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

Expansion and movement joint sealing in Catisfield, Hampshire

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

  • Joints packed with grit and debris
  • Water getting into the wall through a failed joint
  • Torn sealant in brick or block movement joints
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS accredited
£5m PL insurance

Expansion joint sealing across Catisfield

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Expansion joint sealing in Catisfield

Brickwork and blockwork walls have vertical movement joints at intervals, and they’re easy to miss until the sealant fails. Once the seal fails, rain reaches the cavity and the joint can no longer close. The old seal comes out, backing goes in and a sealant with the right movement class is applied with primer where the maker calls for it. We work on precast concrete panel joints, brickwork movement joints and car park decks and ramps, and what we’re called in for most is hardened, cracked sealant on exposed facades and water getting into the wall through a failed joint. Searching for sealant specialists in Catisfield? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.

Small units near places like Catisfield are often converted farm buildings with new concrete floors. Saw-cut and construction joints in those floors need the right filler or sealant for the forklifts and trolleys that use them.

The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Catisfield (PO15, PO14)
Region
Hampshire
Guarantee
A 12-month guarantee
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026

Common questions from Catisfield clients

Do you take on work at healthcare sites like Fareham Community Hospital?

Yes, hospitals are one of the sectors we cover. Work is phased so departments keep running, under the site’s own rules.

Is Catisfield too far out for you?

No. Small places get the same service as large ones. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.

Can you seal joints in cold or wet weather?

Weather matters for any external joint. Indoor joints can usually carry on regardless.

What if there’s asbestos in the old mastic?

The duty to manage asbestos sits with the building’s dutyholder, so we’ll ask for the register before work on an older building. Work pauses if suspect material is found, until it has been tested.

What causes movement joint sealant to fail?

It depends on how the sealant has let go: 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.

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

The general name is movement joint, and expansion joint is one common type. In everyday use the two names are often swapped, and the sealing method is much the same.

Can you fit around our working hours?

Mention the site’s hours and access windows in your enquiry, and we will schedule the work to suit. You can reach the office between 8am and 5pm, Monday to Friday.

Where floor joints take the most wear near Catisfield

Catisfield sits close to the coast, within about 2 miles. Near the sea, external slabs, ramps and decks see salt air and driven rain as well as their usual loads, which is why split joints are worth sealing before the edges deteriorate. Catisfield has at least three named business or industrial parks inside a 3-mile radius. That puts plenty of warehouse floors, service yards and car parks close by, all with joints under traffic.

Retail centres such as Collingwood Retail Park, 1.9 miles to the south-east of Catisfield, have floors, service yards and car parks with joints under constant traffic. In a school such as Ranvilles Infant School, movement joints in brick, block and hall floors tend to be forgotten until they leak. For buildings at a park such as Blackbrook Business Park, 0.9 miles east of Catisfield, brick and panel movement joints are easy to forget until one leaks.

Catisfield is about 1 mile west of Fareham, in Hampshire. Businesses, contractors and managing agents in Catisfield can call on us for movement joints, as part of our coverage of Hampshire. 723 places across Hampshire fall within our area, including Catisfield. Sites around Portsmouth have their own page, roughly 7 miles from Catisfield.

Anyone looking for expansion joint sealing in PO15 and PO14 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. For a building on Mill Lane, Bradly Road and Harcourt Road or nearby, send details and we’ll quote for movement joints. If your building is just outside Catisfield, we cover Heathfield (1 mile east), Titchfield (1 mile west), Titchfield Park (1 mile north-west), Funtley (2 miles north-east) and Little Posbrook (2 miles south-west). Nearby towns on our patch include Winchester (15 miles north), Gosport (4 miles south-east), Havant (10 miles east), Eastleigh (10 miles north-west), Horndean (10 miles north-east) and Totton (13 miles west).

Near you in Catisfield

Locally, jobs take us to sites close to Fishermans Arms and The Henry Cort Community College and the streets around them. The closest station to Catisfield is Fareham station, roughly 1.3 miles east. Nearby you’ll also find Fareham Shopping Centre (1.9 miles east) and Knowle Hospital (2.2 miles north). Open spaces near Catisfield include Holly Hill Woodland Park and Portsdown Hill.

Map of Catisfield © OpenStreetMap contributors

Leave it or put it right?

Doing joint resealing alongside other planned works can save on access. Leaking joints need sealing now. Urgent joints now, the rest later, is often the sensible plan. Over time, UV, weather and movement wear any sealant out. Replacing it before it fails keeps water out.

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.

Why appoint us

  • Work carried out by CSCS-carded applicators
  • Fixed quotes based on photos, drawings or a visit
  • A range of standard colours, depending on the product
  • Specification-led, product-correct work

Read how commercial sealant jobs are priced and our accreditations and insurance.

Different surfaces, different methods

Car park decks and ramps

Deck and ramp joints take tyre loads, grit and de-icing salts. A trafficable sealant suited to the movement goes in with bays done in phases so the car park keeps running.

Internal floor movement joints

Wheeled traffic chips floor joint edges that aren’t supported. The right filler or sealant for the traffic and movement protects them, and tell you if edges need repairing first.

When to bring in a specialist

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.

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

From enquiry to sign-off

We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Work in places the size of Catisfield is planned as a single visit where we can. Clear photographs and measurements help us bring the right products.

  1. The first job is to check each joint: how wide it is, how it moves and why the old seal let go.
  2. A fixed quote follows, naming the sealant and its movement class.
  3. The failed seal is removed and both faces are cleaned until sound and dry.
  4. Closed-cell backing rod is set to depth, or bond-breaker tape in shallow joints.
  5. Primer goes on where the manufacturer specifies it, followed by the sealant, which is then tooled off.
  6. Finished joints are checked and backed by our 12-month guarantee.

Getting the site ready

  • Have the specification and drawings to hand
  • Tell us your opening times and when work is allowed
  • Send asbestos survey details if the building is pre-2000

Request a quote

Need a figure for a tender or a budget? We’ll quote against your scope and drawings you can plan around. If you have questions first, call the office on 01277 525 020 or send details through our quote form.

Get a quick quote

Read more

Owners, agents and contractors

Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.

Building owners and managing agents use us on everything from one building to a spread of sites around Catisfield. One quote can cover more than one site, which keeps the paperwork simple.

Keeping the joints sound

Your facilities or cleaning team can help the joints last. Pass these on to them:

  • Keep product details with the building records for the next reseal
  • Raise snow-clearing blades over deck joints where possible
  • Keep racking legs and heavy point loads off floor joints
  • Inspect movement joints alongside other routine building checks

Add every elevation, deck and floor joint to your inspection round. A periodic look picks up tears and lifting before water gets in. If anything looks wrong, call the office on 01277 525 020 or email drawings and photos with photographs.

Rain gets into walls through torn brick and block movement joints. The first sign is often a damp patch indoors by which time the joint has been open for a while. Catching it early keeps the water outside.

Accreditations

Trusted. Accredited. Insured.