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

Sealant applicators in Colworth

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

  • Layers of sealant, all of them failing
  • Expansion joints with the sealant torn out
  • Untidy joints in a reception, shop floor or lobby
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
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Need commercial sealant contractors in Colworth?

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Cost factors for sealant joints

What shapes the price:

  • Removal of failed or old sealant
  • Any access equipment needed
  • Backing rod, priming and other preparation
  • The product specified

The specified product makes a difference, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.

What we need to price the job

There’s no need for a formal survey. A few details are enough to get going:

  • What the building is and how it’s used
  • The asbestos register, for older buildings
  • Anything awkward about access or site hours
  • The product your specification calls for

A good quote starts with a clear picture: 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.

Commercial mastic work in Colworth

Failed sealant isn’t always the whole story. Water at a window perimeter might be coming from the frame, the cill or the wall behind while a movement joint that keeps tearing may simply be too narrow for the job. We look before we quote and tell you plainly if sealant won’t solve it. We work on floor and threshold joints, external facade joints and movement joints in walls and floors, and what we’re called in for most is movement joints packed with grit and debris and greasy, split joints in a kitchen or tea point. A specialist sealant contractor works differently from a general builder: on jobs in Colworth, preparation and product choice get the time they need.

A lot of what we do in Colworth is replacing sealant that has done its years: hardened, cracked or shrunk away from the faces, and letting water or dirt in.

Work in smaller places such as Colworth tends to come one building at a time: a pub kitchen, a hall, a small office. We plan the visit so everything on the list is done in one go, with the right products and colours on hand.

Every job we finish is backed by a 12-month workmanship guarantee. If a joint we sealed fails because of how it was installed, we come back and put it right.

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

Common problems we fix in Colworth

Every sealant joint is a maintenance item. Its life comes down to movement, UV and weather, how it’s cleaned, how much traffic passes it and what was used in the first place. In commercial buildings those factors tend to act together, so periodic inspection matters more than any date on a schedule.

Common reasons buildings call us in:

  • Wall and floor joints that have lost their seal
  • Greasy, split joints in a kitchen or tea point
  • A top-up bead over failed sealant, now lifting
  • Untidy joints in a reception, shop floor or lobby

Sites a few miles apart, such as The Woodhorn Business Centre and Saltbox Business Park., can share one programme and one point of contact.

Questions to ask before you book

  • Who will actually carry out the work
  • Can the work be phased to keep areas open?
  • What level of public liability insurance do they hold?
  • How the joint faces will be prepared and primed

Questions to ask before you appoint anyone

Our process

When we get to site, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, with the work itself usually taking part of a day on a small job and longer where several buildings or phases are involved. Rural sites near Colworth may need directions, gate codes or a contact on site. Send that with the details and we’ll confirm the plan with the quote.

  1. First, details come to us: photographs, drawings or a schedule of the areas, or we arrange a site visit.
  2. The failure is diagnosed and a fixed quote issued for the work agreed.
  3. Site hours, access windows and the order of areas are agreed before we start.
  4. We strip the failed bead and prepare both faces of the joint.
  5. The depth is set, primer is used where the maker calls for it, and the fresh bead is applied and tooled.
  6. Each area is inspected, signed off and backed by our 12-month guarantee.

What we need from you

  • For older buildings, check the asbestos register before work
  • Point out any areas we must not close
  • Tell us what induction or permit system the site runs

Request a quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to ring 01277 525 020 or send photos by email with what you know.

Get a price

Advice

Questions we’re asked in Colworth

Is Colworth too small for you to travel to?

Not at all. Colworth 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.

Do you cover business parks and estates near Colworth, such as The Woodhorn Business Centre?

Yes. Our area takes in Colworth and its surroundings, with estates and business parks such as The Woodhorn Business Centre included. Photos and a short description are enough for a first look.

What do you need from us to quote?

Start with whatever information is to hand. We follow up with questions or a visit where needed, and then a fixed quote for the agreed scope.

Can you work to our specification?

Yes. We follow the specification, along with the manufacturer’s installation guidance, and any queries are raised before we start.

Is it OK to apply fresh sealant over existing beads?

Full removal is part of every quote. A bead laid on old silicone peels away, so it isn’t something we do.

Can one contractor look after sealant on all our buildings?

Yes. Give us the sites and the scope at each, and we’ll put together a fixed quote and a sensible order of work.

Do you seal on top of existing 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.

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 works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

Sealant on show in Colworth’s commercial buildings

With the shore within about 3 miles, Colworth counts as a coastal location. Exposed frontages near the sea are hard on sealant, so the product has to suit the weather as well as the look. We choose a product rated for the exposure, then confirm the colours available for it. Colworth lies roughly 54 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. Firms with branches across the South East can use one contractor for every site.

If you run an office at a site such as The Woodhorn Business Centre, which lies north of Colworth, the sealant at reception desks, tea points and frames ages with each fit-out. Offices and shops close to stations such as Bognor Regis station, 2.5 miles south-east of Colworth, tend to be busy all day, so sealant work is planned around opening hours.

Colworth is about 2 miles north of Bognor Regis, in West Sussex. Businesses, contractors and managing agents in Colworth can call on us for sealant joints, as part of our coverage of West Sussex. 373 places across West Sussex fall within our area, Colworth among them. Portsmouth is covered too, around 16 miles from Colworth.

We cover the PO20 postcode districts for sealant joints. Just outside Colworth, we also work in Merston (1 mile west), Oving (2 miles north-west), Lagness (2 miles south-west), Runcton (2 miles west) and Shopwyke (2 miles north-west). Further afield, our area takes in Worthing (13 miles east), Chichester (4 miles north-west), Selsey (7 miles south-west), Littlehampton (8 miles east), Rustington (9 miles east) and Storrington (13 miles north-east).

Landmarks near Colworth

In Colworth, that means premises near The Regis School and The Brooks Local Nature Reserve and the streets around them. The nearest railway station is Bognor Regis station, about 2.5 miles south-east. Well-known places in the area include Bognor Regis Museum (2.7 miles south-east) and Tote Copse Castle (1.3 miles north-east).

Map of Colworth © OpenStreetMap contributors

What happens if it’s left?

Putting off a reseal usually moves the cost rather than avoiding it. Water past a frame perimeter or a washroom joint can reach plasterboard, insulation, floor coverings and the ceiling below, and the bill then involves other trades. Resealing while only the sealant has failed keeps the job small. Older rural buildings around Colworth move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.

There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote and we will price your job on its own details.

Why us?

  • RAL and finish matching where the product range allows
  • A range of standard colours, depending on the product
  • Specification-led, product-correct work
  • Colours confirmed for the specified product

Take a look at how commercial sealant jobs are priced or how we’re accredited.

Commercial clients in Colworth

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.

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.

Accreditations

Trusted. Accredited. Insured.