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

Expansion and movement joint sealing in Charlton, Hampshire

Sealant work in Charlton for main contractors, managing agents and facilities managers: expansion and movement joint sealing in walls, decks and floors, quoted at a fixed price.

  • Joints packed with grit and debris
  • Rain penetration at brick or block movement joints
  • Previous reseals laid over old sealant
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Expansion joint sealing in Charlton

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

Commercial clients in Charlton

For main contractors, we work as the sealant subcontractor. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.

Hotels, schools, healthcare sites, offices and retail units book us directly too. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.

Expansion joint sealing in Charlton, done properly

A movement joint only works while its seal does. Once it fails, water, grit and debris get in, the joint can’t close properly and its edges begin to crumble. Resealing at the first signs of failure is far cheaper than repairing the material either side. Most enquiries involve hardened, cracked sealant on exposed facades and debris jammed in movement joints, across precast concrete panel joints, brickwork movement joints and car park decks and ramps. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Charlton is the same: the right product in a properly prepared joint.

For a site near Charlton, measurements and photographs up front mean one trip where possible. Note joint widths and the traffic that uses them, and we’ll take it from there.

We stand behind the joints we seal with a 12-month guarantee. That covers our preparation and application.

Location
Charlton (SP10)
Wider area
Hampshire
Guarantee
12 months on every job
Quotes
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Where floor joints take the most wear near Charlton

Charlton is in the South East, one of the UK’s drier regions. External joints still wait for dry conditions, and winter de-icing salt on car parks and ramps works into any open joint. Charlton has at least three named business or industrial parks inside a 3-mile radius. Their warehouses, yards and car parks are exactly where joints take the most punishment.

For buildings at a park such as Mylen Road Business Park, 0.8 miles to the south of Charlton, brick and panel movement joints are easy to forget until one leaks. Schools such as Harrow Way Community School have movement joints in their walls and floors that are easy to overlook. For a centre such as Enham Arch Retail Park (1.1 miles east of Charlton), the service yard and car park joints normally need attention first.

Charlton is about 1 mile north-west of Andover, in Hampshire. Looking for expansion joint sealing in Charlton? We can help. 723 places across Hampshire fall within our area, including Charlton. There’s a separate page for Southampton, about 22 miles away.

We take on movement joints across the SP10 postcode area. Among the streets we cover are Dacre Close, Home Farm Gardens and Augustine Way, and sites on any of them can send details for a fixed quote. Just outside Charlton, we also work in Foxcotte (1 mile north-west), Penton Mewsey (1 mile west), Penton Corner (1 mile west), Penton Grafton (1 mile west) and Red Post Bridge (2 miles south-west). Nearby towns on our patch include Winchester (14 miles south-east), Hyde (13 miles south-east), Tidworth (7 miles west), Weeke (13 miles south-east), Stanmore (14 miles south-east) and Ludgershall (6 miles north-west).

Around Charlton

In Charlton, that means premises near Portway Infant School. The closest station to Charlton is Andover station, about 0.8 miles south-east of the centre. A little further out are Andover War Memorial Hospital (0.5 miles south-east) and Andover Museum (1.3 miles south-east). For a walk, there’s Anton Lakes and Mill Lake.

Map of Charlton © OpenStreetMap contributors

What the job involves on each surface

Internal floor movement joints

Forklift and pallet-truck wheels break unsupported joint edges. We match the product to the traffic and the movement, and tell you if edges need repairing first.

Car park decks and ramps

Failed deck joints often show as leaks on the level below. The old seal comes out, the edges are prepared and the joint resealed.

Our process

A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work usually 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, and we clear our waste as we work. If others near Charlton need work, visits can be combined. You’ll have a fixed quote before work starts.

  1. We start with photographs, approximate lengths and any drawings, visiting where needed.
  2. We compare each joint’s width with the movement and the sealant’s capability and tell you if the design looks wrong for the movement.
  3. Every joint is cleared of the failed seal and any grit packed into it.
  4. Edges are checked, and we tell you if any need repairing before sealing.
  5. A sealant suited to the movement and traffic is laid to depth and tooled.
  6. Each area is handed back after its cure time, under our 12-month guarantee.

Preparing the site

  • Let building users know which areas are affected
  • Have the specification and drawings to hand
  • Send asbestos survey details if the building is pre-2000

Request a quote

Photos, drawings or a schedule of the joints are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.

Ask for a quote

Related advice

What sealant work can’t fix

A proper diagnosis includes knowing what sealant can’t do. We’ll tell you if the real problem is any of the following:

  • Structural movement beyond what the joints were designed for (that needs a structural engineer)
  • Damaged metal nosings or cover plates over a joint
  • Failed waterproofing membranes on podiums, roofs or decks (a waterproofing specialist’s job)

If in doubt, call 01277 525 020 or email us and we will say what we think.

Joints and surfaces we work on

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

How the quote is worked out

There’s no standard rate for sealant work, since sites vary so much. What we take into account:

  • Any access equipment needed
  • Joint width, depth and condition
  • Whether old sealant has to be cut out first
  • Location, for remote and island sites

The specified product makes a difference, and so does the preparation. Access, phasing and site requirements come into it too.

Sending details for a quote

For an accurate fixed quote, we need to understand the site. Send us:

  • Whether an asbestos survey exists
  • How the joints are reached, and at what height
  • Where the site is, with the postcode
  • When you need the work done

A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or phone 01277 525 020 or send photos by email to discuss it first.

Maintenance after handover

Sealant joints are maintenance items, and how long they last depends on how they’re treated. We suggest:

  • Report split or peeling joint sealant early
  • Raise snow-clearing blades over deck joints where possible
  • Look over external and deck joints after a hard winter
  • Include every elevation and deck joint in periodic inspections

Fresh joint sealant needs its full cure time before it takes traffic or water. How long that takes depends on the product, the temperature and the depth of the joint. Keeping the area coned off until then avoids tyre marks and damage.

Once debris packs a failed joint, the structure has nowhere to expand. The arrises crack and break away under the load, turning a sealant job into a repair job. A sound seal keeps the joint working.

Common questions from Charlton clients

Can you take on a job at a hospital such as Andover War Memorial Hospital?

Yes. We work in healthcare settings as well as offices and schools. Each area is agreed with the ward or department and the estates team in advance.

Can you work at a site such as Mylen Road Business Park, by Charlton?

Yes. We cover Charlton and the area around it, including industrial estates, business parks and retail parks such as Mylen Road Business Park. To start, just give us a call on 01277 525 020 or email a schedule or drawings with the unit, the joints involved and your access times.

How long before the joints can be used?

The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.

Will you quote for a small job?

We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.

Do your applicators hold CSCS cards?

Yes. We use CSCS-carded applicators, as many construction sites ask for.

Are you CHAS accredited and on Constructionline?

Yes. Mastic Doctor is CHAS accredited and a Constructionline member.

What’s the quickest route to a quote?

The quote form is the simplest route, though you can also call the office on 01277 525 020 or use the quote form. Include photographs or drawings if you have them.

Accreditations

Trusted. Accredited. Insured.