Southampton · England
Northam Commercial Sealant
Commercial sealant for Northam, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Failed joints in office kitchens and tea points
- Split sealant where wet room floors meet walls
- Rental bathrooms that need resealing between tenants
Commercial buildings in Northam
For seaside hotels, guest houses and holiday lets around Northam, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. There are hotels and other places to stay in and around Northam. Hotel work can be planned room by room, with out-of-hours working where needed.
If you let a flat or house near Bitterne station, we can quote for one property or a whole portfolio of rentals. If you look after a church, hall or community building such as Church of St Augustine, any kitchen and washrooms need the same sealant care as any other building. If you look after a building such as Bitterne Manor Primary School, sealant in washrooms, kitchens and changing areas can be renewed around term times or opening hours.
Northam is about 1 mile south-east of Southampton, in Southampton. Our applicators cover commercial sealant for homes and businesses in Northam and the surrounding area. Across Southampton, we cover 40 places, and Northam is one of them.
We work across SO14, SO19 and SO18 for commercial sealant and the streets around it. Local streets include Sea Road, Lumpy Lane and Cross Road, all of which we cover. If you are just outside Northam, we cover Peartree Green (1 mile south), Bitterne Manor (1 mile north), Itchen (1 mile south-east), St Mary's (1 mile south-west) and Bitterne (1 mile east). Further out, we also cover Regents Park (3 miles west), Maybush (3 miles north-west), Coxford (3 miles north-west), Lordswood (3 miles north-west), Eling (5 miles west) and Rownhams (4 miles north-west).
Local landmarks in Northam
Locally, jobs take us to homes and businesses close to Inspire Enterprise Academy, East Park and The Engineers Arms, among other places. The nearest railway station is Bitterne station, roughly 0.6 miles north of the centre. Nearby you will also find Bitterne Local History Society Heritage And Research Centre (0.8 miles east) and Marlands Shopping Centre (1.2 miles west). The countryside around Northam includes Netley Common.
Commercial sealant in Northam, done properly
Landlords and agents with several properties can have bathrooms and kitchens resealed between tenancies. Several addresses can be quoted together. We work on hotel bathrooms, office washrooms & kitchens and rental portfolios, and people most often call us about large numbers of bathrooms needing the same work and tired sealant ahead of a health and safety audit.
If you run a pub, café, guest house or shop in or near Northam, the washrooms and kitchen need the same attention as a big site, and fire-rated sealant around service openings should be restored after new pipes or cables go through.
Each job carries a 12-month guarantee, large or small.
- Where
- Northam (SO14, SO19, SO18)
- Wider area
- Southampton
- Cover
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Leave it or put it right?
Patching the worst rooms as complaints come in is hard to manage. A planned programme deals with every room in order, keeping disruption down and costs clear. In an older home around Northam, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
A few things move the cost up or down: 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 you get with us
- Arbo and Everbuild products
- A 12-month guarantee on all work
- An ARBOMaster approved applicator
- Fully insured
Read what affects the cost and our reviews.
How the visit works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes anything from a few hours to several days, depending on the number of rooms. Parking around Northam is generally 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.
- Joints are cleaned, treated for mould and dried.
- New sealant suited to each area is applied and tooled.
- Rooms are checked and returned with a cure time so staff know when to use them.
Preparing for the visit
- Tell us if parking is tricky
- Mention any sign-in or site rules at work premises
- Tell us about any water getting in
Ask for a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.
Related advice
Northam questions
Is Northam within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Bitterne station. Can you help?
Yes. We work for landlords and agents as well as homeowners. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Can you work around guests in a hotel?
Normally, yes. The order and timing are agreed with your team, and each room is handed back with a cure time.
Do you remove the old sealant?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we are using.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Different surfaces, different methods
Hotel bathrooms
We work through hotel rooms in agreed batches, so most rooms stay available. Each room is handed back with its cure time for housekeeping.
Student & care accommodation
Care homes need careful planning around residents, and staff are told when each bathroom can be used.
Places near Northam
What else we do in Northam
When it is not the sealant
To be straight with you, some problems need a different trade:
- A broken extractor fan behind the mould problem
- Failed tanking or loose tiles behind the sealant
- Damaged sanitaryware that needs replacing
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Joints and surfaces we work on
- Student & care accommodation
- Welfare facilities
- Hotel bathrooms
- Office washrooms & kitchens
- Rental portfolios
- Retail & leisure sites
How we quote for commercial sealant
We don’t publish a price list. The quote depends on:
- The type of sealant required
- Any working-time requirements on site
- How many areas need sealing
- How much old sealant there is and how hard it is to remove
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- Any access issues, like height or stairs
- Pictures of the joints, sent by email
- Whether it’s a home or a business
- Whether it has been sealed before
We quote each job on its own, so the first step is telling us about yours. Simply phone 0345 464 0079 or email us and describe the job.
Landlord and commercial work in Northam
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.