Expansion joint sealing in Askett
Planning work on a movement joint in Askett? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Rain penetration at brick or block movement joints
- Movement joints with split or torn sealant
- Layers of sealant in a movement joint
Expansion joint sealing for Askett sites
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Your questions answered
Must our site in Askett stop work while the joints are done?
Rarely. Work is phased around your operations. Tell us which hours and entrances we can use and we will plan from there.
Is Askett too far out for you?
Not at all. Askett is within our area. We work across Greater London and the South East. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.
What exactly is a movement joint?
It’s a deliberate gap that lets the structure move without cracking. Expansion joint is a name often used for the same thing, and either way it needs a sound seal.
Can you fit around our working hours?
Give us your site hours and any access windows in your enquiry, and we’ll plan around them. You can reach the office between 8am and 5pm, Monday to Friday.
Do your applicators hold CSCS cards?
Yes. We use CSCS-carded applicators.
How do I request a quote?
The quote form is the simplest route, though you can also call the office on 01277 525 020 or email a schedule or drawings. Photos, drawings or a joint schedule help us quote quickly.
Do you work to architects’ specifications?
Yes. Send it with your enquiry, and the quote will be based on it, flagging anything that needs clarifying.
How we handle expansion joint sealing in Askett
Width, depth and product all have to work together. Joint width must suit the movement and the movement class of the sealant, and depth is controlled using closed-cell backing rod, or bond-breaker tape in shallow joints. For wider joints, many sealant makers recommend a width-to-depth ratio, often around 2:1 and the bead bonds to the sides, never the back. We work on car park decks and ramps, precast concrete panel joints and blockwork control joints, and the usual reasons a site gets in touch are layers of sealant in a movement joint and car park joints leaking onto vehicles below. Searching for sealant specialists in Askett? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.
In and around smaller places like Askett, the concrete floors we see are often in converted farm buildings, small workshops and storage units. Whether it’s a farm store turned workshop or a storage unit, the joints need a product that suits the traffic.
Every job is signed off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.
- Place
- Askett (HP27)
- Wider area
- Buckinghamshire
- Guarantee
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Should maintenance staff do it?
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.
What else we do in Askett
Different surfaces, different methods
Cladding panel joints
Metal and composite panels shift considerably as temperatures change. A sealant with the right movement class is chosen, and we will confirm the colours available for the specified product.
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.
When to call us in Askett
Three-sided adhesion is a common cause of early failure. Sealant fixed to the base and sides can’t flex, so it tears so backing is set before sealing.
Typical triggers for a call:
- Rain penetration at brick or block movement joints
- Car park joints leaking onto vehicles below
- Previous reseals laid over old sealant
- Expansion joints split through the centre of the bead
Schools like Monks Risborough CofE Primary School often have long brick elevations with movement joints that age quietly.
What your quote should include
- How the existing material will be dealt with
- Will RAMS and insurance details be available?
- Who will actually carry out the work
- How long is the guarantee, and what does it include?
Traffic, movement and joints around Askett
Rainfall across the South East, Askett included, is lower than in many parts of the UK. External slab and deck joints still need a dry, clean joint to seal, and where de-icing salt is spread in winter, open joints let it in. Askett is about 35 miles 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.
Large sites such as The Paddocks Hospital (0.8 miles south of Askett) have car parks, service roads and long elevations with movement joints in brick and panels.
Askett is about 5 miles south of Aylesbury, in Buckinghamshire. We send applicators to Askett for movement joints. Askett is one of 308 places we cover in Buckinghamshire. Oxford is covered too, some 18 miles away.
Business premises anywhere in HP27 are within our area. We cover commercial and managed buildings on Askett Village Lane, Old Manor Close and Askett Lane and the roads nearby. Just outside Askett, we also work in Monks Risborough (1 mile south-west), Lower Cadsden (1 mile south-east), Whiteleaf (1 mile south-east), Great Kimble (1 mile north-east) and Meadle (1 mile north-west). Further afield, our area takes in Aylesbury (5 miles north), High Wycombe (8 miles south), Chesham (9 miles east), Marlow (12 miles south), Amersham (10 miles south-east) and Beaconsfield (12 miles south-east).
Near you in Askett
We work on buildings around The Three Crowns pub and Princes Risborough School and the streets around them. For rail, the closest station is Monks Risborough station, about 0.5 miles south-west of the centre. A little further out are Stoke Mandeville Hospital (4.1 miles north) and Great Kimble Dial Hill (0.8 miles north-east). Green spaces nearby include Beacon Hill and Brush Hill Local Nature Reserve.
What sealant work can’t fix
Some faults sit outside our scope, and we say so rather than covering them up:
- Cracking or settlement that calls for an engineer’s assessment
- Failed waterproofing membranes on podiums, roofs or decks (a waterproofing specialist’s job)
- Concrete or masonry repairs along the arrises
If in doubt, call the office on 01277 525 020 or send photos by email and we will say what we think before you book.
Where we work in Askett
- Brickwork movement joints
- Podiums and floor movement joints
- Car park decks and ramps
- Precast concrete panel joints
- Blockwork control joints
- Cladding panel joints
Diagnose, treat, sign off
Occupied buildings need a little choreography. The work area is signed and kept contained, keep walkways clear and move on in phases so staff and visitors can carry on around us. For work around Askett, we aim to finish in one visit, so photos and measurements up front really help. Then the right materials arrive with us.
- We look at the joints, their width and how they’ve failed.
- Next, we fix a price and confirm the sealant we propose for the movement.
- Old sealant and filler are cut out and the joint faces cleaned back to sound material, and we tell you if any edges need repairing first.
- Closed-cell backing rod is set to depth, or bond-breaker tape in shallow joints.
- Primer goes on where the manufacturer specifies it, followed by the sealant, which is then tooled off.
- We check every joint before sign-off, and the work carries our 12-month guarantee.
Getting the site ready
- Clear stock, furniture or equipment away from the joints
- Share the asbestos register for older buildings
- Tell staff and tenants when we’ll be in
Request a quote
Send us photos, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.
Read more
Keeping the joints sound
A few simple habits keep the new joints working:
- Plan racking layouts so feet don’t land on a joint
- Keep traffic off new joints until the cure time is up
- Note which joints were done, when, and with what
- Include every elevation and deck joint in periodic inspections
Our workmanship on movement joints carries a 12-month guarantee. Record which product went into which joints in the building file.
Unsupported floor joint edges spall under forklift and pallet-truck wheels. Broken arrises jolt trucks, loads and drivers, and the damage spreads along the joint. Sealing early protects the edges.