Windsor and Maidenhead · England

Old Windsor Floor Joint Sealing

Floor joint sealing in Old Windsor from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Caulk that has cracked where the floor moves
  • Grout used at the floor edge instead of sealant
  • Chipped and open joints in warehouse floors

Floor joint sealing near Old Windsor

What sealant work can’t fix

New sealant cannot fix everything, and we will tell you before work begins. Sealant won’t put right:

  • Bouncy or failing floorboards
  • Large cracks that need a surveyor
  • Loose, hollow or cracked tiles, which need a tiler

If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer before booking.

Joints and surfaces we work on

  • Skirting boards
  • Commercial floors
  • Thresholds
  • Tiled floors
  • Concrete floor joints
  • Wet room & bathroom floors

How we handle floor joint sealing in Old Windsor

Where skirting is painted, we can use a flexible sealant that takes paint. For bathrooms and kitchens, silicone is normally the better choice, which isn’t made to be painted. Typical jobs include open joints that fill with dirt and open gaps along the bottom of skirting boards, on thresholds, wet room & bathroom floors and concrete floor joints.

For a new home in or near Old Windsor, it’s worth checking the sealant early. Gaps at skirtings, shower seals pulling away and missing mastic around frames are common snags.

You get a 12-month guarantee, the same in Old Windsor as everywhere else we work.

Mr Mastic applicators lined up beside the company vans, one holding a sealant gun
Where
Old Windsor (SL4)
Region
Windsor and Maidenhead
Cover
A year, on every job
Price
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026

Your questions about floor joint sealing in Old Windsor

Is Old Windsor in your area for floor joint sealing?

Yes. We work across London and the South East, and Old Windsor is part of that. You can phone 0345 464 0079 or drop us an email and let us know what needs doing.

Do you cover smaller places like Old Windsor?

Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Can you add a movement joint to a tiled floor?

Often, yes, at the edges and along suitable lines. The grout is raked out and replaced with a flexible sealant in a colour to suit, giving the floor room to move.

Do you use a paintable sealant?

Where you plan to paint, we do. Silicone doesn’t take paint so mention it when you get a quote.

Can you reseal concrete floor joints in an industrial unit?

Yes. Concrete floor joints in warehouses and units are part of our work. The product is chosen for the traffic the floor takes.

Will the old sealant be removed?

Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.

Do you hold any approvals?

Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.

Do you have insurance?

Yes. Full insurance covers our work, and we can confirm the details when we quote.

Aftercare tips

How long the joints last depends on use and care. Here’s what we suggest:

  • Check the sealant is paintable before decorating
  • Have a cracking tiled floor checked before tiles break
  • Don’t slide heavy items over sealed joints
  • Vacuum floor joints regularly to stop grit building up

Avoid flooding the floor when you clean. Less water at the edges helps the joints last.

Once concrete joint edges start to break, wheels make it worse. Early resealing helps keep the joint intact and the surface smoother.

For landlords and businesses

Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.

We regularly work with letting and managing agents. Tell us the address, the job and how access works.

What we do, step by step

On the day, we look over the joints with you first, so you know exactly what we’re doing. Surfaces next to the work are protected before any work starts. Most jobs take a few hours, depending on the length of joint. A visit to Old Windsor is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.

  1. First, the floor type, the gap and the traffic are checked.
  2. Any old caulk, grout or sealant is raked or cut out.
  3. The joint is vacuumed clean and backing fitted where needed.
  4. The chosen sealant goes in, coloured to suit the floor.
  5. The joint is tooled neatly and the cure time explained.

Before we arrive

  • Tell us if parking is tricky
  • Clear items away from the joints we are working on
  • Where the joints are inside, avoid wetting them before we arrive

How to get a quote

Want a quote for floor joint sealing? Please ring 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.

Ask for a quote

Read more

What happens if it’s left?

Not every floor joint takes the same sealant: skirting and tiled floors need flexibility, wet areas need water resistance and concrete needs a product suited to wheels. Using the wrong one is why many floor joints fail. Homes in smaller places like Old Windsor can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.

Leaving a failed joint normally makes the job bigger, not smaller. If you are not sure whether it needs doing, phone 0345 464 0079 or send us an email and we will give you an honest view and a quote.

What you get with us

  • White, clear, grey or another colour, product permitting
  • Over 20 years’ experience
  • Colour agreed with you before work begins
  • 4.9 on Google from 180+ five-star reviews

See how sealant jobs are priced and customer reviews.

When to call us in Old Windsor

Water and dirt collect in open floor joints. In wet areas, water runs into the gap at every clean.

Keep an eye out for these signs:

  • Gaps between floors and kitchen plinths
  • Gaps at thresholds between rooms
  • Tiled floors with no room to move
  • Rigid edge joints in tiled floors

If you let a flat or house near Sunnymeads station, open skirting and floor joints collect dirt and water, so seal them while the property is empty.

Before you book anyone

  • Which sealant they’ll use, and why
  • The length of the guarantee
  • Is the old sealant removed completely?
  • What preparation is included

How to choose a mastic man

DIY versus a professional finish

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Floor joint sealing in Old Windsor: local notes

Across Windsor and Maidenhead, floors range from older suspended timber floors to concrete slabs in newer homes and commercial units, and each moves in its own way. That’s why the skirting and threshold joints need a flexible seal.

For buildings such as St Luke, floor and skirting joints in halls and kitchens wear like any others. Schools such as King's Court First School are buildings too, and floor and threshold joints in busy corridors wear quickly and are best resealed early.

Old Windsor is about 2 miles north-west of Egham, in Windsor and Maidenhead. For floor joint sealing in and around Old Windsor, please phone 0345 464 0079 or email us for a quick quote. We cover Windsor and Maidenhead from our Crawley base, Old Windsor included. Old Windsor is one of 57 places in Windsor and Maidenhead where we work for floor joint sealing. Our Reading page covers work nearby (17 miles or so).

Here we cover the SL4 postcode area for floor joint sealing. Floor joint sealing is available to properties on Church Road, Parker Gardens and Gregory Drive. Old Windsor sits on or near the B3021, which makes travel easy. Neighbouring places we cover for floor joint sealing include Wraysbury (1 mile east), Sunnymeads (1 mile north-east), Bishopsgate (1 mile south), Datchet (2 miles north) and Englefield Green (2 miles south). We also work in nearby towns such as Maidenhead (8 miles north-west), Windsor (3 miles north-west), Boyn Hill (8 miles north-west), North Ascot (6 miles south-west), Cookham (9 miles north-west) and Furze Platt (9 miles north-west).

Around Old Windsor

Locally, jobs take us to homes and businesses close to St John's Beaumont School, Windsor Great Park and The Fox And Castle Public House and the streets around them. The nearest railway station is Sunnymeads station, roughly 1.3 miles north-east of the centre. Other landmarks nearby include Windsor Castle (2.1 miles north-west) and Berkshire Yeomanry Museum (1.6 miles north-west). Not far away are St Ann's Hill and Virginia Water Lake.

Map of Old Windsor © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job