Kent · England
Headcorn Commercial Sealant
Sealant work for offices, hotels, washrooms and commercial buildings for householders, landlords and businesses in Headcorn. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mouldy washroom sealant that staff and guests notice
- Repeated reseals that do not last
- Split sealant where wet room floors meet walls
What commercial sealant looks like in Headcorn
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.
Community buildings like St Peter's and St Paul's Church are part of the picture too: its kitchen and washroom sealant needs looking after like anywhere else. Schools such as Headcorn Primary 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 Headcorn station, sealant work can be quoted for a single flat or a whole portfolio.
Headcorn is about 8 miles south-east of Maidstone, in Kent. Wherever you are in the TN27 postcode area, our applicators can take on commercial sealant. Headcorn is one of 922 towns and villages in Kent where we work. We also work in Crawley, around 36 miles away.
We work across TN27 for commercial sealant and the streets around it. Local streets include Station Road, High Street and Knight's Way, and we cover them all. Neighbouring places we cover for commercial sealant include Hearnden Green (1 mile north-west), Southernden (2 miles north-east), Swift's Green (2 miles east), Lashenden (2 miles south) and Smarden Bell (2 miles south-east). Within a short drive, we also cover Maidstone (8 miles north-west), Ashford (11 miles east), Sittingbourne (13 miles north), Tonbridge (15 miles west), Faversham (15 miles north-east) and Kings Hill (12 miles north-west).
Local landmarks in Headcorn
Around Headcorn, our work takes us to homes and buildings near The Kings Arms Inn And Shop Adjoining To Right and the streets around them. Headcorn has its own railway station: Headcorn station. A little further out are Sutton Valence Castle (3.2 miles north-west) and Benenden Hospital (5.8 miles south).
Commercial sealant for homes and businesses in Headcorn
Mr Mastic brings more than 20 years’ experience to commercial sites, and we are fully insured and ARBOMaster approved. If your site needs RAMS or insurance details, tell us, and we’ll confirm what we can supply with the quote. We work on office washrooms & kitchens, student & care accommodation and welfare facilities, and the jobs we see most are sealant failing again soon after quick repairs and split sealant around staff kitchen worktops and sinks.
Commercial work around a smaller place like Headcorn normally means a pub, a shop, a school or small business units rather than office blocks. The work is the same as in a big building, just on a smaller scale.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.

- Location
- Headcorn (TN27)
- Wider area
- Kent
- Cover
- A year, on every job
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Add sealant to your planned maintenance checks
- Leave squeegees in busy showers
- Check extract fans are actually running
- Pass on the cure time to whoever cleans the rooms
Extract fans need to work. Where a room has no window, the fan is what dries it out, and mould comes back faster without it.
Black sealant in a staff washroom or guest bathroom draws complaints. The longer it’s left, the deeper it grows into the silicone, so the fix is replacement.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Also in Headcorn
What sealant work cannot fix
New sealant can’t fix everything, and we’d rather say so up front. Sealant will not put right:
- Certifying fire stopping or building compliance
- Extraction that isn’t working, which needs an electrician or ventilation contractor
- Tiles coming off the wall
If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer before you book.
Surfaces we seal
- Hotel bathrooms
- Office washrooms & kitchens
- Retail & leisure sites
- Welfare facilities
- Student & care accommodation
- Rental portfolios
Headcorn questions
Can you do commercial sealant in Headcorn?
Yes. Our work covers London and the South East, and Headcorn is part of that. You can call 0345 464 0079 or email us and tell us what needs doing.
Is Headcorn within the area you cover?
Yes. Headcorn 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.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover Headcorn, along with the rest of our area.
What do you put in the joint?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we are using and why.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
How long will you be here?
A typical job takes a few hours for a single washroom, longer for a whole building, including the preparation. Your quote will say how long we expect yours to take.
How do I get a quote for commercial sealant in Headcorn?
Size, access and the old material all affect the cost. Ask us for a quote and we will talk you through it.
Why act early in Headcorn
Before an inspection, audit or busy season, sealant is easy to overlook. Planning the work ahead means rooms are finished and cured in time. Around Headcorn, water from a failed joint in an older home can soak into timber and plaster, and that is a much bigger job than renewing the sealant.
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first.
Why book with us
- More than 20 years in sealant work
- Sealant colour chosen to suit
- An ARBOMaster approved applicator
- Domestic, commercial and hotel work
See our cost guide or what customers say.
What affects the cost of commercial sealant
There’s no set price list, because jobs vary so much. The quote depends on:
- How many rooms, windows or areas are involved
- Which sealant suits the joint
- Mould in or behind the old joints
- How easy the joints are to reach
The cost depends on the amount of work, 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.
Helping us quote
What to tell us when you ask for a quote:
- Photos by email, if that’s easy
- The problem you’ve noticed
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will talk you through the work.
Different surfaces, different methods
Hotel bathrooms
We can plan around check-out and check-in times.
Student & care accommodation
Care homes need careful planning around residents, with each bathroom handed back with its cure time.
The process
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. It normally takes a few hours per room, so whole buildings are phased. Parking around Headcorn is usually easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- We walk the site with you and agree the rooms, the order and the hours.
- Every area is sheeted and the old silicone stripped out.
- We clean the joints, treat any mould and let them dry.
- Anti-fungal sanitary silicone goes into wet areas, with suitable sealants elsewhere.
- Rooms are checked and returned with a cure time so staff know when to use them.
Getting ready for the visit
- Let us know about parking restrictions
- For indoor joints, keep the area dry beforehand if you can
- For business premises, tell us about site rules or sign-in
How to get a quote
Every job is quoted individually, so the first step is telling us about yours. Simply ring 0345 464 0079 or send us an email and describe the job, and photos are welcome.
