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

Construction and new-build mastic in Worth, Kent

Mastic packages for new-build and refurbishment projects throughout Worth and nearby, by CSCS-carded applicators. CHAS accredited and fully insured.

  • Frame gaps too wide for sealant alone
  • Internal caulk splitting as the building dries out
  • Failed sealant in an existing building being refurbished
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
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS accredited
£5m PL insurance

Construction mastic for businesses in Worth

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

How we handle construction mastic in Worth

Most of the packages we price run well beyond frames: frame perimeters inside and out, caulking to trims and boards where the specification calls for it, sanitary silicone, kitchens, and the final snag list. One contractor for all of it keeps the responsibility in one place and gives you a consistent finish across the job. Site teams most often ask us about external joints sealed in damp or cold conditions that are now failing and perimeter gaps outside the sealant’s range, across brick and block movement joints, floor and skirting junctions and window and door perimeters. A specialist sealant contractor works differently from a general builder: on jobs in Worth, preparation and product choice get the time they need.

In the countryside around places like Worth, conversion schemes put new frames into old stone, flint, brick or timber. A product that grips an irregular face, with a colour that suits the building’s character, is normally what’s needed.

We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant.

Where
Worth (CT14)
Wider area
Kent
Cover
12 months on every job
Quote
A fixed quote before we start
Call
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

When it isn’t the sealant

Being straight saves everyone time. New sealant won’t cure:

  • Frame gaps too wide for sealant, which the installer needs to correct
  • Damage to finishes by other trades after we’ve sealed
  • Faulty frames rather than failed sealant

If you’re not sure, just give us a call on 01277 525 020 or send photos by email and we’ll give you a straight answer before you book.

Surfaces we seal

  • Sanitary and kitchen joints
  • Brick and block movement joints
  • Cladding and panel joints
  • Internal decorators’ caulk
  • Floor and skirting junctions
  • Window and door perimeters

When to call us in Worth

Wide, tapered or inconsistent gaps around frames are a common problem. Sealant has a range of joint widths it can cope with, so gaps outside that range need sorting by the installer first. We flag them early rather than filling them with sealant that won’t last.

Most enquiries start with one or more of the following:

  • Oversized or tapered gaps around new frames
  • Missed perimeter joints on a new elevation
  • Sanitary sealant damaged by following trades
  • Mastic snags holding up handover

Older buildings in the area around Worth, such as Walmer Castle, which lies south-east of Worth, need care when sealed: the product has to suit soft or historic materials.

Before you book anyone

  • The named product and why it was chosen
  • Will RAMS and insurance details be available?
  • Proof of insurance
  • Do they follow the manufacturer’s priming guidance?

How to choose a sealant contractor

What the job involves on each surface

Window and door perimeters

Perimeter joints between frames and the structure are the weather line on any new building. We use the specified perimeter sealant, typically a low-modulus neutral-cure silicone and set the depth with backing where needed.

Internal decorators’ caulk

Acrylic caulk fills internal gaps around trims, boards and frames ahead of decorating. It’s for gaps that stay still and get painted.

Your questions answered

Our building in Worth is near the coast: does that change the sealant?

It can. Coastal exposure works external joints harder than inland weather. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.

Does your area include sites such as Birnham Farm Business Centre, near Worth?

Yes. Our area takes in Worth and its surroundings, with estates and business parks such as Birnham Farm Business Centre included. A few photographs and the unit address let us price the work.

Do you do fire-rated sealing on new builds?

Where the specification calls for fire-rated or intumescent sealant around service penetrations or linear gaps, we install it to the manufacturer’s tested details. Fire-stopping design and sign-off sit with the designer and building control.

Can you quote from photographs?

It depends on the job. Simple work can often be priced from photographs, and bigger or more complex jobs usually get a visit.

How many days will you need on site?

We plan the time on site around your programme and access. We will give you an estimate of time on site when we quote.

How long will the new sealant last?

Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

What hours do you work?

We’re in the office from 8am until 5pm, Monday to Friday. Let us know your site hours and access windows, and the work will be planned around them.

Diagnose, treat, sign off

We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. Jobs in and around smaller places like Worth are normally planned as a single visit, so we ask for photographs and rough sizes first. That way the right products come on the day.

  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. Sealing follows the programme as areas are released.
  5. Any frame gaps or issues outside our scope are flagged to the site team.
  6. The package is closed out, snags cleared and backed by our 12-month guarantee.

Preparing the site

  • Let us know about inductions and permits
  • Let building users know which areas are affected
  • Clear stock, furniture or equipment away from the joints

Quotes

The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or phone 01277 525 020 or email us if you’d rather talk the job through.

Ask for a quote

Read more

What happens if it’s left?

Some packages split mastic across the window fitter, kitchen fitter and plumber. The result tends to be uneven finishes and arguments about who should seal what. A single mastic package gives one point of responsibility and a consistent finish. Around Worth, 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.

What a job costs comes down to the quantity of joints, what has to come out first and how the joints are reached. Call for a fixed quote once you have the details.

Why appoint us

  • CHAS accredited
  • CSCS-carded applicators
  • One number for every site we cover
  • Work to your specification and the manufacturer’s guidance

Take a look at what affects the cost or how we’re accredited.

New build and refits around Worth

The sea is no more than about 3 miles from Worth. Schemes this close to the sea see their facade joints tested by wind and rain from the day they’re sealed, so we check the specified product suits the exposure before the first bead. Worth sits in one of the drier corners of the country, the South East. Even so, frost and condensation on steel and glass are common on winter mornings, so the external programme keeps a little slack.

Hotel extensions and refits, at places such as The Fleur De Lys Hotel, 1.4 miles to the north of Worth, typically run between busy periods, so the sealing is squeezed into short windows. Hospital estates such as Ramsgate General Hospital, 6 miles to the north-east of Worth, 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.

Worth is about 3 miles north-west of Deal, in Kent. We cover commercial sites throughout Worth, whether it’s a single job or part of a planned programme. 931 places across Kent fall within our area, including Worth. Sites around London have their own page, about 64 miles away.

Commercial sites across CT14 are covered for mastic packages. For a building on The Street, Temple Way and St Crispin Close or nearby, we can quote for mastic packages. Sites close to Worth are covered too, including Felderland (1 mile west), Ham (1 mile south-west), Hacklinge (1 mile south-east), Statenborough (1 mile west) and Sandwich (1 mile north). Nearby towns on our patch include Canterbury (12 miles west), Margate (9 miles north), Dover (8 miles south), Folkestone (14 miles south-west), Ramsgate (6 miles north-east) and Broadstairs (8 miles north-east).

Around Worth

We work on buildings around Sandwich Technology School, The Blue Pigeons pub and Ham Fen. The closest station to Worth is Sandwich station, roughly 1.1 miles north. Other landmarks nearby include Sandown Castle (2.7 miles south-east) and The Precinct Toy Collection (1.5 miles north). Open spaces near Worth include Monk's Wall nature reserve.

Map of Worth © OpenStreetMap contributors

Aftercare for building managers

Regular inspection catches problems early. Specifically:

  • Brief the final clean team to avoid blades near sealant
  • Check frame gaps are within the sealant’s range before sealing
  • Brief following trades on areas that have been sealed
  • Don’t schedule sealing before decorators and flooring are done

Any damage after we’ve finished should go on the snag list right away. We can return to clear snags before handover as agreed in the quote.

Snag items left to the last week put handover at risk. A planned close-out through each area as it completes keeps the list short, and avoids a rush.

Accreditations

Trusted. Accredited. Insured.