Keeper's Corner mastic sealing
Sealant work in Keeper's Corner for main contractors, managing agents and facilities managers: mastic sealing for building owners, managing agents and housing associations, with a fixed quote first.
- Damaged joints in communal entrances and corridors
- Occupiers reporting cold air round windows
- Movement joints with sealant missing
Mastic sealing for businesses in Keeper's Corner
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing for commercial buildings in Keeper's Corner
Most buildings come with mastic joints nobody has looked at since handover, and it ages quietly: window perimeters, door frames, external joints and communal junctions all rely on it. Once it cracks, hardens or comes away, draughts and water find a way in, and occupiers start reporting it. If you’re dealing with no planned programme for sealant and movement joints with sealant missing, we can help, on external wall and movement joints, shopfronts below residential blocks and communal kitchens and washrooms alike. One point of contact handles commercial sealant work in Keeper's Corner from the first photographs to the final walk-round, whether it’s one building or several.
Owners and agents with buildings around smaller places such as Keeper's Corner tend to manage small terraces of association properties, converted barns and commercial units. Mastic around frames and on external joints wears out in time, whatever the building.
Every job we finish is backed by a 12-month workmanship guarantee, in Keeper's Corner as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Location
- Keeper's Corner (RH6, RH10)
- Wider area
- Surrey
- Guarantee
- 12 months on every job
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Signs you need mastic sealing in Keeper's Corner
Occasionally the substrate fails, not the sealant, such as crumbling render, brick arrises or frame edges. We will tell you if the joint edges need repairing before resealing.
Site and facilities staff are often the first to spot these:
- Water getting in round frames after rain
- Window mastic that has split and shrunk
- Mastic failing across several blocks on an estate
- Movement joints with sealant missing
With historic buildings such as Saint Hill Manor, 4.8 miles to the south-east of Keeper's Corner, in the wider area, owners of older properties around Keeper's Corner should expect mastic to need a product that suits old masonry.
Questions to ask before you book
- Do they follow the manufacturer’s priming guidance?
- Will CSCS-carded applicators be on site?
- How the existing material will be dealt with
- The named product and why it was chosen
What the job involves on each surface
Commercial and mixed-use buildings
Commercial buildings have mastic at shopfronts, entrances and external joints. We work across portfolios on a planned basis.
Window and door perimeters on blocks
Window and door perimeters are where most mastic failure shows. Old perimeter mastic is removed, the joint prepared and new sealant tooled in.
What we can’t put right
Honesty saves time and money. Fresh joints won’t solve:
- Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
- Failed window or door frames, which need a window contractor
- Water coming in from the roof or rainwater goods
Not sure which it is? You can ring 01277 525 020 or email a schedule or drawings and we will tell you honestly before you book.
Where we work in Keeper's Corner
- Balcony and threshold joints
- Communal entrances and stairwells
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- External wall and movement joints
- Shopfronts below residential blocks
Why act early in Keeper's Corner
Failed perimeter mastic lets cold air in around frames and the windows normally get the blame. Resealing the perimeters is often the simpler fix when the frames themselves are sound. For buildings around smaller places like Keeper's Corner, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.
The product called for affects the cost, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.
Why appoint us
- Standard and matched colours in many product ranges
- CSCS-carded applicators
- One phone line for London, the South East and Scotland
- Fully insured
Commercial clients in Keeper's Corner
Building owners and managing agents use us on everything from one building to a spread of sites. Several sites can go on one quote, which keeps the paperwork simple.
Main contractors use us as their sealant subcontractor. Programme, specification and site rules come first.
On site: what to expect
Diagnose, treat, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. Smaller jobs around Keeper's Corner can be grouped with others nearby, which keeps travel down. A fixed quote is given before anything starts.
- We inspect each building and record the joints that have failed.
- You get a fixed quote, per block or for the whole programme.
- We agree the programme and dates with you.
- Old mastic is removed and the joint faces prepared.
- New sealant goes in with backing rod and primer where needed.
- We check the finished work and confirm the guarantee.
What we need from you
- Share your working hours and any access restrictions
- Tell us which areas need to stay in use
- Clear stock, furniture or equipment away from the joints
Quotes
To get a fixed quote, speak to us on 01277 525 020 or send details through our quote form, telling us the site location and the nature of the job. You can also send details through our quote form.
Advice
Looking after buildings in and around Keeper's Corner
Keeper's Corner lies roughly 24 miles out from central London. Managed blocks of flats are a big part of commuter-belt property, and window and balcony mastic on them tends to age at the same rate. Keeper's Corner is in the South East, one of the UK’s drier regions. External mastic still waits for dry faces and the right temperature, and south- and west-facing elevations, which take the most sun and rain, often age first.
Older community buildings, Church of St Bartholomew among them, often have frames of mixed ages whose mastic varies. For a school such as Copthorne CofE Junior School, perimeter mastic on windows and doors is a holiday job.
Keeper's Corner is about 3 miles south-east of Horley, in Surrey. We cover commercial sites throughout Keeper's Corner. 379 places across Surrey fall within our area, including Keeper's Corner. Brighton is covered too, around 22 miles from Keeper's Corner.
We cover the RH6 and RH10 postcode districts. Streets here include Effingham Road and Redehall Road. Main routes into Keeper's Corner include the B2037, which helps when planning parking and deliveries for the job. Close to Keeper's Corner, our area also takes in Burstow (1 mile west), Shipley Bridge (1 mile west), Copthorne (1 mile south-west), Fernhill (1 mile west) and Smallfield (1 mile north). A short drive away, we cover Epsom (14 miles north-west), Horley (3 miles north-west), Redhill (6 miles north-west), Ewell (15 miles north-west), Reigate (7 miles north-west) and Caterham (9 miles north).
What’s near Keeper's Corner
Recent enquiries here include premises near The Curious Pig in the Parlour pub and Oakwood School, among other places. The closest station to Keeper's Corner is Gatwick Airport station, roughly 2.3 miles west. Well-known places in the area include Langley Green Hospital (3.9 miles west) and Effingham Park Motor Museum (1.1 miles south-east). Not far away are Hedgecourt Lake.
Places near Keeper's Corner
What else we do in Keeper's Corner
FAQs: Keeper's Corner
Will you work in a care home in Keeper's Corner without moving residents out?
Yes. We work around residents’ routines, a room or two at a time. Tell us about any infection-control or safeguarding requirements and we’ll work to them.
Is Keeper's Corner off your patch?
Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.
When is resealing likely to be due?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.
Can you plan resealing across several buildings?
Yes. We survey and price each building, then work through them in order starting wherever is most urgent.
What if the old mastic contains asbestos?
We don’t remove asbestos-containing materials. Anything suspect is tested before we carry on in line with the dutyholder’s asbestos management.
How long does a job like this take?
The duration is planned around your programme and the access we are given. We’ll give you an estimate of time on site when we quote.
Does weather matter for sealant work?
It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.