Hampshire · England
Commercial Sealant in Clayhall
Sealant work for offices, hotels, washrooms and commercial buildings for homes and businesses in Clayhall and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Water marks on ceilings under bathrooms
- Mouldy washroom sealant that staff and guests notice
- Large numbers of bathrooms needing the same work
Commercial sealant for homes and businesses in Clayhall
Commercial work is planned around the building, not the other way round. Rooms can be done one at a time, floor by floor or in batches, and early starts or out-of-hours working can be arranged. Typical jobs include mouldy washroom sealant that staff and guests notice and leaks from showers into rooms or ceilings below, across retail & leisure sites, office washrooms & kitchens and rental portfolios.
Commercial work around a smaller place like Clayhall 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.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.

- Where
- Clayhall (PO12)
- Region
- Hampshire
- Cover
- A year, on every job
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we cannot put right
A few problems are outside what sealant work can do:
- Water coming from plumbing rather than sealant
- Assessing what fire stopping a building needs
- Damaged sanitaryware that needs replacing
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Joints and surfaces we work on
- Welfare facilities
- Retail & leisure sites
- Rental portfolios
- Hotel bathrooms
- Student & care accommodation
- Office washrooms & kitchens
What happens if it’s left?
First impressions are often made in the washroom. Black sealant makes a clean room look dirty, and cleaning rarely puts it right. New sealant does. In an older home around Clayhall, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
Why choose Mr Mastic in Clayhall
- White, clear, grey or another colour, product permitting
- Domestic, commercial and hotel work
- 4.9 on Google from 180+ five-star reviews
- We agree the colour with you first
See how sealant jobs are priced and our reviews.
Also near Clayhall
Also in Clayhall
How the job changes by surface
Office washrooms & kitchens
Long vanity tops have joints that hold water and grime. It’s cut out, cleaned and resealed in one neat line.
Student & care accommodation
Many accommodation blocks have rows of similar en suites. We agree a programme and work through them steadily.
Quotes for commercial sealant in Clayhall
Some jobs are bigger than they look, and some smaller. The main factors:
- The old material and how stubborn it is
- The size of the job
- Any mould that needs treating
- Working hours on commercial sites
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will explain what it covers.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Where the property is
- If it’s domestic, commercial or a hotel
- Photos by email, if that’s easy
- What the problem is, such as mould, gaps, leaks or cracking
There’s no standard price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.
How it works
On the day, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before work begins. Most jobs take a few hours per area, with larger sites planned over several visits. A visit to Clayhall is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- 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 work begins.
- Old sealant is cut out room by room and joints cleaned and treated.
- We reseal with the right product for each joint.
- Rooms are handed back in order, each with its cure time.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Mention any tricky access
- Move anything stored near the joints
Ask for a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or send us an email.
Advice
Signs you need commercial sealant in Clayhall
Staff kitchens and food areas see constant splashing and wiping, and grease and cleaning sprays break down sealant. The worktop and sink edges normally fail first.
Signs it’s time to call us include:
- Split sealant where wet room floors meet walls
- Black, stained silicone in guest bathrooms
- Failed joints in office kitchens and tea points
- Sealant failing again soon after quick repairs
Community buildings like St Francis are part of the picture too: its kitchen and washroom sealant needs looking after like anywhere else.
Before booking anyone
- How much experience the applicator has
- How hidden problems are handled
- Whether they’re fully insured
- How the colour is chosen
Questions from Clayhall
Is Clayhall within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
I let a flat near Portsmouth Harbour station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear price.
Can new sealant go over the old?
No, because it fails. We remove every bit of old sealant first.
Do the sealants smell?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
Can you work around guests in a hotel?
Yes. We agree the room order and times with your managers, and you’ll know when each room can be used.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before resealing.
What does commercial sealant cost?
Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or send us an email with a short description of the job.
Where do you work from?
We work from Crawley. We cover Clayhall and the rest of Hampshire, along with the rest of our area.
Can I do it myself?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
Commercial sealant around Clayhall
For seaside hotels, guest houses and holiday lets around Clayhall, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. Hard water is the norm across most of the South East, which leaves limescale on sealant, grout and fittings.
If you look after a building such as Haselworth Primary School, washroom and kitchen sealant can be programmed around term times or opening hours. Rented homes near Portsmouth Harbour station change hands often, and sealant work can be quoted for a single flat or a whole portfolio.
Clayhall is about 2 miles south-east of Gosport, in Hampshire. Every kind of property in Clayhall is covered for commercial sealant. The work is guaranteed for a year. Our Hampshire coverage runs to 683 places, Clayhall among them.
Work in PO12 is quoted and booked the same way as anywhere else. We cover properties on The Lane, Old Road and Fort Road and the roads around them. Other places close to Clayhall include Haslar (1 mile south-east), Alverstoke (1 mile west), Portsmouth Point (1 mile north-east), Privett (1 mile north-west) and Portsea (2 miles north-east). Further out, we also cover Havant (8 miles north-east), Fareham (6 miles north-west), Horndean (10 miles north-east), Hedge End (12 miles north-west), Waterlooville (8 miles north-east) and Purbrook (7 miles north-east).
Landmarks near Clayhall
Typical jobs here are in homes near Bay House School, The Fighting Cocks pub and St Vincent College, among other places. The closest station to Clayhall is Portsmouth Harbour station, about 1.4 miles north-east of the centre. Other landmarks nearby include Gosport War Memorial Hospital (1 mile north-west) and Search (0.9 miles north). Open spaces near Clayhall include West of the River Alver.
