Greater London · England
Commercial & hotel sealant in Lee, Greater London
Our applicators work in Lee on sealant work for offices, hotels, washrooms and commercial buildings. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Large numbers of bathrooms needing the same work
- Washroom sealant that looks dirty however often it’s cleaned
- Shower leaks reaching the floor below
How we handle commercial sealant in Lee
For a rental portfolio, resealing between tenants keeps bathrooms and kitchens presentable. Several addresses can be quoted together. If you’re dealing with split sealant around staff kitchen worktops and sinks and rental bathrooms that need resealing between tenants, we can help.
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 Lee, that can mean fire-rated sealant around service openings as well as resealing in shared washrooms and kitchens.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Lee (SE12, SE13, SE3)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Commercial sealant around Lee
Many London buildings have tight access and loading restrictions, so out-of-hours working can be arranged where needed. London’s water is hard, which leaves limescale on sealant, grout and taps.
Schools such as Brindishe Lee School are buildings too, and washroom and kitchen sealant can be programmed around term times or opening hours. If you let a flat or house near Lee station, we can quote for one property or a whole portfolio of rentals. For buildings such as Church of the Good Shepherd, halls and community kitchens see heavy use, and their sealant shows it.
Lee is about 2 miles south of Greenwich, in Greater London. Anywhere in SE12, we cover commercial sealant for homes and businesses. Lee is one of 764 places in Greater London where we work for commercial sealant. Our London page covers work nearby (6 miles or so).
Postcode districts we cover here for commercial sealant: SE12, SE13 and SE3. We cover properties on Old Road, Manor Lane and Mallet Road. Nearby, we also carry out commercial sealant in Hither Green (1 mile west), Horn Park (1 mile south-east), Lewisham (1 mile north-west), Ladywell (1 mile west) and Blackheath (1 mile north). We also work in nearby towns such as London (6 miles north-west), City of Westminster (8 miles north-west), Marylebone (8 miles north-west), Kensington (10 miles west), St Pancras (7 miles north-west) and Shoreditch (6 miles north-west).
Near you in Lee
In Lee, that means homes and buildings near Manor House Gardens, Trinity Church of England School and International Academy of Greenwich, among other places. Lee has its own railway station: Lee station. Other landmarks nearby include Lewisham Shopping Centre (1.1 miles north-west) and Prefab Museum (1.3 miles south). The countryside around Lee includes Summer Hill and Birdbrook Road Nature Reserve.
Quotes for commercial sealant in Lee
You’ll get a clear quote before we start. It’s based on:
- Which sealant suits the joint
- Any working-time requirements on site
- The number of rooms or windows
- The old material and how stubborn it is
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Roughly how big the job is
- Where the property is
- Whether it’s a home or a business
- Pictures of the joints, sent by email
We quote each job on its own, so start by telling us what you need. Simply phone 0345 464 0079 or send us an email and describe the job, and pictures are welcome.
DIY sealant or a professional job?
A DIY attempt does not rule out a professional job. We cut it out and start again.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Certifying fire stopping or building compliance
- Damaged sanitaryware that needs replacing
- A broken extractor fan behind the mould problem
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think before booking.
Where we work in Lee
- Student & care accommodation
- Rental portfolios
- Office washrooms & kitchens
- Retail & leisure sites
- Welfare facilities
- Hotel bathrooms
Questions from Lee
Do you work for hotels and guest houses in Lee?
Yes, hospitality work, including hotels, is part of what we do. Work can be planned room by room, and out-of-hours working can be arranged.
I let a flat near Lee station. Can you help?
Yes, we work for letting agents and landlords. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.
Where is Mr Mastic based?
We are a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Can you do several jobs on one visit?
Yes. Just list everything you need.
Do you offer different sealant colours?
We help you choose a colour that suits, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Can you seal over the old sealant?
No, and we never do. It may look fine at first, but the new layer lifts away from the old one. The old sealant has to come out completely.
Do you provide RAMS?
Tell us what your site asks contractors for. We’ll confirm what we can supply before work is booked.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Don’t leave a failed joint until the next refurbishment
- Keep extractor fans working and serviced
- Keep a record of which rooms were resealed and when
- Tell cleaning staff when each room can be used
Each room is handed back with its cure time, usually around 24 hours. Make sure housekeeping or cleaning staff know it so nobody showers or cleans the joint too early.
In a commercial building, a leak can quickly spread beyond one room: through floors, into ceilings and across into corridors. Early resealing keeps it from getting that far.
Nearby places to Lee
What else we do in Lee
Landlord and commercial work in Lee
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
What happens on the day
Most of a good job is in the preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. In total, it generally takes a few hours for a single washroom, longer for a whole building. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- 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 any work starts.
- 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.
- Rooms are handed back in order, each with its cure time.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Move anything stored near the joints
- Tell us if parking is tricky
Getting a quote
For a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.
Related advice
What the job involves on each surface
Welfare facilities
Staff welfare areas are needed every shift. Work can be split into sections so part of the facilities stays in use.
Retail & leisure sites
Changing areas and showers at leisure sites are wet all day, so anti-fungal sanitary silicone is the product we use.