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

Commercial sealant contractors in Compton, West Sussex

Work needed on a sealant joint in Compton? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • A top-up bead over failed sealant, now lifting
  • Weathered facade sealant that no longer flexes
  • Wall and floor joints that have lost their seal
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
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
Constructionline member
£5m PL insurance

Commercial sealant contractors for businesses in Compton

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Commercial sealant contractors for commercial buildings in Compton

On a commercial site, sealant turns up in more places than people expect: around sanitaryware, along worktops and splashbacks, at window boards, partition heads and floor junctions. Outside, it closes facade joints, frame perimeters and movement joints against the weather. We deal with internal and external sealant joints alike, matching the sealant to the location instead of using one product throughout. If you have shrunken sealant along kitchen worktops and splashbacks and damp patches where an external joint has failed, we can put it right, whatever the surface. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Compton, preparation and product choice get the time they need.

Occupied buildings in Compton need the work phased: washrooms in turn, floors in sections and entrances kept open.

Rural business units near smaller places such as Compton are frequently converted agricultural buildings. Their mix of old walls with new frames, partitions and floors means many joints between unlike materials.

Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

Location
Compton (PO18)
Wider area
West Sussex
Cover
12 months on our workmanship
Quote
Fixed quote, scope in writing
Call
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Our process

In a busy building, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed, then reopened once the sealant allows before we move to the next. Jobs in and around smaller places like Compton are typically planned as a single visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.

  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. Old sealant is cut out completely, never sealed over.
  5. Each joint gets a suitable sealant, laid to depth and tooled.
  6. A final walk-round, then the 12-month guarantee applies.

Getting the site ready

  • For older buildings, check the asbestos register before work
  • Tell us your opening times and when work is allowed
  • Tell us what induction or permit system the site runs

Ask for a quote

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.

Get a quick quote

Related advice

Aftercare for building managers

Problems stay small when the joints are checked regularly. In particular:

  • Ask cleaners to use a soft cloth and mild cleaner on sealant
  • Don’t let cleaning or traffic back on before the cure time is up
  • Keep a record of which joints were resealed and when
  • On pre-2000 buildings, share the asbestos information before work starts

In washrooms and kitchens, extraction makes a real difference to sealant life. Fans that are broken or switched off leave joints damp for longer, which is how mould gets back in. It’s worth having fans checked while the sealant is fresh.

A failed external joint lets water in every time it rains. Behind a panel or frame, that water can sit unseen for a long time. Catching it at the sealant stage avoids the bigger repair.

What happens if it’s left?

Some managers wait for a fit-out before touching the mastic. For internal joints that are only cosmetic, that can make sense, but external and wet-area joints that already leak shouldn’t wait. We can seal the urgent joints now and leave the rest for the programme. Older rural buildings around Compton move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.

Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.

Why choose Mastic Doctor in Compton

  • Sealing commercial buildings since 2005
  • Public liability insurance in place
  • RAL and finish matching where the product range allows
  • Work to your specification and the manufacturer’s guidance

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

Common problems we fix in Compton

A good share of the joints we inspect were topped up instead of being renewed. New silicone has nothing to key into, so the top layer lifts, holds water and hides what’s going on. By the time it shows, there can be two or three layers to cut out.

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

  • Frame mastic that has hardened and come away from the wall
  • Movement joints packed with grit and debris
  • External beads that have gone brittle and cracked
  • Greasy, split joints in a kitchen or tea point

Offices and shops close to stations such as Rowlands Castle station, 3.6 miles to the south-west of Compton, tend to be busy all day, so sealant work is planned around opening hours.

What to look for in a quote

  • How they handle RAMS and site documents
  • Will failed sealant be removed rather than covered?
  • Is the sealant right for the movement and the substrate?
  • Their public liability cover

How to choose a sealant contractor

When to bring in a specialist

Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

What the job involves on each surface

Shop fronts and retail fit-outs

In retail, sealant is on show. Joints around counters, displays and shopfront frames have to look tidy as well as seal. We will confirm the colours available for the specified product.

Washrooms and toilets

Around WCs, urinals, vanity tops, IPS panels and cubicles, sealant is wet most of the day. We cut out mouldy or split beads and reseal in anti-mould sanitary silicone, phasing the rooms so not every toilet is closed at once.

FAQs: Compton

Is Compton off your patch?

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.

Can the sealant on our Compton premises match the finishes?

Yes. Colour matching to frames, cladding, stone and shop-fit finishes is a regular part of the work. Available colours for the product are confirmed with the quote.

How is commercial sealant work priced?

Start with whatever information is to hand. Questions or a site visit follow where needed, then a fixed quote.

How long do sealant joints last?

There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

Could the old sealant in an older building contain asbestos?

It’s possible in older buildings, especially those built before 2000. We ask to see the asbestos register or survey before disturbing old sealant, and anything suspect is left until it has been tested.

Can you follow the specification on our project?

Yes. Send it with your enquiry, and we will price the work to it, flagging anything that needs clarifying.

Who decides which product is used?

A specification, where there is one, decides it. Without one, the joint decides: its movement, its surfaces and what it has to cope with.

Commercial sealant contractors around Compton: how the place shapes the job

Compton is in the South East, one of the UK’s drier regions. External joints still need dry faces and the right temperature, and damp or frosty mornings can hold work up. Compton lies roughly 53 miles out from central London. The South East around the capital has large numbers of business parks, offices and retail centres, especially around the motorway corridors. Occupiers with several premises in the region tend to prefer one contractor and one point of contact.

For any commercial premises in Compton, a lasting joint depends on full removal of the old sealant and clean, dry faces.

Compton is about 5 miles east of Horndean, in West Sussex. We cover commercial sites throughout Compton, for single jobs and planned programmes alike. Compton is one of 373 places in West Sussex on our list for sealant joints. There’s a separate page for Portsmouth, roughly 11 miles from Compton.

Commercial sites across PO18 are covered for sealant joints. For a building on Church Lane and School Lane or nearby, we can quote for sealant joints. Sites close to Compton are covered too, including East Marden (2 miles east), South Harting (3 miles north), East Harting (3 miles north-east), Chilgrove (4 miles east) and Elsted (4 miles north-east). Bigger towns within reach include Bognor Regis (13 miles south-east), Chichester (8 miles south-east), Selsey (14 miles south), Portfield (9 miles south-east), Yapton (15 miles south-east) and East Wittering (11 miles south).

Local landmarks in Compton

We work on buildings around The Coach And Horses Public House. Compton’s nearest station is Rowlands Castle station, roughly 3.6 miles south-west. A little further out are Petersfield Community Hospital (5.7 miles north) and Clanfield Earthwork (4 miles west). Not far away are Kingley Vale National Nature Reserve and Compton Down.

Map of Compton © OpenStreetMap contributors
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