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

Expansion joint sealing in Hounsdown

We carry out expansion and movement joint sealing in walls, decks and floors in Hounsdown and the surrounding area. Send photos or drawings for a fixed quote.

  • Spalled or broken joint edges in floors and decks
  • Weathered movement joint sealant that no longer flexes
  • Rain penetration at brick or block movement joints
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
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 for Hounsdown sites

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

What the job involves on each surface

Brickwork and blockwork joints

Brick and block edges need careful preparation. We clean them back to sound material and prime where the manufacturer specifies before the bead goes in.

Podium joints

Podium joints often sit within a waterproofing system. We reseal the joint where sealant is the specified fix and flag it if the membrane looks like the source.

Expansion joint sealing in Hounsdown

If you need expansion joint sealing in Hounsdown, start with photos and joint lengths. We’ll come and look where photographs don’t show enough before issuing a fixed quote. You can also speak to us on 01277 525 020 or use the quote form to talk the joints through. Most enquiries involve rain penetration at brick or block movement joints and layers of sealant in a movement joint, on cladding panel joints, car park decks and ramps and podiums and floor movement joints. A specialist sealant contractor works differently from a general builder: in Hounsdown, that means joint design, primers and backing rod as standard.

In a smaller place such as Hounsdown, 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.

We stand behind the joints we seal: 12 months, guaranteed. That covers our preparation and application, 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
Hounsdown (SO40)
Region
Hampshire
Guarantee
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026

Warehouse floors and decks around Hounsdown

Hounsdown is within about 2 miles of the coast. Open joints in coastal car parks and yards let in salt-laden water as well as grit, which is why split joints are worth sealing before the edges deteriorate. 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, and winter de-icing salt on car parks and ramps works into any open joint.

For buildings at a park such as Rushington Business Park, under half a mile north of Hounsdown, brick and panel movement joints are easy to forget until one leaks. At places like Hounsdown Business Park, 0.5 miles to the south-east of Hounsdown, joints are sealed a section at a time so operations carry on. For an estate such as Tatchbury Mount Hospital, 2.2 miles to the north-west of Hounsdown, the joints in ramps, decks and long building elevations all need attention over time.

Hounsdown is about 1 mile south of Totton, in Hampshire. Anywhere in SO40, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. 723 places across Hampshire fall within our area, including Hounsdown.

If you need expansion joint sealing in SO40, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Streets here include Main Road, Pound Lane and Chapel Lane, and sites on any of them can send details for a fixed quote. If your building is just outside Hounsdown, we cover Ashurst Bridge (1 mile north-west), Totton (1 mile north), Netley Marsh (1 mile north-west), Woodlands (2 miles west) and Winsor (3 miles north-west). Further afield, our area takes in Winchester (13 miles north-east), Eastleigh (8 miles north-east), Fareham (14 miles east), Chandler's Ford (7 miles north-east), Hedge End (9 miles east) and Lymington (10 miles south).

Around Hounsdown

Locally, jobs take us to sites close to The Forest Inn and Foxhills Infant School. Hounsdown’s nearest station is Totton station, about 1.1 miles north-east of the centre. Other landmarks nearby include Ashurst Hospital (1.4 miles south-west) and National Dairy Museum (0.8 miles south). Green spaces nearby include Testwood Lakes.

Map of Hounsdown © OpenStreetMap contributors

How the quote is worked out

Before we quote, we look at:

  • Working within restricted access windows
  • The size and state of each joint
  • Specialist products, such as fire-rated or hygienic sealants
  • How much existing material needs removing

We don’t publish prices, since every building and every scope is different. For a fixed figure, call for a quote.

What we need to price the job

Good information means a firmer quote. When you get in touch, include:

  • A wide shot and a close-up of the area
  • Whether the building will be occupied during the work
  • The product your specification calls for
  • The postcode of the building

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to phone 01277 525 020 or send details through our quote form with what you know.

After the work

For the best life from the joints:

  • Keep racking legs and heavy point loads off floor joints
  • Sweep decks, ramps and floors so grit doesn’t collect in the joints
  • Reopen bays and walkways only after the stated cure time
  • Include every elevation and deck joint in periodic inspections

Our workmanship on movement joints carries a 12-month guarantee. Keep the handover details, product and date with your O&M records.

Floor joints with failed fillers break up quickly under wheels. Broken arrises jolt trucks, loads and drivers and the broken length grows with every pass. Keeping the filler or sealant sound protects the floor.

Why act early in Hounsdown

Patching the worst lengths of a joint can make sense short term. But if the rest of the run is the same age and product, it’s typically not far behind, and a second visit means paying for access again. Where it helps, we quote both options. Over time, UV, weather and movement wear any sealant out. Replacing it before it fails keeps water out.

The product called for affects the cost, and so does the preparation. Access, phasing and site requirements come into it too.

Why us?

  • Work to your specification and the manufacturer’s guidance
  • 12-month guarantee on workmanship
  • One phone line for London, the South East and Scotland
  • CHAS accredited contractor

See our cost guide or how we’re accredited.

What sealant work can’t fix

Our job is the joint, not everything around it. Sealant alone won’t deal with:

  • Concrete or masonry repairs along the arrises
  • Cracking or settlement that calls for an engineer’s assessment
  • Waterproofing layers buried beneath the sealant

If you’re not sure, just give us a call on 01277 525 020 or email a schedule or drawings and we will give you a straight answer.

What we seal

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

Questions about Hounsdown

Does your area include sites such as Rushington Business Park, near Hounsdown?

Yes. Our area takes in Hounsdown and its surroundings, with estates and business parks such as Rushington Business Park included. Photos and a short description are enough for a first look.

Is Hounsdown too small for you to travel to?

Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.

What causes movement joint sealant to fail?

The way it has failed usually tells us why: tearing down the centre means too much movement, and lifting off one side means poor adhesion. Broken edges are a third possibility.

Do you guarantee expansion joint work?

Each job is backed by a 12-month guarantee on the workmanship. The guarantee covers how we sealed, not damage caused afterwards.

How do you deal with asbestos in old sealant?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. 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. We don’t remove asbestos-containing materials.

Do you take on multi-site work?

Yes. A group of buildings can go on one quote, with one point of contact across South East England, Greater London and Scotland.

When can you be on site?

We’re in the office from 8am until 5pm, Monday to Friday. Tell us your site hours and access windows and the work will be fitted around them.

Our process

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. Work in places the size of Hounsdown 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. You get a fixed quote with the product and its movement capability stated.
  3. Old sealant and filler are cut out and the joint faces cleaned back to sound material, flagging any broken edges that need repair before sealing.
  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. Finished joints are checked and backed by our 12-month guarantee.

Getting the site ready

  • Move anything stored against the joints
  • Share your working hours and any access restrictions
  • Send asbestos survey details if the building is pre-2000

Getting a fixed quote

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. If you have questions first, phone 01277 525 020 or send photos by email.

Get a price

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