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

Chidham construction mastic

Our CSCS-carded applicators take on mastic packages for new-build and refurbishment projects in Chidham. Send details for a fixed quote.

  • Mastic snags holding up handover
  • Sanitary sealant damaged by following trades
  • Cracks opening in caulked internal joints
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
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
Constructionline member
£5m public liability

Construction mastic for Chidham sites

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

Looking after the joints

After handover, a little attention goes a long way:

  • Brief the final clean team to avoid blades near sealant
  • Ask for joint and product checks before the package is urgent
  • Keep product details for future maintenance
  • Ask installers to correct oversized gaps first

If a joint is damaged after sealing, flag it early. We can return to clear snags before handover, priced as part of the package or separately.

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. A check of every frame before decorators start is worth the time.

Construction mastic in Chidham, done properly

The programme rarely stands still, so the mastic package has to flex with it. The sequence is set with the site team and updated as plots or floors are handed over and we don’t seal before other trades have finished in an area. That keeps the work right first time and saves rework. Site teams most often ask us about snag items on joints that need redoing before handover and different trades sealing to different standards, across internal decorators’ caulk, brick and block movement joints and sanitary and kitchen joints. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Chidham, that means joint design, primers and backing rod as standard.

For a site near Chidham, the mastic visit is planned so the right sealants, primers and backing rod are on hand, timed to the stage the job has reached. Send drawings or photographs and the programme and we will quote to suit.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Chidham (PO18)
Wider area
West Sussex
Cover
A 12-month guarantee
Quotes
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026

Do you need construction mastic in Chidham?

Wide, tapered or inconsistent gaps around frames are a common problem. Every product has limits on how wide a joint it can bridge. We flag them early rather than filling them with sealant that won’t last.

It’s worth sending us details if you spot any of the following:

  • Early adhesion failures on new external joints
  • Frame perimeters left unsealed or poorly sealed
  • Snag items on joints that need redoing before handover
  • Existing joints on a refurb that need cutting out and resealing

Hospital estates such as St Richard's Hospital, 4.6 miles to the east of Chidham, tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan.

What to look for in a quote

  • Will CSCS-carded applicators be on site?
  • How they handle RAMS and site documents
  • Their pre-qualification and accreditations
  • How joint depth will be controlled

Choosing a commercial sealant contractor

When to bring in a specialist

Redoing a failed joint normally 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.

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

Facades, frames and programmes in Chidham

With the shore within about 1 mile, Chidham counts as a coastal location. Schemes this close to the sea see their facade joints tested by wind and rain from the day they’re sealed, and the sealant, primer and backing need choosing with that in mind. There are several hotels within about 2 miles of Chidham. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades.

For a contractor at a hotel such as Millstream Hotel (0.8 miles east of Chidham), the mastic often has to be finished before a reopening date. Building work at universities like University of Chichester, 4.5 miles east of Chidham, is often timed for the summer, mastic included.

Chidham is about 4 miles west of Chichester, in West Sussex. Our applicators travel to Chidham for work on mastic packages. Chidham is one of 373 places we cover in West Sussex. Sites around Portsmouth have their own page, about 9 miles away.

Anyone looking for construction mastic in PO18 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. If your site is on Chidham Lane, Harbour Way and Cot Lane or close by, send details and we’ll quote for mastic packages. Close to Chidham, our area also takes in Nutbourne (1 mile north-west), Bosham (1 mile east), Broadbridge (1 mile east), Hambrook (1 mile north) and Bosham Hoe (2 miles south-east). A short drive away, we cover Bognor Regis (9 miles east), Chichester (4 miles east), Selsey (8 miles south-east), Littlehampton (15 miles east), Portfield (5 miles east) and Yapton (12 miles east).

What’s near Chidham

Recent enquiries here include premises near Bourne Community College. The closest station to Chidham is Nutbourne station, about 1 mile north-west of the centre. Nearby you’ll also find Warblington Castle (4.1 miles west) and St Richard's Hospital (4.6 miles east). For a walk, there’s Nutborne Marshes and Stoke Down.

Map of Chidham © OpenStreetMap contributors

How a job runs

Before we leave any area, the masking comes off, the area is cleaned and every joint is checked with your site contact. If an area should be left alone while the sealant cures, we say how long and put signs out. If others near Chidham need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.

  1. First we look at the scope on site or from drawings.
  2. You receive a fixed quote covering scope, products and sequence.
  3. Site paperwork is confirmed and our CSCS-carded applicators are inducted.
  4. We seal plot by plot or floor by floor in line with the programme.
  5. Any frame gaps or issues outside our scope are flagged to the site team.
  6. Final snagging is completed and the 12-month guarantee applies.

Before we start on site

  • Tell us what induction or permit system the site runs
  • Move anything stored against the joints
  • Share your working hours and any access restrictions

Request a quote

Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. To get it moving, give us a call on 01277 525 020 or use the quote form.

Ask for a quote

Read more

Common questions from Chidham clients

Do you cover business parks and estates near Chidham, such as Southfield Industrial Park.?

Yes. Our area takes in Chidham and its surroundings, with estates and business parks such as Southfield Industrial Park. Included. A few photographs and the unit address let us price the work.

Is Chidham too far out for you?

Not at all. Chidham is within our area. We work across Greater London and the South East. Good photos up front let us bring everything on the first visit.

Can you fit around our programme?

We seal plot by plot or floor by floor as areas are released. The sequence is agreed with the site manager at the start and adjusted as things change.

Is any job too small?

Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.

What joints do you seal on a new build?

The scope comes from the specification and drawings, but most packages include frame perimeters, sanitary and kitchen joints, caulking where specified and a snagging pass.

Can you follow the specification on our project?

Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it, flagging anything that needs clarifying.

Does weather affect external mastic work?

Outside, the joint has to be dry and the temperature within the product’s limits. Damp, frost or condensation on frames can stop work, so internal areas are often done on those days.

Work for main contractors and building owners

Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.

Why deal with it now?

Leaving mastic to whichever trade is fitting the element can look cheaper on paper. The result tends to be uneven finishes and arguments about who should seal what. A single mastic package gives one point of responsibility, with the same standard on every plot. Around Chidham, it’s better to renew all the failing joints at once, rather than one at a time. Photos of every joint help us quote for the whole job.

No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.

Why us?

  • Standard and matched colours in many product ranges
  • Public liability insurance in place
  • Commercial sealant work since 2005
  • 12-month guarantee on workmanship

Take a look at our cost guide or our accreditations and insurance.

Accreditations

Trusted. Accredited. Insured.