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

Facade Sealing contractors in Terriers

Sealant work in Terriers for main contractors, managing agents and facilities managers: facade joint and window perimeter sealing on commercial buildings, with a fixed quote first.

  • Draughts around frames and panels
  • Sealant pulling away from frames or panels
  • Old perimeter mastic that has dried out
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS accredited
£5m public liability

Facade sealing for Terriers sites

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Work for main contractors and building owners

Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end.

Facade sealing in Terriers

A good facade joint depends on design as much as product. The width has to suit the expected movement and the sealant’s movement capability, and closed-cell rod sets the depth, keeping the bond to two faces. If you have gaps between rainscreen or cladding panels and previous reseals run over old sealant, we can help, whatever the surface. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Terriers, preparation and product choice get the time they need.

In a smaller place such as Terriers, construction tends to mean small housing schemes, conversions and extensions to community buildings. Even a small site needs its perimeter and facade joints sized, backed and sealed properly.

Our workmanship is guaranteed for 12 months, wherever the site is. If our installation lets you down in that time, we return and fix it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Terriers (HP13, HP15)
Wider area
Buckinghamshire
Guarantee
12 months on our workmanship
Quote
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026

Facade sealing in Terriers: the local picture

Rainfall across the South East, Terriers included, is lower than in many parts of the UK. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so we time external mastic for dry faces and agree it with the site team. Terriers is about 29 miles from central London. Towns within reach of London tend to keep building, from flats to offices and schools, and main contractors there need mastic that keeps to the programme.

New wings at hospitals like Wycombe General Hospital, 1.4 miles to the south-west of Terriers, bring long runs of window and panel joints to seal. Hotels like Red Lion Hotel (1.1 miles south-west of Terriers) rarely close for long, so refurbishment mastic is phased floor by floor.

Terriers is about 1 mile north-east of High Wycombe, in Buckinghamshire. Terriers sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Across Buckinghamshire, 308 places are covered, including Terriers. Our Reading page has more on work in that area.

Postcode districts covered here: HP13 and HP15 for facade joints. For a building on Terry Road, Perth Road and Green Road or nearby, we can quote for facade joints. Just outside Terriers, we also work in Totteridge (1 mile south-east), Four Ashes (1 mile north), High Wycombe (1 mile south-west), Micklefield (1 mile south-east) and Hazlemere (1 mile north-east). Bigger towns within reach include Aylesbury (13 miles north), Chesham (7 miles north-east), Marlow (5 miles south), Amersham (6 miles north-east), Beaconsfield (4 miles south-east) and Chalfont St Peter (8 miles east).

Near you in Terriers

In Terriers, that means premises near The Tower, The Dolphin Eye pub and Highworth Combined School and Nursery, among other places. Terriers’s nearest station is High Wycombe station, roughly 1 mile south-west of the centre. Nearby you will also find Hospital of St John the Baptist (1.1 miles south) and High Wycombe Castle (1 mile south-west). Green spaces nearby include Gomm's Wood.

Map of Terriers © OpenStreetMap contributors

Common problems we fix in Terriers

A frequent fault is a bead stuck to the joint’s rear face as well as its sides. Without rod or bond-breaker tape, the bead is held back and rips when the facade moves.

These are often picked up first by site or facilities staff:

  • Hard, chalky sealant that no longer flexes
  • Perimeter joints where frames meet the structure
  • Gaps between rainscreen or cladding panels
  • Staining on stone next to old sealant

University estates such as Buckinghamshire New University (1.2 miles south-west of Terriers) tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal.

Questions to ask before you book

  • How the joint faces will be prepared and primed
  • Proof of insurance
  • How they handle RAMS and site documents
  • What the guarantee covers, and for how long

Choosing a commercial sealant contractor

Site staff or a sealant specialist?

Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

What sets the cost

We price every job individually. The things that drive the figure:

  • How much there is to seal
  • Induction, permit and paperwork requirements
  • Backing rod, priming and other preparation
  • Access and working height

The product called for affects the cost, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.

Sending details for a quote

Whether it’s one area or a whole building, the same details help:

  • Access details, including height
  • Where the site is, with the postcode
  • Your programme or deadline
  • The product your specification calls for

If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.

How a job runs

We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. Work in places the size of Terriers is planned as a single visit where we can. Clear photos and measurements help us bring the right products.

  1. We start with photos, drawings or a visit to see the joints and agree access.
  2. We confirm the joint type, movement and the specified product.
  3. The existing bead comes out in full.
  4. Primer goes on where the product data asks for it.
  5. Backing rod is fitted and the new sealant gunned in and tooled.
  6. The finished joints are checked with you.

Getting the site ready

  • Tell us your opening times and when work is allowed
  • Let building users know which areas are affected
  • Let us know about inductions and permits

Ask for a quote

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, phone 01277 525 020 or email drawings and photos.

Get a price

Related advice

Terriers: questions and answers

Could you schedule work at a campus like Buckinghamshire New University for the vacation?

Yes. Education sites typically want the work in vacations or in phases during term, and we plan to suit. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Is a hospital such as Wycombe General Hospital somewhere you can work?

Yes, provided the work is planned with the site’s estates team. We follow the site’s permits, sign-in and infection-control procedures in every area.

Is old mastic on our building likely to contain asbestos?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. The dutyholder’s asbestos register should be checked first; if it’s suspected, work stops until it has been tested. Removal of asbestos isn’t something we do.

Do you use silicone for external joints?

The product follows the joint’s movement, the surfaces and the specification. BS EN 15651 Parts 1 and 2 cover facade and glazing sealants, and specifications often name them.

Do you hold CHAS accreditation?

Yes. Mastic Doctor is CHAS accredited and a Constructionline member.

Is any job too small?

Small jobs are welcome alongside larger packages. Photos and a description are enough to start.

Will rain stop the work?

Rain and frost can pause external sealing. The programme allows for it and we tell you if the forecast changes things as the work goes on.

Why it’s worth doing now in Terriers

Failed joints let in more than water: draughts around frames add to heating costs and complaints. Resealing deals with the draught as well as the leak. Over time, UV, weather and movement wear any sealant out. Replacing it before it fails keeps water out.

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote and we will explain how it’s made up.

Why us?

  • One number for every site we cover
  • Sealing commercial buildings since 2005
  • Constructionline member for supplier checks
  • Fixed quotes based on photos, drawings or a visit

Take a look at what affects the cost and our accreditations and insurance.

Accreditations

Trusted. Accredited. Insured.