Cudham facade sealing
We carry out facade joint and window perimeter sealing on commercial buildings in Cudham and the surrounding area. Send photographs or drawings for a fixed quote.
- Discoloured or dirty facade joints
- Leaks at window and door perimeters
- Weathered facade joints that have lost their grip
Facade sealing for businesses in Cudham
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Facade sealing in Cudham
We are often asked to look at water coming in around frames. Failed perimeter sealant is a frequent cause, but not always. We will tell you if we think the leak is coming from somewhere sealant won’t fix. The enquiries we see most involve failed seals around shopfront and entrance frames and perimeter sealant that has split or peeled away, on perimeter joints where frames meet the structure, coping and flashing joints and stone and brick facade joints. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Cudham is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
A great deal of London construction is refurbishment of occupied or part-occupied buildings, alongside new blocks. Replacement windows, recladding and fit-outs leave perimeter and facade joints to seal, often next to people still using the building.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.
- Place
- Cudham (TN14)
- Region
- Greater London
- Guarantee
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
From enquiry to sign-off
At the end of each section, we remove the tape, clean down and inspect every joint. Where the sealant needs time to cure before use, we tell you and sign the area. All of Greater London is in the ULEZ, and kerbside space in Cudham can be scarce. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.
- We start with photos, drawings or a visit to see the joints and agree access.
- We confirm the joint type, movement and the specified product.
- Failed beads are removed in full and both faces cleaned back.
- Primer is applied where the maker specifies it.
- Backing rod is fitted and the new sealant gunned in and tooled.
- The finished joints are checked with you.
What we need from you
- Send any specification or drawings in advance
- Explain the parking and delivery arrangements
- Let us know about inductions and permits
Get a fixed quote
Send us photos, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.
Related advice
When something else is needed
Being straight saves everyone time. New sealant won’t cure:
- Render or concrete edges that have broken away
- Specialist high-level access methods
- Joints whose design needs changing by the specifier
Not sure which it is? You can ring 01277 525 020 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Perimeter joints where frames meet the structure
- Coping and flashing joints
- Cladding panel joints
- Shopfront frames
- Window and door perimeters
- Stone and brick facade joints
What happens if it’s left?
If access is already up for other work, resealing at the same time makes sense. Combine it with planned external works and you only arrange access once, which is often the biggest saving. Repeat call-outs disrupt occupied London buildings, so a proper job first time, with the old sealant fully removed, is worth it.
Pricing facade joints depends on how many there are, their condition and the access, plus any specification you’re working to. Call for a quote.
Why clients in Cudham choose us
- Work to your specification and the manufacturer’s guidance
- One contact handling all your sites
- 12 months’ guarantee on every job
- Fully insured, including public liability cover
Take a look at what affects the cost and our accreditations.
What we are called out for in Cudham
When the sealant tears down its centre, it has normally 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:
- Weathered joints at frame-to-structure perimeters
- Facade joints cracked through the middle
- Failed sealant on precast panel joints
- Water coming in around window frames
Extensions at sites like Orpington Hospital (3.3 miles north of Cudham) typically sit beside working departments, and the mastic follows strict access rules.
Comparing quotes
- Whether old or failed sealant will be cut out, not overlaid
- Will CSCS-carded applicators be on site?
- The terms of the workmanship guarantee
- Do they follow the manufacturer’s priming guidance?
Aftercare for building managers
Your facilities or cleaning team can help the joints last. Share these points with them:
- Add perimeter sealant to planned maintenance checks
- Don’t wait for a second leak before calling
- Share access with other external trades
- Keep sills, gutters and drainage paths clear
Blocked sills and gutters push water at the joints. Sealant copes better when water runs off the facade as designed.
Coordinate facade sealing with other external works. Sharing the access keeps the cost down and cuts time on site.
Surface by surface
Coping and flashing joints
Not every coping or flashing leak is a sealant problem. Where the issue isn’t the sealant, we say so.
Precast concrete panels
Concrete edges can be dusty or weak. We clean back to sound material and flag edges that need repair.
Common questions from Cudham clients
Do you cover business parks and estates near Cudham, such as Biggin Hill Airport Trading Estate?
Yes. We cover Cudham and the area around it, including industrial estates, business parks and retail parks such as Biggin Hill Airport Trading Estate. A few photographs and the unit address let us price the work.
Can you take on a job at a hospital such as Orpington Hospital?
Yes. We work in healthcare settings as well as offices and schools. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
What type of sealant goes on window perimeters?
Most facade and window perimeter joints take a low-modulus neutral-cure silicone. Hybrid or MS polymer, polyurethane and polysulphide sealants suit others, as the specification or substrate requires.
Do you have public liability insurance?
Yes. Mastic Doctor is fully insured, public liability included.
Should we check old sealant for asbestos?
It’s worth checking in any building from before 2000. The duty to manage asbestos sits with the dutyholder. If asbestos is suspected, work stops until it is tested.
Can the building stay open while you work?
Normally, yes. Phased work can be planned so areas stay in use, with each area protected and signed.
Will your applicators have CSCS cards?
Yes. We use CSCS-carded applicators, as many construction sites ask for.
Facade sealing around Cudham: what changes locally
The ULEZ covers the whole of Greater London, Cudham included, so site vehicles need to meet its standards or pay the daily charge. London sites also mean booked deliveries and limited storage, which the mastic programme has to allow for.
With historic properties like Down House (1.4 miles north-west of Cudham) in the area, refurbishment work often meets old masonry that needs compatible sealants. Projects at schools like Cudham Church of England Primary School work to term dates, so mastic is programmed tightly.
Cudham is about 5 miles south of Orpington, in Greater London. Cudham sits inside our coverage, with the same fixed quotes and 12-month guarantee as everywhere else. Across Greater London, 764 places are covered, including Cudham. For work in that direction, see our London page, about 15 miles away.
If you need facade sealing in TN14, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. If your site is on Cudham Lane South, Cacket's Lane and Newbarn Lane or close by, we can quote for facade joints. Close to Cudham, our area also takes in Single Street (1 mile west), Berry's Green (1 mile south-west), Horns Green (1 mile south-east), Burlings (1 mile south-east) and Luxted (1 mile north-west). Further afield, our area takes in London (15 miles north-west), Whitechapel (15 miles north-west), Stockwell (13 miles north-west), Orpington (5 miles north), Wimbledon (14 miles north-west) and Plaistow (15 miles north).
Near you in Cudham
We work on buildings around Charles Darwin School and The Blacksmith's Arms, among other places. The nearest railway station is Chelsfield station, about 3.1 miles north-east of the centre. Other landmarks nearby include Crofton Roman Villa (3.9 miles north) and Orpington Hospital (3.3 miles north). Open spaces near Cudham include Betsom's Hill and Downe Bank.