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

Facade and window perimeter sealing in Hurst Green, East Sussex

Facade joint and window perimeter sealing on commercial buildings in Hurst Green and across East Sussex. CHAS accredited and fully insured, with a 12-month guarantee.

  • Perimeter sealant that has split or peeled away
  • Previous reseals run over old sealant
  • Staining on stone next to old sealant
1
Send details
Photos, drawings or a schedule, or we visit.
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.
London, the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Need facade sealing in Hurst Green?

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Owners, agents and contractors

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.

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

Facade sealing in Hurst Green, done properly

External sealing depends on the weather more than most trades. The sealant needs a dry joint and temperatures inside the maker’s limits, so frosty or damp mornings can hold work back. We build that into the programme and tell you if the forecast changes the plan. If you’re dealing with air leaks through failed facade joints and cladding panel joints that have opened up, we can put it right, on coping and flashing joints, perimeter joints where frames meet the structure and stone and brick facade joints alike. For commercial sealant work in Hurst Green, you deal with one contact from quote to sign-off, whether it’s one building or several.

Construction in and around smaller places such as Hurst Green is often barn conversions, small groups of houses or extensions to halls and schools. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.

The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we are clear about what is covered before work starts.

Location
Hurst Green (TN19)
Region
East Sussex
Guarantee
12 months on every job
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

How a job runs

Occupied buildings need a little choreography. The work area is signed and kept contained, with routes through the building left open and work section by section so the rest of the building stays in use. Smaller jobs around Hurst Green can be grouped with others nearby. You’ll have a fixed quote before work starts.

  1. We plan access and the order of elevations with the client.
  2. Weather and temperature are checked against the product’s limits.
  3. Each joint is cut out and the edges inspected.
  4. Joints are cleaned, primed if required and fitted with backing rod.
  5. Sealant is gunned in and tooled hard onto both faces.
  6. We hand over with our 12-month workmanship guarantee.

What we need from you

  • Clear stock, furniture or equipment away from the joints
  • Send your site hours and access windows
  • Agree which areas must stay open

Request a quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. For smaller jobs, photos and a description will do.

Ask for a quote

Advice

Should maintenance staff do it?

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

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.

Maintenance after handover

Cleaning and maintenance staff play a part too. Share these points with them:

  • Brief window cleaners about newly sealed joints
  • Inspect facade joints on a regular cycle
  • Keep sills, gutters and drainage paths clear
  • Never let anyone seal over old sealant

Record the sealant type and date on the building file. It helps when matching repairs or planning the next reseal without guesswork.

Use each reseal to correct the joint: correct depth, proper backing and a sealant that can take the movement. A well-designed joint lasts longer than a like-for-like copy of a failed one.

What the job involves on each surface

Brick and stone facades

On masonry, the sealant has to suit a porous, textured surface. We avoid acetoxy silicone, which can stain some natural stone, and primers go on where specified.

Coping and flashing joints

Where the specification calls for sealant at copings or flashings, we can seal them. These joints take full exposure to weather, so preparation and product choice matter.

Common questions from Hurst Green clients

Do you cover business parks and estates near Hurst Green, such as Bodiam Business Park?

Yes. Our area takes in Hurst Green and its surroundings, with estates and business parks such as Bodiam Business Park included. A few photos and the unit address let us price the work.

Is hospital work, at somewhere like Hawkhurst Community Hospital, something you do?

Yes, provided the work is planned with the site’s estates team. Each area is agreed with the ward or department and the estates team in advance.

Can you find out why a window is leaking?

Yes. We check the sealant joints and report what we find. If the water seems to come from a roof, sill or the glazing unit instead, we say so.

What type of sealant goes on window perimeters?

Low-modulus, neutral-cure silicone suits many facade and perimeter joints. Hybrid or MS polymer, polyurethane and polysulphide sealants suit others, as the specification or substrate requires.

Can you just add new sealant on top?

No. A bead run over old sealant soon lifts. We remove the failed sealant, clean the faces, set the depth and reseal.

Can you follow the specification on our project?

Yes. The specification and the manufacturer’s installation guidance are what we work to, and any queries are raised before we start.

Can you work while the building is occupied?

Typically, yes. We phase the work so most of the building stays in use.

Common problems we fix in Hurst Green

Overlaying old sealant is a common shortcut that fails quickly. Cured silicone won’t accept a new silicone bead.

Clients usually get in touch after noticing one or more of the following:

  • Patch repairs that keep failing
  • Cold air coming in at window perimeters
  • Sealant pulling away from frames or panels
  • Staining on stone next to old sealant

When units on a site such as Bodiam Business Park (to the south-east of Hurst Green) are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.

What to look for in a quote

  • Are they CHAS accredited or on Constructionline?
  • Their public liability cover
  • How they handle RAMS and site documents
  • Will CSCS-carded applicators be on site?

How to choose a sealant contractor

Contractors’ notes for Hurst Green

Hurst Green is about 41 miles from central London. Construction around the commuter belt mixes station-side flats with refurbished offices and units, so mastic packages have to keep pace with busy programmes. Hurst Green 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 external mastic is timed for workable conditions and agreed with the site manager.

For a contractor working at a hospital such as Hawkhurst Community Hospital (2.3 miles north-east of Hurst Green), perimeter and facade sealing is planned around patients and deliveries. For contractors at a school such as Hurst Green Church of England Primary School and Nursery, sealing has to be finished before term starts.

Hurst Green is about 11 miles north of Hastings, in East Sussex. Commercial clients in Hurst Green can call on us for facade joints. Hurst Green is one of 308 places in East Sussex on our list. We also cover Brighton, some 29 miles away.

We take on facade joints across the TN19 postcode area, for business premises of every kind. If your site is on Station Road, London Road and Great Oak or close by, we can quote for facade joints. Sites close to Hurst Green are covered too, including Cooper's Corner (1 mile north), Burgh Hill (1 mile west), Silver Hill (1 mile south-east), Etchingham (2 miles south-west) and Flimwell (3 miles north-west). Bigger towns within reach include Hastings (11 miles south), Bexhill-on-Sea (12 miles south), Hailsham (14 miles south-west), Crowborough (13 miles west), St Leonards (12 miles south) and Hastings Old Town (12 miles south-east).

Landmarks near Hurst Green

In Hurst Green, that means premises near Robertsbridge Community College and The Old Bull Inn, among other places. For rail, the closest station is Etchingham station, roughly 1.3 miles south-west of the centre. Other landmarks nearby include Ticehurst House Hospital (3.7 miles north-west). For a walk, there’s Bewl Water.

Map of Hurst Green © OpenStreetMap contributors
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