Mastic Sealing in Falconwood
Looking for mastic sealing in Falconwood? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Damp patches beside frames
- Failed external movement joints
- Complaints coming in block by block
Mastic sealing for Falconwood sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How we handle mastic sealing in Falconwood
Owners and agents usually inherit a building’s mastic rather than choose it, and it ages quietly: it sits round windows and doors, along external joints and through communal areas. Once it cracks, hardens or comes away, draughts and water find a way in, and occupiers start reporting it. We work on external wall and movement joints, communal entrances and stairwells and communal kitchens and washrooms, and the failures we’re asked to look at most are leaks at window and door perimeters and complaints coming in block by block. A single leaking joint is often how a building in Falconwood first comes to us: we look at the rest while we are there and tell you what we find.
Planning mastic work on a London block means notices to residents, access to flats and agreed working areas. Work is planned with the agent so residents get notice and access is arranged in advance.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.
- Place
- Falconwood (DA16, DA15, SE9)
- Wider area
- Greater London
- Cover
- 12 months on every job
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
What the job involves on each surface
Tenement and older buildings
Traditional buildings have joints that need a careful approach. The material either side of the joint shapes the product choice.
Window and door perimeters on blocks
Window and door perimeters are where most mastic failure shows. We remove the failed mastic, prepare the faces, add backing rod if the joint is deep and reseal.
For managing agents and facilities managers
Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.
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.
What affects the price in Falconwood
There’s no standard rate for sealant work, since sites vary so much. What we look at:
- Specialist products, such as fire-rated or hygienic sealants
- How much existing material needs removing
- How much there is to seal
- Induction, permit and paperwork requirements
No two sites price the same: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
What we need to price the job
There’s no need for a formal survey. A few details are enough to get going:
- The postcode of the building
- Asbestos survey details if the building is older
- The type of building and who uses it
- When you need the work done
A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or call 01277 525 020 or email the details over if you’d rather talk the job through.
Block-wide mastic in Falconwood
Four care or nursing homes sit less than 2 miles from Falconwood. For owners and operators of care buildings, window perimeters and external joints are best renewed in planned phases around residents. For a London block, the agent or landlord normally handles notices to residents and access to flats. We plan around the notices and access you arrange.
Buildings close to stations like Welling station (to the north-east of Falconwood) are often flats over shops, with frame mastic to keep sound. Trustees of buildings like Bishop Ridley Church can bring frame and external mastic into a planned maintenance list. Schools and community buildings such as Bishop Ridley Church of England VA Primary School need frame and external mastic kept sound like any building.
Falconwood is about 2 miles north-east of Eltham, in Greater London. Any commercial site in Falconwood is covered. Across Greater London, 764 places are covered, including Falconwood. There’s a separate page for London, roughly 9 miles from Falconwood.
Anyone looking for mastic sealing in DA16, DA15 and SE9 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. We cover commercial and managed buildings on Hook Lane, Gordon Road and Kent Avenue and the roads nearby. Sites close to Falconwood are covered too, including Blackfen (1 mile south), East Wickham (1 mile north), Avery Hill (1 mile south-west), Shooter's Hill (1 mile north-west) and New Eltham (2 miles south-west). Further afield, our area takes in London (9 miles west), City of Westminster (11 miles west), Marylebone (11 miles west), Kensington (13 miles west), St Pancras (10 miles north-west) and Shoreditch (9 miles north-west).
Landmarks near Falconwood
Locally, jobs take us to sites close to The Plough and Harrow pub, Shoulder of Mutton Green and Harris Academy Falconwood, among other places. The closest station to Falconwood is Welling station, about 0.5 miles north-east. Other landmarks nearby include Broadway Shopping Centre (2.2 miles east) and Memorial Hospital (1.4 miles north-west). Open spaces near Falconwood include The Tarn and Summer Hill.
After the work
Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. We suggest:
- Log resealing dates block by block
- Mention RAMS, insurance or CSCS requirements up front
- Avoid piecemeal callouts where you can
- Reduce knocks to communal area joints
Ask residents or tenants to report draughts or leaks round windows early. Early reports catch failures before damage spreads.
One failed perimeter typically means others on the same building are close so a single failure is a sign to check the rest. A planned reseal saves repeated visits.
Should maintenance staff do it?
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Nearby places to Falconwood
What else we do in Falconwood
Questions we are asked in Falconwood
Do you take on jobs in Falconwood where loading and access are tightly controlled?
Yes, we plan every London job around the building’s own access rules. Share the building’s contractor rules and we will work to them.
Will you work in a care home in Falconwood without moving residents out?
Yes. We work around residents’ routines, a room or two at a time. Any site rules, from signing in to infection control, are agreed before we start.
Do you work with property factors and landlords?
Yes, block and estate work is a core part of what we do. We work through buildings in a planned order with dates agreed in advance.
Is it fine to apply new sealant on top of old?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
Do you need to see the site first?
It depends on the job. Straightforward work can often be priced from photos and measurements, and bigger or more complex jobs usually get a visit.
How many days will you need on site?
We plan the time on site around your programme and access. You will have an expected duration with the quote.
Do you take on small jobs?
Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.
On site: what to expect
Working in a building that stays open takes some planning. The work area is signed and kept contained, keep walkways clear and move on in phases so staff and visitors can carry on around us. Most London premises stay occupied while we’re on site, so zones and timings are agreed with whoever manages the building. Areas are handed back as each section is finished.
- We check the asbestos register for older buildings and look at the joints.
- A fixed quote covers the joints, products and order of work.
- Failed mastic is removed completely.
- The joints are prepared and resealed with the right product.
- Buildings are completed in turn.
Preparing the site
- Tell us which areas need to stay in use
- Send asbestos survey details if the building is pre-2000
- Explain the parking and delivery arrangements
Request a quote
Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. For smaller jobs, photographs and a description will do.