Facade Sealing in Mottingham
Facade joint and window perimeter sealing on commercial buildings in Mottingham and across Greater London. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Air leaks through failed facade joints
- New sealant peeling off old mastic
- Unsightly perimeter sealant on a visible elevation
Facade sealing in Mottingham
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Facade sealing in Mottingham
External joints face UV, rain, temperature swings and building movement all year, and they wear out over time. Life depends on movement, weathering, product choice and the quality of the original work. When it fails, the whole bead is cut away and the joint rebuilt. We work on stone and brick facade joints, window and door perimeters and shopfront frames, and the usual reasons a site gets in touch are facade joints cracked through the middle and cold air coming in at window perimeters. Facilities teams, main contractors and managing agents in Mottingham tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
Construction in a London area such as Mottingham means working on constrained sites: limited storage, booked deliveries and access shared with other trades. Mastic is normally one of the last trades on each elevation or floor, so we keep to the programme and the order of trades the site sets.
We sign every job off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.
- Where
- Mottingham (SE9, SE12, BR1)
- Wider area
- Greater London
- Cover
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
Doing it in-house
Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong usually costs more in the end than doing them right.
Redoing a failed joint usually costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Places near Mottingham
Also in Mottingham
Questions we’re asked in Mottingham
Do you take on jobs in Mottingham where loading and access are tightly controlled?
Yes. Booked loading bays, goods lifts and permit-to-work systems are normal for London jobs. Say when the building is occupied and when it’s quiet, and we will plan accordingly. We allow for the ULEZ, which covers every borough
Do you cover business parks and estates near Mottingham, such as Green Lane Business Park?
Yes. Our area takes in Mottingham and its surroundings, with estates and business parks such as Green Lane Business Park included. Send details of the unit and the work through our quote form for a quick quote.
Can you work while the building is occupied?
Typically, yes. Phased work can be planned so areas stay in use, with each area protected and signed.
Is colour matching possible?
That depends on the product. Some ranges offer many colours, others very few, so the available colours are confirmed with the quote.
Which sealant do you use on facades?
Low-modulus, neutral-cure silicone suits many facade and perimeter joints. Hybrid or MS polymer, polyurethane and polysulphide sealants suit others, depending on the substrate and the specification.
Do you replace windows or glass?
No. We don’t install glazing systems, windows or glass. We seal the joints around them, such as perimeter joints where frames meet the structure.
Will you quote for a small job?
Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.
Keeping the joints sound
Cleaning and maintenance staff play a part too. Pass these on to them:
- Check that rainwater leaves the facade the way it was designed to
- Inspect facade joints on a regular cycle
- Share access with other external trades
- Insist on a full cut-out when joints are renewed
Hold back any cleaning crew until the joints have had their stated cure time. Pressure washers and harsh cleaners can damage a fresh bead, so brief your window cleaners.
Check older buildings for asbestos before disturbing old mastic. Older sealants can contain asbestos.
Signs you need facade sealing in Mottingham
Most facade joints fail through age and weathering. UV and weather harden the sealant until it can’t stretch with the building, and cracks or adhesion loss follow.
Things that usually lead to an enquiry:
- Leaks at window and door perimeters
- Weathered facade joints that have lost their grip
- Air leaks through failed facade joints
- Facade joints cracked through the middle
When units on a site such as Green Lane Business Park (1.1 miles east of Mottingham) are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.
Comparing quotes
- The named product and why it was chosen
- Their approach to joint depth and backing
- What level of public liability insurance do they hold?
- What the guarantee covers, and for how long
Facade sealing around Mottingham: points for this area
As part of Greater London, Mottingham is inside the ULEZ, which applies to every van on site. Deliveries are booked and storage is tight, so mastic materials come in as needed. The area within 2 miles of Mottingham holds a number of hotels. Hotel extensions and refits usually have to fit around bookings, so mastic dates are tight.
For a contractor at a hotel such as Baring Hall Hotel, which lies west of Mottingham, the mastic often has to be finished before a reopening date. On a campus such as University of Greenwich - Avery Hill, 2 miles to the north-east of Mottingham, new teaching buildings and residences are normally built and refurbished around the academic year.
Mottingham is about 1 mile south-west of Eltham, in Greater London. We send applicators to Mottingham for facade joints. Mottingham is one of 764 places we cover in Greater London. Sites around London have their own page, roughly 7 miles from Mottingham.
Postcode districts covered here: SE9, SE12 and BR1. Streets here include Horley Road, Dorset Road and Albert Road, and sites on any of them can send details for a fixed quote. We also cover Chinbrook (1 mile south-west), Grove Park (1 mile west), Coldharbour (1 mile east), Middle Park (1 mile north) and Horn Park (1 mile north-west). Further afield, our area takes in London (7 miles north-west), City of Westminster (10 miles north-west), Marylebone (10 miles north-west), Kensington (11 miles north-west), St Pancras (9 miles north-west) and Shoreditch (8 miles north-west).
What’s near Mottingham
Around Mottingham, our work takes us to commercial buildings near Colfe's School, Chinbrook Meadows and Haberdashers' Aske's Knights Academy, among other places. The closest station to Mottingham is Grove Park station, about 0.7 miles west. Well-known places in the area include Greenwich Castle (3.5 miles north-west) and Prefab Museum (1.7 miles west). Open spaces near Mottingham include Summer Hill and The Tarn.
Building owners, agents and FMs in Mottingham
For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first.
Whether you are a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.
How the job changes by surface
Render and coated surfaces
Sealant can only hold as well as the render or paint beneath it. Loose coatings are cleaned back first, and areas needing repair are flagged.
Brick and stone facades
Stone can absorb plasticisers from the wrong sealant. We use a product suitable for the stone where the specification names one, and mask the edges carefully.
How a job runs
Inspect, seal, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. 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.
- Photos, drawings or a visit tell us about the joints and the access.
- Product choice follows the joint’s movement and substrate.
- The existing bead comes out in full.
- Primer is applied where the maker specifies it.
- Rod goes in to fix the depth, then the joint is sealed and tooled.
- The finished joints are checked with you.
Before we start on site
- Agree which areas must stay open
- Tell us your opening times and when work is allowed
- Explain the parking and delivery arrangements
Getting a fixed 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, call 01277 525 020 or use the quote form.