Greater London · England

Regrouting in Belsize Park, Greater London

Raking out old, cracked or stained grout and regrouting tiled walls and floors for homeowners, landlords and businesses in Belsize Park. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Grout in corners that has cracked
  • Shower grout that has worn away
  • Good tiles let down by tired grout

Need regrouting in Belsize Park?

About our regrouting in Belsize Park

Stained, crumbling or cracked grout can make a sound bathroom look tired. Regrouting replaces the grout and keeps the tiles you have, so there’s no stripping out and no new tiles to choose. If you have stained grout that cleaning won’t shift and good tiles let down by tired grout, we can put it right, on wet rooms, kitchen splashbacks and bathroom wall tiles alike.

London homes include a lot of flats, conversions and mansion blocks, so a bathroom is often directly above a neighbour’s ceiling. That makes worn sealant and cracked grout in Belsize Park more than a cosmetic job.

All our work comes with our one-year guarantee, wherever you are in Greater London.

Where
Belsize Park (NW3, NW5, NW1)
Wider area
Greater London
Guarantee
A year, on every job
Quotes
A clear quote up front
Telephone
0345 464 0079
Updated
26 October 2026
Mr Mastic applicator kneeling beside a white bath, sealing the joint where the bath meets beige wall tiles

Keeping the joints in good condition

So the new joints stay in good condition:

  • Check the corner silicone every few months
  • Clean with a soft brush, not anything metal
  • Clean grout with a mild bathroom cleaner
  • Get any tile that moves checked promptly

Clean the grout with a mild bathroom cleaner with a soft brush. Keep harsh bleach and acid limescale removers away from it, as they can break grout down.

If grout in the shower is washing out, act soon. Every shower pushes more water into the gaps and it can end up in the wall or the ceiling below.

Why act early in Belsize Park

New grout smeared over the old does not bond well. A thin skin on top tends to break off. Raking out to a consistent depth gives the new grout something to hold. In a London flat, a failed joint rarely stays your problem alone: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.

A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.

Why choose Mr Mastic in Belsize Park

  • Every job guaranteed for a year
  • Rated 4.9 stars on Google
  • Tidy, careful work
  • Over 20 years’ experience

Take a look at our cost guide or what customers say.

Signs you need regrouting in Belsize Park

Most grout is porous, so water, soap and grime soak into it. Given time, it discolours and begins to break down and showers that get daily use suffer most.

Keep an eye out for any of the following:

  • Grout that stays dark however much it’s cleaned
  • Good tiles let down by tired grout
  • Greasy, stained grout behind the hob
  • Cracked or crumbling grout lines

Managing a site like Fine Arts College? Then 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.

Comparing quotes

  • What preparation is included
  • Which colour the sealant will be
  • What happens if the job turns out different
  • Is VAT in the price?

Choosing a sealant specialist

DIY sealant or a professional job?

What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.

The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.

Questions from Belsize Park

I live in a flat in Belsize Park. Can a failed seal leak into the flat below?

Yes. In a flat, water from a failed bath or shower seal has only one way to go, and that is down. A proper reseal before the leak starts is the easy fix.

Do you work for landlords with property near South Hampstead station?

Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.

Which products do you use?

It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.

Do you reseal at the same time?

Yes, in most cases. Fresh grout next to old, mouldy silicone would look odd and wouldn’t keep water out.

Can you change the grout colour?

Yes. Because the old grout is raked out, the new colour goes all the way into the joint, not just the surface.

Will regrouting fix loose tiles?

Regrouting won’t fix loose tiles. We check the tiles first and tell you if any are loose or hollow so you know where you stand.

When can I use the shower again?

It varies with the products and the room. We’ll give you a time to follow at the end of the visit.

Is it worth trying it myself?

You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.

Landlords, agents and businesses in Belsize Park

Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.

We work for letting agents and landlords as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.

What affects the cost of regrouting

For a quick quote, just ask. The main things that affect it are:

  • How many rooms, windows or areas are involved
  • Access and height
  • Which sealant suits the joint
  • Any working-time requirements on site

Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.

What to tell us for a quote

Before you ask for a quote, have a think about:

  • The problem you’ve noticed
  • Whether it has been sealed before
  • Pictures of the joints, sent by email
  • How many joints, rooms or windows are involved

Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved.

Regrouting in Belsize Park: local notes

London has hard water, which leaves limescale on sealant, grout and taps. London has a lot of flats and conversions, and a failed shower or bath seal in one can show up on the ceiling below, so tired sealant is best dealt with early.

Letting a property close to South Hampstead station? Then stained grout drags a rental down, and regrouting between lets puts that right. If you live in an older home near Church of St Mary the Virgin, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.

Belsize Park is about 1 mile south-east of Hampstead, in Greater London. Wherever you are in the NW3 postcode area, we cover regrouting for homes and businesses. Belsize Park is one of 764 places in Greater London we cover.

Jobs for regrouting in NW3, NW5 and NW1 works the same way as everywhere else we cover. We cover properties on Eton Road, Lawn Road and Ornan Road and the roads around them. We also cover Haverstock (1 mile north), Primrose Hill (1 mile south), South Hampstead (1 mile west), Swiss Cottage (1 mile west) and Chalk Farm (1 mile east). Larger places within reach include London (4 miles south-east), Kensington (4 miles south-west), Shoreditch (4 miles east), Walthamstow (7 miles north-east), Hoxton (3 miles east) and Whitechapel (4 miles south-east).

Near you in Belsize Park

Locally, jobs take us to homes and businesses close to The Washington pub, Primrose Hill and St. Mary's Town and Country School and the streets around them. You’ll also find Cecil Sharp House (0.8 miles south-east) and St Paul's Church of England Primary School (under half a mile south). The nearest railway station is South Hampstead station, about 0.7 miles west of the centre. Well-known places in the area include Wellington Hospital (0.9 miles south-west) and O2 Centre (0.8 miles west). Not far away are Adelaide Nature Reserve and The Long Water.

Map of Belsize Park © OpenStreetMap contributors

How it works

Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself normally takes anything from a few hours to a full day, depending on the area, depending on how much there is to do. In a London area like Belsize Park, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.

  1. We start by checking the tiles for any that are loose or hollow.
  2. Old grout is raked out to a consistent depth without chipping the tiles.
  3. Dust and debris are vacuumed out of every joint.
  4. Fresh grout goes into the joints and the tile faces are wiped clean.
  5. The corners and edges get new silicone, because grout there would crack.

Preparing for the visit

  • Tell us about access, such as stairs, a lift or high-level joints
  • Move anything stored near the joints
  • Mention if the joints have been sealed before

Get a quote

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, call 0345 464 0079 or drop us an email.

Get a quick quote

Advice

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job