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

Expansion joint sealing in Lions Green

Expansion and movement joint sealing in walls, decks and floors throughout Lions Green and nearby, by CSCS-carded applicators. CHAS accredited and fully insured.

  • Joints packed with grit and debris
  • Spalled or broken joint edges in floors and decks
  • Water dripping through deck or ramp joints
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
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS accredited
Fully insured: £5m PL

Expansion joint sealing near Lions Green

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

How we handle expansion joint sealing in Lions Green

Buildings and slabs are never completely still: temperature, moisture, shrinkage and loading all make materials grow and shrink. Movement joints are where that movement is absorbed and the seal across each one keeps out water and grit. We seal and reseal movement joints in walls, panels, decks and floors for buildings in Lions Green. We work on podiums and floor movement joints, blockwork control joints and brickwork movement joints, and the failures we’re asked to look at most are chipped joint edges on forklift routes and water getting into the wall through a failed joint. One point of contact handles commercial sealant work in Lions Green from the first photographs to the final walk-round, for single jobs and planned programmes alike.

Halls, schools and small commercial buildings near places like Lions Green have movement joints in brick, block and concrete too. They tend to be overlooked until something leaks or cracks.

Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.

Place
Lions Green (TN21)
Region
East Sussex
Guarantee
A 12-month guarantee
Quote
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Why deal with it now?

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 normally not far behind. Where it helps, we quote both options. For buildings around smaller places like Lions Green, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Renewing joints in good time avoids the problem.

We don’t publish prices, since every building and every scope is different. For a fixed figure, call for a quote and we will price your job on its own details.

What you get with us

  • Commercial sealant work since 2005
  • CSCS-carded applicators
  • Clear, fixed quotes
  • Joints cleaned back to sound surfaces

Take a look at how commercial sealant jobs are priced or our accreditations and insurance.

Work for main contractors and building owners

Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first.

Hospitality, education, healthcare, office and retail clients book us directly too. The work is planned around how the building runs, so the building keeps working while we do.

How the quote is worked out

Quotes vary with the job. Expect it to depend on:

  • How much existing material needs removing
  • Quantities, in metres or numbers
  • Phasing around occupants
  • Induction, permit and paperwork requirements

Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.

What to include in your enquiry

For an accurate fixed quote, we need a clear picture of the site. Send us:

  • Clear photos of the problem areas
  • Anything awkward about access or site hours
  • Rough lengths or quantities, or drawings if you have them
  • The postcode of the building

Pricing a project or setting a maintenance budget? We will quote against your scope and drawings you can plan around. For a chat about it beforehand, call 01277 525 020 or email a schedule or drawings.

When to bring in a specialist

Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong usually costs more in the end than doing them right.

Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

From enquiry to sign-off

Inspect, seal, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. For a building around Lions Green, tell us how to find it and who will meet us. Add it to your enquiry and we will build it into the plan.

  1. First, the joints are inspected for width, movement and the type of failure.
  2. Next, we fix a price and confirm the sealant we propose for the movement.
  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. Finished joints are checked and backed by our 12-month guarantee.

What we need from you

  • Clear stock, furniture or equipment away from the joints
  • Confirm the product named in the specification
  • Point out parking and an unloading spot

Request a quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to phone 01277 525 020 or email us with what you know.

Ask for a quote

Related advice

Traffic, movement and joints around Lions Green

At least three named trading, business or retail sites lie within about 3 miles of Lions Green. Floors, loading bays and yards on sites like these are where floor and movement joints work hardest. Lions Green sits in one of the drier corners of the country, the South East. Outside joints in yards and car parks still have to be dry before sealing, and winter de-icing salt on car parks and ramps works into any open joint.

Another example is Belmont Business Centre, 2 miles to the south-west of Lions Green, where floors and yards would be done in stages around the occupiers. Parks like Merrydown Business Park (1.2 miles south-east of Lions Green) combine paved areas, car parks and building elevations, each with joints that move.

Lions Green is about 5 miles east of Uckfield, in East Sussex. We cover commercial sites throughout Lions Green, whether it’s a single job or part of a planned programme. Our East Sussex coverage takes in 308 places, large and small. There’s a separate page for Brighton, roughly 17 miles from Lions Green.

We cover the TN21 postcode districts for movement joints. If your building is just outside Lions Green, we cover Waldron (1 mile north-west), Burlow (1 mile south-east), Horam (1 mile south-east), Maynard's Green (2 miles east) and Roser's Cross (2 miles north). A short drive away, we cover Eastbourne (11 miles south), Bexhill-on-Sea (13 miles south-east), Seaford (12 miles south), Lewes (10 miles south-west), Hailsham (6 miles south) and Crowborough (8 miles north).

Around Lions Green

In Lions Green, that means premises near The Star Inn and the streets around them. Nearby you will also find Tickerage Castle (3.6 miles north-west) and Sussex Farm Museum (1.2 miles east). The countryside around Lions Green includes Selwyns Wood.

Map of Lions Green © OpenStreetMap contributors

Common problems we fix in Lions Green

Sun, rain and frost age external movement joints. UV hardens the surface, and the sealant loses its ability to stretch.

Common reasons buildings call us in:

  • Expansion joints filled with dirt and stones
  • Rain penetration at brick or block movement joints
  • Car park joints leaking onto vehicles below
  • Previous reseals laid over old sealant

Hospital campuses such as Hellingly Hospital Railway, 4.1 miles south-east of Lions Green, grow in stages, leaving movement joints wherever new blocks meet old.

What to look for in a quote

  • Will CSCS-carded applicators be on site?
  • Is the sealant right for the movement and the substrate?
  • Can the work be phased to keep areas open?
  • Their public liability cover

Questions to ask before you appoint anyone

Your questions answered

Will you take on work at estates like Merrydown Business Park, close to Lions Green?

Yes, sites like Merrydown Business Park are within our area, along with the rest of Lions Green. A few photographs and the unit address let us price the work.

Is Lions Green too far out for you?

Not at all. Lions Green is within our area. We cover Greater London and the counties of the South East. Good photos up front let us bring everything on the first visit.

Can you handle several sites?

Yes. A group of buildings can go on one quote, with one point of contact.

Can staff carry on working while you’re here?

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

Do you hold CHAS accreditation?

Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.

Can you work on car park ramps and decks?

Yes. We use a sealant designed for wheel loads and the expected movement with bays phased so the car park keeps operating.

Do the joint edges need to be sound before sealing?

Sealant needs sound faces to bond to, so broken or crumbling edges have to be repaired first. We flag it at the quote stage where we can see it.

Accreditations

Trusted. Accredited. Insured.