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

Asheridge facade sealing

Commercial sealant work in Asheridge for contractors, FMs and building owners: facade joint and window perimeter sealing on commercial buildings, quoted at a fixed price.

  • Patch repairs that keep failing
  • Leaks at window and door perimeters
  • Cladding panel joints that have opened up
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Facade sealing near Asheridge

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

Facade sealing for commercial buildings in Asheridge

Our facade sealing work covers external facade joints, window and door perimeters, cladding panel joints and the perimeter joints where frames meet the structure for clients around Asheridge. Where sealant is the specified fix, we also take on coping and flashing joints. We work on shopfront frames, stone and brick facade joints and perimeter joints where frames meet the structure, and the failures we are asked to look at most are leaks at window and door perimeters and facade joints cracked through the middle. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Asheridge, that means joint design, primers and backing rod as standard.

In the countryside around places like Asheridge, conversion schemes put new frames into old stone, flint, brick or timber. A product that grips an irregular face, with a colour that suits the building’s character, is normally what’s needed.

Our workmanship is guaranteed for 12 months, wherever the site is. If a joint we sealed fails because of how it was installed, we come back and put it right.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Asheridge (HP5)
Region
Buckinghamshire
Cover
A 12-month guarantee
Quotes
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026

How a job runs

Occupied buildings need a little choreography. We sign and contain the area we are in, with routes through the building left open and move on in phases so staff and visitors can carry on around us. Smaller jobs around Asheridge can be grouped with others nearby. You will have a fixed quote before work starts.

  1. We look at the joints, the drawings and the access before pricing.
  2. Failed sealant is cut out along its full length.
  3. Both faces are cleaned and, where the product needs it, primed.
  4. Closed-cell rod fixes the depth, and the sealant grips two sides only.
  5. A facade-grade sealant rated for the movement goes in, tooled to a concave profile.
  6. We walk the finished joints with you before handing over.

Getting the site ready

  • Tell us which areas need to stay in use
  • Explain the parking and delivery arrangements
  • Have the specification and drawings to hand

Get a fixed quote

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, phone 01277 525 020 or send details through our quote form.

Ask for a quote

Related advice

How the job changes by surface

Precast concrete panels

Precast panel joints have to absorb thermal and structural movement. We use a sealant with the right movement capability, set over backing rod with primer where the product requires it.

Render and coated surfaces

Paintable sealants exist for joints that will be coated. We confirm the product with you before starting.

Building and refurbishing in Asheridge

The South East is one of the drier parts of the UK. Winter mornings still bring frost and condensation on frames and panels, so external mastic is timed for workable conditions and agreed with the site manager. Central London is about 28 miles from Asheridge. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, and main contractors there need mastic that keeps to the programme.

For contractors refurbishing units at places like Waterside Business Park, 2.5 miles south-east of Asheridge, the mastic covers cladding panels, roller-door and window perimeters. With historic properties like Cholesbury Manor House (1.7 miles north of Asheridge) in the area, refurbishment work often meets old masonry that needs compatible sealants.

Asheridge is about 2 miles north-west of Chesham, in Buckinghamshire. We send applicators to Asheridge for facade joints, handled exactly as we handle every other area. 308 places across Buckinghamshire fall within our area, including Asheridge. We also cover Reading, some 24 miles away.

Postcode districts covered here: HP5. Streets here include Widmore Close and Braziers End. Sites close to Asheridge are covered too, including Chartridge (1 mile south-west), Bellingdon (1 mile north), Hawridge (1 mile north), Pond Park (1 mile south-east) and Heath End (2 miles north-east). Bigger towns within reach include Aylesbury (10 miles north-west), High Wycombe (9 miles south-west), Marlow (12 miles south-west), Amersham (4 miles south-east), Beaconsfield (9 miles south) and Chalfont St Peter (9 miles south).

Near you in Asheridge

Recent enquiries here include premises near Chiltern Hills Academy and The Blue Ball pub, among other places. Asheridge’s nearest station is Great Missenden station, roughly 3.6 miles south-west of the centre. Well-known places in the area include Hawridge Court (1 mile north-east) and Chiltern Hospital (3.7 miles south-west). Green spaces nearby include Sands Bank and Pavis Wood.

Map of Asheridge © OpenStreetMap contributors

Why act early in Asheridge

Each spell of rain drives water past a failed facade joint. The damage builds out of sight: wet linings, rusting fixings, staining and spoiled finishes. Resealing early costs far less than repairing what the water reaches. One visit to deal with every failing joint makes more sense than several trips to a place like Asheridge, rather than one at a time. Send photos of each area and we’ll quote for the lot.

Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.

Why appoint us

  • Products installed to the manufacturer’s instructions
  • Work carried out by CSCS-carded applicators
  • Sealing commercial buildings since 2005
  • CHAS accredited

Take a look at our cost guide and our accreditations.

When it isn’t the sealant

Our job is the joint, not everything around it. On its own, sealant can’t deal with:

  • Cracked or spalling substrates that need repair before sealing
  • Joints whose design needs changing by the specifier
  • Installing or repairing glazing systems

If you are not sure, just call the office on 01277 525 020 or use the quote form and we will give you a straight answer before you book.

Where we work in Asheridge

  • Perimeter joints where frames meet the structure
  • Shopfront frames
  • Cladding panel joints
  • Stone and brick facade joints
  • Coping and flashing joints
  • Window and door perimeters

Asheridge: questions and answers

Is a smaller place like Asheridge outside your area?

Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Would you work within a site like Chiltern Hospital?

Yes, healthcare and care buildings are part of our work. We follow the site’s permits, sign-in and infection-control procedures in every area.

How is access to upper-level joints handled?

Access is planned with you before we quote. Let us know what access is in place or planned, and the quote will reflect it.

Can one quote cover more than one building?

Yes. Several buildings can share a single quote, with one point of contact.

What site paperwork can you supply?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.

When can the area be used after sealing?

We’ll confirm how long the chosen product needs to cure, and flag anything to keep off until it has cured.

Can you fit around our working hours?

We’re in the office from 8am until 5pm, Monday to Friday. Tell us your site hours and access windows and the work will be fitted around them.

Signs you need facade sealing in Asheridge

Overlaying old sealant is a common shortcut that fails quickly. Cured silicone won’t accept a new silicone bead, so the new bead peels away within a season or two.

Things that typically lead to an enquiry:

  • Gaps between rainscreen or cladding panels
  • Old perimeter mastic that has dried out
  • Damp patches beside frames after rain
  • Facade joints cracked through the middle

On a campus such as Buckinghamshire New University, 3.5 miles south of Asheridge, new teaching buildings and residences are typically built and refurbished around the academic year.

What to look for in a quote

  • Can the work be phased to keep areas open?
  • How the existing material will be dealt with
  • The terms of the workmanship guarantee
  • Their pre-qualification and accreditations

Choosing a commercial sealant contractor

Should maintenance staff do it?

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.

Redoing a failed joint normally costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.

Accreditations

Trusted. Accredited. Insured.