Facade and window perimeter sealing in North End, Greater London
Need facade sealing in North End? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Gaps between rainscreen or cladding panels
- Cold air coming in at window perimeters
- Perimeter joints where frames meet the structure
Facade sealing for North End sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
What sealant work can’t fix
Some faults sit outside our scope, and we point that out rather than sealing over them:
- Movement beyond what any sealant can handle
- Installing or repairing glazing systems
- Providing access systems for the work
If in doubt, call the office on 01277 525 020 or send details through our quote form and we will say what we think before you book.
Surfaces we seal
- Window and door perimeters
- Coping and flashing joints
- Stone and brick facade joints
- Shopfront frames
- Perimeter joints where frames meet the structure
- Cladding panel joints
Facade sealing for commercial buildings in North End
A good facade joint depends on design as much as product. Joint width needs to match how far the joint moves and how far the sealant can stretch, and closed-cell rod sets the depth, keeping the bond to two faces. If you’re dealing with new sealant peeling off old mastic and cold air coming in at window perimeters, we can help. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in North End, that means joint design, primers and backing rod as standard.
Every London site, North End included, is inside the ULEZ, which applies to deliveries and contractors’ vans alike. Alongside that, sites typically need booked deliveries and a plan for where materials go.
We sign every job off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.
- Where
- North End (DA8, DA1, DA7)
- Wider area
- Greater London
- Guarantee
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Should maintenance staff do it?
Certain joints really need a specialist: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.
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, which is what makes a joint last.
Building and refurbishing in North End
There are a number of hotels within about 2 miles of North End. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up. The ULEZ covers the whole of Greater London, North End 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.
New wings at hospitals like Erith and District Hospital (to the north-west of North End) bring long runs of window and panel joints to seal. Further education sites such as London South East Colleges: Bexley (1.3 miles north-west of North End) are extended and refurbished from time to time, with mastic often programmed into the summer break. Units on estates such as Manford Industrial Estate, 0.8 miles north of North End, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal.
North End is about 2 miles north-west of Dartford, in Greater London. We cover commercial sites throughout North End, for single jobs and planned programmes alike. Our Greater London coverage takes in 764 places, large and small. For work in that direction, see our London page (13 miles or so).
We cover the DA8, DA1 and DA7 postcode districts. Buildings on Oak Road, Elm Road and Moat Lane are within our area. Nearby places we also cover include Slade Green (1 mile east), Barnes Cray (1 mile south), Bexley Riverside (1 mile west), Barnehurst (1 mile west) and Northumberland Heath (1 mile west) for facade joints. Bigger towns within reach include London (13 miles west), City of Westminster (15 miles west), Marylebone (15 miles west), St Pancras (14 miles west), Shoreditch (12 miles west) and Walthamstow (13 miles north-west).
Local landmarks in North End
Locally, jobs take us to sites close to Railway Tavern, Braeburn Park and Haberdashers' Aske's Crayford Academy and the streets around them. North End has its own railway station: Slade Green station. Other landmarks nearby include Erith Museum (1.2 miles north-west) and Erith and District Hospital (1.4 miles north-west). The countryside around North End includes Wansunt Pit.
FAQs: North End
Will you plan work around the academic year at somewhere like University of Greenwich?
Yes. We plan campus work around teaching, exams and residence turnarounds. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
Do you take on jobs in North End where loading and access are tightly controlled?
Yes, we plan every London job around the building’s own access rules. The building manager’s rules go straight into our method. We allow for the ULEZ, which covers every borough
Should we check old sealant for asbestos?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. The dutyholder’s asbestos register should be checked first, and if anything is suspected, we stop until it’s tested. Removal of asbestos isn’t something we do.
Do you use silicone for external joints?
Low-modulus, neutral-cure silicone suits many facade and perimeter joints. Hybrid or MS polymer, polyurethane and polysulphide sealants suit others, as the specification or substrate requires.
Do you seal on top of existing sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
What do you charge?
Each job is quoted on its own details. To get one, ring 01277 525 020 or use the quote form with a description of the work.
Which sealant will you use?
If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Also near North End
Also in North End
From enquiry to sign-off
The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. Let us know about any on-site parking or loading arrangements when you send the job details.
- We start with photographs, drawings or a visit to see the joints and agree access.
- We confirm the joint type, movement and the specified product.
- Failed beads are removed in full and the joint faces cleaned.
- Primer goes on where the product data asks for it.
- Rod goes in to fix the depth, then the joint is sealed and tooled.
- The finished joints are checked with you.
Preparing the site
- Let building users know which areas are affected
- Confirm the product named in the specification
- Tell us which areas need to stay in use
Getting a fixed quote
The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or call 01277 525 020 or email drawings and photos to discuss it first.
Related advice
After the work
Cleaning and maintenance staff play a part too. Share these points with them:
- Record the product and colour used on each elevation
- Clear debris that holds water against joints
- Ask about asbestos in pre-2000 mastic
- Avoid harsh cleaners on facade sealant
After heavy weather, check vulnerable elevations for signs of water inside. An early report usually means a small reseal rather than a bigger repair.
Use each reseal to correct the joint: the right width, backing rod and a sealant with enough movement capability. A well-designed joint lasts longer than a like-for-like copy of a failed one.
Different surfaces, different methods
Cladding panel joints
Joints between cladding panels open and close with temperature. We use a product rated for the movement and suited to the panel surface.
Coping and flashing joints
Sometimes the coping or flashing itself has failed. Where the issue isn’t the sealant, we say so.
Building owners, agents and FMs in North End
Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Sites in North End can sit alongside others in a wider programme.
Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.