Southampton · England
Regrouting in Thornhill, Southampton
Tiled areas in Thornhill need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Grout washed out of a shower
- Cracked or crumbling grout lines
- Grout in a colour the owner wants to change
How we handle regrouting in Thornhill
Our applicators rake out the old grout to an even depth, without damaging the edges of the tiles. After vacuuming, new grout goes in and the tiles are wiped clean, and the corners get fresh silicone. We work on kitchen splashbacks, shower walls and wet rooms, and people most often call us about greasy, stained grout behind the hob and stained grout that cleaning won’t shift.
Even in a smaller place like Thornhill, bathrooms and kitchens see heavy daily use. Older or newer, every room gets the same approach: old sealant or grout cut out, joints cleaned and dried, and a fresh finish laid.
All our work comes with a one-year guarantee, wherever you are in Southampton.

- Location
- Thornhill (SO19, SO18, SO30)
- Wider area
- Southampton
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Different surfaces, different methods
Kitchen splashbacks
A splashback can be regrouted without touching the worktop. The worktop edge is finished with silicone.
Corners and edges
Internal corners move, so they get silicone, not grout.
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Wipe water off the walls when you are done
- Have loose tiles looked at early
- Clean grout with a mild bathroom cleaner
- Skip wire brushes and scourers
Have any tile that moves checked right away. A loose tile cracks the grout around it and open a path for water.
If grout in the shower is washing out, act soon. Each shower drives water into the open joints and it can end up in the wall or the ceiling below.
Honest limits
We will always be straight with you, so here’s what sealant cannot fix:
- Leaks from pipes, valves or wastes (a plumber’s job)
- Failed tanking or waterproofing under the tiles
- Tiles that have come away from the wall
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.
Surfaces we seal
- Bathroom floors
- Tiled floors
- Shower walls
- Wet rooms
- Kitchen splashbacks
- Bathroom wall tiles
Quotes for regrouting in Thornhill
Jobs vary more than people expect. The main factors:
- How many areas need sealing
- The amount of work
- Which sealant suits the joint
- How easy the joints are to reach
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
What we need to know
When you call or email, these details help:
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
- If someone has resealed it before
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
What regrouting looks like in Thornhill
Thornhill is within about 3 miles of the coast. Near the coast, holiday lets and guest houses can see bathrooms used by one guest after another, and sealant and grout that work that hard wear out sooner. Most of the South East has hard water, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
Letting a property close to Sholing station? Then a regrout while the flat is empty is quicker than working around a tenant. If you look after a building such as Thornhill Primary School, we reseal washrooms and kitchens in schools and businesses as well as homes. For an older house near a landmark such as St Christopher, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Thornhill is about 2 miles east of Southampton, in Southampton. Thornhill gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Across Southampton, we cover 40 places, Thornhill among them.
Jobs for regrouting in SO19, SO18 and SO30 works the same way as everywhere else we cover. We cover properties on Drove Road, Barry Road and Luton Road and the roads around them. Thornhill is on the A334, so it’s easy for us to get to with everything needed for regrouting. We also cover Harefield (1 mile north), Sholing (1 mile south-west), Bitterne (1 mile west), West End (1 mile north) and Chartwell Green (1 mile north). Further out, we also cover Shirley (4 miles west), Regents Park (4 miles west), Maybush (5 miles west), Portswood (3 miles north-west), Coxford (5 miles west) and Freemantle (4 miles west). Thornhill is among the bigger towns we cover in Southampton.
Near you in Thornhill
We work in homes and buildings around Westwood Woodland Park, Woodlands Community College and Grove Park Business and Enterprise College and the streets around them. The closest station to Thornhill is Sholing station, roughly 1.4 miles south-west. Nearby you will also find Moorgreen Hospital (1.4 miles north-east) and Bitterne Local History Society Heritage And Research Centre (1.1 miles west). Green spaces nearby include Netley Common.
Places near Thornhill
Other services in Thornhill
Your questions about regrouting in Thornhill
Do you work for landlords with property near Sholing station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Will you come out to Thornhill?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Will the sealant be renewed as well as the grout?
Normally we do both. Grout and sealant do different jobs, so we renew both and it’s all in the quote.
Do you guarantee regrouting?
There’s a 12-month guarantee on every job.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. Indoors, that usually means someone at home.
Is it messy?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Why it’s worth doing now in Thornhill
Cracked grout lets water behind the tiles. Left alone, that water can loosen tiles or damage the wall, which turns a regrout into a retile. Dealing with it now keeps it small. In a smaller place like Thornhill, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we’ll explain the quote if you ask.
Why choose Mr Mastic in Thornhill
- Fully insured
- Every job guaranteed for a year
- Anti-fungal silicone where joints get wet
- 4.9 on Google from 180+ five-star reviews
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes anything from a few hours to a full day, depending on the area. Parking around Thornhill is normally 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.
- First we agree what’s being done and flag any loose tiles.
- Grout is raked out without chipping the tiles.
- Dust is cleared from every joint.
- The new grout goes in, then the tile faces are cleaned.
- Internal corners and edges are resealed.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Where the joints are inside, avoid wetting them before we arrive
- Clear items away from the joints we are working on
Getting a quote
For regrouting in Thornhill, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before work begins.
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Landlord and commercial work in Thornhill
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.
