New Charlton mastic sealing
Looking for mastic sealing in New Charlton? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Damp patches beside frames
- Old repairs sealed over failed mastic
- Window mastic that has split and shrunk
Mastic sealing in New Charlton
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing in New Charlton
For over 20 years we have resealed joints for owners, agents and landlords. Every applicator holds a CSCS card and we hold public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. Most enquiries involve repeated reactive repairs to the same buildings and damaged joints in communal entrances and corridors, on external wall and movement joints, balcony and threshold joints and shopfronts below residential blocks. Most enquiries from New Charlton start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
In a London area such as New Charlton, many buildings are blocks of flats or mixed-use buildings run by managing agents, landlords or housing associations. Window and door perimeters, balcony joints and communal areas all have mastic that ages together across a building.
We stand by our work: 12 months, guaranteed. That covers our preparation and application, and we come back if anything isn’t right.
- Location
- New Charlton (SE7, SE18, E16)
- Region
- Greater London
- Guarantee
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Call
- 01277 525 020
- Updated
- 3 November 2026
Leave it or put it right?
Replacing mastic before water gets in is a planned job. Once water has tracked in, the repair list grows and occupiers notice. 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.
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a quote and we’ll explain how it’s made up.
Why appoint us
- One contact handling all your sites
- Specification-led, product-correct work
- Colours confirmed for the specified product
- A fixed quote before work starts
Read our cost guide and how we’re accredited.
From enquiry to sign-off
We follow your site rules from the start: signing in, inductions and any permit to work. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. In New Charlton, most buildings stay in use during the work, so we agree zones and timings with the building or facilities manager. Phased work keeps the rest of the building in use.
- We inspect each building and record the joints that have failed.
- The quote is fixed and split as suits you.
- We agree the programme and dates with you.
- Failed sealant is removed and the faces prepared.
- New sealant goes in with backing rod and primer where needed.
- Each building is checked and signed off with the 12-month guarantee.
Getting the site ready
- Point out parking and an unloading spot
- Agree which areas must stay open
- Confirm the product named in the specification
Quotes
For a fixed quote, phone 01277 525 020 or email the details over, telling us the site location and the nature of the job. Our quote form is another easy route.
Read more
What we are called out for in New Charlton
Buildings move with temperature and moisture, and every joint has to stretch and squeeze with them. A joint that was too narrow, too thin or the wrong product can’t cope long before it should.
What tends to prompt an enquiry:
- Window mastic that has split and shrunk
- Draught complaints from residents or tenants
- A mix of products and colours from past repairs
- No planned programme for sealant
Trustees of buildings like St Catherine Labouré can bring frame and external mastic into a planned maintenance list.
Questions to ask before you book
- Will failed sealant be removed rather than covered?
- Proof of insurance
- Whether primer will be used where the manufacturer specifies it
- How joint depth will be controlled
Your questions answered
Do you take on jobs in New Charlton where loading and access are tightly controlled?
Yes. Booked loading bays, goods lifts and permit-to-work systems are normal for London jobs. Say when the building is occupied and when it’s quiet, and we’ll plan accordingly.
Will you take on a block within reach of Charlton station?
Yes. Managing agents, landlords, property factors and housing associations are who this service is for. We work to your notice and access arrangements.
What guarantee do you give on resealing?
A 12-month guarantee covers our work. It covers our workmanship, not later building movement, damage or frame failures.
Is asbestos a concern with old mastic?
Some mastics in pre-2000 buildings contain asbestos. We check the asbestos register or survey before disturbing it, and if it’s suspected, work stops until it’s tested.
Do you work for managing agents and housing associations?
We do. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work, and we quote building by building or as a programme.
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.
How long do sealant joints last?
There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
Also near New Charlton
What else we do in New Charlton
Looking after buildings in and around New Charlton
There are three care or nursing homes within about 2 miles of New Charlton. Frame mastic on care buildings is best renewed elevation by elevation, with the manager deciding timings. London blocks come with residents to inform, access to agree and often a concierge or estate office to work with. We work to your notice and access plan.
Buildings close to stations like Charlton station, less than half a mile south-west of New Charlton, are often flats over shops, with frame mastic to keep sound. Site managers at schools like Royal Greenwich Trust School can fit frame mastic into the summer works.
New Charlton is about 2 miles north-east of Greenwich, in Greater London. Our applicators travel to New Charlton for work on mastic joints, handled exactly as we handle every other area. Our Greater London coverage takes in 764 places. There’s a separate page for London, about 6 miles away.
Business premises anywhere in SE7, SE18 and E16 are within our area for mastic joints. Buildings on Floyd Road, Priolo Road and Hasted Road are within our area for mastic joints. Nearby places we also cover include Charlton (1 mile south-east), Westcombe Park (1 mile south-west), Woolwich (1 mile east), Vanbrugh Park Estate (1 mile south-west) and Maze Hill (2 miles south-west). Bigger towns within reach include London (6 miles west), City of Westminster (8 miles west), Marylebone (8 miles west), Kensington (10 miles west), St Pancras (7 miles west) and Shoreditch (5 miles north-west).
What’s near New Charlton
We work on buildings around Thames Barrier Park, Thorntree Primary School and The Victoria pub and the streets around them. There’s a railway station in New Charlton itself: Charlton station. Other landmarks nearby include Charlton Athletic Museum (under half a mile south) and Greenwich Castle (1.9 miles south-west). Not far away are Gilbert's Pit.
When something else is needed
Before quoting, we check that sealant is the right answer. It won’t put right:
- Glazing that needs replacing
- Leaks from above rather than through a joint
- Materials that need asbestos testing before work
Not sure which it is? You can call 01277 525 020 or use the quote form and we will tell you honestly before you book.
Surfaces we seal
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- Balcony and threshold joints
- Communal entrances and stairwells
- External wall and movement joints
- Shopfronts below residential blocks
Building owners, agents and FMs in New Charlton
FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.
We work for building owners and managing agents on everything from one building to a spread of sites around New Charlton. Several sites can go on one quote, so there’s one set of paperwork to deal with.
What sets the cost
Each job is priced on its own details. The main factors are:
- Any access equipment needed
- Travel to remote or island sites
- Whether the work must be split into stages
- Which sealant the job calls for
The product called for affects the cost, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.
What we need to price the job
The more we know, the firmer the quote. When you get in touch, include:
- The postcode of the building
- Drawings or a marked-up plan, if available
- What the building is and how it’s used
- Clear photographs of the problem areas
The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or ring 01277 525 020 or email a schedule or drawings if you’d rather talk the job through.