
Mastic sealing for building owners and managing agents in Wallington, Greater London
Work needed on a mastic joint in Wallington? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Brittle perimeter mastic across a building
- Open joints in brickwork or panels
- Damp patches beside frames
Mastic sealing for businesses in Wallington
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing for commercial buildings in Wallington
Across Wallington and the rest of Greater London, we work the same way: you send details, we return a fixed quote, the joints are resealed and the 12-month guarantee follows. A list of buildings, a few photos and approximate joint numbers are enough for a quick quote or we can visit. If you have damp patches beside frames and complaints coming in block by block, we can put it right, on window and door perimeters on blocks, shopfronts below residential blocks and balcony and threshold joints alike. Facilities teams, main contractors and managing agents in Wallington tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
London has a large stock of purpose-built blocks, mansion flats and converted buildings managed by agents and housing associations. Window and door perimeters, balcony joints and communal areas all have mastic that ages together across a building.
A 12-month guarantee applies to all our work. If an installation problem shows up, call 01277 525 020 or email drawings and photos and we will arrange a return visit.

- Where
- Wallington (SM6, SM5)
- Wider area
- Greater London
- Cover
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Questions about Wallington
Does your area include sites such as Anchor Business Park, near Wallington?
Yes. We cover Wallington and the area around it, including industrial estates, business parks and retail parks such as Anchor Business Park. A few photos and the unit address let us price the work.
We manage a building near Wallington station. Can you help?
Yes. Managing agents, landlords, property factors and housing associations are who this service is for. Give us the building’s details and say how residents are notified, and we’ll quote and plan to suit.
How long will the new sealant last?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.
Do you work for managing agents and housing associations?
We do. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords, and we quote building by building or as a programme.
How do you reach windows on upper floors?
We talk through access for each building when we quote. Tell us the building height and any access already in place and we will confirm the approach in the quote.
How long does a job like this take?
We plan the time on site around your programme and access. You’ll have an expected duration with the quote.
Will you just go over the old sealant?
No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
How the quote is worked out
Before we quote, we look at:
- The site’s rules and procedures
- Working within restricted access windows
- Specialist products, such as fire-rated or hygienic sealants
- How much there is to seal
The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site requirements come into it too.
Details that help us quote
However big the job, the same details help:
- The postcode of the building
- Any specification or named product
- Any dates the work must fit around
- A wide shot and a close-up of the area
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to ring 01277 525 020 or use the quote form with what you know.
After the work
Once the work is signed off, these steps help:
- Make it easy for occupiers to report draughts
- Check sealant joints during planned building inspections
- Look at the sunniest and most exposed elevations first
- Keep a record of when each building was resealed
Log the date and extent of the resealing for each block. It helps plan the next round and gives you a history.
Mastic fails gradually, then all at once in a wet spell. Acting at the first signs keeps it a straightforward reseal and the complaints that come with it.
Our process
Inspect, seal, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. For a job in Wallington, access comes first: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Send the building rules and access times with your enquiry.
- A building-by-building inspection lists the failed joints.
- You get a fixed quote, per block or for the whole programme.
- We agree the programme and dates with you.
- Failed sealant is removed and the faces prepared.
- Joints are resealed and tooled.
- We check the finished work and confirm the guarantee.
What we need from you
- Send any specification or drawings in advance
- Send asbestos survey details if the building is pre-2000
- Point out parking and an unloading spot
Ask for a quote
Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. For a chat about it beforehand, phone 01277 525 020 or email a schedule or drawings.
Advice
Block-wide mastic in Wallington
Wallington has two care or nursing homes no more than 2 miles away. Care home owners need frame and external mastic kept sound without unsettling residents. For a London block, the agent or landlord normally handles notices to residents and access to flats. We work to your notice and access plan.
Older community buildings, Church of the Holy Trinity among them, often have frames of mixed ages whose mastic varies. Historic properties like Nonsuch Mansion (to the west of Wallington) show the age of some local stock, where frame mastic must suit soft brick or stone. For owners of several units at places like Anchor Business Park (1.1 miles north-east of Wallington), one programme can deal with frame and external mastic across the lot.
Wallington is about 2 miles west of Croydon, in Greater London. Any commercial site in Wallington is covered. Our Greater London coverage takes in 764 places. We also cover London, around 10 miles from Wallington.
Business premises anywhere in SM6 and SM5 are within our area. Buildings on Wallington Square, London Road and Maldon Road are within our area for mastic joints. With the A237 and B271 nearby, Wallington is easy to get to with materials and equipment. If your building is just outside Wallington, we cover Bandonhill (1 mile east), Carshalton (1 mile west), Beddington (1 mile north-east), The Wrythe (1 mile north-west) and Roundshaw (1 mile south-east). Nearby towns on our patch include London (10 miles north), City of Westminster (10 miles north), Marylebone (11 miles north), Kensington (10 miles north), St Pancras (11 miles north) and Shoreditch (12 miles north).
What’s near Wallington
Around Wallington, our work takes us to commercial buildings near Carshalton Park, Dukes Head Public House and Wallington County Grammar School, among other places. Wallington has its own railway station: Wallington station. Other landmarks nearby include Honeywood Museum (0.6 miles west) and Centrale Croydon (2.2 miles east). The countryside around Wallington includes Sutton Ecology Centre Grounds and Duppas Hill.
For managing agents and facilities managers
CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.
Hospitality, education, healthcare, office and retail clients book us directly too. The work is planned around how the building runs, so the building keeps working while we do.
Places near Wallington
Other services in Wallington
Different surfaces, different methods
Window and door perimeters on blocks
Window and door perimeters are where most mastic failure shows. Old perimeter mastic is removed, the joint prepared and new sealant tooled in.
Planned maintenance
Resealing can be scheduled alongside other planned works on a timetable you set.
What we can’t put right
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Misted or failed double-glazed units
- Frames that are rotten, warped or broken
- Masonry that has broken away beside the joint
If in doubt, give us a call on 01277 525 020 or use the quote form and we’ll say what we think before you book.
What we seal
- Communal kitchens and washrooms
- Balcony and threshold joints
- External wall and movement joints
- Communal entrances and stairwells
- Shopfronts below residential blocks
- Window and door perimeters on blocks