The Mastic Doctor team standing beside their branded vans outside an office building
Windsor and Maidenhead · England

Industrial and floor joint sealing in Dedworth, Windsor and Maidenhead

Floor joint sealing for Dedworth, from a contractor working since 2005. Fully insured and CHAS accredited.

  • Trucks and loads jolting over damaged joints
  • Cracked and crumbling joint fill
  • Open saw cuts full of debris
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
£5m PL insurance

Floor joint sealing in Dedworth

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Questions we’re asked in Dedworth

Is Dedworth too far out for you?

No. Small places get the same service as large ones. Our area covers London and the South East counties. Good photographs up front let us bring everything on the first visit.

Is hospital work, at somewhere like King Edward VII Hospital, something you do?

Yes, provided the work is planned with the site’s estates team. Work is phased so departments keep running, under the site’s own rules.

Are you fully insured?

Yes. Our insurance certificate can be sent alongside the quote.

Does weather matter for sealant work?

It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Internal work is far less affected.

How long does a typical visit take?

That varies with the scale of the job, but the work normally takes a day for smaller units, with bigger warehouse floors programmed over several visits. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

Is it normal for joint filler to separate?

On newer slabs, the concrete keeps shrinking after the joints are filled and a stiff filler can separate down one side. It is typically dealt with by topping up.

Is colour matching possible?

Often, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We confirm what’s available for the specified product when we quote.

About our floor joint sealing in Dedworth

Not every floor joint we treat is in a warehouse. Shops, showrooms and trade counters have joints that take trolleys, foot traffic and scrubber-driers, where a gappy, dirty joint looks untidy and snags castors. A flush, well-finished joint tidies the whole floor. Most enquiries involve loading bay joints breaking down and drivers complaining about joints on a route, on construction joints, retail and showroom floors and forklift and pallet-truck routes. Most enquiries from Dedworth start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.

In a smaller place such as Dedworth, floor and movement joints are often in agricultural and rural business units, schools and the odd small industrial yard. Concrete floors and yards in these buildings move and crack like any others.

Every job is signed off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.

Where
Dedworth (SL4)
Region
Windsor and Maidenhead
Guarantee
12 months on every job
Price
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Floors, slabs and movement joints in Dedworth

Dedworth lies roughly 24 miles out from central London. The South East has large numbers of industrial estates and warehouses along the motorway corridors; their floors carry heavy traffic every shift. The South East is one of the drier parts of the UK. External slab and deck joints still need a dry, clean joint to seal, while winter salting gets into any joint left open.

On a site such as Bray Business Centre (2.6 miles north-west of Dedworth), the movement joints are in car park slabs, paving and building elevations. For a school such as Dedworth Green First School, playground and building joints can be done in the holidays.

Dedworth is about 1 mile west of Windsor, in Windsor and Maidenhead. We send applicators to Dedworth for floor joints. Our Windsor and Maidenhead coverage takes in 60 places, from busy centres to rural villages. For work in that direction, see our Reading page (14 miles or so).

We cover the SL4 postcode districts. We cover commercial and managed buildings on Ash Lane, Wolf Lane and Roses Lane. Just outside Dedworth, we also work in Windsor (1 mile east), Oakley Green (1 mile west), Boveney (1 mile north), Clewer (1 mile north-east) and Water Oakley (1 mile north-west). A short drive away, we cover Maidenhead (5 miles north-west), Boyn Hill (5 miles north-west), Cookham (7 miles north-west), Furze Platt (6 miles north-west), Broomhall (6 miles south) and South Ascot (5 miles south). Dedworth ranks among the main centres of Windsor and Maidenhead, with offices, shops, schools and other public and commercial buildings.

Landmarks near Dedworth

Recent enquiries here include premises near Windsor Girls' School, Windsor Girls' School and The Greene Oak pub, among other places. For rail, the closest station is Windsor & Eton Central station, about 1.7 miles east of the centre. Other landmarks nearby include Windsor Castle (1.9 miles east) and King Edward VII Hospital (1.5 miles east). The countryside around Dedworth includes Bray Pit and Taplow Lake.

Map of Dedworth © OpenStreetMap contributors

What happens if it’s left?

Tape, or whatever sealant is in the stores cupboard, may look like a fix for a while. Neither is made to carry wheels and traffic soon pulls it out. A product chosen for the traffic and movement does the job once. Small buildings around Dedworth suffer from failed joints as much as large ones. Early resealing avoids the damage that follows a leak.

The product called for affects the cost, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.

What you get with us

  • Fixed quotes based on photos, drawings or a visit
  • Fully insured
  • Over 20 years of commercial sealing
  • Constructionline member

See what affects the cost or our accreditations.

What affects the price in Dedworth

There’s no standard rate for sealant work, because every site is different. What we look at:

  • Location, for remote and island sites
  • How much there is to seal
  • Which sealant the job calls for
  • Backing rod, priming and other preparation

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.

Before you send an enquiry

However big the job, these details speed things up:

  • Asbestos survey details if the building is older
  • What the building is and how it’s used
  • Your programme or deadline
  • The postcode of the building

Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we will arrange one.

Doing it in-house

Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Redoing a failed joint normally costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

When to call us in Dedworth

Joints near dock doors see colder air, rain blown in and water off vehicles on top of the heaviest turning movements. They are often the first on a site to break down.

Site and facilities staff are often the first to spot these:

  • Trucks and loads jolting over damaged joints
  • Loading bay joints breaking down
  • Open saw cuts full of debris
  • Chipped and spalling edges along forklift routes

For estates staff at a university like Imperial College Silwood Park Campus, 4.6 miles to the south of Dedworth, building and paving joints are part of the planned maintenance list.

Comparing quotes

  • Are they CHAS accredited or on Constructionline?
  • How they’ll work around occupants
  • How joint depth will be controlled
  • Their public liability cover

Our contractor checklist

Diagnose, treat, sign off

Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work normally takes a day for smaller units, with bigger warehouse floors programmed over several visits, and our waste is bagged and taken away as we go. For a site in Dedworth, we plan so the whole job is done in one go where possible. Clear photos and measurements help us bring the right products.

  1. We look at joint widths, edge condition and the traffic on each route.
  2. The quote fixes the price, names the filler or sealant and shows how the floor will be zoned.
  3. Old filler, debris and contamination are cut or routed out back to clean concrete.
  4. We vacuum each run and prime it if the chosen product requires a primer.
  5. Filler or sealant goes in to the right depth and is finished flush with the slab.
  6. The area is handed back once it has cured enough to take traffic.

Before we start on site

  • Point out any areas we must not close
  • Move anything stored against the joints
  • Have the specification and drawings to hand

Quotes

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.

Get a price

Advice

What the job involves on each surface

Construction joints

Day joints sit where one section of slab was cast against another. They often see more movement than sawn joints and that shapes the choice of filler or sealant.

Retail and showroom floors

We plan shop-floor work so trading can continue. Tell us your site hours and access windows and we will plan around them.

Accreditations

Trusted. Accredited. Insured.