
Forstal expansion joint sealing
Sealant work in Forstal for main contractors, managing agents and facilities managers: expansion and movement joint sealing in walls, decks and floors, quoted at a fixed price.
- Layers of sealant in a movement joint
- Debris jammed in movement joints
- Chipped joint edges on forklift routes
Expansion joint sealing for businesses in Forstal
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
About our expansion joint sealing in Forstal
We have been sealing expansion and movement joints for over 20 years for contractors, facilities managers and owners. CHAS accredited, Constructionline member, CSCS-carded applicators and five million pounds of public liability insurance. Each job is backed by a 12-month guarantee on the workmanship. We work on podiums and floor movement joints, blockwork control joints and cladding panel joints, and the failures we’re asked to look at most are water getting into the wall through a failed joint and chipped joint edges on forklift routes. Searching for sealant specialists in Forstal? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.
In and around smaller places like Forstal, the concrete floors we see are often in converted farm buildings, small workshops and storage units. Joints in those slabs take vehicles, trolleys and foot traffic, and need a filler or sealant to match.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.
- Location
- Forstal (ME20)
- Wider area
- Kent
- Cover
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026

When it isn’t the sealant
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Cracking or settlement that calls for an engineer’s assessment
- Joints too narrow for the movement, which need redesigning by the engineer
- Waterproofing layers buried beneath the sealant
Not sure which it is? You can speak to us on 01277 525 020 or email us and we’ll tell you honestly before you book.
Where we work in Forstal
- Cladding panel joints
- Blockwork control joints
- Precast concrete panel joints
- Podiums and floor movement joints
- Brickwork movement joints
- Car park decks and ramps
How the job changes by surface
Brickwork and blockwork joints
Brick and block edges need careful preparation. Faces are prepared and primed wherever the sealant maker calls for it, then seal and tool the joint.
Internal floor movement joints
Forklift and pallet-truck wheels break unsupported joint edges. The right filler or sealant for the traffic and movement protects them, and tell you if edges need repairing first.
Why deal with it now?
A torn seal left alone usually gets worse. Grit and water fill the gap and the material either side breaks up, so a reseal turns into an edge repair as well. Resealing early keeps the work to sealant. Older rural buildings around Forstal move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.
The product called for affects the cost, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site rules also count.
Why clients in Forstal choose us
- A fixed quote before work starts
- Over 20 years of commercial sealing
- Standard and matched colours in many product ranges
- CHAS accredited
See what affects the cost and our accreditations and insurance.
Also in Forstal
Floors, slabs and movement joints in Forstal
Forstal sits in one of the drier corners of the country, the South East. External joints still wait for dry conditions, while winter salting gets into any joint left open. Forstal lies roughly 29 miles out from central London. Distribution warehouses and industrial estates are common around the motorway corridors that serve the capital; their floors carry heavy traffic every shift.
For a school such as St Peter's Church of England Primary School, playground and building joints can be done in the holidays. A campus such as University for the Creative Arts, 2.2 miles to the south of Forstal, has long runs of movement joint in its buildings, decks and paving.
Forstal is about 3 miles north-west of Maidstone, in Kent. Any commercial site in Forstal is covered. 931 places across Kent fall within our area, Forstal among them. Our London page has more on work in that area, about 29 miles away.
We take on movement joints across the ME20 postcode area, whatever the building. Among the streets we cover are Beddow Way and Forstal Road. If your building is just outside Forstal, we cover Pratling Street (1 mile north-east), Eccles (1 mile north-west), New Hythe (2 miles west), Burham (2 miles north) and Larkfield (2 miles west). Further afield, our area takes in Maidstone (3 miles south-east), Sittingbourne (11 miles east), Dartford (15 miles north-west), Sevenoaks (13 miles west), Royal Tunbridge Wells (15 miles south-west) and Gravesend (10 miles north-west).
Around Forstal
Locally, jobs take us to sites close to Aylesford School, The Bush pub and Tyland Barn and the streets around them. The nearest railway station is Aylesford station, about 1.2 miles west of the centre. Other landmarks nearby include Medway megaliths (1 mile north) and Maidstone Hospital (2 miles south). Open spaces near Forstal include Boxley Hills and Burham Down.
Questions about Forstal
Is Mid Kent Shopping Centre, near Forstal, within your area?
Yes. We cover Forstal and the area around it, including industrial estates, business parks and retail parks such as Mid Kent Shopping Centre. To start, just phone 01277 525 020 or email the details over with the unit, the joints involved and your access times.
Is Forstal too small for you to travel to?
No. Small places get the same service as large ones. Our area covers London and the South East counties. Good photographs up front let us bring everything on the first visit.
Are you CHAS accredited?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and we will price the work to it, flagging anything that needs clarifying.
What site paperwork can you supply?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.
Can the building stay open while you work?
In most cases, yes. We phase the work so most of the building stays in use.
Can you quote from photos?
That depends on the size and complexity of the job. Straightforward work can often be priced from photographs and measurements, and bigger or more complex jobs typically get a visit.
Do you need expansion joint sealing in Forstal?
Sun, rain and frost age external movement joints. In time the bead chalks, stiffens and cracks and opens at the next temperature swing.
Most enquiries start with something like this:
- Expansion joints filled with dirt and stones
- Chipped joint edges on forklift routes
- Hardened, cracked sealant on exposed facades
- Previous reseals laid over old sealant
For a store at a site such as Mid Kent Shopping Centre, 1.2 miles south of Forstal, the service yard and goods-in area are where joints break down first.
Questions to ask before you book
- Who will actually carry out the work
- What the guarantee covers, and for how long
- Is the sealant right for the movement and the substrate?
- Their pre-qualification and accreditations
Doing it in-house
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.
Diagnose, treat, sign off
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Rural sites near Forstal may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.
- First the joints are inspected, widths measured and the type of failure noted.
- You receive a fixed quote stating the product and the movement it is rated for.
- Phasing is agreed so decks, floors or entrances can stay in use where needed.
- We strip the old sealant or filler and prepare each face until it’s sound and dry.
- Depth is controlled with backing, the faces are primed where the maker calls for it, then the bead is laid and tooled.
- Finished joints are inspected, the cure time confirmed and the 12-month guarantee applies.
Getting the site ready
- Let us know about inductions and permits
- Explain the parking and delivery arrangements
- Let building users know which areas are affected
Get a fixed quote
Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. The easiest way is to speak to us on 01277 525 020 or email drawings and photos.