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

Expansion and movement joint sealing in Ditton, Windsor and Maidenhead

Sealant work in Ditton for main contractors, managing agents and facilities managers: expansion and movement joint sealing in walls, decks and floors, with a fixed quote first.

  • Arrises breaking up along floor joints
  • Movement joints with split or torn sealant
  • Water getting into the wall through a failed joint
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Expansion joint sealing across Ditton

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Expansion joint sealing in Ditton, done properly

Mastic Doctor has sealed movement joints since 2005, for main contractors, FMs, managing agents and building owners. Our applicators are CSCS-carded, we’re CHAS accredited and a Constructionline member, and we carry five million pounds of public liability insurance. Workmanship is backed by our 12-month guarantee. We work on brickwork movement joints, precast concrete panel joints and blockwork control joints, and what we are called in for most is sealant pulling off the joint face and layers of sealant in a movement joint. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Ditton, that means joint design, primers and backing rod as standard.

In and around smaller places like Ditton, the concrete floors we see are often in converted farm buildings, small workshops and storage units. Whether it’s a farm store turned workshop or a storage unit, the joints need a product that suits the traffic.

We stand behind the joints we seal with a 12-month guarantee. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Ditton (SL3)
Region
Windsor and Maidenhead
Guarantee
12 months on our workmanship
Quotes
A fixed quote before we start
Telephone
01277 525 020
Last updated
3 November 2026

When to call us in Ditton

Three-sided adhesion is a common cause of early failure. Bonded on three faces, it can’t stretch evenly when the joint opens, which is why depth control matters.

Common reasons buildings call us in:

  • Brittle, chalky sealant on external joints
  • Water dripping through deck or ramp joints
  • Sealant peeling off one face of the joint
  • Chipped joint edges on forklift routes

A healthcare site such as Upton Hospital (1.6 miles north-west of Ditton) depends on car parks, ramps and service yards whose joints take traffic all day.

What to look for in a quote

  • Whether old or failed sealant will be cut out, not overlaid
  • What site paperwork they can supply
  • Whether primer will be used where the manufacturer specifies it
  • How they’ll work around occupants

Our contractor checklist

Common questions from Ditton clients

Would you work within a site like Upton Hospital?

Yes, healthcare and care buildings are part of our work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Is Ditton too far out for you?

Not at all. Ditton is within our area. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.

What happens if old sealant might contain asbestos?

Asbestos is possible in some older mastics, particularly in buildings from before 2000. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.

Why has the sealant in our expansion joints split?

Most often the movement is too much for the product or the joint width. That’s why we check width, depth and movement class before quoting, rather than replacing like for like.

How do I request a quote?

You can use the quote form on this site; alternatively, call the office on 01277 525 020 or email the details over. Include photographs or drawings if you have them.

Which sealant will you use?

If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

Do you have public liability insurance?

Yes. We are fully insured, and the certificate can go with your quote.

What the job involves on each surface

Joints between different materials

Different materials meeting at a joint rarely move in step. The product must bond to both substrates and cope with the movement.

Cladding panel joints

Cladding panels move more than masonry as they heat and cool. A sealant with the right movement class is chosen in a colour confirmed for that product.

Our process

Working in a building that stays open takes some planning. The work area is signed and kept contained, with routes through the building left open and move on in phases so staff and visitors can carry on around us. For work around Ditton, we aim to finish in one visit, so photos and measurements up front really help. Then the right materials arrive with us.

  1. First, the joints are inspected for width, movement and the type of failure.
  2. A fixed quote follows, naming the sealant and its movement class.
  3. Old sealant and filler are cut out and the joint faces cleaned back to sound material, and we tell you if any edges need repairing first.
  4. We control the depth with backing rod or, in shallow joints, bond-breaker tape.
  5. Where the maker calls for primer, it’s applied first, then the bead goes in and is tooled to a concave finish.
  6. Each joint is inspected and handed over with our 12-month guarantee.

What we need from you

  • Tell us your opening times and when work is allowed
  • Warn occupants and staff about the work
  • Clear stock, furniture or equipment away from the joints

Getting a fixed quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. For smaller jobs, photographs and a description will do.

Get a quick quote

Related advice

Expansion joint sealing around Ditton: what changes locally

Ditton is about 20 miles from central London. Warehousing clusters around the motorways that ring and radiate from London. Less than 3 miles from Ditton there are at least three named estates and business parks. Their warehouses, yards and car parks are exactly where joints take the most punishment.

At a retail site such as Slough Retail Park, 2.8 miles to the north-west of Ditton, trolleys, cages and cars run over floor and slab joints all day. Another example is Deseronto Trading Estate, which lies north of Ditton, where floors and yards would be done in stages around the occupiers.

Ditton is about 2 miles south-east of Slough, in Windsor and Maidenhead. If you’re looking for expansion joint sealing in Ditton, we can help. 60 places across Windsor and Maidenhead fall within our area, including Ditton. Reading is covered too, some 18 miles away.

If you need expansion joint sealing in SL3, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on Thorn Road, Ditton Road and London Road or close by, we can quote for movement joints. Close to Ditton, our area also takes in Datchet (1 mile south-west), Myrke (1 mile north-west), Brands Hill (1 mile south-east), Sunnymeads (2 miles south) and Colnbrook (2 miles east). A short drive away, we cover Maidenhead (7 miles west), Windsor (3 miles west), Boyn Hill (8 miles west), Cookham (8 miles north-west), Furze Platt (8 miles north-west) and Dedworth (4 miles west).

What’s near Ditton

We work on buildings around Upton Court Grammar School, Ditton Park Academy and Ditton Park. The closest station to Ditton is Datchet station, about 0.8 miles south-west. Nearby you will also find Museum of Eton Life (1.9 miles west) and Upton Hospital (1.5 miles north-west). For a walk, there’s Stoke Common and Staines Reservoirs.

Map of Ditton © OpenStreetMap contributors

What sealant work can’t fix

We check first that sealant really is the fix. It won’t put right:

  • Mechanical expansion joint covers, cover plates or proprietary joint systems (a specialist supplier’s job)
  • A joint that has to be widened or re-detailed before it can work
  • Structural movement beyond what the joints were designed for (that needs a structural engineer)

If in doubt, ring 01277 525 020 or send photos by email and we will say what we think.

Surfaces we seal

  • Blockwork control joints
  • Precast concrete panel joints
  • Brickwork movement joints
  • Car park decks and ramps
  • Cladding panel joints
  • Podiums and floor movement joints

Maintenance after handover

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. Our advice:

  • Put movement joints on the planned maintenance inspection round
  • Reopen bays and walkways only after the stated cure time
  • Raise snow-clearing blades over deck joints where possible
  • Record the sealant used and the date in the O&M file

In warehouses, forklift and pallet-truck routes take the most wear. Keep racking feet and heavy point loads off joint lines.

When one joint fails, others of the same age are rarely far behind. It pays to check every joint, not just the obvious one. We will tell you which movement joints need doing now and which can wait.

Work for main contractors and building owners

If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

Whether you are a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

Accreditations

Trusted. Accredited. Insured.