Hampshire · England
Floor & skirting joints in Haslar, Hampshire
Sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints in Haslar, with a 12-month guarantee on every job. Call for a quick quote.
- Failed joint filler in concrete floors
- Perimeter joints in tiled floors filled with grout
- Open joints that fill with dirt
Joints and finishes in Haslar homes
Across Hampshire, floors range from older suspended timber floors to concrete slabs in newer homes and commercial units, and they do not all move the same way. That is why the skirting and threshold joints need a flexible seal.
Schools such as Haselworth Primary School are buildings too, and entrance and corridor floor joints take a lot of traffic. If you look after a church, hall or community building such as St Francis, joints in its floors, skirtings and thresholds need resealing as they wear. Rented homes near Portsmouth Harbour station change hands often, and a tidy floor and skirting joint helps a rental look ready for the next tenant.
Haslar is about 2 miles south-east of Gosport, in Hampshire. For floor joint sealing in and around Haslar, please ring 0345 464 0079 or drop us an email for a quick quote. We cover Hampshire from our Crawley base, Haslar included. Haslar is one of 683 towns and villages in Hampshire we cover for floor joint sealing.
We work across PO12 for floor joint sealing. You will find streets such as Froude Road, Military Road and Monckton Road, all of which we cover. Nearby, we also carry out floor joint sealing in Clayhall (1 mile north-west), Alverstoke (1 mile west), Portsmouth Point (1 mile north-east), Privett (2 miles north-west) and Portsea (2 miles north-east). We also work in nearby towns such as 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).
What’s near Haslar
We work in homes and buildings around The Fighting Cocks pub, Bay House School and St Vincent College and the streets around them. The nearest railway station is Portsmouth Harbour station, roughly 1.5 miles north-east. Well-known places in the area include Tricorn Centre (2.3 miles north-east) and Southsea Castle (1.8 miles east). For a walk, there’s West of the River Alver.
Floor joint sealing for homes and businesses in Haslar
Where skirting is painted, we can use a flexible sealant that takes paint. In wet areas we’d normally use silicone, which is not made to be painted. If you have open joints that fill with dirt and worn sealant at door thresholds, we can help, whatever the surface.
Older homes in small places like Haslar often have timber floors that move with the seasons, which is why skirting and threshold joints need a flexible sealant, not filler.
All of our work is guaranteed for twelve months.

- Location
- Haslar (PO12)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How the job changes by surface
Skirting boards
Skirting pulls away from the floor as floors shrink and settle. We seal them with a flexible sealant rather than caulk in a colour to suit.
Wet room and bathroom floors
Wet room floors rely on sound joints at the walls. It’s resealed with a sanitary silicone and we will say if the problem looks like more than the joint.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Why deal with it now?
Floor joints left open collect dirt that’s hard to clean out and makes the floor look worn. Sealed joints are easier to keep clean and look tidier. Where a wall is exposed, as many are in small places like Haslar, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
What it costs depends on how much there is to do, how hard the old material is to remove and access to the work. We give a clear quote before we start, so you know where you stand.
What you get with us
- An ARBOMaster approved applicator
- Old sealant always removed completely
- Anti-fungal sanitary silicone in wet areas
- 180+ five-star Google reviews
Read what affects the cost or our reviews.
FAQs for Haslar
Do you cover smaller places like Haslar?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you do floor joint sealing in Haslar?
Yes, Haslar is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing.
When can I walk on the floor?
We will tell you before we leave. It depends on the sealant, and light foot traffic is normally fine before wet cleaning or wheels.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will tell you what we’re using.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Can you add a movement joint to a tiled floor?
Often, yes, at the edges and along suitable lines. We remove the grout and seal the line with flexible sealant, giving the floor room to move.
What we can’t put right
We won’t take on work that will not last, so here’s what sealant cannot put right:
- Movement too big for a sealant joint
- Leaks from a failed tanking system
- Bouncy or failing floorboards
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly.
Surfaces we seal
- Concrete floor joints
- Skirting boards
- Tiled floors
- Wet room & bathroom floors
- Commercial floors
- Thresholds
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Don’t fill floor joints with caulk where they move or get wet
- Avoid sloshing water against skirting
- Have a cracking tiled floor checked before tiles break
- Lift furniture rather than dragging it across joints
Silicone sealant is not made to take paint. If you plan to paint, we’ll use a paintable product.
Water getting into floor joints in bathrooms and kitchens can damage what’s underneath. A sound seal stops that happening.
Towns and villages near Haslar
Other services in Haslar
How it works
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for most rooms, longer for large commercial floors. Somewhere like Haslar needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We start by checking the floor, the joint and what traffic it takes.
- Any old caulk, grout or sealant is raked or cut out.
- The joint is vacuumed clean and backing fitted where needed.
- We apply the sealant in a colour that suits the floor.
- We tool it neatly and tell you when it can be walked on and cleaned.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Tell us if parking is tricky
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, call 0345 464 0079 or drop us an email.
Related advice
What affects the cost of floor joint sealing
We quote each job individually. This is what makes a difference:
- The number and length of the joints
- Mould in or behind the old joints
- How many rooms, windows or areas are involved
- Whether old sealant or filler has to be cut out
Doing several joints on one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Helping us quote
You don’t need to know the technical terms. It helps if you can tell us:
- If it’s domestic, commercial or a hotel
- A few pictures by email, if you can
- Whether it has been sealed before
- How many joints, rooms or windows are involved
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, phone 0345 464 0079 or send us an email.
