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

Mastic sealant contractors in West Itchenor

Sealant work in West Itchenor for main contractors, managing agents and facilities managers: mastic sealing for building owners, managing agents and housing associations, quoted at a fixed price.

  • A mix of products and colours from past repairs
  • The same joint failures repeated across a portfolio
  • Complaints coming in block by block
1
Send details
Tell us about the site, with photos if you have them.
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.
South East, London & Scotland
CHAS accredited
£5m public liability

Mastic sealing across West Itchenor

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

Signs you need mastic sealing in West Itchenor

We often find joints filled solid with no backing rod, so the mastic is glued to the joint bottom too. That three-sided adhesion stops it stretching and splits as the building moves.

Look out for the following:

  • Movement joints with sealant missing
  • Damaged joints in communal entrances and corridors
  • Mastic failing across several blocks on an estate
  • Window mastic that has split and shrunk

Blocks of flats and mixed-use buildings often cluster around stations such as Bosham station (to the north of West Itchenor) and their window and balcony mastic tends to age at the same rate across a building.

Comparing quotes

  • What site paperwork they can supply
  • How joint depth will be controlled
  • Are they CHAS accredited or on Constructionline?
  • Who will actually carry out the work

How to choose a sealant contractor

Mastic sealing in West Itchenor, 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’ll confirm the colours available for the specified product. Site teams most often ask us about leaks at window and door perimeters and occupiers reporting cold air round windows, across external wall and movement joints, balcony and threshold joints and shopfronts below residential blocks. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in West Itchenor it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Owners and agents with buildings around smaller places such as West Itchenor tend to manage small terraces of association properties, converted barns and commercial units. Mastic around frames and on external joints wears out in time, whatever the building.

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
West Itchenor (PO20)
Region
West Sussex
Guarantee
A 12-month guarantee
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Last updated
3 November 2026

When something else is needed

Not every problem is a sealant problem, and we’re upfront when that’s the case. These need a different solution:

  • Leaks through the frame itself rather than the perimeter
  • Misted or failed double-glazed units
  • Roof leaks, gutters or failed flashings that aren’t sealant joints

If you are not sure, just call the office on 01277 525 020 or use the quote form and we will give you a straight answer before you book.

Where we work in West Itchenor

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

How the quote is worked out

Sealant work doesn’t have a standard rate, because every site is different. What we look at:

  • Specialist products, such as fire-rated or hygienic sealants
  • Quantities, in metres or numbers
  • The size and state of each joint
  • Any access equipment needed

Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.

What we need to price the job

Good information means a firmer quote. When you get in touch, include:

  • The site address and postcode
  • Photos of the joints, close up and from further back
  • Rough lengths or quantities, or drawings if you have them
  • What the building is and how it’s used

Let us know the site, the scope and your timescale, and we will put a fixed quote together. The easiest way is to give us a call on 01277 525 020 or send details through our quote form.

Looking after buildings in and around West Itchenor

West Itchenor lies within about 1 mile of the sea. Blocks and commercial buildings facing the sea take the most weather on their window perimeters and external joints. West Itchenor lies roughly 59 miles out from central London. Managed blocks of flats are a big part of commuter-belt property, and window and balcony mastic on them tends to age at the same rate.

Trustees of buildings like St Nicholas' Church can bring frame and external mastic into a planned maintenance list. For owners of several units at places like Southfield Industrial Park., which lies north of West Itchenor, one programme can deal with frame and external mastic across the lot.

West Itchenor is about 5 miles south-west of Chichester, in West Sussex. Commercial clients in West Itchenor use us for work on mastic joints, as part of our coverage of West Sussex. West Itchenor is one of 373 places in West Sussex on our list. For work in that direction, see our Portsmouth page.

Commercial sites across PO20 are covered. If your site is on The Street, Waterstone Close and Spinney Lane or close by, send details and we will quote for mastic joints. If your building is just outside West Itchenor, we cover Bosham Hoe (1 mile north-east), Bosham (2 miles north), Chidham (2 miles north), Broadbridge (3 miles north) and Apuldram (3 miles north-east). Further afield, our area takes in Bognor Regis (8 miles east), Chichester (5 miles north-east), Selsey (6 miles south-east), Littlehampton (15 miles east), Portfield (5 miles north-east) and Yapton (11 miles east).

Around West Itchenor

West Itchenor’s nearest station is Bosham station, roughly 2.9 miles north. Other landmarks nearby include St Richard's Hospital (5 miles north-east) and Chichester Castle (4.7 miles north-east). For a walk, there’s Pilsey Island.

Map of West Itchenor © OpenStreetMap contributors

Questions we’re asked in West Itchenor

Does the sea air around West Itchenor change the choice of sealant?

It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. We check the specified product suits the exposure and pay close attention to preparation.

Is West Itchenor off your patch?

Not at all. West Itchenor is within our area. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.

How do I request a quote?

You can use the quote form on this site; alternatively, call 01277 525 020 or email drawings and photos. Photos, drawings or a joint schedule help us quote quickly.

Can weather delay the job?

Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.

Do you guarantee the mastic work?

Our workmanship carries a 12-month guarantee and we hold public liability insurance.

How long will the new sealant last?

Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.

Will you just go over the old sealant?

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

Work for main contractors and building owners

Hotels, schools, healthcare sites, offices and retail units book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.

We work for building owners and managing agents on sealant work across single buildings or whole portfolios. One quote can cover more than one site, so there’s one set of paperwork to deal with.

Why act early in West Itchenor

Adding sealant to cyclical maintenance is an easy win. Waiting until leaks appear means working under pressure with less control over timing. Older rural buildings around West Itchenor move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.

Pricing mastic joints depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.

What you get with us

  • Workmanship guaranteed for 12 months
  • Fixed quotes based on photographs, drawings or a visit
  • Work carried out by CSCS-carded applicators
  • Over 20 years of commercial sealing

See what affects the cost or how we’re accredited.

Our process

Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed before we move to the next. Smaller jobs around West Itchenor can be grouped with others nearby, which keeps travel down. A fixed quote is given before anything starts.

  1. First comes a look at the joints and, for older buildings, the asbestos records.
  2. The products and programme are set out in a fixed quote.
  3. We strip out the old sealant.
  4. Joint faces are cleaned, backed and resealed.
  5. Buildings are completed in turn.

What we need from you

  • Have the specification and drawings to hand
  • Share your working hours and any access restrictions
  • Tell us which areas need to stay in use

Quotes

The quickest route to a quote is a few photos and the site postcode. Send them through the quote form, or call the office on 01277 525 020 or use the quote form to discuss it first.

Get a price

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