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

Expansion and movement joint sealing in Northease, East Sussex

Our CSCS-carded applicators take on expansion and movement joint sealing in walls, decks and floors in Northease. Send photographs or drawings for a fixed quote.

  • Torn sealant in brick or block movement joints
  • Arrises breaking up along floor joints
  • Damp inside where a wall movement joint has failed
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
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

Need expansion joint sealing in Northease?

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

Expansion joint sealing in Northease

Every structure moves a little, all the time: temperature, moisture, shrinkage and loading all make materials grow and shrink. Expansion and movement joints are built in so the structure can move without cracking 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 Northease. The enquiries we see most involve sealant pulling off the joint face and arrises breaking up along floor joints, across car park decks and ramps, podiums and floor movement joints and brickwork movement joints. One point of contact handles commercial sealant work in Northease from the first photographs to the final walk-round, whether it’s one building or several.

Smaller community and commercial buildings around Northease have their own movement joints in walls and floors. They tend to be overlooked until something leaks or cracks.

What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Northease (BN7)
Wider area
East Sussex
Guarantee
A 12-month guarantee
Quote
Fixed quote, scope in writing
Call
01277 525 020
Last updated
3 November 2026

Quoting for work in Northease

What shapes the price:

  • The size and state of each joint
  • How accessible the joints are
  • The site’s rules and procedures
  • Distance, for remote addresses

Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote and we will put a fixed figure on it.

What we need to price the job

The more we know, the firmer the quote. When you get in touch, include:

  • Specification clauses that apply
  • What the building is and how it’s used
  • When you need the work done
  • Photos of the joints, close up and from further back

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, call 01277 525 020 or email drawings and photos.

On site: what to expect

Before we leave any area, we remove the tape, clean down and inspect every joint, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. If others near Northease need work, visits can be combined. A fixed quote is given before anything starts.

  1. We assess the joints on site or from photos, noting widths and how each has failed.
  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. We strip the old sealant or filler and prepare each face until it’s sound and dry.
  5. Depth is controlled with backing, the faces are primed where the maker calls for it, then the bead is laid and tooled.
  6. Finished joints are inspected, the cure time confirmed and the 12-month guarantee applies.

Getting the site ready

  • Clear stock, furniture or equipment away from the joints
  • Flag any permit to work we will need
  • Share the asbestos register for older buildings

Request a quote

Every quote starts with the facts: the joints involved, quantities, access and the product called for. Send what you have, and we will arrange a site visit if anything is unclear.

Get a price

Advice

Surface by surface

Concrete and precast panel joints

Precast panels often have surface residues that sealant won’t bond to. We prepare the faces thoroughly and prime where the maker calls for it, so the new seal holds.

Brickwork and blockwork joints

A brick movement joint full of old mortar or debris can’t close. We clear the joint fully before sealing and flag any joint that seems undersized.

When to call us in Northease

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.

It’s worth sending us details if you spot any of the following:

  • Sealant pulling off the joint face
  • Joints packed with grit and debris
  • Water getting into the wall through a failed joint
  • Movement joints with split or torn sealant

For estates staff at a university like University of Brighton, which lies south-east of Northease, building and paving joints are part of the planned maintenance list.

Before you book anyone

  • Do they follow the manufacturer’s priming guidance?
  • How they’ll work around occupants
  • The named product and why it was chosen
  • What level of public liability insurance do they hold?

How to choose a sealant contractor

Questions we are asked in Northease

Would you work within a site like Lewes Victoria Hospital?

Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Can you work at a site such as Cliffe Industrial Estate, by Northease?

Yes. Estates, retail parks and business parks around Northease, Cliffe Industrial Estate among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.

Do you seal on top of existing sealant?

No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.

How do you choose the sealant?

If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

What happens if it rains on the day?

Sealing onto a damp surface leads to adhesion failure. The work is simply moved to the next suitable day.

How long do sealant joints last?

Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.

Are your applicators CSCS-carded?

Yes. We use CSCS-carded applicators.

Where floor joints take the most wear near Northease

The South East is one of the drier parts of the UK. External joints still wait for dry conditions, and where de-icing salt is spread in winter, open joints let it in. Northease 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.

A healthcare site such as Lewes Victoria Hospital (to the north of Northease) depends on car parks, ramps and service yards whose joints take traffic all day. On industrial estates such as Cliffe Industrial Estate, which lies north-east of Northease, saw-cut floor joints, loading bay slabs and yard joints take the heaviest traffic.

Northease is about 3 miles south of Lewes, in East Sussex. Businesses, contractors and managing agents in Northease can call on us for movement joints. We work across 308 places in East Sussex, from busy centres to rural villages. Our Brighton page has more on work in that area (6 miles or so).

We take on movement joints across the BN7 postcode area, for business premises of every kind. Close to Northease, our area also takes in Rodmell (1 mile south-east), Iford (1 mile north-west), Kingston near Lewes (2 miles north-west), Southover (2 miles north) and Cliffe (2 miles north). Bigger towns within reach include Eastbourne (13 miles east), Seaford (6 miles south-east), Hailsham (11 miles east), Uckfield (10 miles north-east), Newhaven (4 miles south-east) and Peacehaven (3 miles south).

Landmarks near Northease

Locally, jobs take us to sites close to Lewes and Laughton Levels. For rail, the closest station is Southease station, roughly 1.4 miles south-east. Well-known places in the area include Lewes Castle (2.2 miles north) and Lewes Victoria Hospital (2.4 miles north). Green spaces nearby include Southerham Farm and Itford Hill.

Map of Northease © OpenStreetMap contributors

What sealant work can’t fix

Honesty saves time and money. New sealant won’t cure:

  • Structural movement beyond what the joints were designed for (that needs a structural engineer)
  • Concrete or masonry repairs along the arrises
  • Waterproofing layers buried beneath the sealant

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

Joints and surfaces we work on

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

Aftercare for building managers

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:

  • Record the sealant used and the date in the O&M file
  • Put movement joints on the planned maintenance inspection round
  • Keep scrapers and ploughs from dragging across joint sealant
  • Check joints after long freezing spells

Our workmanship on movement joints carries a 12-month guarantee. Record which product went into which joints in the building file so future maintenance isn’t guesswork.

Once debris packs a failed joint, the structure has nowhere to expand. The edges then take the pressure and start to spall and the reseal becomes an edge repair as well. Keeping the seal sound avoids all of that.

Accreditations

Trusted. Accredited. Insured.