Buckinghamshire · England
Regrouting in Grendon Underwood, Buckinghamshire
Raking out old, cracked or stained grout and regrouting tiled walls and floors for homeowners, landlords and businesses in Grendon Underwood. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps where the shower grout has gone
- Grout that’s cracking and breaking up
- Grout that stays dark however much it’s cleaned
What happens on the day
Most of a good job is in the preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. In total, it usually takes a few hours, or longer for a fully tiled room. For a village or hamlet like Grendon Underwood, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First we agree what’s being done and flag any loose tiles.
- We remove the old grout carefully.
- The joints are cleaned out and vacuumed.
- The new grout goes in, then the tile faces are cleaned.
- Internal corners and edges are resealed.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Mention any sign-in or site rules at work premises
- Clear the area around the work
How to get a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or drop us an email.
Advice
Regrouting in Grendon Underwood, done properly
Stained, crumbling or cracked grout can make a sound bathroom look tired. With regrouting, the tiles stay and only the grout is renewed, so nothing is ripped out. Typical jobs include grout that’s cracking and breaking up and gaps where the shower grout has gone, across tiled floors, wet rooms and bathroom floors.
In a village or hamlet like Grendon Underwood, homes are often older cottages and farmhouses alongside a few newer houses. Older walls and timber floors can move a little, and cracked grout and split sealant are often the first signs.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or drop us an email.

- Location
- Grendon Underwood (HP18)
- Region
- Buckinghamshire
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What the job involves on each surface
Shower walls
The grout in a shower takes the brunt of the water. We rake it out and regrout and renew the silicone at the edges.
Wet rooms
New grout in a wet room keeps the surface sound. It can’t fix waterproofing below the tiles.
Leave it or put it right?
Regrouting keeps the tiles you already have. Retiling is a much bigger job: stripping, making good, new tiles and new grout, and often a few days without a shower. When the tiles are fine, it’s the sensible first step. Where a wall is exposed, as many are in small places like Grendon Underwood, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
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 make a difference, and we will explain the quote if you ask.
Why choose Mr Mastic in Grendon Underwood
- Quality sealants from Arbo and Everbuild
- Over 20 years’ experience
- We’re fully insured
- Anti-fungal sanitary silicone in wet areas
Take a look at what affects the cost and what customers say.
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Use gentle cleaners on grout
- Give the walls a quick rinse after use
- Check the corner silicone every few months
- Skip wire brushes and scourers
Give the new grout the time we tell you before using the shower, so it cures fully. From then on, a quick rinse after showering helps and keep the room ventilated.
Tiles can come away if failed grout is left. By then, new grout alone isn’t enough so early action pays.
Signs you need regrouting in Grendon Underwood
Soap scum and limescale build up on grout and stick to it. In time the grout under it darkens and breaks down, which is when replacing it makes sense.
Common reasons people contact us are:
- Old grout in a dated colour
- Grout that makes sound tiles look old
- Crumbling grout between the tiles
- Corners filled with grout instead of silicone
For an older house near a landmark such as Church of St Leonard, walls and floors in older homes can move, and sealant and grout show it first.
What to look for in a quote
- Who turns up on the day
- Are they insured?
- When the joint can take water or movement
- How long the guarantee is
Your questions about regrouting in Grendon Underwood
Do you cover smaller places like Grendon Underwood?
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.
Is Grendon Underwood in your area for regrouting?
Yes, Grendon Underwood is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
Do you guarantee regrouting?
You get our 12-month guarantee on every job. We are also fully insured.
Can tenants book the work?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
How much does regrouting cost in Grendon Underwood?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Do you work for landlords and businesses?
Yes, often. Several properties can be quoted together, and between tenancies is a good time for the work.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
Where are you based?
Mr Mastic is based in Crawley. We cover Grendon Underwood and the rest of Buckinghamshire, along with the rest of our area.
Grendon Underwood homes and their sealant
Most of the South East has hard water, so limescale builds up on sealant, grout and fittings.
Schools such as Grendon Underwood Combined School are buildings too, and washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes.
Grendon Underwood is about 6 miles east of Bicester, in Buckinghamshire. Jobs in Grendon Underwood get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Grendon Underwood is one of 263 places in Buckinghamshire we cover for regrouting. You can also see our page for Oxford, about 13 miles away.
Our applicators cover all of the HP18 postcode area for regrouting and the streets around it. If you need regrouting at a property on Main Street, The Firs and Darley's Close or anywhere close by, we can help. Nearby, we also carry out regrouting in Edgcott (1 mile north), Ludgershall (2 miles south-west), Piddington (3 miles south-west), Blackthorn (4 miles west) and Brill (5 miles south-west). Larger places within reach include Aylesbury (9 miles south-east), Buckingham (8 miles north), Elmhurst (9 miles south-east), Southcourt (10 miles south-east), Princes Risborough (13 miles south-east) and Haydon Hill (8 miles south-east).
Landmarks near Grendon Underwood
Green spaces nearby include Upper Ray Meadows.
Nearby places to Grendon Underwood
What else we do in Grendon Underwood
What sealant work can’t fix
We’ll always be straight with you, so here’s what sealant cannot fix:
- Cracked or broken tiles
- A leaking shower valve or waste
- Waterproofing that has failed below the tiling
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly before you book.
What we seal
- Wet rooms
- Bathroom floors
- Kitchen splashbacks
- Bathroom wall tiles
- Shower walls
- Tiled floors
Landlords, agents and businesses in Grendon Underwood
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.
Letting agents and landlords in Grendon Underwood can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
