Facade and window perimeter sealing in Coombe, Greater London
Work needed on a facade joint in Coombe? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Cold air coming in at window perimeters
- Staining on stone next to old sealant
- Failed sealant on precast panel joints
Facade sealing in Coombe
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Facade sealing for commercial buildings in Coombe
Our facade sealing work covers external facade joints, window and door perimeters, cladding panel joints and the perimeter joints where frames meet the structure for clients around Coombe. Coping and flashing joints are included where sealant is the specified fix. If you have unsightly perimeter sealant on a visible elevation and draughts around frames and panels, we can help. Searching for sealant specialists in Coombe? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
Building sites in London tend to be tight: small compounds, delivery slots and shared hoists and scaffold. We fit around the programme, sealing each elevation or floor as other trades hand over.
Every job we finish is backed by a 12-month workmanship guarantee. If our installation lets you down in that time, we return and fix it.
- Place
- Coombe (CR0, CR2, CR9)
- Wider area
- Greater London
- Guarantee
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Common problems we fix in Coombe
Most facade joints fail through age and weathering. The bead hardens, chalks on the surface and loses the flexibility to follow the joint, and cracks or adhesion loss follow.
Typical triggers for a call:
- Draughts around frames and panels
- Staining on stone next to old sealant
- Previous reseals run over old sealant
- Water coming in around window frames
For contractors at a college like Croydon College, 1.3 miles north-west of Coombe, perimeters and internal sealant are timed for the holidays.
What your quote should include
- How the joint faces will be prepared and primed
- Will CSCS-carded applicators be on site?
- Is the sealant right for the movement and the substrate?
- The terms of the workmanship guarantee
Nearby places to Coombe
What else we do in Coombe
When something else is needed
Not every problem is a sealant problem, and we’re upfront when that’s the case. It won’t fix:
- Leaks from roofs, gutters or failed flashings rather than sealant joints
- Movement beyond what any sealant can handle
- Cracked or spalling substrates that need repair before sealing
If in doubt, call 01277 525 020 or send details through our quote form and we will say what we think.
Joints and surfaces we work on
- Window and door perimeters
- Cladding panel joints
- Perimeter joints where frames meet the structure
- Stone and brick facade joints
- Coping and flashing joints
- Shopfront frames
Work for main contractors and building owners
FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.
When you manage a building on behalf of an owner, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
After the work
Every sealant joint needs some looking after, and how long they last depends on how they’re treated. Our advice:
- Combine resealing with other works that need access
- Note when each elevation was last resealed
- Walk the elevations once or twice a year
- Keep sills, gutters and drainage paths clear
Keep a note of which product went in and when. Future work can then match the product and colour across the elevation.
Get the joint design right when resealing: the right width, backing rod and a sealant with enough movement capability. Repeating a faulty detail just repeats the failure.
Facades, frames and programmes in Coombe
As part of Greater London, Coombe is inside the ULEZ, which applies to every van on site. Add booked deliveries and tight storage, and the mastic package needs planning with the site team. Plenty of hotels sit less than 2 miles from Coombe. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.
Work at a hotel such as Croydon Park Hotel (to the north-west of Coombe) tends to be programmed around bookings, mastic included. When a school such as Coombe Wood School is extended or refurbished, the mastic package is often squeezed into the holidays.
Coombe is about 1 mile east of Croydon, in Greater London. Our applicators travel to Coombe for work on facade joints, handled exactly as we handle every other area. Coombe is one of 764 places we cover in Greater London. We also cover London, some 9 miles away.
If you need facade sealing in CR0, CR2 and CR9, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. We cover commercial and managed buildings on Oaks Road, Coombe Road and Coombe Lane. If your building is just outside Coombe, we cover Croydon (1 mile west), Addiscombe (1 mile north), South Croydon (1 mile south-west), Shirley Oaks (1 mile north-east) and Shirley (1 mile north-east). Further afield, our area takes in London (9 miles north), City of Westminster (11 miles north), Marylebone (11 miles north), Kensington (11 miles north-west), St Pancras (11 miles north) and Shoreditch (11 miles north).
Near you in Coombe
In Coombe, that means premises near Coombe Lodge pub, Royal Russell School and St Peter's Primary School, among other places. The closest station to Coombe is South Croydon station, roughly 1 mile west of the centre. A little further out are St George's Walk (1.4 miles north-west) and Croydon Airport Visitor Centre (2.1 miles west). Not far away are Bramley Bank and Duppas Hill.
FAQs: Coombe
Is Twin Bridges Business Park, near Coombe, within your area?
Yes, sites like Twin Bridges Business Park are within our area, along with the rest of Coombe. To start, just speak to us on 01277 525 020 or email the details over with the unit, the joints involved and your access times.
Can you take on a job at a hospital such as Shirley Oaks Hospital?
Yes, hospitals are one of the sectors we cover. Work is phased so departments keep running, under the site’s own rules.
Can staff carry on working while you’re here?
In most cases, yes. Phased work can be planned so areas stay in use.
Do you have public liability insurance?
Yes. Mastic Doctor is fully insured, public liability included.
What do you charge?
Each job is quoted on its own details. For yours, speak to us on 01277 525 020 or send details through our quote form with a description of the work.
Is the work guaranteed?
Yes, for 12 months. If our installation fails in that time, we return and fix it.
How do I request a quote?
It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photographs and a postcode.
How a job runs
We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. For a job in Coombe, access comes first: 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.
- We start with photos, drawings or a visit to see the joints and agree access.
- We confirm the joint type, movement and the specified product.
- The existing bead comes out in full and both faces cleaned back.
- Primer goes on where the product data asks for it.
- Backing rod is fitted and the new sealant gunned in and tooled.
- The finished joints are checked with you.
Preparing the site
- Tell us which areas need to stay in use
- Send any specification or drawings in advance
- Tell staff and tenants when we’ll be in
Request a quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photos and a description will do.
Advice
Why it’s worth doing now in Coombe
The longer a failed joint is left, the more the substrate suffers: wet edges break down, so repairs may be needed before resealing. Early action keeps it simple. Repeat call-outs disrupt occupied London buildings, so a proper job first time, with the old sealant fully removed, is worth it.
Pricing facade joints depends on quantities, condition and access. Ask us for a fixed quote.
Why us?
- Colour options checked against the specified product
- One contact handling all your sites
- Fully insured
- Failed material removed, not covered up
See what affects the cost and our accreditations and insurance.