Commercial sealant contractors in Addington, Greater London
We carry out sealant work for offices, shops, hotels and other commercial buildings in Addington and the surrounding area. Send photos or drawings for a fixed quote.
- Weathered facade sealant that no longer flexes
- A top-up bead over failed sealant, now lifting
- Greasy, split joints in a kitchen or tea point
Commercial sealant contractors across Addington
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Commercial sealant contractors in Addington
Mastic Doctor has been sealing joints for businesses and contractors since 2005, and the paperwork side is in order: CHAS accredited, Constructionline member, five million pounds of public liability insurance and CSCS-carded applicators. If your site needs RAMS, an insurance certificate or CSCS details, say so and we will confirm with the quote. We work on external facade joints, movement joints in walls and floors and window and door perimeters, and what we are called in for most is weathered facade sealant that no longer flexes and sanitary sealant that has gone black and patchy. Searching for sealant specialists in Addington? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.
In Addington, as anywhere, the first joints to go are usually the ones that work hardest: frame perimeters in the sun, floor joints at doorways and anything that gets wet every day.
Much of the planning for a London commercial job is about getting in and out: loading bay slots, goods lifts, permits to work and somewhere to keep materials. With access agreed, we work through the sealant joints a section at a time, keeping disruption to tenants low.
Work we carry out comes with a 12-month guarantee. Should something we installed fail, phone 01277 525 020 or send photos by email and we will come back to it.
- Where
- Addington (CR0, CR2, BR4)
- Region
- Greater London
- Cover
- 12 months on every job
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Updated
- 3 November 2026
Work for main contractors and building owners
For main contractors, we work as the sealant subcontractor. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.
We work for building owners and managing agents 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.
When to call us in Addington
If sealant tears through its centre, it has failed cohesively. Usually the movement was too much for the sealant chosen. The same product in the same joint tends to fail the same way.
What tends to prompt an enquiry:
- Gaps behind commercial kitchen worktops and sinks
- Frame sealant that has cracked, shrunk or pulled away
- Leaks that seem to come through a sealant line
- Earlier reseals applied straight onto the failed bead
If you run a unit on an estate such as Vulcan Way Industrial Estate, 1.6 miles south-east of Addington, the trade counter, offices and staff facilities have joints to look after as well as the warehouse.
Questions to ask before you book
- What level of public liability insurance do they hold?
- How they’ll work around occupants
- Do they follow the manufacturer’s priming guidance?
- How they handle RAMS and site documents
Working on commercial sites near Addington
At least three named trading, business or retail sites lie within about 3 miles of Addington. Units on sites like these change tenants and get refitted, and each refit leaves joints to seal. In London, commercial buildings often have managed loading bays, goods lifts and permit-to-work systems. We work within them, one zone at a time.
If you have premises on more than one site, say at Vulcan Way Industrial Estate and Chaffinch Business Park, one contractor and one quote can cover both. Shops and cafés around stations like West Wickham station (1.7 miles north-east of Addington) trade from early, so work is timed around them.
Addington is about 3 miles south-east of Ashburton, in Greater London. Our applicators travel to Addington for work on sealant joints, handled exactly as we handle every other area. We work across 764 places in Greater London. London is covered too, some 10 miles away.
We take on sealant joints across the CR0, CR2 and BR4 postcode area, for business premises of every kind. Buildings on Lodge Lane, Falconwood Road and Addington Village Road are within our area for sealant joints. Sites close to Addington are covered too, including Coney Hall (1 mile north), Forestdale (1 mile south), Spring Park (1 mile north), New Addington (1 mile south-east) and Selsdon (1 mile south-west). A short drive away, we cover London (10 miles north), City of Westminster (12 miles north-west), Marylebone (12 miles north-west), Kensington (12 miles north-west), St Pancras (12 miles north) and Shoreditch (12 miles north).
Around Addington
We work on buildings around Addington Park and John Ruskin College. The nearest railway station is West Wickham station, about 1.7 miles north-east of the centre. A little further out are National Psychosis Unit (1.6 miles north) and St George's Walk (3.1 miles west). Not far away are Bramley Bank and Duppas Hill.
General trades versus a specialist
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.
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
Cost factors for sealant joints
A fixed quote reflects the actual work. It takes account of:
- The total length or number of joints
- The size and state of each joint
- How much existing material needs removing
- Induction, permit and paperwork requirements
The specified product makes a difference, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site rules also count.
Sending details for a quote
We can often quote from photos and a few details. It helps to include:
- Asbestos survey details if the building is older
- Clear photographs of the problem areas
- Any dates the work must fit around
- Where the site is, with the postcode
Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.
Your questions answered
Does a hotel in Addington need to shut while its sealant is renewed?
In the majority of cases no closure is needed: we work room by room or floor by floor. We agree the order of rooms and the timings with you before we start.
Can you work at a site such as Vulcan Way Industrial Estate, by Addington?
Yes. We cover Addington and the area around it, including industrial estates, business parks and retail parks such as Vulcan Way Industrial Estate. A few photographs and the unit address let us price the work.
How long does a job like this take?
That varies with the scale of the job, though a typical visit typically takes a few hours for one area, or a planned series of visits across a bigger building. For bigger or phased jobs, we will set out a timescale with the quote.
Can areas stay open during the work?
We phase the work so parts of the building stay open. Tell us your site hours and access windows and we’ll plan around them.
What about asbestos in old mastic?
It can, on some older buildings. So we check the register first and stop work on anything suspect until it’s tested. HSE guidance on asbestos is a useful reference.
Are your applicators CSCS-carded?
Yes. Our applicators hold CSCS cards, which many sites require.
Is failed sealant stripped out, or sealed over?
Removal comes first, every time. Then the joint is cleaned, primed where the maker specifies, backed to depth and resealed.
Surface by surface
Shop fronts and retail fit-outs
Most shops can’t close for a reseal. We plan around the access windows the store gives us, working in sections where that helps.
Window and door perimeters
Where frames meet the surrounding wall, sealant is the weather line. Failed perimeters are cut out and cleaned, backing goes into deeper gaps, and the joint is resealed with a low-modulus neutral-cure silicone or another suitable product.
Towns and villages near Addington
Also in Addington
How a job runs
Where the site stays busy, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed, then handed back before we move to the next. Planning a London job such as one in Addington starts with access: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we will schedule to suit.
- First, details reach us through the quote form or a site visit.
- The cause is diagnosed and the scope priced as a fixed quote.
- Work is phased around your occupiers where areas need to stay in use.
- Old sealant is cut out completely, never sealed over.
- Each joint gets a suitable sealant, laid to depth and tooled.
- We check the work with you, and the 12-month guarantee starts.
What we need from you
- Tell us which areas need to stay in use
- Make sure the joints can be reached
- Tell us your opening times and when work is allowed
Request a quote
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. For a chat about it beforehand, speak to us on 01277 525 020 or email a schedule or drawings.