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

Facade and window perimeter sealing in Rusthall, Kent

Facade joint and window perimeter sealing on commercial buildings in Rusthall and across Kent. CHAS accredited and fully insured, with a 12-month guarantee.

  • Staining on stone next to old sealant
  • Old perimeter mastic that has dried out
  • Cladding panel joints that have opened up
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
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Need facade sealing in Rusthall?

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

From enquiry to sign-off

At the end of each section, the masking comes off, the area is cleaned and every joint is checked with your site contact. If an area should be left alone while the sealant cures, we say how long and put signs out. If neighbouring businesses or buildings around Rusthall need work too, visits can be combined. Mention the building’s opening times and we will 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. Sealant is gunned in and tooled hard onto both faces.
  6. Once signed off, the work carries our 12-month guarantee.

Preparing the site

  • Have the specification and drawings to hand
  • Agree which areas must stay open
  • Make sure the joints can be reached

Get a fixed quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call 01277 525 020 or send details through our quote form with what you know.

Get a price

Related advice

Facade sealing in Rusthall

External sealing depends on the weather more than most trades. The sealant needs a dry joint and temperatures inside the maker’s limits. We build that into the programme and tell you if the forecast changes the plan. If you are dealing with weathered joints at frame-to-structure perimeters and failed sealant on precast panel joints, we can help, whatever the surface. One point of contact handles commercial sealant work in Rusthall from the first photos to the final walk-round, whether it’s one building or several.

Conversions around smaller places like Rusthall often join new frames to old masonry or timber, and the sealant at those junctions has to cope with two materials that move differently.

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

Place
Rusthall (TN4, TN3)
Region
Kent
Cover
12 months on our workmanship
Price
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

When something else is needed

Honesty saves time and money. New sealant won’t cure:

  • Joints too narrow for the movement they take, which need redesign
  • Leaks from roofs, gutters or failed flashings rather than sealant joints
  • Replacing glass or failed glazing units

If you are not sure, just call 01277 525 020 or send details through our quote form and we’ll give you a straight answer.

Joints and surfaces we work on

  • Stone and brick facade joints
  • Perimeter joints where frames meet the structure
  • Shopfront frames
  • Coping and flashing joints
  • Window and door perimeters
  • Cladding panel joints

When to bring in a specialist

A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

What sets the cost

Each job is priced on its own details. The main factors are:

  • Location, for remote and island sites
  • Site requirements such as inductions and permits
  • How much there is to seal
  • Access and working height

Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.

What we need to price the job

A good diagnosis starts with the right details. Tell us:

  • Any dates the work must fit around
  • Where the site is, with the postcode
  • Photos of the joints, close up and from further back
  • The type of building and who uses it

Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. For smaller jobs, photographs and a description will do.

Your questions answered

Will you take on work at estates like Speldhurst Business Park, close to Rusthall?

Yes, sites like Speldhurst Business Park are within our area, along with the rest of Rusthall. A few photos and the unit address let us price the work.

Can you work around term dates at a campus such as Canterbury Christ Church University - Salomons?

Yes. Education sites usually 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 will confirm them alongside the quote.

Are you CHAS accredited?

Yes. We’re CHAS accredited and a Constructionline member, which helps with supplier vetting.

Do we need an asbestos check before resealing?

It’s worth checking in any building from before 2000. The duty to manage asbestos sits with the dutyholder, so ask for it before we start. If asbestos is suspected, work stops until it is tested.

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

No. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.

How long does a job like this take?

It depends on the scope, but the work typically takes longer on a full elevation than on a handful of window perimeters, and it always depends on dry weather. Larger or phased jobs take longer, and we will give you a timescale with the quote.

Will you quote for a small job?

Small jobs are welcome alongside larger packages. Photos and a description are enough to start.

Facade sealing around Rusthall: what changes locally

The area within 2 miles of Rusthall holds plenty of hotels. When hotels extend or refit, the work is typically squeezed between peak periods, mastic included. Rusthall sits in one of the drier corners of the country, the South East. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so we time external mastic for dry faces and agree it with the site team.

For contractors on a campus like Canterbury Christ Church University - Salomons, 1.2 miles north-east of Rusthall, facade and perimeter sealing has to fit around students and term dates. Extensions at sites like Tunbridge Wells Nuffield Hospital (2.1 miles east of Rusthall) normally sit beside working departments, and the mastic follows strict access rules.

Rusthall is about 2 miles west of Royal Tunbridge Wells, in Kent. Anywhere in TN4, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. 931 places across Kent fall within our area, including Rusthall. We also cover Brighton, around 26 miles from Rusthall.

We take on facade joints across the TN4 and TN3 postcode area. If your site is on Rusthall High Street, Hill View Road and Manor Road or close by, send details and we will quote for facade joints. Close to Rusthall, our area also takes in Langton Green (1 mile west), Bullingstone (1 mile north-west), Speldhurst (1 mile north-west), Stockland Green (1 mile north) and Broadwater Down (2 miles south-east). Nearby towns on our patch include Sevenoaks (10 miles north), Tonbridge (5 miles north-east), Kings Hill (12 miles north-east), Paddock Wood (7 miles east), Edenbridge (9 miles north-west) and Staplehurst (14 miles east).

Near you in Rusthall

We work on buildings around Bennett Memorial Diocesan School, Rose Hill School and The Oak pub, among other places. Rusthall’s nearest station is Tunbridge Wells station, roughly 1.5 miles east. Nearby you will also find Tonbridge Castle (4.5 miles north-east) and Kent and Sussex Hospital (1.3 miles east). Green spaces nearby include Barden Lake and Broadwater Warren RSPB Reserve.

Map of Rusthall © OpenStreetMap contributors

When to call us in Rusthall

When the sealant tears down its centre, it has usually been asked to move more than it can. Too thin a bead, too narrow a joint or a product with the wrong movement class are common reasons.

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

  • Leaks at window and door perimeters
  • Gaps between rainscreen or cladding panels
  • Perimeter joints where frames meet the structure
  • Facade joints cracked through the middle

When units on a site such as Speldhurst Business Park (to the north-west of Rusthall) are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.

Questions to ask before you book

  • Is the sealant right for the movement and the substrate?
  • What level of public liability insurance do they hold?
  • Whether old or failed sealant will be cut out, not overlaid
  • The terms of the workmanship guarantee

Questions to ask before you appoint anyone

Building owners, agents and FMs in Rusthall

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.

We work for building owners and managing agents on everything from one building to a spread of sites. Several sites can go on one quote, which keeps the paperwork simple.

Accreditations

Trusted. Accredited. Insured.