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

Facade Sealing in Highbrook

Facade joint and window perimeter sealing on commercial buildings in Highbrook. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Weathered joints at frame-to-structure perimeters
  • Cold air coming in at window perimeters
  • Gaps between rainscreen or cladding panels
1
Send details
Tell us about the site, with photos if you have them.
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
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Facade sealing for Highbrook sites

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

Why deal with it now?

The longer a failed joint is left, the more the substrate suffers: wet edges break down, so repairs may be needed before resealing. Early action keeps it simple. Halls, stores and units around places like Highbrook may not be checked every day, which gives a failed joint time to do damage. Renewing joints in good time avoids the problem.

No two sites price the same: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.

Why appoint us

  • Old sealant cut out, never sealed over
  • Standard and matched colours in many product ranges
  • CHAS accredited contractor
  • CSCS-carded applicators

Read what affects the cost or how we’re accredited.

Facade sealing for commercial buildings in Highbrook

Sealant around windows, doors and cladding panels stops rain reaching the wall behind. When a perimeter bead splits or peels, water finds its way behind frames and into the structure. We remove failed sealant and install a new bead chosen for the joint and how far it moves. We work on window and door perimeters, coping and flashing joints and cladding panel joints, and what we’re called in for most is damp patches beside frames after rain and weathered facade joints that have lost their grip. A specialist sealant contractor works differently from a general builder: in Highbrook, that means joint design, primers and backing rod as standard.

Construction in and around smaller places such as Highbrook 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.

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

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Highbrook (RH17)
Wider area
West Sussex
Cover
12 months on every job
Price
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026

Owners, agents and contractors

Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Sites in Highbrook can sit alongside others in a wider programme across West Sussex.

FAQs: Highbrook

Is a smaller place like Highbrook outside your area?

Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Good photos up front let us bring everything on the first visit.

Does your area include sites such as Horsted Keynes Business Park, near Highbrook?

Yes. We cover Highbrook and the area around it, including industrial estates, business parks and retail parks such as Horsted Keynes Business Park. To start, just call the office on 01277 525 020 or email drawings and photos with the unit, the joints involved and your access times.

What’s the quickest route to a quote?

The quote form is the simplest route, though you can also phone 01277 525 020 or use the quote form. Include photographs or drawings if you have them.

When can you be on site?

Mention the site’s hours and access windows in your enquiry, and we will schedule the work to suit. Our office runs Monday to Friday, 8am until 5pm.

Do you take on multi-site work?

Yes. A group of buildings can go on one quote, with one point of contact.

Can you just add new sealant on top?

No. Overlaying is a shortcut that peels away quickly. Our method is a full cut-out, cleaning, backing and a new bead.

Will you check whether the sealant is causing the leak?

Yes. We look at the perimeter sealant and tell you whether it has failed. Where the cause seems to be elsewhere, we’d rather tell you than reseal pointlessly.

From enquiry to sign-off

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 any cutting starts, and the work normally takes anything from a single day to several weeks, depending on joint lengths, access and the weather. For a building around Highbrook, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.

  1. We plan access and the order of elevations with the client.
  2. We only seal when joints are dry and within the product’s temperature range.
  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.

Getting the site ready

  • Clear stock, furniture or equipment away from the joints
  • Tell us what induction or permit system the site runs
  • Tell us your opening times and when work is allowed

Request a quote

Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.

Get a price

Advice

What sealant work can’t fix

Our job is the joint, not everything around it. On its own, sealant can’t deal with:

  • Water getting in through cracked render or porous masonry
  • Damaged frames that need replacing
  • Arranging specialist high-level access, which is planned with the client

If in doubt, call 01277 525 020 or email a schedule or drawings and we’ll say what we think before you book.

Where we work in Highbrook

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

After the work

For the best life from the joints:

  • Walk the elevations once or twice a year
  • Avoid harsh cleaners on facade sealant
  • Keep sills, gutters and drainage paths clear
  • Report water ingress at frames as soon as it shows

Anything drilled through a facade joint breaks the seal. Ask the installer to reseal it properly using a matching sealant.

Planned resealing is cheaper than reacting to leaks. Regular checks let you renew joints before water gets in instead of after the damage.

Facades, frames and programmes in Highbrook

Rainfall across the South East, Highbrook included, is lower than in many parts of the UK. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so we time external mastic for dry faces and agree it with the site team. Highbrook is about 31 miles from central London. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, and each scheme needs its mastic sealed to programme.

For contractors refurbishing units at places like Horsted Keynes Business Park (1.1 miles south-east of Highbrook), the mastic covers cladding panels, roller-door and window perimeters. With historic properties like Priest House (to the north of Highbrook) in the area, refurbishment work often meets old masonry that needs compatible sealants. Extensions at sites like Princess Royal Hospital (4.6 miles south of Highbrook) usually sit beside working departments, and the mastic follows strict access rules.

Highbrook is about 4 miles north-east of Haywards Heath, in West Sussex. Across the RH17 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. 373 places across West Sussex fall within our area, Highbrook among them. Brighton is covered too, around 16 miles from Highbrook.

We take on facade joints across the RH17 postcode area, whatever the building. Just outside Highbrook, we also work in Ardingly (1 mile south-west), Little London (1 mile west), Sharpthorne (2 miles north), West Hoathly (2 miles north) and Horsted Keynes (2 miles south-east). A short drive away, we cover Crawley (7 miles north-west), Horsham (11 miles west), Haywards Heath (4 miles south-west), Burgess Hill (7 miles south-west), East Grinstead (5 miles north) and Broadfield (7 miles north-west).

Near you in Highbrook

Recent enquiries here include premises near The Ardingly Inn and the streets around them. Highbrook’s nearest station is Balcombe station, about 3.4 miles west of the centre. Other landmarks nearby include Princess Royal Hospital (4.6 miles south) and Parish Museum (2.8 miles south). For a walk, there’s Blunts Wood and Paiges Meadow.

Map of Highbrook © OpenStreetMap contributors

Site staff or a sealant specialist?

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Accreditations

Trusted. Accredited. Insured.