Facade and window perimeter sealing in New Malden, Greater London
Facade joint and window perimeter sealing on commercial buildings throughout New Malden and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Weathered joints at frame-to-structure perimeters
- Water coming in around window frames
- Unsightly perimeter sealant on a visible elevation
Facade sealing for New Malden sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Contractors’ notes for New Malden
There are a good number of hotels within about 2 miles of New Malden. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades. The ULEZ covers the whole of Greater London, New Malden included, so site vehicles need to meet its standards or pay the daily charge. Deliveries are booked and storage is tight, so mastic materials come in as needed.
University estates such as Kingston University, 1.4 miles north-west of New Malden, tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal. For contractors refurbishing units at places like Shannon Commercial Centre, which lies east of New Malden, the mastic covers cladding panels, roller-door and window perimeters.
New Malden is about 3 miles south-west of Wimbledon, in Greater London. Any commercial site in New Malden is covered. We work across 764 places in Greater London, from busy centres to rural villages. For work in that direction, see our London page.
Business premises anywhere in KT3, KT1 and SW20 are within our area for facade joints. For a building on High Street, Ashcombe Square and Melrose Gardens or nearby, send details and we’ll quote for facade joints. Main routes into New Malden include the B283, useful when we plan access and materials. Just outside New Malden, we also work in Motspur Park (1 mile north-east), West Barnes (1 mile east), Norbiton (1 mile north-west), Coombe (1 mile north) and Raynes Park (1 mile east). Further afield, our area takes in London (10 miles north-east), City of Westminster (9 miles north-east), Marylebone (9 miles north-east), Kensington (7 miles north), St Pancras (11 miles north-east) and Shoreditch (12 miles north-east).
What’s near New Malden
We work on buildings around Beverley Park, The Glasshouse pub and Holy Cross School, among other places. New Malden has its own railway station: New Malden station. Well-known places in the area include Chessington Castle Hill (3.3 miles south) and Bentall Centre (1.9 miles west). Open spaces near New Malden include Rose Walk and Kingston Hill Road area.
Facade sealing in New Malden
Weather decides a lot in facade sealing. Joints have to be dry and the air and surface temperature within the product’s range, so frosty or damp mornings can hold work back. We plan for that and keep you updated. If you have discoloured or dirty facade joints and patch repairs that keep failing, we can put it right. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in New Malden it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Every London site, New Malden included, is inside the ULEZ, which applies to deliveries and contractors’ vans alike. Alongside that, sites normally need booked deliveries and a plan for where materials go.
Every job we finish is backed by a 12-month workmanship guarantee, in New Malden as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Place
- New Malden (KT3, KT1, SW20)
- Region
- Greater London
- Guarantee
- 12 months on every job
- Quotes
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Doing it in-house
Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
New Malden: questions and answers
Can you cope with the access rules in a London building?
Yes. Inductions, permits and timed loading are routine for us in London. The building manager’s rules go straight into our method. All of Greater London is inside the ULEZ, and our planning allows for it
Would you work within a site like New Victoria Hospital?
Yes, provided the work is planned with the site’s estates team. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Are you CHAS accredited?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member.
What site paperwork can you supply?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we will confirm them with the quote.
How soon can the area be used again?
That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.
Do you need to see the site first?
It depends on the job. Simple work can often be priced from photos, and bigger or more complex jobs typically get a visit.
What’s the quickest route to a quote?
You can use the quote form on this site; alternatively, call 01277 525 020 or email us. Include photos or drawings if you have them.
What happens if it’s left?
Topping up a failed joint usually buys very little time. A full cut-out and fresh bead is the repair that holds, so you aren’t paying for the same joint twice. Access in London is hard enough to arrange once, so it makes sense to deal with every failing joint while access is in place.
We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we will price your job on its own details.
What you get with us
- Matching to RAL references, product permitting
- Workmanship guaranteed for 12 months
- Over 20 years of commercial sealing
- Constructionline member for supplier checks
Read how commercial sealant jobs are priced and how we’re accredited.
Surface 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
Brick and stone facades have perimeter and movement joints that need a compatible sealant. We avoid acetoxy silicone, which can stain some natural stone, with primer where its maker specifies.
From enquiry to sign-off
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed, then handed back before the next one starts. Planning a London job such as one in New Malden starts with access: 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.
- First we review photographs, drawings or what we saw on a visit, and agree how each joint will be reached.
- Failed sealant is cut out along its full length.
- Both faces are cleaned and, where the product needs it, primed.
- Backing rod, or bond-breaker tape in shallow joints, limits the depth.
- The new sealant goes in and is tooled firmly onto both faces.
- We walk the finished joints with you before handing over.
Before we start on site
- Arrange parking or a loading space
- Send your site hours and access windows
- Clear stock, furniture or equipment away from the joints
Quotes
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photographs and a few notes.
Related advice
When to call us in New Malden
New sealant run over old sealant rarely holds. Cured silicone won’t accept a new silicone bead, and the patch soon lifts.
Site and facilities staff are often the first to spot these:
- Gaps between rainscreen or cladding panels
- Perimeter joints where frames meet the structure
- Hard, chalky sealant that no longer flexes
- Cold air coming in at window perimeters
Hotel extensions and refits, at places such as The Bull and Bush Hotel Kingston, which lies west of New Malden, typically run between busy periods, so the sealing is squeezed into short windows.
Questions to ask before you book
- Their approach to joint depth and backing
- Can the work be phased to keep areas open?
- How long is the guarantee, and what does it include?
- Which product they’ll use, and why it suits the joint
Places near New Malden
Other services in New Malden
Quoting for work in New Malden
Sealant work doesn’t have a standard rate, since sites vary so much. What we look at:
- Backing rod, priming and other preparation
- Whether the work must be split into stages
- Travel to remote or island sites
- Quantities, in metres or numbers
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
What to include in your enquiry
It doesn’t need to be a full survey. These details are enough to start:
- Clear photos of the problem areas
- Approximate linear metres or a joint schedule
- Where the site is, with the postcode
- Access details, including height
Need a figure for a tender or a budget? We will quote against your scope and drawings that you can work with. For a chat about it beforehand, give us a call on 01277 525 020 or email drawings and photos.