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

Sandy Balls expansion joint sealing

Expansion and movement joint sealing in walls, decks and floors throughout Sandy Balls and nearby, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Chipped joint edges on forklift routes
  • Hardened, cracked sealant on exposed facades
  • Car park joints leaking onto vehicles below
1
Send details
Drawings, photos, a joint schedule or a site 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
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS accredited
£5m public liability

Expansion joint sealing near Sandy Balls

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

Expansion joint sealing in Sandy Balls, done properly

Width, depth and product all have to work together. Joint width must suit the movement and the movement class of the sealant. For wider joints, many sealant makers recommend a width-to-depth ratio, often around 2:1. We work on car park decks and ramps, cladding panel joints and blockwork control joints, and the failures we are asked to look at most are water dripping through deck or ramp joints and sealant peeling off one face of the joint. Facilities teams, main contractors and managing agents in Sandy Balls tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Smaller community and commercial buildings around Sandy Balls have their own movement joints in walls and floors. They’re easily forgotten until water gets in or an edge breaks.

Our workmanship is guaranteed for 12 months, in Sandy Balls as everywhere else we work. If our installation lets you down in that time, we return and fix it.

Location
Sandy Balls (SP6)
Wider area
Hampshire
Guarantee
12 months on every job
Price
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

When to call us in Sandy Balls

Sometimes the sealant holds but the substrate breaks away. Weak or crumbling concrete, brick or render edges give the sealant nothing sound to grip so edge repair has to come before resealing.

Common reasons buildings call us in:

  • Weathered movement joint sealant that no longer flexes
  • Torn sealant in brick or block movement joints
  • Water dripping through deck or ramp joints
  • Joints packed with grit and debris

A healthcare site such as Fordingbridge Hospital (to the west of Sandy Balls) depends on car parks, ramps and service yards whose joints take traffic all day.

What to look for in a quote

  • How the existing material will be dealt with
  • The named product and why it was chosen
  • Their pre-qualification and accreditations
  • The terms of the workmanship guarantee

Questions to ask before you appoint anyone

When something else is needed

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

  • Crumbling edges that would give a new bead nothing sound to grip
  • Movement on a scale no sealant is meant to absorb
  • Leaks coming from the membrane rather than the joint seal

If in doubt, phone 01277 525 020 or use the quote form and we will say what we think before you book.

Joints and surfaces we work on

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

Your questions answered

Is Sandy Balls off your patch?

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

Do you take on work at healthcare sites like Fordingbridge Hospital?

Yes. Healthcare sites are among the places we work. We follow the site’s permits, sign-in and infection-control procedures in every area.

Which product is best for expansion joints?

Whatever suits the joint and the specification. We name the proposed product in the quote, so you know what’s going in.

What exactly is a movement joint?

The terms overlap a great deal. A movement joint allows for expansion, contraction, shrinkage and loading while the sealant stops grit and water getting in.

Can you work while the building is occupied?

Typically, yes. We phase the work so most of the building stays in use.

What hours do you work?

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

When can the area be used after sealing?

The product and site conditions decide that. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.

Commercial clients in Sandy Balls

If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, and each stage is agreed with your contact.

Doing it in-house

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.

Expansion joint sealing around Sandy Balls: how the place shapes the job

Less than 3 miles from Sandy Balls there are at least three named estates and business parks. Floors, loading bays and yards on sites like these are where floor and movement joints work hardest. Sandy Balls sits in one of the drier corners of the country, the South East. Even so, yard and car park joints are only sealed when they’re dry and clean, and winter de-icing salt on car parks and ramps works into any open joint.

If you manage units on an estate such as Arch Farm Industrial Estate, which lies west of Sandy Balls, the floor joints under forklifts and pallet trucks and the slab joints in the yard are the ones to watch. Another example is Fordingbridge Business Park (2.1 miles west of Sandy Balls), where floors and yards would be done in stages around the occupiers.

Sandy Balls is in Hampshire. Anywhere in SP6, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Sandy Balls is one of 723 places in Hampshire on our list for movement joints. We also cover Southampton, around 16 miles from Sandy Balls.

Business premises anywhere in SP6 are within our area for movement joints. If your site is on The Pines, River Road and Larch Row or close by, send details and we will quote for movement joints. Just outside Sandy Balls, we also work in Godshill (1 mile north-east), Criddlestyle (1 mile south-west), Blissford (1 mile south), Stuckton (1 mile south-west) and Frogham (1 mile south). Nearby towns on our patch include Totton (11 miles east), Lymington (15 miles south-east), Romsey (13 miles east), New Milton (13 miles south), Ringwood (6 miles south) and Barton on Sea (14 miles south).

Around Sandy Balls

Around Sandy Balls, our work takes us to commercial buildings near The Fighting Cocks pub, among other places. A little further out are Fordingbridge Doll Museum (1.3 miles west) and Godshill Castle Hill (0.9 miles north). Green spaces nearby include Linbrook Lake and Blashford Lakes.

Map of Sandy Balls © OpenStreetMap contributors

On site: what to expect

Before we leave any area, the masking comes off, the area is cleaned and every joint is checked, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. For work around Sandy Balls, we aim to finish in one visit, so photos and measurements up front really help. That way the right products come on the day.

  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. We strip out the old seal and prepare the faces.
  4. We control the depth with backing rod or, in shallow joints, bond-breaker tape.
  5. Primer goes on where the manufacturer specifies it, followed by the sealant, which is then tooled off.
  6. We check every joint before sign-off, and the work carries our 12-month guarantee.

Before we start on site

  • Point out any areas we must not close
  • Tell us what induction or permit system the site runs
  • Share the asbestos register for older buildings

Request a quote

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.

Ask for a quote

Related advice

What affects the price in Sandy Balls

We price every job individually. The main factors are:

  • Travel to remote or island sites
  • Site requirements such as inductions and permits
  • The size and state of each joint
  • Any access equipment needed

Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.

Details that help us quote

The more we know, the firmer the quote. Helpful details to send:

  • Whether an asbestos survey exists
  • Specification clauses that apply
  • Approximate linear metres or a joint schedule
  • Clear photographs of the problem areas

Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.

Accreditations

Trusted. Accredited. Insured.