Facade and window perimeter sealing in New Eltham, Greater London
Facade joint and window perimeter sealing on commercial buildings in New Eltham and across Greater London. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Staining on stone next to old sealant
- Patch repairs that keep failing
- Hard, chalky sealant that no longer flexes
Facade sealing for businesses in New Eltham
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Why it’s worth doing now in New Eltham
Resealing a few window perimeters is a small job; repairing water-damaged interiors and fixings is not. Leaks travel along the structure. In New Eltham, each extra visit means more notices, permits and disruption, so cutting the old sealant out fully and doing it right once is the better route.
There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote.
Why clients in New Eltham choose us
- Colours chosen to suit frames, cladding or finishes where possible
- Specification-led, product-correct work
- Sealing commercial buildings since 2005
- Fully insured
About our facade sealing in New Eltham
Most facade joint failures trace back to the joint, not just the sealant. Joint width needs to match how far the joint moves and how far the sealant can stretch, while rod fixes the depth and stops the bead sticking to the rear with the ratio the sealant maker recommends, often around 2:1. We work on stone and brick facade joints, shopfront frames and cladding panel joints, and the usual reasons a site gets in touch are failed sealant on precast panel joints and unsightly perimeter sealant on a visible elevation. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in New Eltham is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Around New Eltham, as across London, much of the work is refurbishing existing buildings as well as building new ones. New frames, overcladding and fit-outs all end in perimeter and facade joints, frequently with occupants close by, so tidy, well-planned work matters.
We sign every job off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.
- Location
- New Eltham (SE9, DA15, BR7)
- Region
- Greater London
- Cover
- 12 months on every job
- Quote
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Facade sealing in New Eltham: the local picture
Every borough of Greater London is inside the ULEZ, and that applies to contractors’ vehicles on any job in New Eltham. London sites also mean booked deliveries and limited storage, which the mastic programme has to allow for. The area within 2 miles of New Eltham holds several hotels. Hotel extensions and refits normally have to fit around bookings, so mastic dates are tight.
University estates such as University of Greenwich - Avery Hill (0.7 miles north-east of New Eltham) tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal. Hotel extensions and refits, at places such as The Eltham Hotel, 1.1 miles to the north of New Eltham, normally run between busy periods, so the sealing is squeezed into short windows.
New Eltham is about 1 mile south-east of Eltham, in Greater London. Anywhere in SE9, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Across Greater London, 764 places are covered, including New Eltham. For work in that direction, see our London page.
Business premises anywhere in SE9, DA15 and BR7 are within our area for facade joints. If your site is on Green Lane, Gerda Road and Novar Road or close by, send details and we will quote for facade joints. If your building is just outside New Eltham, we cover Eltham (1 mile north-west), Longlands (1 mile south-east), Coldharbour (1 mile south-west), Avery Hill (1 mile north) and Blackfen (1 mile north-east). Nearby towns on our patch include London (8 miles north-west), City of Westminster (11 miles north-west), Marylebone (11 miles north-west), Kensington (13 miles west), St Pancras (10 miles north-west) and Shoreditch (9 miles north-west).
Around New Eltham
Around New Eltham, our work takes us to commercial buildings near Elmstead Wood and St Thomas More Catholic Comprehensive School and the streets around them. New Eltham has its own railway station: New Eltham station. Well-known places in the area include Metropolitan Police Museum (1.4 miles east) and Eltham Community Hospital (1.1 miles north-west). The countryside around New Eltham includes Summer Hill and The Tarn.
For managing agents and facilities managers
Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.
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 New Eltham can sit alongside others in a wider programme.
Places near New Eltham
Also in New Eltham
When something else is needed
Being straight saves everyone time. New sealant won’t cure:
- Arranging specialist high-level access, which is planned with the client
- Installing or repairing glazing systems
- Cracked or spalling substrates that need repair before sealing
If in doubt, ring 01277 525 020 or send photos by email and we’ll say what we think.
Joints and surfaces we work on
- Stone and brick facade joints
- Window and door perimeters
- Cladding panel joints
- Coping and flashing joints
- Perimeter joints where frames meet the structure
- Shopfront frames
When to call us in New Eltham
When sealant lets go of a frame or panel, the cause is often the preparation. Contamination, moisture or skipping the primer the maker specifies leave a weak bond, and movement soon pulls it away.
Typical triggers for a call:
- Staining on stone next to old sealant
- Weathered facade joints that have lost their grip
- Failed seals around shopfront and entrance frames
- Perimeter sealant that has split or peeled away
When units on a site such as Green Lane Business Park, under half a mile west of New Eltham, are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.
Before you book anyone
- Can the work be phased to keep areas open?
- Health and safety accreditation such as CHAS
- What site paperwork they can supply
- How joint depth will be controlled
How a job runs
We bring the products specified for the job, along with primers and backing rod. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Most London premises stay occupied while we are on site, so zones and timings are agreed with whoever manages the building. Areas are handed back as each section is finished.
- First we review photos, drawings or what we saw on a visit, and agree how each joint will be reached.
- The old bead is cut away completely, not overlaid.
- Both faces are cleaned and, where the product needs it, primed.
- Backing rod, or bond-breaker tape in shallow joints, limits the depth.
- A facade-grade sealant rated for the movement goes in, tooled to a concave profile.
- We walk the finished joints with you before handing over.
What we need from you
- Tell us your opening times and when work is allowed
- Point out any areas we must not close
- Let us know about inductions and permits
Quotes
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, speak to us on 01277 525 020 or email a schedule or drawings.
Advice
Aftercare for building managers
For the best life from the joints:
- Insist on a full cut-out when joints are renewed
- Keep pressure washers away from fresh sealant
- Combine resealing with other works that need access
- Check the asbestos register before old mastic is disturbed
After heavy weather, check vulnerable elevations for signs of water inside. An early report normally means a small reseal rather than a bigger repair.
Check older buildings for asbestos before disturbing old mastic. Older sealants can contain asbestos.
Questions about New Eltham
Is Green Lane Business Park, near New Eltham, within your area?
Yes. Estates, retail parks and business parks around New Eltham, Green Lane Business Park among them, are all within reach. A few photos and the unit address let us price the work.
Can work at a site such as University of Greenwich - Avery Hill fit around teaching?
Yes, holiday working periods are the norm on campus jobs. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
When can the area be used after sealing?
Curing time varies by product, and we confirm it on the day, and flag anything to keep off until it has cured.
When can you be on site?
Give us your site hours and any access windows in your enquiry, and we’ll plan around them. You can reach the office between 8am and 5pm, Monday to Friday.
What will the job cost?
It depends on the job: quantities, access, the product and any phasing. Call for a fixed quote.
Do you work to architects’ specifications?
Yes. Include it with the drawings when you ask for a quote, and we will price the work to it, flagging anything that needs clarifying.
Do you work in New Eltham?
Yes. Sites across New Eltham are covered, with one number for every area we cover.