Hampshire · England
Commercial & hotel sealant in Catherington, Hampshire
Commercial sealant for Catherington, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Washroom sealant that looks dirty however often it’s cleaned
- Silicone laid over old silicone by a previous contractor
- Mouldy bathrooms flagged at a tenancy check
Why deal with it now?
Fixing rooms one complaint at a time is the slow way. A planned programme deals with every room in order, keeping disruption down and costs clear. Older cottages and farmhouses around Catherington can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What you get with us
- You choose the colour before work begins
- Approved under the ARBOMaster scheme
- White, clear, grey or another colour, product permitting
- Experience in homes, commercial sites and hotels
Read what affects the cost and what customers say.
Commercial sealant in Catherington, done properly
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 provide. Common call-outs are for tired sealant in let properties and tired sealant ahead of a health and safety audit, across rental portfolios, office washrooms & kitchens and student & care accommodation.
If you have holiday lets, a converted barn used for business or a community building near Catherington, the washrooms, kitchens and any fire-rated joints need the same care as a big site.
Every job is covered by our one-year guarantee, wherever you are in Hampshire.
- Where
- Catherington (PO8)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026

Honest limits
To be straight with you, there are a few things sealant will not fix:
- Assessing what fire stopping a building needs
- Poor ventilation that keeps bringing mould back
- Faulty shower valves and leaking traps
If you’re not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
Where we work in Catherington
- Welfare facilities
- Rental portfolios
- Retail & leisure sites
- Student & care accommodation
- Hotel bathrooms
- Office washrooms & kitchens
Also in Catherington
Quotes for commercial sealant in Catherington
The price is agreed before any work begins. It takes into account:
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
- Working hours on commercial sites
- The size of the job
What you pay reflects the work, not guesswork. That is why we ask about the job first and send you a clear quote before any work starts.
Asking for a quote
To help us quote quickly, please include:
- The rough size of the job
- Where the job is, and your postcode
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
For a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.
Catherington: your questions answered
Can you help a landlord with a rental near Rowlands Castle station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Can you do commercial sealant in Catherington?
Yes. Our work covers London and the South East, and Catherington is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
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.
Where do you work from?
We’re a Crawley-based firm. Our area covers South East England, London and Scotland.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
How long will you be here?
Most jobs take as long as the scope needs, from one welfare room to a full building, including preparation and clearing up. Your quote will say how long we expect yours to take.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
How to look after the new joints
To keep the joints looking good and working properly:
- Plan resealing around quiet periods
- Check the joints during routine room inspections
- Give housekeeping the cure time for every room
- Get split or lifting joints looked at early
Ask staff to report splits or lifting sealant early. Catching one split early can save a leak later, and if anything looks wrong, just call 0345 464 0079 or email us.
Mould in shared washrooms gets noticed and talked about. Left long enough, it spreads through the bead, so the fix is replacement.
Common problems we fix in Catherington
Larger buildings move, and stud walls move more than solid ones. Joints between different materials take the strain.
Keep an eye out for any of the following:
- Mouldy washroom sealant that staff and guests notice
- Split sealant around staff kitchen worktops and sinks
- Repeated reseals that don’t last
- Rental bathrooms that need resealing between tenants
For site and facilities teams at buildings such as Catherington Church of England Infant School, sealant in washrooms, kitchens and changing areas can be renewed around term times or opening hours.
Comparing quotes
- The length of the guarantee
- How the colour is chosen
- How the surfaces are prepared before sealing
- Whether the sealant suits the joint
Workplaces and buildings in Catherington
Most of the South East has hard water, so limescale builds up on sealant, grout and fittings.
For landlords with property near Rowlands Castle station, we can quote for one property or a whole portfolio of rentals. For buildings such as Church of All Saints, any kitchen and washrooms need the same sealant care as any other building.
Catherington is about 2 miles north of Horndean, in Hampshire. Catherington gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. 683 places in Hampshire are on our list, large and small. For nearby work, see our Portsmouth page (9 miles or so).
Every address in PO8 is covered for commercial sealant, from the main roads to the quietest streets. If you need commercial sealant at a property on Glamorgan Road, Wrexham Grove and White Dirt Lane or a nearby road, our applicators can take on the job. Nearby, we also carry out commercial sealant in Clanfield (1 mile north), Lovedean (2 miles south-west), Horndean (2 miles south), Wecock Farm (2 miles south-west) and Anmore (3 miles south-west). We also work in nearby towns such as Gosport (11 miles south-west), Havant (5 miles south), Eastleigh (15 miles west), Fareham (10 miles south-west), Alton (15 miles north) and Hedge End (13 miles west).
Landmarks near Catherington
We work in homes and buildings around Horndean Technology College and the streets around them. The closest station to Catherington is Rowlands Castle station, roughly 3.5 miles south-east. Well-known places in the area include Havant War Memorial Hospital (5.3 miles south) and Clanfield Earthwork (1.7 miles north-east). Open spaces near Catherington include Windmill Hill.
Different surfaces, different methods
Office washrooms & kitchens
Staff toilets, washrooms and kitchens get constant use, so the work can be arranged for quieter times. Basins, urinals, worktops and sinks are all resealed.
Hotel bathrooms
We can plan around check-out and check-in times, with the order agreed with your team.
How the visit works
When we arrive, we look over the joints with you first. We protect the surfaces around the joints before work begins. The work generally takes anything from a few hours to several days, depending on the number of rooms. For a village or hamlet like Catherington, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We agree a programme with you: which rooms, in what order, at what times.
- We go through your site’s paperwork needs, such as RAMS, before work begins.
- 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.
Before we arrive
- Clear items away from the joints we’re working on
- Tell us about access, such as stairs, a lift or high-level joints
- Try not to wet indoor joints just before the visit
Ask for a quote
Want a quote for commercial sealant? Please phone 0345 464 0079 or send us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
