Greater London · England
Commercial Sealant in Finchley
Sealant work for offices, hotels, washrooms and commercial buildings for householders, landlords and businesses in Finchley. Fully insured, ARBOMaster approved and guaranteed for a year.
- Silicone laid over old silicone by a previous contractor
- Mouldy washroom sealant that staff and guests notice
- Split sealant around staff kitchen worktops and sinks
Keeping the joints in good condition
Looking after new joints is easy:
- Schedule work around occupancy
- Encourage users to squeegee shower walls
- Act on lifting sealant before it leaks
- Use mild cleaners on sealant, not bleach or abrasives
Squeegees in guest and staff showers help: less water sits on the joints between uses.
A room that can’t be let or used is lost income. Small sealant faults caught early can be fixed between bookings or tenancies, instead of turning into a leak that closes the room.
How we handle commercial sealant in Finchley
Bigger commercial jobs in Finchley begin with a site walk to agree the scope, the order and the working hours. You then get one clear quote for the whole job. To set one up, phone 0345 464 0079 or drop us an email. If you have failed joints in office kitchens and tea points and silicone laid over old silicone by a previous contractor, we can put it right, on welfare facilities, rental portfolios and hotel bathrooms alike.
In London’s blocks of flats, service risers and common parts have pipes and cables passing through walls and floors. For managing agents and building owners in Finchley, that can mean fire-rated sealant around service openings as well as resealing in shared washrooms and kitchens.
You get a one-year guarantee, the same in Finchley as everywhere else we work.
- Where
- Finchley (N3, N2, N12, NW11)
- Wider area
- Greater London
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Nearby places to Finchley
Also in Finchley
Signs you need commercial sealant in Finchley
Commercial bathrooms get far more use than domestic ones, and they’re cleaned with strong products every day. So the silicone ages faster than it would at home.
These are the problems we are asked about most:
- Worktop sealant that has shrunk and stained
- Tired sealant ahead of a health and safety audit
- Repeated reseals that don’t last
- Failed floor-level joints in accessible wet rooms
Rented homes near New Southgate station change hands often, and we can quote for one property or a whole portfolio of rentals.
What your quote should include
- Whether all the old sealant comes out first
- What the quote includes, VAT included or not
- How the joint is cleaned and prepared
- What product goes in the joint
What affects the quote in Finchley
The quote reflects the job in front of us. We look at:
- Which sealant suits the joint
- The amount of work
- The number of rooms or windows
- Working hours on commercial sites
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we’ll explain what it covers.
What to tell us for a quote
Before you ask for a quote, have a think about:
- Whether it has been sealed before
- A few pictures by email, if you can
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will explain what’s involved before giving you a price.
Work for landlords, hotels and businesses
For anyone letting property in or around Finchley, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
What the job involves on each surface
Welfare facilities
Staff welfare areas are needed every shift. Work can be split into sections so some facilities stay open.
Student & care accommodation
Halls and care homes often have many near-identical bathrooms. We agree a programme and work through them steadily.
Why act early in Finchley
Sealant work is quick by the room: it takes a morning for a small washroom, and a planned programme for bigger sites. After that, each area needs its cure time before use, so the programme is planned around cure times. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Finchley, the repair is bigger than a sealant job.
Doing several joints on one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. We will give you a clear price for the lot.
Why choose Mr Mastic in Finchley
- Trusted Arbo and Everbuild sealants
- More than 20 years in sealant work
- An ARBOMaster approved applicator
- A choice of colours where the product allows
Read our cost guide and our reviews.
Finchley: your questions answered
Can you help a landlord with a rental near New Southgate station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.
Do you cover Finchley for commercial sealant?
Yes, Finchley is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing.
Can the hotel stay open while you work?
Yes. We work through rooms in batches, so only a few are out of use at once. Each room comes back with its cure time for housekeeping.
Do you offer different sealant colours?
Generally, yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before we start.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
How long do rooms need to be out of use?
Most areas can be used after around 24 hours. Each room is handed back with the cure time for the product used.
What happens on the day
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take as long as the scope needs, from one welfare room to a full building. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Finchley. A visitor permit or a nearby bay makes the visit run more smoothly.
- The first visit is a look round the site to agree the scope.
- We agree when we’ll work, with early or out-of-hours slots where they can be arranged.
- Each area is protected and stripped of old sealant.
- Joints are dried, then resealed and tooled neatly.
- Housekeeping or site staff are told when each area can be used.
Before we arrive
- Try not to wet indoor joints just before the visit
- Tell us if parking is tricky
- Mention if the joints have been sealed before
Getting a quote
Want a quote for commercial sealant? Please phone 0345 464 0079 or drop us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
What commercial sealant looks like in Finchley
Commercial buildings in London often have strict access rules and limited loading, and out-of-hours working is possible to arrange. London’s water is hard, which leaves limescale on sealant, grout and taps, and it has to be cleaned off before new sealant goes in.
If you look after a church, hall or community building such as St Paul's Finchley, halls and community kitchens see heavy use, and their sealant shows it. As a London address, Finchley can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Finchley is about 6 miles north of City of Westminster, in Greater London. Homes, rented property, offices and hotels in Finchley can book us for commercial sealant, old or new, large or small. The work is guaranteed for a year. We cover 764 towns and villages across Greater London, large and small. London is on our list too, around 8 miles away.
Jobs for commercial sealant in N3, N2, N12 and NW11 is quoted and booked the same way as anywhere else. Whether your property is on Station Road, Chaplin Square and Market Place or a nearby road, we can help. Finchley is on the B1462, which makes it straightforward to reach. Other places close to Finchley include Church End (1 mile west), Woodside Park (1 mile north), North Finchley (1 mile north), Friern Barnet (2 miles north-east) and Oakleigh Park (2 miles north). We also work in nearby towns such as London (8 miles south-east), City of Westminster (6 miles south), Marylebone (6 miles south), Kensington (7 miles south), St Pancras (6 miles south-east) and Shoreditch (7 miles south-east).
Local landmarks in Finchley
In Finchley, that means homes and buildings near The Elephant Inn, Bishop Douglass School and Francis Skaryna Belarusian Library and Museum, among other places. Also close by are Victoria Park (within half a mile north) and Woodhouse College (1 mile north-east). Finchley’s nearest station is New Southgate station, about 1.9 miles north-east of the centre. Well-known places in the area include Finchley Memorial Hospital (less than half a mile north-east) and Grand Arcade (1 mile north). The countryside around Finchley includes Highgate Hill and Lakeside Nature Reserve.