Greater London · England
Blackfen Commercial Sealant
Sealant work for offices, hotels, washrooms and commercial buildings for householders, landlords and businesses in Blackfen. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Silicone laid over old silicone by a previous contractor
- Leaking joints in shower rooms and changing areas
- Whole floors of tired en suites
About our commercial sealant in Blackfen
Wet areas get anti-fungal sanitary silicone, and kitchens get a food-safe product where it’s needed. Products include Arbo and Everbuild sealants, chosen to suit each joint. If you’re dealing with too many rooms to reseal without closing the building and tired sealant ahead of a health and safety audit, we can help, whatever the surface.
London blocks of flats carry pipes and cables through walls and floors in their common parts and service risers. For managing agents and building owners in Blackfen, that can mean fire-rated sealant around service openings as well as resealing in shared washrooms and kitchens.
All our work is covered by a 12-month guarantee, wherever you are in Greater London.
- Where
- Blackfen (DA15, DA16, SE9)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How it works
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The work itself takes a few hours per room, so whole buildings are phased from start to finish. In Blackfen, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- Tell us the rooms, hours and site rules, and we will plan the programme.
- Tell us what paperwork your site needs, and we confirm what we can supply before we start.
- Old sealant is cut out room by room and joints cleaned and treated.
- Anti-fungal sanitary silicone goes into wet areas, with suitable sealant elsewhere.
- Each finished area is checked with you and given a cure time.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
Need a quote? Please call 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Do you need commercial sealant in Blackfen?
Staff kitchens and food areas see constant splashing and wiping, and grease and cleaning sprays break down sealant. Worktop and sink joints are often the first to go.
Most people get in touch after spotting something like this:
- Failed floor-level joints in accessible wet rooms
- Large numbers of bathrooms needing the same work
- Failed joints in office kitchens and tea points
- Repeated reseals that do not last
If you look after a church, hall or community building such as Church of the Good Shepherd, any kitchen and washrooms need the same sealant care as any other building.
What to look for in a quote
- Whether you can choose the colour
- How hidden problems are handled
- Whether they’re fully insured
- Is VAT in the price?
What happens if it’s left?
In a building with rooms above rooms, a failed shower seal can soon show on a ceiling below. That means a second room out of use and a repair to pay for. Resealing first is the smaller job. In a flat in Blackfen, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or email us.
Why us?
- Tidy, careful work
- Sanitary silicone with an anti-fungal additive in wet areas
- Arbo and Everbuild products
- Domestic, commercial and hotel work
Take a look at our cost guide or our reviews.
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Pass on the cure time to whoever cleans the rooms
- Keep a record of which rooms were resealed and when
- Book larger programmes for quieter times of year
- Include the silicone on your room checklists
Strong chemicals and scourers wear silicone out faster. Ask cleaners to use mild products and soft cloths on the sealant, with stronger products kept off the bead.
Mould in shared washrooms gets noticed and talked about. Left long enough, it spreads through the bead, so the fix is replacement.
Workplaces and buildings in Blackfen
London’s water is hard, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in. Commercial buildings in London often have strict access rules and limited loading, and out-of-hours working is possible to arrange.
For site and facilities teams at buildings such as Our Lady of the Rosary Catholic Primary School, washroom and kitchen sealant can be programmed around term times or opening hours. Letting a property close to Falconwood station? Then several rental properties can be resealed on one programme.
Blackfen is about 2 miles east of Eltham, in Greater London. Jobs in Blackfen get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. 764 places in Greater London are on our list, from the larger towns to small villages. Our London page covers work nearby, about 9 miles away.
All of DA15, DA16 and SE9 is within our area for commercial sealant. We cover properties on Days Lane, Gordon Road and Kent Avenue. Neighbouring places we cover for commercial sealant include Falconwood (1 mile north), Avery Hill (1 mile west), East Wickham (1 mile north), New Eltham (1 mile south-west) and Longlands (1 mile south). We also work in nearby towns such as London (9 miles north-west), City of Westminster (11 miles north-west), Marylebone (11 miles north-west), Kensington (13 miles west), St Pancras (10 miles north-west) and Shoreditch (9 miles north-west).
Near you in Blackfen
In Blackfen, that means homes and buildings near The George Staples pub, Harris Academy Falconwood and Shoulder of Mutton Green. The closest station to Blackfen is Falconwood station, roughly 0.8 miles north-west of the centre. Well-known places in the area include Broadway Shopping Centre (2.3 miles east) and Eltham Community Hospital (1.7 miles west). Not far away are Summer Hill and The Tarn.
What affects the quote in Blackfen
You will get a clear quote before work begins. It’s based on:
- When we can work, for business premises
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
- How many areas need sealing
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.
What we need to know
Photos help, but a description is a good start. Please mention:
- Whether it’s a home or a business
- The problem you’ve noticed
- The rough size of the job
- If someone has resealed it before
Getting a quote is simple: tell us what needs doing and where. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
Also near Blackfen
Other services in Blackfen
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Questions from Blackfen
Do you work for landlords with property near Falconwood station?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Can parking be tricky for a visit in Blackfen?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do you work in Blackfen?
Yes. We work in Blackfen and the rest of Greater London, as part of our work across South East England, London and Scotland. For a quote, call 0345 464 0079 or email us.
Does commercial work come with a guarantee?
Yes, for 12 months. Mild cleaning and good ventilation help it last.
How much does commercial sealant cost in Blackfen?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before work begins.
What should I tell you?
A short description and the location. If we need more, we will ask.
When can guests or staff use the shower again?
Most areas can be used after around 24 hours. We give a cure time for each area.
When something else is needed
We’ll always be straight with you, so here’s what new sealant won’t do:
- A broken extractor fan behind the mould problem
- Faulty shower valves and leaking traps
- Tiles coming off the wall
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly before you book.
Where we work in Blackfen
- Office washrooms & kitchens
- Welfare facilities
- Hotel bathrooms
- Student & care accommodation
- Rental portfolios
- Retail & leisure sites