
Facade and window perimeter sealing in Old Coulsdon, Greater London
Commercial sealant work in Old Coulsdon for contractors, FMs and building owners: facade joint and window perimeter sealing on commercial buildings, with a fixed quote first.
- Sealant pulling away from frames or panels
- Perimeter joints where frames meet the structure
- Damp patches beside frames after rain
Facade sealing for Old Coulsdon sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Facade sealing in Old Coulsdon
Managing agents and owners in Old Coulsdon ask us to, we reseal perimeters across whole elevations or a handful of problem windows. The approach doesn’t change with the size: old sealant out, faces cleaned, depth set and a new bead tooled in. A 12-month guarantee applies to our workmanship. If you have perimeter sealant that has split or peeled away and failed sealant on precast panel joints, we can put it right, whatever the surface. Whoever orders the work in Old Coulsdon, the brief is typically the same: a clear scope, tidy work and joints that don’t fail again.
Construction in a London area such as Old Coulsdon means working on constrained sites: limited storage, booked deliveries and access shared with other trades. Mastic is usually 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. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.
- Place
- Old Coulsdon (CR5, CR3, CR8)
- Region
- Greater London
- Cover
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026

Site staff or a sealant specialist?
The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
What affects the price in Old Coulsdon
Your fixed quote is built from the real scope. It takes account of:
- The site’s rules and procedures
- How much there is to seal
- Specialist products, such as fire-rated or hygienic sealants
- Joint width, depth and condition
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you will have a fixed figure to work with.
What to include in your enquiry
A few photos plus some basic facts will normally do. It helps to include:
- Drawings or a marked-up plan, if available
- Access details, including height
- The type of building and who uses it
- A wide shot and a close-up of the area
Send us photographs, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.
When to call us in Old Coulsdon
Product choice matters: acetoxy-cure silicone may mark stone or corrode certain metals, and an interior product won’t last outdoors. Neutral-cure, facade-grade products are what most external joints need.
These are often picked up first by site or facilities staff:
- Draughts around frames and panels
- Water coming in around window frames
- Perimeter joints where frames meet the structure
- Sealant pulling away from frames or panels
Historic houses such as Addington Palace, 5 miles north-east of Old Coulsdon, are a reminder of the older buildings in the wider area, where sealing against old stone, brick or timber needs compatible products.
Before you book anyone
- Their public liability cover
- How long is the guarantee, and what does it include?
- Who will actually carry out the work
- Whether primer will be used where the manufacturer specifies it
Work for main contractors and building owners
Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Old Coulsdon can form part of a wider programme across Greater London.
Building owners and managing agents use us on everything from one building to a spread of sites. One quote can cover more than one site, so there’s one set of paperwork to deal with.
Our process
On arrival, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before anything is cut or cleaned, with the work itself usually taking longer on a full elevation than on a handful of window perimeters, and it always depends on dry weather. In Old Coulsdon, most buildings stay in use during the work, so zones and timings are agreed with whoever manages the building. Phased work keeps the rest of the building in use.
- 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 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
- Arrange parking or a loading space
- Send any specification or drawings in advance
- Let building users know which areas are affected
Request a quote
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, give us a call on 01277 525 020 or use the quote form.
Read more
Keeping the joints sound
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. We suggest:
- Inspect facade joints on a regular cycle
- Avoid patch repairs on failed facade joints
- Combine resealing with other works that need access
- Check the asbestos register before old mastic is disturbed
Anything drilled through a facade joint breaks the seal. Ask the installer to reseal it properly.
Building facade joints into a maintenance cycle avoids emergency repairs. Regular checks let you renew joints before water gets in, rather than waiting for a ceiling stain.
Old Coulsdon: questions and answers
Can work at a site such as Coulsdon Sixth Form College fit around teaching?
Yes. Education sites normally want the work in vacations or in phases during term, and we plan to suit. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Can you work at a site such as Ullswater Industrial Estate, by Old Coulsdon?
Yes. Estates, retail parks and business parks around Old Coulsdon, Ullswater Industrial Estate among them, are all within reach. A few photographs and the unit address let us price the work.
How long does a typical visit take?
It depends on the scope, but the work typically takes longer on a full elevation than on a handful of window perimeters, and it always depends on dry weather. For bigger or phased jobs, we will set out a timescale with the quote.
Which sealant will you use?
Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Will you come and look before quoting?
Many jobs can be quoted from photographs, drawings or a joint schedule. If the job needs a look first, we’ll arrange a visit.
Can you follow the specification on our project?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and any queries are raised before we start.
Can the building stay open while you work?
Yes, as long as we plan it. Tell us your site hours and access windows and we’ll plan around them.
Facade sealing around Old Coulsdon: how the place shapes the job
Site traffic in Old Coulsdon falls within London’s ULEZ, like everywhere else in Greater London. Deliveries are booked and storage is tight, so mastic materials come in as needed.
School extensions, at buildings such as Keston Primary School, usually run to the summer holidays, mastic included. On a healthcare site such as North Downs Hospital, which lies south-east of Old Coulsdon, new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully.
Old Coulsdon is about 1 mile south-east of Coulsdon, in Greater London. We cover commercial sites throughout Old Coulsdon, for single jobs and planned programmes alike. 764 places across Greater London fall within our area, Old Coulsdon among them. There’s a separate page for London, roughly 14 miles from Old Coulsdon.
Commercial sites across CR5, CR3 and CR8 are covered. Streets here include Ellis Road, Tollers Lane and Court Avenue. Nearby places we also cover include Coulsdon (1 mile north-west), Chipstead (2 miles west), Purley (2 miles north), Woodcote (2 miles north-west) and Woodmansterne (3 miles west) for facade joints. Nearby towns on our patch include London (14 miles north), City of Westminster (15 miles north), Marylebone (15 miles north), Kensington (14 miles north), Whitechapel (15 miles north) and Brompton (14 miles north).
Landmarks near Old Coulsdon
Locally, jobs take us to sites close to Sunnydown School, Dollypers Hill and The Tudor Rose pub. For rail, the closest station is Coulsdon South station, roughly 1.4 miles north-west of the centre. Other landmarks nearby include East Surrey Museum (2 miles south-east) and St Lawrence's Hospital (1.3 miles south-east). Green spaces nearby include Nore Hill and Mercers Lake.