Facade and window perimeter sealing in Hockenden, Greater London
Sealant work in Hockenden for main contractors, managing agents and facilities managers: facade joint and window perimeter sealing on commercial buildings, quoted at a fixed price.
- Hard, chalky sealant that no longer flexes
- Cold air coming in at window perimeters
- Damp patches beside frames after rain
Facade sealing across Hockenden
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Facades, frames and programmes in Hockenden
The area within 2 miles of Hockenden holds several hotels. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up. Site traffic in Hockenden falls within London’s ULEZ, like everywhere else in Greater London. Delivery slots and scarce storage shape how and when the mastic goes in.
Extensions at sites like Queen Mary's Hospital (to the north-west of Hockenden) usually sit beside working departments, and the mastic follows strict access rules. On a campus such as University of Greenwich Avery Hill Campus (4.4 miles north-west of Hockenden), new teaching buildings and residences are typically built and refurbished around the academic year.
Hockenden is about 2 miles north-east of Orpington, in Greater London. We send applicators to Hockenden for facade joints, handled exactly as we handle every other area. We work across 764 places in Greater London, large and small. For work in that direction, see our London page.
Business premises anywhere in BR8 are within our area. Nearby places we also cover include Upper Ruxley (1 mile north-west), Stonehill Green (1 mile north-east), Ruxley (1 mile north-west), Puddledock (2 miles north-east) and Hextable (2 miles north-east) for facade joints. Further afield, our area takes in London (13 miles north-west), City of Westminster (15 miles north-west), Marylebone (15 miles north-west), St Pancras (14 miles north-west), Shoreditch (13 miles north-west) and Walthamstow (15 miles north-west).
Around Hockenden
Recent enquiries here include premises near Foots Cray Meadows and Orchards Academy. Hockenden’s nearest station is Swanley station, roughly 1 mile south-east of the centre. A little further out are London Borough of Bromley Museum (2.6 miles south-west) and Eynsford Castle (3.4 miles south-east). Open spaces near Hockenden include The Warren and Summer Hill.
Facade sealing in Hockenden
We don’t install glazing systems or replace glass. We handle the sealant joints that surround those elements: the frame-to-structure perimeter, panel-to-panel joints and window and door surrounds with products suited to facade or glazing perimeter joints. Most enquiries involve draughts around frames and panels and cladding panel joints that have opened up, on coping and flashing joints, stone and brick facade joints and shopfront frames. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Hockenden it comes down to the same thing: 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.
Whoever the client is, the cover is the same: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.
- Place
- Hockenden (BR8)
- Region
- Greater London
- Cover
- A 12-month guarantee
- Price
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Places near Hockenden
Other services in Hockenden
Keeping the joints sound
Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. We suggest:
- Add perimeter sealant to planned maintenance checks
- Clear debris that holds water against joints
- Insist on a full cut-out when joints are renewed
- Record the product and colour used on each elevation
Following storms, look inside for damp or staining near frames. Catching a new leak early keeps the repair small.
Use each reseal to correct the joint: the right width, backing rod and a sealant with enough movement capability. A well-designed joint lasts longer than a like-for-like copy of a failed one.
On site: what to expect
When we get to site, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before anything is cut or cleaned, and the work normally takes a day or two for a few elevations, and longer where access has to be moved around the building. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. Let us know about any on-site parking or loading arrangements when you send the job details.
- We plan access and the order of elevations with the client.
- We only seal when joints are dry and within the product’s temperature range.
- Each joint is cut out and the edges inspected.
- Faces are cleaned, primed where needed and backed.
- Sealant is gunned in and tooled hard onto both faces.
- We hand over with our 12-month workmanship guarantee.
Before we start on site
- Let building users know which areas are affected
- For older buildings, check the asbestos register before work
- Arrange parking or a loading space
Get a fixed 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. Smaller jobs need nothing more than photographs and a few notes.
Advice
What sets the cost
Each job is priced on its own details. The main factors are:
- How much existing material needs removing
- The total length or number of joints
- The product specified
- Phasing around occupants
Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.
Before you send an enquiry
A good diagnosis starts with the right details. Tell us:
- Access details, including height
- Whether the building will be occupied during the work
- Specification clauses that apply
- Any dates the work must fit around
A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or call 01277 525 020 or use the quote form to discuss it first.
Do you need facade sealing in Hockenden?
Product choice matters: acetoxy-cure silicone may mark stone or corrode certain metals, and an interior product won’t last outdoors. Most external joints call for a neutral-cure, facade-grade sealant.
Look out for the following:
- Cladding panel joints that have opened up
- Failed seals around shopfront and entrance frames
- Facade joints cracked through the middle
- Draughts around frames and panels
Further education sites such as Bird College (to the north-west of Hockenden) are extended and refurbished from time to time, with mastic often programmed into the summer break.
Before you book anyone
- Whether primer will be used where the manufacturer specifies it
- Will failed sealant be removed rather than covered?
- What the guarantee covers, and for how long
- Will CSCS-carded applicators be on site?
What happens if it’s left?
Scaffold or access already on site makes resealing much simpler. Coordinating facade sealing with other external works avoids paying for access twice. In a London building, a failed joint rarely affects only one party: water travels through shared structures, and a small leak becomes a dispute between occupiers. Putting it right early is less disruptive than dealing with the consequences.
Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.
Why choose Mastic Doctor in Hockenden
- Over 20 years of commercial sealing
- Matching to RAL references, product permitting
- Workmanship guaranteed for 12 months
- Coloured sealants to suit the setting, where available
See our cost guide or how we’re accredited.
Questions we are asked in Hockenden
Will you take on work at estates like Pembroke Business Centre, close to Hockenden?
Yes. We cover Hockenden and the area around it, including industrial estates, business parks and retail parks such as Pembroke Business Centre. Send details of the unit and the work through our quote form for a quick quote.
Can you cope with the access rules in a London building?
Yes, we plan every London job around the building’s own access rules. Send the building rules and access times with your enquiry. We allow for the ULEZ, which covers every borough
Should we check old sealant for asbestos?
It’s worth checking in any building from before 2000. The dutyholder holds the asbestos register, and we’ll ask to see it. Suspect material is left alone until it has been tested.
How long does a typical visit take?
It depends on the scope, but the work typically takes a day or two for a few elevations, and longer where access has to be moved around the building. Larger or phased jobs take longer, and we will give you a timescale with the quote.
Is it fine to apply new sealant on top of old?
No. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.
Can you work to our specification?
Yes. Include it with the drawings when you ask for a quote, and we’ll price the work to it.
How do I request a quote?
The quote form is the simplest route, though you can also phone 01277 525 020 or send photos by email. Include photos or drawings if you have them.
When to bring in a specialist
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.