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

Expansion and movement joint sealing in Ilmer, Buckinghamshire

Our CSCS-carded applicators take on expansion and movement joint sealing in walls, decks and floors in Ilmer and the surrounding area. Send details for a fixed quote.

  • Expansion joints split through the centre of the bead
  • Car park joints leaking onto vehicles below
  • Spalled or broken joint edges in floors and decks
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Expansion joint sealing near Ilmer

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

On site: what to expect

Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself usually takes a day or so for a modest run of joints, and longer where decks, ramps or floors are done in phases, and we clear our waste as we work. For a building around Ilmer, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.

  1. We assess the joints on site or from photos, noting widths and how each has failed.
  2. You receive a fixed quote stating the product and the movement it is rated for.
  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. We check each joint with you, confirm the cure time and sign off under our 12-month guarantee.

Getting the site ready

  • Send your site hours and access windows
  • Move anything stored against the joints
  • Point out parking and an unloading spot

Get a fixed quote

Send us photographs, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.

Get a price

Read more

About our expansion joint sealing in Ilmer

Brickwork and blockwork walls have vertical movement joints at intervals that most people only notice when the sealant has gone. Failed sealant here lets rain into the wall and can leave the joint full of debris. The old seal comes out, backing goes in and a sealant with the right movement class is applied. If you are dealing with previous reseals laid over old sealant and expansion joints filled with dirt and stones, we can help, on cladding panel joints, blockwork control joints and podiums and floor movement joints alike. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Ilmer, preparation and product choice get the time they need.

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

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Ilmer (HP27)
Region
Buckinghamshire
Cover
12 months on our workmanship
Price
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026

What sealant work can’t fix

Before quoting, we check that sealant is the right answer. It isn’t the answer for:

  • A joint that has to be widened or re-detailed before it can work
  • Proprietary pre-formed expansion joint systems
  • Broken or spalled joint edges, which need repairing before any sealant goes in

If you are not sure, just ring 01277 525 020 or send photos by email and we’ll give you a straight answer.

Surfaces we seal

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

Common questions from Ilmer clients

Must our site in Ilmer stop work while the joints are done?

Typically not: we work in sections and hand each one back once it has cured. Tell us which hours and entrances we can use and we will plan from there.

Is Ilmer too far out for you?

No. Places such as Ilmer are covered as much as the big towns. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.

What will the job cost?

That depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a quote.

Can you send site paperwork?

Each site asks for different documents, so list what you need, whether RAMS, insurance or CSCS details, and we will confirm with the quote.

Do you offer coloured sealant?

That depends on the product specified. Some ranges offer many colours, others very few, so we’ll confirm the colours available for the specified product with the quote.

Do you work to architects’ specifications?

Yes. Send it with your enquiry, and we will price the work to it.

Which sealant will you use?

Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

Where floor joints take the most wear near Ilmer

Rainfall across the South East, Ilmer included, is lower than in many 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. Ilmer lies roughly 38 miles out from central London. The South East has large numbers of industrial estates and warehouses along the motorway corridors.

Schools like Longwick Church of England Combined School often have long brick elevations with movement joints that age quietly.

Ilmer is about 4 miles east of Thame, in Buckinghamshire. Ilmer sits inside our coverage and the rest of Buckinghamshire, with the same fixed quotes and 12-month guarantee as everywhere else. Our Buckinghamshire coverage takes in 308 places, large and small. Sites around Oxford have their own page, about 15 miles away.

If you need expansion joint sealing in HP27, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Sites close to Ilmer are covered too, including Longwick (1 mile south-east), Holly Green (1 mile south), Forty Green (1 mile south), Owlswick (1 mile east) and Pitch Green (2 miles south). A short drive away, we cover Aylesbury (6 miles north-east), High Wycombe (10 miles south-east), Chesham (12 miles east), Marlow (13 miles south), Amersham (13 miles east) and Beaconsfield (14 miles south-east).

Near you in Ilmer

The closest station to Ilmer is Monks Risborough station, roughly 2.5 miles east. Nearby you’ll also find Thame Community Hospital (3.6 miles west) and Great Kimble Dial Hill (3.4 miles east). For a walk, there’s Beacon Hill and Snakemoor.

Map of Ilmer © OpenStreetMap contributors

Common problems we fix in Ilmer

Car park decks and floors face loads that walls never see. Tyres and wheels press on the edges and the sealant, while de-icing salts and grit attack the seal. The product has to be suited to the traffic.

Most enquiries start with something like this:

  • Damp inside where a wall movement joint has failed
  • Arrises breaking up along floor joints
  • Hardened, cracked sealant on exposed facades
  • Water dripping through deck or ramp joints

For an estate such as The Paddocks Hospital, 2.8 miles to the east of Ilmer, the joints in ramps, decks and long building elevations all need attention over time.

Before you book anyone

  • What the guarantee covers, and for how long
  • Whether primer will be used where the manufacturer specifies it
  • Is the sealant right for the movement and the substrate?
  • Whether their applicators hold CSCS cards

Questions to ask before you appoint anyone

What the job involves on each surface

Joints between different materials

Different materials meeting at a joint rarely move in step. The product must bond to both substrates and cope with the movement.

Concrete and precast panel joints

Precast and concrete panel joints move daily. We use a sealant classed for the movement, laid over backing to depth.

Leave it or put it right?

On a car park, resealing joints in phases keeps the deck open. Phased work by bay or zone lets the rest stay in use. We agree phasing with you before work starts. For buildings around smaller places like Ilmer, 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.

The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site requirements come into it too.

Why us?

  • Fully insured, including public liability cover
  • A range of standard colours, depending on the product
  • Colour agreed before work starts
  • A fixed quote before work starts

See what affects the cost or our accreditations.

General trades versus a specialist

A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.

Accreditations

Trusted. Accredited. Insured.