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

Commercial sealant contractors in Westerton, West Sussex

Sealant work for offices, shops, hotels and other commercial buildings across Westerton, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Black mould through washroom sealant that won’t clean off
  • External beads that have gone brittle and cracked
  • Leaks that seem to come through a sealant line
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
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Commercial sealant contractors across Westerton

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

How a job runs

We schedule the visit to fit the site hours and access windows you give us. While we are working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. For a building around Westerton, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.

  1. Send details through our quote form, or ask for a site visit.
  2. The cause is diagnosed and the scope priced as a fixed quote.
  3. Work is phased around your occupiers where areas need to stay in use.
  4. Every failed bead is removed rather than covered.
  5. A suitable product for each joint goes in at the right depth and is tooled.
  6. We check the work with you, and the 12-month guarantee starts.

Getting the site ready

  • Make sure the joints can be reached
  • Tell us your opening times and when work is allowed
  • Let building users know which areas are affected

Ask for a quote

For a fixed quote, give us a call on 01277 525 020 or email drawings and photos. You can also send details through our quote form.

Get a price

Related advice

Commercial sealant contractors in Westerton, done properly

Sometimes a split bead is a symptom rather than the cause. A leak near a frame edge can start in the frame, the cill or the cavity, and repeated splits in a movement joint can mean the joint is too narrow for the movement. Part of the job is telling you when the fix is something other than sealant, so budgets go where they’ll do some good. If you’re dealing with sanitary sealant that has gone black and patchy and external beads that have gone brittle and cracked, we can help, whatever the surface. For commercial sealant work in Westerton, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

We price commercial jobs in Westerton from photos, drawings or a site visit, with the scope listed so everyone knows what’s included.

A job in a smaller place like Westerton is normally a single building. We will want a full list and photographs first, so the right products come on the day and nothing waits for a second trip.

Our workmanship is guaranteed for 12 months. If our installation lets you down in that time, we return and fix it.

Location
Westerton (PO18)
Wider area
West Sussex
Cover
12 months on every job
Price
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Building owners, agents and FMs in Westerton

As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.

Cost factors for sealant joints

What shapes the price:

  • How much there is to seal
  • The product specified
  • Working within restricted access windows
  • Whether old sealant has to be cut out first

The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site rules also count.

What we need to price the job

The more we know, the firmer the quote. When you get in touch, include:

  • Access details, including height
  • Any dates the work must fit around
  • Rough lengths or quantities, or drawings if you have them
  • Photos of the joints, close up and from further back

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, ring 01277 525 020 or email drawings and photos.

Shops, offices and hotels in and around Westerton

Westerton has a number of hotels close by, all within 2 miles. A hotel refurbishment is full of joints that guests will see, and a matched colour keeps them discreet, and the work can be phased so the rest of the hotel keeps trading. Westerton lies roughly 52 miles out from central London. The commuter belt holds a great many offices, retail parks and business parks. If you have premises across the region, one contractor can cover them all.

For a hotel such as The Goodwood Hotel, 0.7 miles north-east of Westerton, the colour of a joint at the bar or the bath matters to the look of the room. Premises within reach of Chichester station (2.5 miles south-west of Westerton) often have busy frontages where joints are seen by everyone passing.

Westerton is about 2 miles north-east of Chichester, in West Sussex. We cover Westerton and the rest of West Sussex, with the same fixed quotes and 12-month guarantee as everywhere else. Westerton is one of 373 places in West Sussex on our list for sealant joints. Portsmouth is covered too, around 15 miles from Westerton.

If you need commercial sealant contractors in PO18, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Sites close to Westerton are covered too, including Strettington (1 mile east), Waterbeach (1 mile north-east), Maudlin (1 mile south), Westhampnett (1 mile south-west) and Shopwyke (1 mile south). Bigger towns within reach include Worthing (15 miles east), Bognor Regis (5 miles south-east), Selsey (9 miles south), Littlehampton (10 miles east), Rustington (11 miles east) and Storrington (14 miles east).

Near you in Westerton

Around Westerton, our work takes us to commercial buildings near Chichester High School For Girls, Westbourne House School and The Coach And Horses Public House and the streets around them. Westerton’s nearest station is Chichester station, roughly 2.5 miles south-west of the centre. Other landmarks nearby include Chichester Castle (2 miles south-west) and Chichester Centre (1.5 miles south-west). Not far away are Kingley Vale National Nature Reserve and Levin Down.

Map of Westerton © OpenStreetMap contributors

What we are called out for in Westerton

Resealing over the top is a false economy we come across often. New silicone has nothing to key into. Getting back to a clean joint then means removing every layer.

If one of these sounds familiar, it’s time for a closer look:

  • Weathered facade sealant that no longer flexes
  • Movement joints packed with grit and debris
  • A top-up bead over failed sealant, now lifting
  • Shrunken sealant along kitchen worktops and splashbacks

Parks like Temple Bar Business Park, 0.5 miles east of Westerton, see tenants come and go, and every move-in brings joints to seal.

Comparing quotes

  • How the existing material will be dealt with
  • Are they CHAS accredited or on Constructionline?
  • Will CSCS-carded applicators be on site?
  • Do they follow the manufacturer’s priming guidance?

Questions to ask before you appoint anyone

Leave it or put it right?

A cheaper quote sometimes means the old bead stays in. New sealant laid on old silicone has nothing to bond to, so it peels. Our prices always include removal of the failed bead and full joint preparation. For buildings around smaller places like Westerton, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Resealing early avoids that.

Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.

Why clients in Westerton choose us

  • One contact handling all your sites
  • Work to your specification and the manufacturer’s guidance
  • Colours confirmed for the specified product
  • Fixed quotes based on photos, drawings or a visit

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

Surface by surface

Washrooms and toilets

Black sealant in a toilet block is normally beyond cleaning. Replacement is the fix: strip, clean, dry and reseal, room by room if that suits the building.

Shop fronts and retail fit-outs

Shop fits put sealant right in front of clients. Counters, display units, shopfront frames and floor trims all need a neat line, frequently colour-matched to the fit-out. We will confirm the colours available for the specified product.

FAQs: Westerton

Is Westerton too small for you to travel to?

Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.

Do hotels near Westerton have to close for sealant work?

Rarely, if ever. We take a few rooms out at a time. Tell us your quiet periods and access windows and we will plan around them.

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

No, never. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.

How many days will you need on site?

It depends on the scope, but the work normally takes a few hours to several days on most single sites, depending on joint lengths and access. For bigger or phased jobs, we will set out a timescale with the quote.

Do you take on multi-site sealant work?

Yes. Send a list of addresses and what’s needed at each, and fixed prices follow, with a suggested sequence.

How do you choose the sealant?

Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

Is failed sealant stripped out, or sealed over?

Removal of the failed sealant is always part of the job. Laying new silicone on old gives it nothing to grip.

Accreditations

Trusted. Accredited. Insured.