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

Facade and window perimeter sealing in Worth, West Sussex

Facade joint and window perimeter sealing on commercial buildings throughout Worth and nearby, by CSCS-carded applicators. CHAS accredited and fully insured.

  • Water coming in around window frames
  • Air leaks through failed facade joints
  • Previous reseals run over old sealant
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Facade sealing near Worth

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

Facade sealing in Worth, done properly

Installing framed glazing systems isn’t part of our work. We handle the sealant joints that surround those elements: perimeter joints where frames meet the structure, panel joints and window perimeters. We work on coping and flashing joints, window and door perimeters and stone and brick facade joints, and the failures we are asked to look at most are perimeter joints where frames meet the structure and old perimeter mastic that has dried out. A specialist sealant contractor works differently from a general builder: on jobs in Worth, preparation and product choice get the time they need.

Conversions around smaller places like Worth often join new frames to old masonry or timber, and the sealant at those junctions has to cope with two materials that move differently, in a colour the planners or architect are happy with.

We sign every job off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.

Location
Worth (RH10)
Wider area
West Sussex
Guarantee
12 months on every job
Quote
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Site staff or a sealant specialist?

Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.

General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.

When to call us in Worth

Sometimes the substrate is the problem: crumbling render, spalling concrete or flaking paint take the sealant with them. We tell you when the edges need repairing before resealing.

What tends to prompt an enquiry:

  • Discoloured or dirty facade joints
  • Gaps between rainscreen or cladding panels
  • Damp patches beside frames after rain
  • Previous reseals run over old sealant

For contractors at a school such as Maidenbower Junior School, sealing has to be finished before term starts.

What your quote should include

  • How long is the guarantee, and what does it include?
  • Which product they’ll use, and why it suits the joint
  • Whether primer will be used where the manufacturer specifies it
  • Their approach to joint depth and backing

Our contractor checklist

Surface by surface

Coping and flashing joints

Sometimes the coping or flashing itself has failed. Where the issue isn’t the sealant, we say so.

Perimeter joints at frames and structure

Where framed systems such as shopfronts meet the building structure, there is a perimeter joint to seal. Our work is that perimeter joint rather than the system it surrounds.

How the quote is worked out

These are the things that shape the price:

  • Which sealant the job calls for
  • Any access equipment needed
  • Joint width, depth and condition
  • Distance, for remote addresses

We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote.

What to include in your enquiry

A few photographs plus some basic facts will normally do. It helps to include:

  • Clear photographs of the problem areas
  • The postcode of the building
  • Your programme or deadline
  • Drawings or a marked-up plan, if available

Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. Smaller jobs need nothing more than photos and a few notes.

Mastic packages on Worth sites

At about 27 miles from central London, Worth is within reach of the capital. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, and main contractors there need mastic that keeps to the programme. Crawley, one of the planned towns of the twentieth century, takes in or adjoins Worth. Older buildings from the planned-town decades are often refurbished or reclad, which leaves new perimeter and facade joints.

Units on estates such as Worth Corner Business Centre (under half a mile north of Worth) tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal. Hotel extensions and refits, at places such as Europa Gatwick Hotel, which lies south of Worth, typically run between busy periods, so the sealing is squeezed into short windows.

Worth is about 2 miles east of Crawley, in West Sussex. Anywhere in RH10, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Worth is one of 373 places we cover in West Sussex for facade joints. We also cover Brighton, some 19 miles away.

Anyone looking for facade sealing in RH10 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Among the streets we cover are Worth Road, Banks Road and Saxon Road. We also cover Pound Hill (1 mile north), Maidenbower (1 mile south), Three Bridges (1 mile north-west), Tilgate (1 mile south-west) and Forge Wood (2 miles north). A short drive away, we cover Horsham (8 miles south-west), Haywards Heath (8 miles south), Burgess Hill (11 miles south), East Grinstead (6 miles east), Broadfield (3 miles south-west) and Billingshurst (15 miles south-west).

Around Worth

Recent enquiries here include premises near Oriel High School, Worth Park Gardens and Dem Shish pub. Worth’s nearest station is Three Bridges station, roughly 0.7 miles north-west. Well-known places in the area include Crawley Hospital (2.2 miles west) and County Mall (1.6 miles west). Green spaces nearby include Tilgate Lake.

Map of Worth © OpenStreetMap contributors

Common questions from Worth clients

Can you work around term dates at a campus such as Crawley College?

Yes. Education sites typically want the work in vacations or in phases during term, and we plan to suit. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.

Do you cover business parks and estates near Worth, such as Worth Corner Business Centre?

Yes. Estates, retail parks and business parks around Worth, Worth Corner Business Centre among them, are all within reach. A few photographs and the unit address let us price the work.

When can you be on site?

Mention the site’s hours and access windows in your enquiry, and we will plan around them. You can reach the office between 8am and 5pm, Monday to Friday.

Do you work in Worth?

Yes. We take on work across Worth.

Will you quote for a small job?

Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.

Do you provide access for facade work?

That varies with the building and the access on offer. When you speak to us on 01277 525 020 or send photos by email, describe the access, and we will plan the work with you.

Are you CHAS accredited and on Constructionline?

Yes. We are CHAS accredited, we’re a Constructionline member and we use CSCS-carded applicators.

On site: what to expect

The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. If neighbouring businesses or buildings around Worth need work too, visits can be combined. Mention the building’s opening times and we’ll work within them.

  1. Access, site rules and timing are settled with the client up front.
  2. Weather and temperature are checked against the product’s limits.
  3. We remove the old bead and check the edges are sound.
  4. Faces are cleaned, primed where needed and backed.
  5. Facade-grade sealant goes in and is tooled to a tidy concave profile.
  6. Once signed off, the work carries our 12-month guarantee.

Preparing the site

  • Warn occupants and staff about the work
  • Send asbestos survey details if the building is pre-2000
  • Agree which areas must stay open

Quotes

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, phone 01277 525 020 or use the quote form.

Get a price

Related advice

Work for main contractors and building owners

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Worth can form part of a wider programme.

Building owners and managing agents use us on everything from one building to a spread of sites around Worth. Several sites can go on one quote, so there’s one set of paperwork to deal with.

Accreditations

Trusted. Accredited. Insured.