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

Expansion joint sealing in Fareham

Expansion and movement joint sealing in walls, decks and floors across Fareham, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Layers of sealant in a movement joint
  • Damp inside where a wall movement joint has failed
  • Movement joints with split or torn sealant
1
Send details
Tell us about the site, with photos if you have them.
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.
London, the South East & Scotland
Constructionline member
£5m PL insurance

Expansion joint sealing in Fareham

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

How the job changes by surface

Car park decks and ramps

Water coming through deck joints is the usual first sign. We strip the old seal, prepare the edges and seal again, and we will tell you if any edges need repairing first.

Brickwork and blockwork joints

Mortar snots and debris in the joint stop it working. Everything is raked out before backing and sealant go in.

Expansion joint sealing in Fareham

Long runs of brick or block have movement joints built in that most people only notice when the sealant has gone. 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. Most enquiries involve arrises breaking up along floor joints and previous reseals laid over old sealant, on blockwork control joints, car park decks and ramps and podiums and floor movement joints. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Fareham is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Movement joints on schools, offices and shops in towns like Fareham are easy to overlook until water gets in. A split or hardened joint lets rain into the wall, and it can no longer take up the movement.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we’re clear about what is covered before work starts.

Location
Fareham (PO16, PO14, PO15, SO31)
Wider area
Hampshire
Guarantee
12 months on our workmanship
Quote
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

How a job runs

Tell us your site hours and access windows and we will plan around them. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. For a town like Fareham, we try to group jobs for the same client into one visit, with one quote covering them. Tell us when the building is open and we will plan to suit.

  1. First the joints are inspected, widths measured and the type of failure noted.
  2. You receive a fixed quote stating the product and the movement it is rated for.
  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. Backing rod or bond-breaker sets the depth, primer goes on where specified, and the sealant is applied and tooled.
  6. Finished joints are inspected, the cure time confirmed and the 12-month guarantee applies.

Before we start on site

  • Tell staff and tenants when we’ll be in
  • Send any specification or drawings in advance
  • Explain the parking and delivery arrangements

Getting a fixed quote

Every quote starts with the facts: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.

Get a quick quote

Read more

Honest limits

A proper diagnosis includes knowing what sealant can’t do. You’ll hear from us if the cause turns out to be one of these:

  • Concrete or masonry repairs along the arrises
  • Structural movement beyond what the joints were designed for (that needs a structural engineer)
  • Changing the joint layout or spacing of a structure

Not sure which it is? You can ring 01277 525 020 or email drawings and photos and we’ll tell you honestly before you book.

Where we work in Fareham

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

Expansion joint sealing around Fareham: points for this area

Fareham sits close to the coast, within about 2 miles. External movement joints in car parks, ramps and yards near the coast take salt and wind-driven rain on top of traffic, so a failed joint lets more in and the edges break up sooner. Central London is about 65 miles from Fareham. The South East has large numbers of industrial estates and warehouses along the motorway corridors.

At places like The Boatyard Industrial Estate, which lies south-east of Fareham, joints are sealed a section at a time so operations carry on. Retail centres such as Fareham Shopping Centre (to the east of Fareham) have floors, service yards and car parks with joints under constant traffic.

Fareham is about 10 miles south-east of Southampton, in Hampshire. We cover commercial sites throughout Fareham, whether it’s a single job or part of a planned programme. 723 places across Hampshire fall within our area, including Fareham. There’s a separate page for Portsmouth, roughly 6 miles from Fareham.

We take on movement joints across the PO16, PO14, PO15 and SO31 postcode area. For a building on Delme Square, High Street and Brookmeadow or nearby, we can quote for movement joints. Access to Fareham is via the A27 and A32. We also cover Fareham Common (1 mile east), Wallington (1 mile east), North Fareham (1 mile north-east), Peel Common (2 miles south) and Welborne (2 miles north) for movement joints. Further afield, our area takes in Winchester (15 miles north), Gosport (4 miles south-east), Havant (9 miles east), Eastleigh (10 miles north-west), Horndean (9 miles north-east) and Totton (14 miles west). Fareham ranks among the main centres of Hampshire, with offices, shops, schools and other public and commercial buildings, and we cover them all.

Around Fareham

Locally, jobs take us to sites close to Wykeham House School, The Lord Arthur Lee pub and Fareham Academy and the streets around them. There’s a railway station in Fareham itself: Fareham station. Well-known places in the area include Carron Row Farm Museum (1.7 miles west) and Knowle Hospital (2 miles north). Not far away are Portsdown Hill and West of the River Alver.

Map of Fareham © OpenStreetMap contributors

Your questions answered

Can you work at a site such as Blackbrook Business Park, by Fareham?

Yes. Estates, retail parks and business parks around Fareham, Blackbrook Business Park among them, are all within reach. To start, just phone 01277 525 020 or email drawings and photos with the unit, the joints involved and your access times.

Is a hospital such as Knowle Hospital somewhere you can work?

Yes. Healthcare sites are among the places we work. Each area is agreed with the ward or department and the estates team in advance.

Do you work to architects’ specifications?

Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.

Are you insured?

Yes. We are fully insured, including public liability cover.

Do you use silicone or polyurethane in movement joints?

Movement capability matters most, classified under BS EN ISO 11600. Where two different materials meet, a hybrid sealant can be the better choice.

What timescale should we allow for resealing expansion joints?

It normally takes a short visit for a handful of joints, or several days or more for a car park deck or long runs of facade joints. Timings are set out in the quote.

Why do our movement joints keep failing?

Normally the joint is moving more than the sealant can take. We review the joint design as well as the sealant before pricing, rather than replacing like for like.

Commercial clients in Fareham

We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Fareham. Several sites can go on one quote, so there’s one set of paperwork to deal with.

As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.

Common problems we fix in Fareham

Sealant peeling cleanly off one side is an adhesion failure. Dusty, damp or contaminated faces, a missing primer and three-sided adhesion are the usual causes.

Clients typically get in touch after noticing something like this:

  • Leaks through car park deck joints onto the level below
  • Movement joints with split or torn sealant
  • Rain penetration at brick or block movement joints
  • Weathered movement joint sealant that no longer flexes

Hospitals like Knowle Hospital (2 miles north of Fareham) have multi-storey or surface car parks whose joints carry vehicles round the clock.

What your quote should include

  • Can the work be phased to keep areas open?
  • Their public liability cover
  • The terms of the workmanship guarantee
  • Their approach to joint depth and backing

How to choose a sealant contractor

Should maintenance staff do it?

Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

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.

Accreditations

Trusted. Accredited. Insured.