Buckinghamshire · England

External & façade joints in Hardwick, Buckinghamshire

Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Hardwick and across Buckinghamshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Gaps where render, brick and frames meet
  • Water getting into walls through failed joints
  • Joints with sealant missing in places

External mastic in Hardwick

When it isn’t the sealant

We’ll always be straight with you, so here’s what new sealant won’t do:

  • Failed render or damaged cladding panels
  • Damp from another source, such as a leaking gutter or a bridged damp-proof course
  • Cracks in the bricks or render themselves, away from the joints

If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.

Joints and surfaces we work on

  • Joints between brick and frames
  • Copings & trims
  • Façade panels
  • Brickwork movement joints
  • Render & cladding joints
  • Concrete & block

External mastic for homes and businesses in Hardwick

External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant rarely last long. We take the old material out and do it properly. If you have weathered mastic that no longer stretches and damp patches traced to an open external joint, we can put it right, on render & cladding joints, brickwork movement joints and copings & trims alike.

Outside joints can only be sealed when they’re dry, so work in Hardwick is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.

All our work is covered by our 12-month guarantee, wherever you are in Buckinghamshire.

Mr Mastic applicators lined up beside the company vans, one holding a sealant gun
Where
Hardwick (HP22)
Wider area
Buckinghamshire
Cover
One year on every job
Quotes
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026

Hardwick: your questions answered

Is Hardwick in your area for external mastic?

Yes, Hardwick is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.

Will you come out to Hardwick?

Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

How long should I leave it?

It depends on the product and the conditions. We tell you how long to leave it before we go.

Can a movement joint be filled with mortar?

No, not where the gap is a movement joint. Filling it with mortar defeats its purpose. A flexible sealant is the right fill.

Are you ARBOMaster approved?

Yes. We are approved under the ARBOMaster scheme.

Can tenants book the work?

Of course. Check with your landlord; we can send the quote to them too.

Should I try DIY first?

Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

Do you do commercial work?

Yes, regularly. Larger jobs can be planned room by room or area by area.

DIY versus a professional finish

A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.

If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.

What we do, step by step

On the day, we start by going over the job with you. Surfaces next to the work are protected before any work begins. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Somewhere like Hardwick needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  1. First we look over the joints with you, agree which to renew and talk through access.
  2. The old mastic and anything lodged in the joint is removed.
  3. We clean both faces of the joint and prime them where the product calls for it.
  4. Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
  5. A flexible exterior sealant is applied and tooled in a colour to suit the wall.

Getting ready for the visit

  • Let us know about earlier repairs to the joints
  • Mention any sign-in or site rules at work premises
  • Try not to wet indoor joints just before the visit

How to get a quote

If you’re in Hardwick and need external mastic, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.

Get a quick quote

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What external mastic looks like in Hardwick

With historic houses such as Waddesdon Manor (about 4.8 miles west) nearby, there’s older building stock in the area around Hardwick as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

For an older house near a landmark such as Church of St Mary, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you let a flat or house near Aylesbury Vale Parkway station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. Managing a site like Old School Room Chapel? Then larger buildings have long runs of movement joint that eventually need resealing.

Hardwick is about 3 miles north of Aylesbury, in Buckinghamshire. Jobs in Hardwick get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 263 places across Buckinghamshire. There’s also a page for Oxford, roughly 19 miles from Hardwick.

Work in HP22 works the same way as everywhere else we cover. We also cover Weedon (1 mile south-east), Whitchurch (1 mile north), Oving (2 miles north-west), Pitchcott (2 miles north-west) and Watermead (2 miles south-east). We also work in nearby towns such as Aylesbury (3 miles south), Chesham (14 miles south-east), Buckingham (11 miles north-west), Elmhurst (3 miles south), Southcourt (4 miles south) and Princes Risborough (10 miles south).

Landmarks near Hardwick

Typical jobs here are in homes near The Bell pub, among other places. The closest station to Hardwick is Aylesbury Vale Parkway station, roughly 2.6 miles south-west of the centre. Nearby you’ll also find Friars Square (3.5 miles south) and Roald Dahl Children's Gallery (3.3 miles south).

Map of Hardwick © OpenStreetMap contributors

Landlord and commercial work in Hardwick

Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.

Letting agents and landlords in Hardwick can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.

Different surfaces, different methods

Cladding and façade panels

Metal and composite panels move a lot with temperature, so the joint sealant has to cope with frequent movement. We choose the product to suit.

Copings and trims

Copings expand and contract through the day, so the joints need a sealant that stays flexible.

What happens if it’s left?

Low-modulus sealants stretch easily, so they put less strain on the joint edges. That protects surfaces like brick, render and concrete. Too stiff a sealant can pull at the edges and break them. Older cottages and farmhouses around Hardwick can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or drop us an email.

Why book with us

  • Tidy, careful work
  • 20+ years of sealant experience
  • Fully insured
  • Experience in homes, commercial sites and hotels

Read what affects the cost or our reviews.

Quotes for external mastic in Hardwick

The quote reflects the job in front of us. We take into account:

  • Whether old sealant or filler has to be cut out
  • How easy the joints are to reach
  • How many rooms, windows or areas are involved
  • Which sealant suits the joint

A failed joint rarely gets cheaper to fix by waiting. If you’re not sure whether it needs doing, call 0345 464 0079 or send us an email for an honest opinion and a quote.

Helping us quote

Photos by email are helpful but not essential. Please mention:

  • The problem you’ve noticed
  • Whether it has been sealed before
  • Pictures of the joints, sent by email
  • Access, such as stairs, a lift or height

For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job