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

Expansion and movement joint sealing in Furnace Green, West Sussex

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

  • Water getting into the wall through a failed joint
  • Layers of sealant in a movement joint
  • Movement joints with split or torn sealant
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
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
Constructionline member
£5m PL insurance

Expansion joint sealing for businesses in Furnace Green

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

Owners, agents and contractors

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.

We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Furnace Green can sit alongside others in a wider programme across West Sussex.

About our expansion joint sealing in Furnace Green

We’ve been sealing expansion and movement joints for over 20 years for contractors, facilities managers and owners. Our applicators are CSCS-carded, we are CHAS accredited and a Constructionline member, and we carry five million pounds of public liability insurance. Workmanship is backed by our 12-month guarantee. We work on blockwork control joints, podiums and floor movement joints and cladding panel joints, and the failures we are asked to look at most are spalled or broken joint edges in floors and decks and water getting into the wall through a failed joint. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Furnace Green, that means joint design, primers and backing rod as standard.

Rural business units around smaller places such as Furnace Green often have new slabs laid inside older buildings. Saw-cut and construction joints in those floors need the right filler or sealant for the forklifts and trolleys that use them.

We stand by our work with a 12-month guarantee. That covers our preparation and application, and we come back if anything isn’t right.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Furnace Green (RH10)
Wider area
West Sussex
Cover
12 months on our workmanship
Price
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026

Expansion joint sealing around Furnace Green: what changes locally

At least three named trading, business or retail sites lie within about 3 miles of Furnace Green. Their warehouses, yards and car parks are exactly where joints take the most punishment. The South East is one of the drier parts of the UK. Outside joints in yards and car parks still have to be dry before sealing, while winter salting gets into any joint left open.

At a retail site such as County Mall, which lies north-west of Furnace Green, trolleys, cages and cars run over floor and slab joints all day. Across sites such as Worth Corner Business Centre, 1.3 miles to the north-east of Furnace Green, floor and movement joints can be sealed in phases so units keep working.

Furnace Green is about 2 miles south-east of Crawley, in West Sussex. Any commercial site in Furnace Green is covered, whether it’s a single job or part of a planned programme. We work across 373 places in West Sussex. There’s a separate page for Brighton, about 18 miles away.

Postcode districts covered here: RH10. For a building on Marion Road, Holder Road and Bolton Road or nearby, send details and we’ll quote for movement joints. If your building is just outside Furnace Green, we cover Pease Pottage (2 miles south-west), Worth Abbey (2 miles east), Balcombe Lane (2 miles south-east), Balcombe (3 miles south-east) and Staplefield (4 miles south). Further afield, our area takes in Horsham (7 miles west), Haywards Heath (7 miles south), Burgess Hill (10 miles south), East Grinstead (7 miles east), Billingshurst (14 miles south-west) and Bewbush (3 miles west).

Around Furnace Green

Around Furnace Green, our work takes us to commercial buildings near Oriel High School, The Charcoal Burner pub and Tilgate Park. The nearest railway station is Three Bridges station, about 1.2 miles north. Well-known places in the area include Crawley Museum (1.8 miles north-west) and Crawley Hospital (2 miles north-west). For a walk, there’s Tilgate Lake.

Map of Furnace Green © OpenStreetMap contributors

Why act early in Furnace Green

Combining joint work with other maintenance reduces set-up costs. Leaking joints need sealing now. Urgent joints now, the rest later, is often the sensible plan. A failed joint lets water into a building whatever its size. Catching it early means a reseal rather than repairs.

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.

Why appoint us

  • CSCS-carded applicators
  • Specification-led, product-correct work
  • A Constructionline member, so easy to vet
  • Old sealant cut out, never sealed over

Read our cost guide and our accreditations and insurance.

Questions about Furnace Green

Is hospital work, at somewhere like Crawley Hospital, something you do?

Yes, provided the work is planned with the site’s estates team. We follow the site’s permits, sign-in and infection-control procedures in every area.

Should we reseal the joints in an older industrial floor in Crawley?

In the majority of cases it is, if the edges haven’t broken up too far. We will look at the joints, recommend a product for the traffic and movement, and say if any edges need repair before sealing.

How long does movement joint sealing take?

It normally takes a few hours to several weeks, depending on how many metres of joint there are and how much old sealant or filler needs removing, with phasing where areas must stay open. Cure time before reopening is confirmed on the day.

Can you quote from photographs?

Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we’ll arrange a visit.

Why do our movement joints keep failing?

Most often the movement is too much for the product or the joint width. That’s why we check width, depth and movement class before quoting.

Can weather delay the job?

It can, when the joints are outside. 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.

Can staff carry on working while you are here?

In the majority of cases, yes. We phase the work so most of the building stays in use, with each area protected and signed.

From enquiry to sign-off

A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. The work itself 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 our waste is bagged and taken away as we go. What matters most for a job in Furnace Green is a clear list of what needs doing. You will then get a fixed price for the work.

  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, and we tell you if any edges need repairing first.
  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. Each joint is inspected and handed over with our 12-month guarantee.

Getting the site ready

  • Tell us which areas need to stay in use
  • Tell us what induction or permit system the site runs
  • Send any specification or drawings in advance

Ask for a quote

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, ring 01277 525 020 or email us.

Get a quick quote

Related advice

Different surfaces, different methods

Joints between different materials

Junctions between brick and render, or concrete and cladding, move independently. We choose a sealant that grips both faces.

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.

What we’re called out for in Furnace Green

Car park decks and floors face loads that walls never see. Wheel loads stress the sealant and the arrises, while de-icing salts and grit attack the seal. A sealant that isn’t trafficable won’t last there.

Common reasons buildings call us in:

  • Water dripping through deck or ramp joints
  • Water getting into the wall through a failed joint
  • Joints packed with grit and debris
  • Chipped joint edges on forklift routes

In a school such as Brook Infant School, movement joints in brick, block and hall floors tend to be forgotten until they leak.

What your quote should include

  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Who will actually carry out the work
  • How they’ll work around occupants
  • What level of public liability insurance do they hold?

Our contractor checklist

How the quote is worked out

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

  • How accessible the joints are
  • Induction, permit and paperwork requirements
  • Which sealant the job calls for
  • Travel to remote or island sites

There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote and we’ll price your job on its own details.

What to include in your enquiry

Good information means a firmer quote. When you get in touch, include:

  • Anything awkward about access or site hours
  • The postcode of the building
  • Photos of the joints, close up and from further back
  • The type of building and who uses it

To get a fixed quote, ring 01277 525 020 or email the details over with the site address and an outline of the work. Our quote form is another easy route.

Accreditations

Trusted. Accredited. Insured.