
Construction and new-build mastic in West Itchenor, West Sussex
Sealant work in West Itchenor for main contractors, managing agents and facilities managers: mastic packages for new-build and refurbishment projects, with a fixed quote first.
- New external sealant already peeling away
- Cracks opening in caulked internal joints
- Frame gaps too wide for sealant alone
Construction mastic for businesses in West Itchenor
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Construction mastic in West Itchenor, done properly
Site managers want applicators who turn up with the right cards and paperwork. We are a Constructionline member and CHAS accredited, and every applicator holds a CSCS card, and we are fully insured. RAMS, an insurance certificate and CSCS details can be confirmed with the quote if you tell us what you need. Site teams most often ask us about bath and shower joints scraped during the final clean and old sealant on a refurbishment that needs stripping before new work, on cladding and panel joints, internal decorators’ caulk and window and door perimeters. For commercial sealant work in West Itchenor, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.
For a site near West Itchenor, the mastic visit is planned so the right sealants, primers and backing rod are on hand, timed to the stage the job has reached. Drawings, photographs and the programme let us give a fixed quote.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.
- Place
- West Itchenor (PO20)
- Wider area
- West Sussex
- Guarantee
- 12 months on every job
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Updated
- 3 November 2026

Building and refurbishing in West Itchenor
The sea is no more than about 1 mile from West Itchenor. Coastal exposure means perimeter and cladding joints work harder than on an inland job, so we check the specified product suits the exposure before the first bead. West Itchenor is in the South East, one of the UK’s drier regions. Winter mornings still bring frost and condensation on frames and panels, so the external programme keeps a little slack.
Recladding or extending a unit at a site like Southfield Industrial Park., 2.5 miles north of West Itchenor, brings panel joints and frame perimeters into the programme. On a campus such as University of Chichester (5 miles north-east of West Itchenor), new teaching buildings and residences are normally built and refurbished around the academic year.
West Itchenor is about 5 miles south-west of Chichester, in West Sussex. Looking for construction mastic in West Itchenor? We can help. West Itchenor is one of 373 places we cover in West Sussex. Sites around Portsmouth have their own page, about 9 miles away.
Postcode districts covered here: PO20 for mastic packages. We cover commercial and managed buildings on The Street, Waterstone Close and Spinney Lane. Close to West Itchenor, our area also takes in Bosham Hoe (1 mile north-east), Bosham (2 miles north), Chidham (2 miles north), Broadbridge (3 miles north) and Apuldram (3 miles north-east). Nearby towns on our patch include 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).
Landmarks near West Itchenor
The closest station to West Itchenor is Bosham station, roughly 2.9 miles north. Well-known places in the area include St Richard's Hospital (5 miles north-east) and Chichester Castle (4.7 miles north-east). Green spaces nearby include Pilsey Island.
Looking after the joints
Once the work is signed off, a little attention goes a long way:
- Keep product details for future maintenance
- Use the product the specification names
- Don’t schedule sealing before decorators and flooring are done
- Allow flexibility for external sealing in damp or cold weather
After we’ve 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, and that time depends on the product, temperature and joint depth.
A missed perimeter seal on one window can wet the reveal and the plaster inside. On a new building that means remedial work after decorating and possibly a delayed handover. Checking perimeters before internal finishes go on avoids it.
Signs you need construction mastic in West Itchenor
A new building moves while it dries and settles. Materials lose construction moisture and shrink, which opens up internal joints, particularly where caulk has been used in a joint that moves. Picking a flexible sealant where there’s movement keeps snags down.
Most enquiries start with something like this:
- Sanitary sealant damaged by following trades
- Mastic snags holding up handover
- Existing joints on a refurb that need cutting out and resealing
- Early adhesion failures on new external joints
For a contractor working at a hospital such as St Richard's Hospital (5 miles north-east of West Itchenor), perimeter and facade sealing is planned around patients and deliveries.
Before you book anyone
- Can the work be phased to keep areas open?
- Whether their applicators hold CSCS cards
- Proof of insurance
- What the guarantee covers, and for how long
What sealant work can’t fix
Sealant solves a lot, but not everything, and we’re upfront when that’s the case. These need a different solution:
- Joints damaged after sign-off by following trades
- Oversized gaps that need packing or adjustment by others
- Deciding which fire-stopping product a penetration needs
If you are not sure, just call the office on 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer before you book.
Surfaces we seal
- Floor and skirting junctions
- Window and door perimeters
- Cladding and panel joints
- Sanitary and kitchen joints
- Brick and block movement joints
- Internal decorators’ caulk
Why deal with it now?
It helps to bring the mastic subcontractor in before the package is urgent. Early involvement means gaps, products and access are sorted before the programme bites, which avoids last-minute problems. Called in at the end, the same issues surface during handover. Around West Itchenor, it’s better to renew all the failing joints at once. Send photographs of each area and we will quote for the lot.
No two sites price the same: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
Why choose Mastic Doctor in West Itchenor
- Failed material removed, not covered up
- Work carried out by CSCS-carded applicators
- Fully insured, including public liability cover
- 12-month guarantee on workmanship
Read how commercial sealant jobs are priced and our accreditations and insurance.
Our process
At the end of each section, the masking comes off, the area is cleaned and every joint is checked. Where the sealant needs time to cure before use, we tell you and sign the area. For work around West Itchenor, we aim to finish in one visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.
- Drawings, the sealant specification and your programme come to us for pricing.
- You receive a fixed quote listing scope, products and phasing.
- Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
- Areas are sealed plot by plot or floor by floor as the trades hand them over.
- Each joint is prepared, backed to depth and sealed in the product the specification names.
- Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.
Getting the site ready
- Move anything stored against the joints
- Send any specification or drawings in advance
- Send asbestos survey details if the building is pre-2000
Quotes
Every quote starts with the facts: the joints involved, quantities, access and the product called for. Send what you have, and we will arrange a site visit if anything is unclear.
Read more
Nearby places to West Itchenor
Also in West Itchenor
West Itchenor: questions and answers
Is a smaller place like West Itchenor outside your area?
No. Places such as West Itchenor are covered as much as the big towns. We cover Greater London and the counties of the South East. Good photographs up front let us bring everything on the first visit.
Would you work within a site like St Richard's Hospital?
Yes. We work in healthcare settings as well as offices and schools. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Is it fine to apply new sealant on top of old?
No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.
How long do sealant joints last?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
What site paperwork can you supply?
Requirements differ from site to site, so list what you need, whether RAMS, insurance or CSCS details, and we’ll confirm with the quote.
What guarantee comes with a mastic package?
Our workmanship carries a 12-month guarantee from sign-off. The guarantee covers our work, not later damage by other trades.
Do you install fire-rated sealant as part of a package?
Fire-rated sealant can be included where it’s specified, installed to the product’s tested detail. The design and sign-off belong to the designer, fire engineer or building control.
What the job involves on each surface
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.
Bathrooms, en suites and washrooms
Sanitary joints around baths, showers, basins and WCs need anti-mould sanitary silicone. Joints are cleaned, sealed and tooled neatly, and any bath is loaded with water first where that’s the agreed method.