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

East Hampnett mastic sealing

Commercial sealant work in East Hampnett for contractors, FMs and building owners: mastic sealing for building owners, managing agents and housing associations, with a fixed quote first.

  • Cracked, hardened mastic round windows on a block
  • A mix of products and colours from past repairs
  • Failed external movement joints
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
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
Constructionline member
£5m PL insurance

Mastic sealing in East Hampnett

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

Questions about East Hampnett

Do you work for managing agents with blocks near Barnham station?

Yes, and several blocks can go on one quote. Photos of each elevation help us quote accurately.

Can you work at a site such as Chichester Business Park., by East Hampnett?

Yes. Estates, retail parks and business parks around East Hampnett, Chichester Business Park. Among them, are all within reach. A few photographs and the unit address let us price the work.

Is it fine to apply new sealant on top of old?

No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.

Does weather matter for sealant work?

Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

Do you do block-wide mastic programmes?

Yes. Each building is inspected, quoted and scheduled in turn starting wherever is most urgent.

Is East Hampnett in your area?

Yes. We cover East Hampnett, and you can phone 01277 525 020 or use the quote form to get started.

How long does a job like this take?

We plan the time on site around your programme and access. We will give you an estimate of time on site when we quote.

Mastic sealing in East Hampnett, done properly

Different joints need different sealants. Low-modulus neutral-cure silicone suits many window perimeters and external movement joints, while hybrid polymer sealants grip many materials and are often paintable. We will confirm the colours available for the specified product. We work on balcony and threshold joints, external wall and movement joints and communal entrances and stairwells, and what we’re called in for most is water getting in round frames after rain and a mix of products and colours from past repairs. Looking for mastic applicators who cover East Hampnett? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.

In and around smaller places like East Hampnett, landlords and agents often look after small groups of housing association properties, converted farm buildings and community buildings. Frame and wall-joint mastic on all of them ages and hardens.

What our 12-month guarantee covers is the way we did the job: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

Place
East Hampnett (PO18)
Region
West Sussex
Cover
A 12-month guarantee
Quote
Quoted before any work starts
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Do you need mastic sealing in East Hampnett?

Buildings move with temperature and moisture, and every joint has to stretch and squeeze with them. If the joint or the product wasn’t suited to the movement, it splits long before it should.

Site and facilities staff are often the first to spot these:

  • Water getting in round frames after rain
  • Open joints in brickwork or panels
  • Old repairs sealed over failed mastic
  • Draughts at frames across a block

For owners of several units at places like Chichester Business Park., 0.6 miles west of East Hampnett, one programme can deal with frame and external mastic across the lot.

Comparing quotes

  • Do they follow the manufacturer’s priming guidance?
  • How joint depth will be controlled
  • Is the sealant right for the movement and the substrate?
  • Can the work be phased to keep areas open?

How to choose a sealant contractor

What happens if it’s left?

Resealing ahead of leaks keeps it to a maintenance task. After water has got in, there may be damp, damaged plaster or decoration to put right too and occupiers notice. For buildings around smaller places like East Hampnett, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.

Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote and we will put a fixed figure on it.

Why us?

  • Constructionline member
  • Colours confirmed for the specified product
  • Standard and matched colours in many product ranges
  • Fully insured, including public liability cover

Take a look at how commercial sealant jobs are priced and how we’re accredited.

Frames, entrances and external joints in East Hampnett

Central London is about 52 miles from East Hampnett. 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. Rainfall across the South East, East Hampnett included, is lower than in many parts of the UK. External mastic still waits for dry faces and the right temperature, while the elevations that take the most sun tend to show hardened mastic first.

If you manage student housing near a university such as University of Chichester, 2.6 miles to the south-west of East Hampnett, the summer turnaround is the time for mastic. Buildings close to stations like Barnham station, 2.8 miles to the south-east of East Hampnett, are often flats over shops, with frame mastic to keep sound.

East Hampnett is about 4 miles east of Chichester, in West Sussex. We send applicators to East Hampnett for mastic joints. 373 places across West Sussex fall within our area, including East Hampnett. Our Portsmouth page has more on work in that area.

Work on mastic joints is covered throughout PO18, whatever the building. Among the streets we cover are Marsh Lane and East Hampnett Lane. Nearby places we also cover include Crockerhill (1 mile north-east), Norton (1 mile east), Aldingbourne (1 mile south-east), Nyton (1 mile south-east) and Westergate (2 miles south-east). Bigger towns within reach include Worthing (13 miles east), Bognor Regis (4 miles south), Chichester (4 miles west), Selsey (9 miles south-west), Littlehampton (8 miles east) and Rustington (9 miles east).

Landmarks near East Hampnett

Recent enquiries here include premises near The Winterton Arms Public House and Ormiston Six Villages Academy, among other places. East Hampnett’s nearest station is Barnham station, roughly 2.8 miles south-east of the centre. Well-known places in the area include The Chichester City Museum (3.7 miles west) and Tote Copse Castle (1.2 miles south). Green spaces nearby include Levin Down.

Map of East Hampnett © OpenStreetMap contributors

Should maintenance staff do it?

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. For that reason, many FMs and contractors use a sealant specialist from the outset.

Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong usually costs more in the end than doing them right.

How a job runs

We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. Rural sites near East Hampnett may need directions, gate codes or a contact on site. Send that with the details and we’ll confirm the plan with the quote.

  1. We check the asbestos register for older buildings and look at the joints.
  2. The products and programme are set out in a fixed quote.
  3. We strip out the old sealant.
  4. The joints are prepared and resealed with the right product.
  5. We finish each building before moving to the next.

Preparing the site

  • Clear stock, furniture or equipment away from the joints
  • Tell us your opening times and when work is allowed
  • Arrange parking or a loading space

Ask for a quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. For smaller jobs, photographs and a description will do.

Ask for a quote

Related advice

How the quote is worked out

There’s no standard rate for sealant work, because every site is different. What we take into account:

  • The product specified
  • Joint width, depth and condition
  • How accessible the joints are
  • Whether the work must be split into stages

We don’t publish prices, since every building and every scope is different. For a fixed figure, call for a quote.

Before you send an enquiry

A good diagnosis starts with the right details. Let us know:

  • The postcode of the building
  • Your programme or deadline
  • Specification clauses that apply
  • Asbestos survey details if the building is older

For a fixed quote, call 01277 525 020 or send photos by email with the site address and an outline of the work. Our quote form is another easy route.

What sealant work can’t fix

We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:

  • Cracked or crumbling render, brick or stone at the joint edges (we’ll tell you if so)
  • Glazing that needs replacing
  • Leaks through the frame itself rather than the perimeter

If you’re not sure, just speak to us on 01277 525 020 or email the details over and we will give you a straight answer before you book.

Joints and surfaces we work on

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

Trusted. Accredited. Insured.