyton (1 mile south-east) and Westergate (2 miles south-east). Further afield, our area takes in Worthing (13 miles east), Bognor Regis (4 miles south), Chichester (4 miles west), Selsey (9 miles south-west), Littlehampton (7 miles south-east) and Rustington (8 miles east).

What’s near Crockerhill

Around Crockerhill, our work takes us to commercial buildings near Ormiston Six Villages Academy and The Winterton Arms Public House, among other places. Crockerhill’s nearest station is Barnham station, roughly 2.7 miles south-east. Nearby you’ll also find Tote Copse Castle (1.4 miles south) and Chichester Centre (3.7 miles west). Green spaces nearby include Levin Down.

Map of Crockerhill © OpenStreetMap contributors

Why act early in Crockerhill

Patch repairs over old sealant tend to come back. A full cut-out and reseal costs more on the day but lasts much longer. Converted and older buildings near places like Crockerhill tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

What a job costs comes down to the quantity of joints, how much old material needs removing and the access. Call for a fixed quote once you have the details.

Why choose Mastic Doctor in Crockerhill

  • Fully insured, including public liability cover
  • Specification-led, product-correct work
  • A Constructionline member, so easy to vet
  • Colour agreed before work starts

See our cost guide and our accreditations and insurance.

Crockerhill: questions and answers

Is hospital work, at somewhere like Chichester Centre, something you do?

Yes, provided the work is planned with the site’s estates team. Each area is agreed with the ward or department and the estates team in advance.

Is Crockerhill off your patch?

No. Places such as Crockerhill are covered as much as the big towns. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.

Is any job too small?

Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.

Can you quote from photos?

It depends on the job. Straightforward work can often be priced from photographs and measurements, while larger or less clear jobs get a site visit first.

Is your workmanship covered by a guarantee?

Yes. The 12-month guarantee covers our preparation and application, though not damage or work by other trades.

Will you just go over the old sealant?

No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.

Will you check whether the sealant is causing the leak?

Yes. Photos are often enough to start, followed by a visit if needed. Failed perimeter sealant is a common cause, but not the only one.

What affects the price in Crockerhill

Sealant work doesn’t have a standard rate, since sites vary so much. What we look at:

  • Specialist products, such as fire-rated or hygienic sealants
  • Working within restricted access windows
  • Access and working height
  • The site’s rules and procedures

Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.

Before you send an enquiry

Good information means a firmer quote. Helpful details to send:

  • The postcode of the building
  • Anything awkward about access or site hours
  • When you need the work done
  • The asbestos register, for older buildings

Quotes are fixed against the scope you send, so the cost is agreed before work starts. To start the process, call 01277 525 020 or send details through our quote form.

On site: what to expect

In a busy building, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed, then handed back before we move to the next. If others near Crockerhill need work, visits can be combined. A fixed quote is given before anything starts.

  1. We start with photos, drawings or a visit to see the joints and agree access.
  2. We confirm the joint type, movement and the specified product.
  3. Failed beads are removed in full and both faces cleaned back.
  4. Primer is applied where the maker specifies it.
  5. Rod goes in to fix the depth, then the joint is sealed and tooled.
  6. The finished joints are checked with you.

What we need from you

  • Warn occupants and staff about the work
  • Flag any permit to work we’ll need
  • Tell us your opening times and when work is allowed

Getting a fixed quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call the office on 01277 525 020 or email a schedule or drawings with what you know.

Get a price

Read more

Work for main contractors and building owners

Building owners and managing agents use us on everything from one building to a spread of sites around Crockerhill. Several sites can go on one quote, so there’s one set of paperwork to deal with.

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.

Aftercare for building managers

Once the work is signed off, a little attention goes a long way:

  • Inspect facade joints on a regular cycle
  • Clear debris that holds water against joints
  • Never let anyone seal over old sealant
  • Plan facade sealing alongside redecoration

Following storms, look inside for damp or staining near frames. Catching a new leak early keeps the repair small.

Deal with sections that fail early as soon as they show. A few metres resealed promptly can stop water damage spreading behind the facade.

Signs you need facade sealing in Crockerhill

The wrong product causes its share of trouble: acetoxy-cure silicone may mark stone or corrode certain metals, and an interior product won’t last outdoors. Neutral-cure, facade-grade products are what most external joints need.

Things that usually lead to an enquiry:

  • Failed seals around shopfront and entrance frames
  • Damp patches beside frames after rain
  • Patch repairs that keep failing
  • Facade joints cracked through the middle

Historic houses such as Goodwood House, 2.6 miles to the north-west of Crockerhill, are a reminder of the older buildings in the wider area, where sealing against old stone, brick or timber needs compatible products.

What your quote should include

  • Can the work be phased to keep areas open?
  • Will CSCS-carded applicators be on site?
  • Whether old or failed sealant will be cut out, not overlaid
  • Whether primer will be used where the manufacturer specifies it

How to choose a sealant contractor

Accreditations

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