The Mastic Doctor team standing beside their branded vans outside an office building
Wokingham · England

Expansion Joint Sealing in Winnersh

Commercial sealant work in Winnersh for contractors, FMs and building owners: expansion and movement joint sealing in walls, decks and floors, with a fixed quote first.

  • Layers of sealant in a movement joint
  • Brittle, chalky sealant on external joints
  • Joints packed with grit and debris
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Expansion joint sealing near Winnersh

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

How we handle expansion joint sealing in Winnersh

If you need expansion joint sealing in Winnersh, start with photos and joint lengths. We’ll come and look where photos don’t show enough. To discuss the joints first, give us a call on 01277 525 020 or email drawings and photos. If you are dealing with joints packed with grit and debris and joints where the bead has lost adhesion, we can help. Whoever orders the work in Winnersh, the brief is normally the same: a clear scope, tidy work and joints that don’t fail again.

Small units near places like Winnersh are often converted farm buildings with new concrete floors. Joints in those slabs need a product suited to whatever runs over them, from pallet trucks to foot traffic.

We stand by our work: 12 months, guaranteed. That covers our preparation and application, and we come back if anything isn’t right.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Winnersh (RG41, RG10)
Wider area
Wokingham
Cover
12 months on every job
Quote
Quoted before any work starts
Call
01277 525 020
Updated
3 November 2026

Common questions from Winnersh clients

Is Winnersh off your patch?

Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Do you take on work at healthcare sites like Wokingham Hospital?

Yes, provided the work is planned with the site’s estates team. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Is colour matching possible?

In many cases, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We will confirm the colours available for the specified product.

What if there’s asbestos in the old mastic?

The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. If anything suspect turns up, we stop until it’s tested.

What causes movement joint sealant to fail?

The way it has failed normally tells us why: a split through the middle points to over-stretching, while peeling from one face points to preparation or primer. Broken edges are a third possibility.

Is it fine to apply new sealant on top of old?

No. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.

How do you choose the sealant?

Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

Joints that move: notes for Winnersh

Winnersh lies roughly 34 miles out from central London. The roads out of London are lined with trade parks and distribution sheds, and their floor joints take forklift and pallet-truck traffic all day. The South East is one of the drier parts of the UK. Outside joints in yards and car parks still have to be dry before sealing, and gritting in cold spells finds its way into open joints.

Sites like Wokingham Hospital, 2.1 miles to the south-east of Winnersh, carry ambulances, deliveries and visitors’ cars over their road and deck joints. For a school such as The Forest School, playground and building joints can be done in the holidays. For estates staff at a university like University of Reading - Whiteknights Campus, 2.8 miles to the west of Winnersh, building and paving joints are part of the planned maintenance list.

Winnersh is about 2 miles south of Woodley, in Wokingham. Businesses, contractors and managing agents in Winnersh can call on us for movement joints. Our Wokingham coverage takes in 42 places, large and small.

We take on movement joints across the RG41 and RG10 postcode area. If your site is on Reading Road, Westbrook Court and Bathurst Road or close by, send details and we will quote for movement joints. You will find Winnersh on or near the B3030. We also cover Sindlesham (1 mile south), Emmbrook (1 mile south-east), Woosehill (2 miles south-east), Woodley (2 miles north) and Wokingham (2 miles south-east) for movement joints. A short drive away, we cover Crowthorne (5 miles south-east), Shinfield (3 miles south-west), Arborfield Garrison (3 miles south), Spencers Wood (5 miles south-west), Twyford (3 miles north) and Charvil (3 miles north). Winnersh is one of the busier places in Wokingham, and we take on movement joints for its commercial and public buildings.

What’s near Winnersh

Around Winnersh, our work takes us to commercial buildings near The Poachers pub, Maiden Erlegh Local Nature Reserve and Winnersh Primary School and the streets around them. Winnersh has its own railway station: Winnersh station. Other landmarks nearby include Berkshire Library & Museum of Freemasonry (0.6 miles south-west) and Wokingham Hospital (2.1 miles south-east). For a walk, there’s Lavells Lake and South Lake.

Map of Winnersh © OpenStreetMap contributors

Site staff or a sealant specialist?

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.

What the job involves on each surface

Concrete and precast panel joints

Precast and concrete panel joints move daily. The sealant needs the right movement capability and a controlled depth.

Cladding panel joints

Metal and composite panels shift considerably as temperatures change. The joints need a low-modulus sealant with enough movement capability.

Honest limits

We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:

  • Leaks coming from the membrane rather than the joint seal
  • Broken or spalled joint edges, which need repairing before any sealant goes in
  • Mechanical expansion joint covers, cover plates or proprietary joint systems (a specialist supplier’s job)

If in doubt, ring 01277 525 020 or send photos by email and we’ll say what we think before you book.

Joints and surfaces we work on

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

Our process

In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed, then handed back before we move to the next. Work in places the size of Winnersh is planned as a single visit where we can. Clear photographs and measurements help us bring the right products.

  1. We assess the joints on site or from photographs, noting widths and how each has failed.
  2. A fixed quote names the sealant we propose and its movement class.
  3. Phasing is agreed so decks, floors or entrances can stay in use where needed.
  4. We strip the old sealant or filler and prepare each face until it’s sound and dry.
  5. Depth is controlled with backing, the faces are primed where the maker calls for it, then the bead is laid and tooled.
  6. We check each joint with you, confirm the cure time and sign off under our 12-month guarantee.

Preparing the site

  • For older buildings, check the asbestos register before work
  • Send any specification or drawings in advance
  • Warn occupants and staff about the work

Ask for a quote

A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or call the office on 01277 525 020 or email a schedule or drawings if you’d rather talk the job through.

Get a quick quote

Read more

Cost factors for movement joints

We price every job individually. The things that drive the figure:

  • Quantities, in metres or numbers
  • Site requirements such as inductions and permits
  • Working within restricted access windows
  • The product specified

Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.

What to include in your enquiry

It doesn’t need to be a full survey. These details are enough to start:

  • What the building is and how it’s used
  • Any dates the work must fit around
  • Where the site is, with the postcode
  • Asbestos survey details if the building is older

Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. The easiest way is to ring 01277 525 020 or email a schedule or drawings.

After the work

Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. Our advice:

  • Act on the first tear or lifting edge rather than waiting
  • Keep traffic off new joints until the cure time is up
  • Put movement joints on the planned maintenance inspection round
  • Keep scrapers and ploughs from dragging across joint sealant

Keep wheels, feet and water off new joints until the sealant has cured. How long that takes depends on the product, the temperature and the depth of the joint and we will tell you when each bay or area can reopen. Keeping the area coned off until then avoids tyre marks and damage.

Unsupported floor joint edges spall under forklift and pallet-truck wheels. Broken arrises jolt trucks, loads and drivers, and the damage spreads along the joint. Keeping the filler or sealant sound protects the floor.

Accreditations

Trusted. Accredited. Insured.