Medway · England
Commercial & hotel sealant in Grain, Medway
We cover Grain for 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.
- Worktop sealant that has shrunk and stained
- Joints that need doing before an inspection or audit
- Whole floors of tired en suites
Why act early in Grain
In a building with rooms above rooms, a failed shower seal can soon show on a ceiling below. Then two rooms are out of action, not one. A reseal now avoids that. Around Grain, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Why choose Mr Mastic in Grain
- Sanitary silicone with an anti-fungal additive in wet areas
- Fully insured
- We leave the area clean and tidy
- White, clear, grey or coloured to suit, where the product allows
See our cost guide or customer reviews.
How we handle commercial sealant in Grain
With over 20 years in sealant work, we’re a fully insured, ARBOMaster approved team. Tell us what paperwork your site needs, such as RAMS or insurance details, and we’ll confirm what we can supply with the quote. We work on retail & leisure sites, welfare facilities and student & care accommodation, and common reasons people get in touch are failed joints in office kitchens and tea points and whole floors of tired en suites.
For a small place like Grain, the journey and timings are agreed in advance, so it can be fitted around guests, clients or events where possible.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Grain (ME3)
- Wider area
- Medway
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Places near Grain
Other services in Grain
How it works
You do not need to clear the whole room or building, only the area right around the joints. We protect the rest, and the work takes as long as the scope needs, from one welfare room to a full building in most cases. Somewhere as small as Grain, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We walk the site with you and agree the rooms, the order and the hours.
- Room by room, we protect the area and remove all the old sealant.
- We clean the joints, treat any mould and let them dry.
- We lay the right sealant for each area, with anti-fungal silicone in wet rooms.
- We check every room and give its cure time for housekeeping.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Tell us about access, such as stairs, a lift or high-level joints
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will talk you through the work.
Advice
What we’re called out for in Grain
Plenty of commercial bathrooms have no window at all, so if the fan is weak, steam lingers and the sealant stays damp. That is when black mould sets into the bead.
Common reasons people contact us include:
- Shower leaks reaching the floor below
- Sealant failing again soon after quick repairs
- Washrooms that need sorting before an inspection
- Washroom sealant that looks dirty however often it’s cleaned
Managing a site like St James Church of England Primary Academy? Then busy washrooms and kitchens can be resealed in phases so they stay open.
What your quote should include
- Is the old sealant removed completely?
- Which colour the sealant will be
- How hidden problems are handled
- Is VAT in the price?
Workplaces and buildings in Grain
For seaside hotels, guest houses and holiday lets around Grain, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. Most of the South East has hard water, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
For buildings such as Church of St James, halls and community kitchens see heavy use, and their sealant shows it. Rented homes near Sheerness-On-Sea station change hands often, and several rental properties can be resealed on one programme.
Grain is about 5 miles north-west of Minster, in Medway. Whether you are in the middle of Grain or further out, we cover commercial sealant for every kind of property. Grain is one of 68 towns and villages in Medway where we work. We also work in Chelmsford, around 22 miles away.
Every address in ME3 is within our area for commercial sealant. Local streets include High Street, Power Station Road and Chapel Road, all of which we cover. We also cover Wallend (1 mile west), Blue Town (2 miles south-east), Sheerness (2 miles south-east), Queenborough (3 miles south-east) and Rushenden (3 miles south). Larger places within reach include Gillingham (8 miles south-west), Chatham (10 miles south-west), Rochester (10 miles south-west), Rainham (8 miles south-west), Strood (11 miles south-west) and Luton (10 miles south-west).
Local landmarks in Grain
Locally, jobs take us to homes and businesses close to The Hogarth Inn, among other places. The nearest railway station is Sheerness-On-Sea station, about 2.1 miles south-east of the centre. Other landmarks nearby include Bluetown Heritage Centre (1.8 miles south-east).
Surface by surface
Student & care accommodation
Care homes need careful planning around residents, with each bathroom handed back with its cure time.
Rental portfolios
Landlords and agents can have several properties resealed in one programme, with each one done when access suits.
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
What affects the quote in Grain
The quote reflects the job in front of us. We look at:
- How much old sealant there is and how hard it is to remove
- The number of rooms or windows
- The number and length of the joints
- The product the joint needs
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. We take all of that into account in your quote.
Asking for a quote
Before you ask for a quote, have a think about:
- What the problem is, such as mould, gaps, leaks or cracking
- How we’d reach the joints
- The rough size of the job
- If someone has resealed it before
Need a quote? Please phone 0345 464 0079 or email us with a few details. We will explain what we’d do and give you a clear price before we start.
Work for landlords, hotels and businesses
We work for landlords and agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Grain questions
Can you help a landlord with a rental near Sheerness-On-Sea 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 drop us an email with the address and what needs doing, and we’ll send you a clear quote.
Will you come out to Grain?
Yes. Grain is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access.
Do you take on large, multi-room jobs?
Yes. Our team has more than 20 years’ experience, and large programmes are planned around how the building is used.
Do the sealants smell?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme.
Can you start early or work out of hours?
Early starts and out-of-hours work can be arranged. Let us know your hours when you get in touch.
Where do you work from?
Mr Mastic is based in Crawley. We cover Grain and the rest of Medway, along with the rest of our area.