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

Expansion Joint Sealing in Thatcham

Expansion and movement joint sealing in walls, decks and floors across Thatcham, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Car park joints leaking onto vehicles below
  • Rain penetration at brick or block movement joints
  • Sealant peeling off one face of the joint
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Expansion joint sealing near Thatcham

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

How we handle expansion joint sealing in Thatcham

We have been sealing expansion and movement joints for over 20 years. CHAS accredited, Constructionline member, CSCS-carded applicators and five million pounds of public liability insurance. Each job is backed by a 12-month guarantee on the workmanship. If you are dealing with previous reseals laid over old sealant and water dripping through deck or ramp joints, we can help. A specialist sealant contractor works differently from a general builder: in Thatcham, that means joint design, primers and backing rod as standard.

In Thatcham, as in most towns, brickwork and panel movement joints on public and commercial buildings age quietly. Once the sealant hardens or splits, water gets into the wall and the joint no longer works.

The 12-month guarantee covers our workmanship: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

Place
Thatcham (RG19, RG18)
Region
West Berkshire
Cover
12 months on every job
Quote
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

What the job involves on each surface

Podium joints

Podium decks are exposed and often trafficked. A sealant suited to both traffic and exposure is used.

Internal floor movement joints

Wheeled traffic chips floor joint edges that aren’t supported. We match the product to the traffic and the movement.

FAQs: Thatcham

Do you take on work at healthcare sites like West Berkshire Community 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.

Will you take on work at estates like Pipers Lane Industrial Estate, close to Thatcham?

Yes. We cover Thatcham and the area around it, including industrial estates, business parks and retail parks such as Pipers Lane Industrial Estate. Photos and a short description are enough for a first look.

What will the job cost?

Each job is quoted on its own details. To get one, give us a call on 01277 525 020 or use the quote form with a description of the work.

What’s the difference between an expansion joint and a movement joint?

The terms overlap a great deal. Both let materials grow and shrink with temperature, moisture and load.

Can staff carry on working while you’re here?

Typically, yes. Phased work can be planned so areas stay in use, with each area protected and signed.

Can one quote cover more than one building?

Yes. Several buildings can share a single quote, and you deal with one contact throughout.

Can you follow the specification on our project?

Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.

General trades versus a specialist

Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.

Traffic, movement and joints around Thatcham

Central London is about 51 miles from Thatcham. The South East has large numbers of industrial estates and warehouses along the motorway corridors; their floors carry heavy traffic every shift. Less than 3 miles from Thatcham there are at least three named estates and business parks. Floors, loading bays and yards on sites like these are where floor and movement joints work hardest.

Warehouse floors on estates like Pipers Lane Industrial Estate, 0.9 miles south-east of Thatcham, carry pallet trucks and forklifts over every saw-cut joint. In a school such as Spurcroft Primary School, movement joints in brick, block and hall floors tend to be forgotten until they leak. Hospitals like West Berkshire Community Hospital (to the west of Thatcham) have multi-storey or surface car parks whose joints carry vehicles round the clock.

Thatcham is about 12 miles north-west of Basingstoke, in West Berkshire. Across the RG19 postcode area, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Thatcham is one of 140 places in West Berkshire on our list for movement joints. Reading is covered too, around 13 miles from Thatcham.

Postcode districts covered here: RG19 and RG18 for movement joints. For a building on High Street, Station Road and Flagstaff Square or nearby, we can quote for movement joints. Main routes into Thatcham include the A4, useful when we plan access and materials. Sites close to Thatcham are covered too, including Benham Hill (1 mile west), Ashmore Green (2 miles north-west), Cold Ash (2 miles north), Upper Bucklebury (2 miles north-east) and Stone Copse (2 miles north-west). Further afield, our area takes in Newbury (3 miles west), Burghfield Common (8 miles east), Speenhamland (3 miles west), Hungerford (11 miles west), Fords Farm (10 miles east) and Little Heath (10 miles north-east). Among the larger centres in West Berkshire is Thatcham, and its commercial and public buildings are all within our area.

Near you in Thatcham

Locally, jobs take us to sites close to Kennet School and The Old Chequers Public House, among other places. The closest station to Thatcham is Thatcham station, about 0.9 miles south-east. Nearby you will also find Old Chapel Textile Centre (2.2 miles south-west) and West Berkshire Community Hospital (1.5 miles west). The countryside around Thatcham includes Nature Discovery Centre.

Map of Thatcham © OpenStreetMap contributors

Building owners, agents and FMs in Thatcham

Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Thatcham can form part of a wider programme.

When something else is needed

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • Damaged metal nosings or cover plates over a joint
  • Leaks coming from the membrane rather than the joint seal
  • Cracking or settlement that calls for an engineer’s assessment

Not sure which it is? You can speak to us on 01277 525 020 or send photos by email and we will tell you honestly.

What we seal

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

On site: what to expect

Diagnose, treat, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. In a town such as Thatcham, most jobs are single buildings. We start with your photographs, drawings or a site visit, then send a fixed quote.

  1. We assess the joints on site or from photos, noting widths and how each has failed.
  2. A fixed quote names the sealant we propose and its movement class.
  3. Where areas have to stay open, we agree a phased sequence before starting.
  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. Finished joints are inspected, the cure time confirmed and the 12-month guarantee applies.

What we need from you

  • Let us know about inductions and permits
  • Clear stock, furniture or equipment away from the joints
  • Warn occupants and staff about the work

Get a fixed quote

Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to phone 01277 525 020 or send details through our quote form.

Get a quick quote

Advice

Keeping the joints sound

Problems stay small when the joints are checked regularly. In particular:

  • Inspect exposed joints once the cold weather has passed
  • Sweep decks, ramps and floors so grit doesn’t collect in the joints
  • Put movement joints on the planned maintenance inspection round
  • Plan racking layouts so feet don’t land on a joint

Floor joints on main traffic routes need watching more closely than the rest. Keep racking feet and heavy point loads off joint lines.

On a multi-storey car park, a failed joint typically shows up as a leak onto the deck underneath. Salty water dripping through stains soffits and lands on parked vehicles and it can affect the structure over time. Resealing early limits the damage.

Accreditations

Trusted. Accredited. Insured.