Facade Sealing in Keymer
Facade joint and window perimeter sealing on commercial buildings in Keymer. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Weathered facade joints that have lost their grip
- Water coming in around window frames
- New sealant peeling off old mastic
Need facade sealing in Keymer?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How we handle facade sealing in Keymer
Our facade sealing work covers external facade joints, window and door perimeters, cladding panel joints and the perimeter joints where frames meet the structure on offices, blocks and industrial units. Where sealant is the specified fix, we also take on coping and flashing joints. Most enquiries involve damp patches beside frames after rain and weathered joints at frame-to-structure perimeters, on stone and brick facade joints, window and door perimeters and cladding panel joints. For commercial sealant work in Keymer, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.
On a small site around Keymer, the mastic is best done in the fewest visits we can manage. Tell us when scaffold comes down and when decoration finishes, and we’ll plan around those stages.
We sign every job off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.
- Where
- Keymer (BN6)
- Wider area
- West Sussex
- Guarantee
- A 12-month guarantee
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
Our process
Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then reopened once the sealant allows before the next one starts. What matters most for a job in Keymer is a clear list of what needs doing. You’ll then get a fixed price for the work.
- First we review photos, drawings or what we saw on a visit, and agree how each joint will be reached.
- Failed sealant is cut out along its full length.
- Joint faces are cleaned to firm, sound material, with primer where the sealant maker specifies it.
- Closed-cell rod fixes the depth, and the sealant grips two sides only.
- The new sealant goes in and is tooled firmly onto both faces.
- The completed runs are checked with you, then the 12-month guarantee applies.
Before we start on site
- Let building users know which areas are affected
- Point out parking and an unloading spot
- Share the asbestos register for older buildings
Ask for a quote
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, give us a call on 01277 525 020 or email a schedule or drawings.
Related advice
When something else is needed
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Render or concrete edges that have broken away
- Installing or repairing glazing systems
- Providing access systems for the work
If in doubt, call 01277 525 020 or send photos by email and we will say what we think before you book.
Where we work in Keymer
- Coping and flashing joints
- Perimeter joints where frames meet the structure
- Window and door perimeters
- Shopfront frames
- Cladding panel joints
- Stone and brick facade joints
Facades, frames and programmes in Keymer
Keymer lies roughly 40 miles out from central London. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, and each scheme needs its mastic sealed to programme. The South East is one of the drier parts of the UK. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so the external programme keeps a little slack.
Hotel extensions and refits, at places such as The White Horse Hotel (0.8 miles east of Keymer), usually run between busy periods, so the sealing is squeezed into short windows. For contractors on a campus like University of Sussex, 4.4 miles south-east of Keymer, facade and perimeter sealing has to fit around students and term dates.
Keymer is about 2 miles south of Burgess Hill, in West Sussex. We send applicators to Keymer for facade joints. Keymer is one of 373 places we cover in West Sussex. There’s a separate page for Brighton, roughly 6 miles from Keymer.
Business premises anywhere in BN6 are within our area for facade joints. For a building on Flowers Close, The Quadrant and Kymer Gardens or nearby, send details and we’ll quote for facade joints. If your building is just outside Keymer, we cover Hassocks (1 mile west), Ditchling (1 mile east), Clayton (1 mile south-west), Hurst Wickham (1 mile north-west) and Westmeston (2 miles south-east). A short drive away, we cover Crawley (13 miles north), Horsham (13 miles north-west), Worthing (14 miles south-west), Haywards Heath (5 miles north), East Grinstead (15 miles north) and Shoreham-by-Sea (8 miles south-west).
Around Keymer
In Keymer, that means premises near The Greyhound Public House and Downlands Community School, among other places. The nearest railway station is Hassocks station, about 0.5 miles west. Well-known places in the area include The Dene Hospital (3.2 miles north-west) and Clayton Castle (1.2 miles south-west). For a walk, there’s Ditchling Beacon and Bedelands Farm Nature Reserve.
Do you need facade sealing in Keymer?
Sometimes the substrate is the problem: crumbling render, spalling concrete or flaking paint take the sealant with them. When the joint edges need repair first, we say so.
Look out for the following:
- Failed seals around shopfront and entrance frames
- Unsightly perimeter sealant on a visible elevation
- Old perimeter mastic that has dried out
- Leaks at window and door perimeters
Hospital estates such as The Dene Hospital (3.2 miles north-west of Keymer) 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.
Comparing quotes
- Will CSCS-carded applicators be on site?
- Do they follow the manufacturer’s priming guidance?
- Are they CHAS accredited or on Constructionline?
- How long is the guarantee, and what does it include?
For managing agents and facilities managers
Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Keymer. One quote can cover more than one site, so there’s one set of paperwork to deal with.
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Keymer can sit alongside others in a wider programme.
Looking after the joints
After handover, these steps help:
- Keep sills, gutters and drainage paths clear
- Confirm the survey covers external sealants in older buildings
- Don’t wait for a second leak before calling
- Add perimeter sealant to planned maintenance checks
Blocked sills and gutters push water at the joints. Good drainage keeps water moving off the facade.
Get the joint design right when resealing: the right width, backing rod and a sealant with enough movement capability. Repeating a faulty detail just repeats the failure.
Towns and villages near Keymer
What else we do in Keymer
Questions about Keymer
Do you take on work at healthcare sites like The Dene Hospital?
Yes. Healthcare sites are among the places we work. Each area is agreed with the ward or department and the estates team in advance.
Could you schedule work at a campus like University of Sussex for the vacation?
Yes. We plan campus work around teaching, exams and residence turnarounds. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
Can you quote from photographs?
Many jobs can be quoted from photos, drawings or a joint schedule. If the job needs a look first, we will arrange a visit before quoting.
Are you fully insured?
Yes. Our insurance certificate can be sent alongside the quote.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.
What type of sealant goes on window perimeters?
It depends on the joint, the substrate and any specification. BS EN 15651 Parts 1 and 2 cover facade and glazing sealants, and specifications often name them.
Is the work guaranteed?
Yes. It runs for twelve months and covers how we prepared and sealed the joints, though not damage or work by other trades.
What happens if it’s left?
Open facade joints also let air and dirt through: draughts around frames add to heating costs and complaints. A new seal closes the gap for both. Small buildings around Keymer suffer from failed joints as much as large ones. Catching it early means a reseal rather than repairs.
The product called for affects the cost, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site rules also count.
Why clients in Keymer choose us
- Failed material removed, not covered up
- Commercial sealant work since 2005
- Colours chosen to suit frames, cladding or finishes where possible
- Products installed to the manufacturer’s instructions
Take a look at how commercial sealant jobs are priced and our accreditations.