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

Expansion Joint Sealing in Wymering

Work needed on a movement joint in Wymering? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Weathered movement joint sealant that no longer flexes
  • Water dripping through deck or ramp joints
  • Spalled or broken joint edges in floors and decks
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Expansion joint sealing across Wymering

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Expansion joint sealing in Wymering, done properly

If you need expansion joint sealing in Wymering, start with photos and joint lengths. Send them through our quote form, and we will arrange a site visit if needed, then send a fixed quote that names the sealant. To discuss the joints first, phone 01277 525 020 or email us. Most enquiries involve movement joints with split or torn sealant and sealant peeling off one face of the joint, on brickwork movement joints, blockwork control joints and cladding panel joints. For commercial sealant work in Wymering, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

Around Wymering, most floor and movement joint jobs are single buildings or yards. Getting widths, depths and traffic details up front means one visit, not two.

Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.

The Mastic Doctor team standing beside their branded vans outside an office building
Place
Wymering (PO6, PO2)
Wider area
Portsmouth
Guarantee
12 months on every job
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Page updated
3 November 2026

When it isn’t the sealant

Not every problem is a sealant problem, and we’d rather tell you before you spend money. It won’t fix:

  • Damaged metal nosings or cover plates over a joint
  • Concrete or masonry repairs along the arrises
  • Movement on a scale no sealant is meant to absorb

Not sure which it is? You can give us a call on 01277 525 020 or use the quote form and we’ll tell you honestly.

Surfaces we seal

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

Why deal with it now?

On a car park, resealing joints in phases keeps the deck open. Work can be planned so parts of the deck stay open. We agree phasing with you before work starts. Over time, UV, weather and movement wear any sealant out. Replacing it before it fails keeps water out.

Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.

Why clients in Wymering choose us

  • One contact handling all your sites
  • Health and safety: CHAS accredited
  • Sealing commercial buildings since 2005
  • Clear, fixed quotes

See our cost guide or our accreditations.

Site staff or a sealant specialist?

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.

Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Expansion joint sealing in Wymering: the local picture

Wymering is within about 1 mile of the coast. Open joints in coastal car parks and yards let in salt-laden water as well as grit, so a failed joint lets more in and the edges break up sooner. Central London is about 62 miles from Wymering. Distribution warehouses and industrial estates are common around the motorway corridors that serve the capital; their floors carry heavy traffic every shift.

Hospitals like Queen Alexandra Hospital (less than half a mile north-east of Wymering) have multi-storey or surface car parks whose joints carry vehicles round the clock. For estates staff at a university like University of Portsmouth - North Zone, 3.4 miles to the south of Wymering, building and paving joints are part of the planned maintenance list. At places like Limberline Spur Industrial Estate (1.1 miles south-east of Wymering), joints are sealed a section at a time so operations carry on.

Wymering is about 3 miles north of Portsmouth, in Portsmouth. We cover commercial sites throughout Wymering, for single jobs and planned programmes alike. Wymering is one of 19 places we cover in Portsmouth.

Commercial sites across PO6 and PO2 are covered for movement joints. For a building on Dean Road, Deal Road and Park Lane or nearby, we can quote for movement joints. With the A397 nearby, Wymering is easy to get to with materials and equipment. Close to Wymering, our area also takes in Cosham (1 mile south-east), Paulsgrove (1 mile west), Hilsea (1 mile south), Drayton (1 mile east) and Widley (1 mile north-east). Nearby towns on our patch include Portsmouth (3 miles south), Southsea (4 miles south), Milton (4 miles south), Landport (3 miles south), Baffins (3 miles south) and Portsea (4 miles south-west).

Around Wymering

In Wymering, that means premises near Springfield School, UTC Portsmouth and Alexandra Park. There’s a railway station in Wymering itself: Cosham station. Well-known places in the area include World War I Remembrance Centre (1.4 miles south-east) and Tricorn Centre (3.1 miles south). Green spaces nearby include Portsdown Hill and Southmoor Nature Reserve.

Map of Wymering © OpenStreetMap contributors

On site: what to expect

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 Wymering is planned as a single visit where we can. Clear photographs and measurements help us bring the right products.

  1. First the joints are inspected, widths measured and the type of failure noted.
  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. The failed seal is cut out and both joint faces cleaned back to sound material.
  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.

What we need from you

  • Point out parking and an unloading spot
  • Send your site hours and access windows
  • Tell us which areas need to stay in use

Ask for a quote

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, ring 01277 525 020 or use the quote form.

Get a price

Read more

How the job changes by surface

Cladding panel joints

Access to cladding joints is agreed before the price is fixed. Photos taken near the joints help us price accurately, or we visit if they don’t show enough.

Podium joints

Podiums take foot traffic, planters and weather. We choose a product that copes with feet, wheels and weather.

Questions we’re asked in Wymering

Can you take on a job at a hospital such as Queen Alexandra Hospital?

Yes, hospitals are one of the sectors we cover. Each area is agreed with the ward or department and the estates team in advance.

Is a smaller place like Wymering outside your area?

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.

When can you be on site?

The office is staffed Monday to Friday, from 8am until 5pm. Let us know your site hours and access windows, and the work will be planned around them.

Can you follow the specification on our project?

Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.

How long will the new sealant last?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.

Does the weather affect the work?

It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.

What’s the quickest route to a quote?

The quote form is the simplest route, though you can also phone 01277 525 020 or email the details over. Photos, drawings or a joint schedule help us quote quickly.

Keeping the joints sound

After handover, a little attention goes a long way:

  • Treat a small split as a warning, not a cosmetic issue
  • Check joints after long freezing spells
  • Raise snow-clearing blades over deck joints where possible
  • Put movement joints on the planned maintenance inspection round

Keep wheels, feet and water off new joints until the sealant has cured. The time varies with product, conditions and joint depth, and we confirm it for each area before we leave. Keeping the area coned off until then avoids tyre marks and damage.

A failed deck joint lets water straight through to the level below. Salty water dripping through stains soffits and lands on parked vehicles. Resealing early limits the damage.

Accreditations

Trusted. Accredited. Insured.