Penge facade sealing
Facade sealing in Penge, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Draughts around frames and panels
- Perimeter joints where frames meet the structure
- Previous reseals run over old sealant
Facade sealing near Penge
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
How we handle facade sealing in Penge
Some clients need every window on a block resealed; others need a few leaking frames sorted. Either way, the method is the same: cut out, clean, back, prime where needed and seal. A 12-month guarantee applies to our workmanship. We work on perimeter joints where frames meet the structure, stone and brick facade joints and shopfront frames, and the usual reasons a site gets in touch are failed sealant on precast panel joints and failed seals around shopfront and entrance frames. A single leaking joint is often how a building in Penge first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.
Around Penge, as across London, much of the work is refurbishing existing buildings as well as building new ones. Replacement windows, recladding and fit-outs leave perimeter and facade joints to seal, often next to people still using the building.
We stand by our work: 12 months, guaranteed. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.
- Location
- Penge (SE20, SE19, SE26)
- Region
- Greater London
- Guarantee
- A 12-month guarantee
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
From enquiry to sign-off
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. Once we are cleared to begin, the joints are worked through in the order agreed with your site contact, and each area is checked before we leave it. Most London premises stay occupied while we are on site, so we agree zones and timings with the building or facilities manager. Areas are handed back as each section is finished.
- We look at the joints, the drawings and the access before pricing.
- Failed sealant is cut out along its full length.
- Both faces are cleaned and, where the product needs it, primed.
- Backing rod, or bond-breaker tape in shallow joints, limits the depth.
- The new sealant goes in and is tooled firmly onto both faces.
- We walk the finished joints with you before handing over.
Getting the site ready
- Let us know about inductions and permits
- Point out any areas we must not close
- Warn occupants and staff about the work
Quotes
For a fixed quote, speak to us on 01277 525 020 or email a schedule or drawings, telling us the site location and the nature of the job. You can also send details through our quote form.
Advice
Why act early in Penge
Topping up a failed joint typically buys very little time. A full cut-out and reseal costs more on the day but lasts much longer and avoids repeat call-outs. 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. Dealing with it early is simpler for everyone.
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well.
Why clients in Penge choose us
- Sealing commercial buildings since 2005
- Coloured sealants to suit the setting, where available
- Constructionline member for supplier checks
- Colour options checked against the specified product
Take a look at how commercial sealant jobs are priced or our accreditations.
Towns and villages near Penge
Also in Penge
New build and refits around Penge
Every borough of Greater London is inside the ULEZ, and that applies to contractors’ vehicles on any job in Penge. Delivery slots and scarce storage shape how and when the mastic goes in. A number of hotels sit less than 2 miles from Penge. Hotel extensions and refits usually have to fit around bookings, so mastic dates are tight.
For a contractor working at a hospital such as British Home & Hospital for Incurables (2.1 miles west of Penge), perimeter and facade sealing is planned around patients and deliveries. Units on estates such as Franklin Industrial Estate, less than half a mile south-east of Penge, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal. For contractors on a campus like King's College London, which lies north of Penge, facade and perimeter sealing has to fit around students and term dates.
Penge is about 1 mile west of Beckenham, in Greater London. Any commercial site in Penge is covered, for single jobs and planned programmes alike. We work across 764 places in Greater London. There’s a separate page for London, roughly 6 miles from Penge.
If you need facade sealing in SE20, SE19 and SE26, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. We cover commercial and managed buildings on High Street, Anerley Station Road and Station Road and the roads nearby. Main routes into Penge include the A234, which helps when planning parking and deliveries for the job. We also cover Anerley (1 mile west), Crystal Palace (1 mile north-west), Sydenham (1 mile north), Gipsy Hill (1 mile north-west) and Upper Norwood (1 mile west) for facade joints. Bigger towns within reach include London (6 miles north), City of Westminster (8 miles north-west), Marylebone (8 miles north-west), Kensington (8 miles north-west), St Pancras (8 miles north) and Shoreditch (8 miles north).
Landmarks near Penge
In Penge, that means premises near Crystal Palace School, Crooked Billet pub and Crystal Palace Dinosaurs, among other places. There’s a railway station in Penge itself: Penge West station. Other landmarks nearby include St Christopher's Hospice (0.5 miles north) and Crystal Palace Museum (0.8 miles north-west). Green spaces nearby include Dulwich Upper Wood and Knight's Hill.
Commercial clients in Penge
As a CHAS accredited contractor and Constructionline member, we’re straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.
Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Penge can form part of a wider programme across Greater London.
When to bring in a specialist
Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.
When it isn’t the sealant
A proper diagnosis includes knowing what sealant can’t do. You will hear from us if the cause turns out to be one of these:
- Render or concrete edges that have broken away
- Replacing glass or failed glazing units
- Leaks from roofs, gutters or failed flashings rather than sealant joints
If in doubt, call 01277 525 020 or email us and we’ll say what we think before you book.
Where we work in Penge
- Shopfront frames
- Cladding panel joints
- Perimeter joints where frames meet the structure
- Stone and brick facade joints
- Window and door perimeters
- Coping and flashing joints
Penge: questions and answers
Do you work in London buildings with loading restrictions?
Yes. Booked loading bays, goods lifts and permit-to-work systems are normal for London jobs. Send the building rules and access times with your enquiry.
Would you work within a site like British Home & Hospital for Incurables?
Yes, healthcare and care buildings are part of our work. Each area is agreed with the ward or department and the estates team in advance.
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.
Do you replace failed glazing units?
No. We don’t install glazing systems, windows or glass. We seal the joints around them, such as perimeter joints where frames meet the structure.
Is Penge in your area?
Yes. We cover Penge and the rest of Greater London, within our coverage of Greater London, South East England and Scotland. To discuss a job, phone 01277 525 020 or email a schedule or drawings.
When can the area be used after sealing?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, so we will confirm the curing time on the day.
Will you just go over the old sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
Maintenance after handover
For the best life from the joints:
- Ask about asbestos in pre-2000 mastic
- Add perimeter sealant to planned maintenance checks
- Share access with other external trades
- Avoid harsh cleaners on facade sealant
Let the new sealant cure before washing the facade or windows near it. Keep high-pressure jets and strong chemicals away from new sealant, so brief your window cleaners.
Check older buildings for asbestos before disturbing old mastic. Older sealants can contain asbestos, and if it’s suspected, we stop until it has been tested.