Facade Sealing contractors in Bankside
Facade joint and window perimeter sealing on commercial buildings in Bankside. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Leaks at window and door perimeters
- Old perimeter mastic that has dried out
- Perimeter joints where frames meet the structure
Facade sealing for Bankside sites
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
About our facade sealing in Bankside
Facade joints are the line of defence between the weather and the building fabric. Once a perimeter seal fails, water tracks in around frames and panels. We cut out failed facade joints and reseal them with a facade-grade sealant suited to the movement. If you have perimeter joints where frames meet the structure and gaps between rainscreen or cladding panels, we can help, on perimeter joints where frames meet the structure, window and door perimeters and stone and brick facade joints alike. Searching for sealant specialists in Bankside? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
Around Bankside, as across London, much of the work is refurbishing existing buildings as well as building new ones. New frames, overcladding and fit-outs all end in perimeter and facade joints, frequently with occupants close by, so tidy, well-planned work matters.
A 12-month guarantee applies to all our work. Should something we installed fail, ring 01277 525 020 or email a schedule or drawings and we’ll come back to it.
- Where
- Bankside (SE1, EC4Y, EC4V)
- Wider area
- Greater London
- Guarantee
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Doing it in-house
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.
Redoing a failed joint normally costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Diagnose, treat, sign off
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Planning a London job such as one in Bankside 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.
- Photos, drawings or a visit tell us about the joints and the access.
- We confirm the joint type, movement and the specified product.
- Failed beads are removed in full and both faces cleaned back.
- Primer is applied where the maker specifies it.
- Backing rod is fitted and the new sealant gunned in and tooled.
- The finished joints are checked with you.
What we need from you
- Have the specification and drawings to hand
- Let building users know which areas are affected
- Agree which areas must stay open
Quotes
Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.
Related advice
When to call us in Bankside
When sealant lets go of a frame or panel, the cause is often the preparation. Contamination, moisture or skipping the primer the maker specifies leave a weak bond.
Any of the following is a good reason to get the joints checked over:
- Leaks at window and door perimeters
- Cold air coming in at window perimeters
- Perimeter sealant that has split or peeled away
- Gaps between rainscreen or cladding panels
On a campus such as University of Notre Dame (London Global Gateway), 0.6 miles west of Bankside, new teaching buildings and residences are typically built and refurbished around the academic year.
Before you book anyone
- Their pre-qualification and accreditations
- The named product and why it was chosen
- What the guarantee covers, and for how long
- How joint depth will be controlled
Also near Bankside
Other services in Bankside
Cost factors for facade joints
Sealant work doesn’t have a standard rate, since sites vary so much. What we take into account:
- The size and state of each joint
- The product specified
- Quantities, in metres or numbers
- Removal of failed or old sealant
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.
Sending details for a quote
For an accurate fixed quote, we need a clear picture of the site. Send us:
- How the joints are reached, and at what height
- The site address and postcode
- Any specification or named product
- The asbestos register, for older buildings
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, call 01277 525 020 or email a schedule or drawings.
Your questions answered
Is hospital work, at somewhere like London Bridge Hospital, something you do?
Yes, provided the work is planned with the site’s estates team. We follow the site’s permits, sign-in and infection-control procedures in every area.
Does your area include sites such as Grand Vitesse Industrial Estate, near Bankside?
Yes. We cover Bankside and the area around it, including industrial estates, business parks and retail parks such as Grand Vitesse Industrial Estate. Photos and a short description are enough for a first look.
What’s the quickest route to a quote?
There are four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photos and a postcode.
Can weather delay the job?
It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Internal work is far less affected.
What site paperwork can you supply?
Each site asks for different documents, so tell us what you need and we will confirm it when we quote.
Which sealant do you use on facades?
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.
How many days will you need on site?
That varies with the scale of the job, but the work normally takes longer on a full elevation than on a handful of window perimeters, and it always depends on dry weather. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.
Surface by surface
Perimeter joints at frames and structure
Perimeter joints at frames often show their age first. We cut them out, prepare both faces and reseal to the specification.
Precast concrete panels
Precast arrises sometimes crumble or carry old residue. Faces are cleaned to sound concrete, and damaged edges are reported.
Facade sealing in Bankside: the local picture
A 2-mile radius around Bankside takes in a good number of hotels. Hotel extensions and refits normally have to fit around bookings, so mastic dates are tight. The ULEZ covers the whole of Greater London, Bankside included, so site vehicles need to meet its standards or pay the daily charge. Delivery slots and scarce storage shape how and when the mastic goes in.
New wings at hospitals like London Bridge Hospital, 0.6 miles east of Bankside, bring long runs of window and panel joints to seal. For contractors refurbishing units at places like Grand Vitesse Industrial Estate, less than half a mile to the south of Bankside, the mastic covers cladding panels, roller-door and window perimeters.
Bankside is about 1 mile north of London, in Greater London. Any commercial site in Bankside is covered, whether it’s a single job or part of a planned programme. We work across 764 places in Greater London, large and small.
Business premises anywhere in SE1, EC4Y and EC4V are within our area. If your site is on Bear Lane, Bush Lane and Swan Lane or close by, we can quote for facade joints. Being close to the A201 and A300, Bankside is straightforward for us to reach. Sites close to Bankside are covered too, including Blackfriars (1 mile north-west), Temple (1 mile north-west), Temple Bar (1 mile north-west), Waterloo (1 mile south-west) and Smithfield (1 mile north). Nearby towns on our patch include Kensington (4 miles west), Walthamstow (6 miles north-east), Hampstead (5 miles north-west), Ruislip (14 miles west), Brompton (3 miles west) and Stockwell (3 miles south).
Around Bankside
We work on buildings around St Mary-at-Hill, Bernie Spain Gardens and St Andrew's and St John's Church of England Primary School, among other places. Other local landmarks include Barts Health Archives (0.6 miles north), The Cathedral School of St Saviour and St Mary Overy (0.5 miles south-east) and Founders Arms (less than half a mile west). There’s a railway station in Bankside itself: London Blackfriars station. Well-known places in the area include Royal Waterloo Hospital for Children and Women (0.6 miles west) and Gabriel's Wharf (under half a mile west). For a walk, there’s Ludgate Hill and Barnsbury Wood.
Looking after the joints
A few simple habits keep the new joints working:
- Keep sills, gutters and drainage paths clear
- Confirm the survey covers external sealants in older buildings
- Walk the elevations once or twice a year
- Share access with other external trades
Let the new sealant cure before washing the facade or windows near it. Keep high-pressure jets and strong chemicals away from new sealant.
Tie resealing in with redecoration, cladding repairs or other access. Sharing the access keeps the cost down.