Facade and window perimeter sealing in Wallington, Greater London
Planning work on a facade joint in Wallington? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Water coming in around window frames
- New sealant peeling off old mastic
- Facade joints cracked through the middle
Facade sealing for businesses in Wallington
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
What sealant work can’t fix
Our job is the joint, not everything around it. Sealant alone won’t deal with:
- Joints whose design needs changing by the specifier
- Damp caused by condensation inside the building
- Cracked or spalling substrates that need repair before sealing
If in doubt, call 01277 525 020 or send details through our quote form and we will say what we think before you book.
What we seal
- Stone and brick facade joints
- Window and door perimeters
- Shopfront frames
- Cladding panel joints
- Coping and flashing joints
- Perimeter joints where frames meet the structure
Facade sealing in Wallington
We don’t install glazing systems or replace glass. What we seal are the joints around them: perimeter joints where frames meet the structure, panel joints and window perimeters with products suited to facade or glazing perimeter joints. Most enquiries involve perimeter joints where frames meet the structure and facade joints cracked through the middle, on cladding panel joints, stone and brick facade joints and window and door perimeters. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Wallington, preparation and product choice get the time they need.
Every London site, Wallington included, is inside the ULEZ, which applies to deliveries and contractors’ vans alike. Add booked delivery slots and limited storage, and a London mastic package needs planning before the first bead.
Work we carry out comes with a 12-month guarantee. If an installation problem shows up, speak to us on 01277 525 020 or email the details over and we’ll arrange a return visit.
- Location
- Wallington (SM6, SM5)
- Region
- Greater London
- Cover
- 12 months on every job
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Facades, frames and programmes in Wallington
As part of Greater London, Wallington is inside the ULEZ, which applies to every van on site. Delivery slots and scarce storage shape how and when the mastic goes in. The area within 2 miles of Wallington holds a good number of hotels. When hotels extend or refit, the work is usually squeezed between peak periods, mastic included.
When a school such as Holy Trinity CofE Junior School is extended or refurbished, the mastic package is often squeezed into the holidays. For contractors refurbishing units at places like Anchor Business Park, 1.1 miles to the north-east of Wallington, the mastic covers cladding panels, roller-door and window perimeters.
Wallington is about 2 miles west of Croydon, in Greater London. Across the SM6 postcode area, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Wallington is one of 764 places in Greater London on our list. We also cover London, around 10 miles from Wallington.
Commercial sites across SM6 and SM5 are covered for facade joints. Buildings on Wallington Square, London Road and Maldon Road are within our area for facade joints. You will find Wallington on or near the A237 and B271. Sites close to Wallington are covered too, including 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).
Landmarks near Wallington
In Wallington, that means premises near Carshalton Park, Dukes Head Public House and Wallington County Grammar School and the streets around them. Wallington has its own railway station: Wallington station. Well-known places in the area include Honeywood Museum (0.6 miles west) and Centrale Croydon (2.2 miles east). Open spaces near Wallington include Sutton Ecology Centre Grounds and Duppas Hill.
Diagnose, treat, sign off
Before we leave any area, the masking comes off, the area is cleaned and every joint is checked, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. Planning a London job such as one in Wallington starts with access: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we’ll schedule to suit.
- Access, site rules and timing are settled with the client up front.
- Weather and temperature are checked against the product’s limits.
- Each joint is cut out and the edges inspected.
- Joints are cleaned, primed if required and fitted with backing rod.
- Sealant is gunned in and tooled hard onto both faces.
- Once signed off, the work carries our 12-month guarantee.
What we need from you
- Share the asbestos register for older buildings
- Move anything stored against the joints
- Let us know about inductions and permits
Ask for a quote
Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings you can plan around. If you have questions first, call 01277 525 020 or use the quote form.
Advice
Site staff or a sealant specialist?
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.
A short, simple internal joint is often within reach of a maintenance team. 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.
Places near Wallington
More services for Wallington
FAQs: Wallington
Will you take on work at estates like Anchor Business Park, close to Wallington?
Yes. We cover Wallington and the area around it, including industrial estates, business parks and retail parks such as Anchor Business Park. Send details of the unit and the work through our quote form for a quick quote.
Do you work in London buildings with loading restrictions?
Yes, most London buildings have access rules of some kind, and we plan around them. Share the building’s contractor rules and we’ll work to them. The ULEZ covers the whole of Greater London, which we allow for
Do you need to see the site first?
Many jobs can be quoted from photos, drawings or a joint schedule. If the job needs a look first, we will arrange a visit.
Can staff carry on working while you are here?
In the majority of cases, yes. We phase the work so most of the building stays in use, with each area protected and signed.
Do you use silicone for external joints?
It depends on the joint, the substrate and any specification. Specifications often refer to BS EN 15651-1 for facade sealants or BS EN 15651-2 for glazing, and we work to what is specified.
What do you charge?
That depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a fixed quote and we will price it properly.
When can you be on site?
The office is staffed Monday to Friday, from 8am until 5pm. Let us know your site hours and access windows, and the work will be planned around them.
Why deal with it now?
A few metres of new sealant compare well with replacing ceilings, linings or damaged stock. Water through a failed joint rarely stays where it starts, often turning up far from the joint. Access in London is hard enough to arrange once, so it makes sense to deal with every failing joint while access is in place.
The specified product makes a difference, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.
Why choose Mastic Doctor in Wallington
- CHAS accredited
- Fixed quotes based on photographs, drawings or a visit
- Over 20 years of commercial sealing
- Joints cleaned back to sound surfaces
See what affects the cost or our accreditations and insurance.
When to call us in Wallington
Adhesive failure, where the sealant peels away from one face, usually comes from poor preparation. Dust, old sealant residue, damp or a missing primer stop it bonding properly, and movement soon pulls it away.
Common reasons buildings call us in:
- Air leaks through failed facade joints
- Damp patches beside frames after rain
- Patch repairs that keep failing
- Staining on stone next to old sealant
Further education sites such as Sutton College of Learning for Adults, 1.9 miles to the west of Wallington, are extended and refurbished from time to time, with mastic often programmed into the summer break.
What your quote should include
- What site paperwork they can supply
- Do they follow the manufacturer’s priming guidance?
- How they’ll work around occupants
- The named product and why it was chosen
How the job changes by surface
Coping and flashing joints
Coping and flashing joints are included where sealant is the specified fix. They sit in the most exposed positions on the building.
Brick and stone facades
Joints in natural stone need care to avoid staining. The specified stone-compatible sealant is what we use.