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

Facade and window perimeter sealing in Flexford, Surrey

Planning work on a facade joint in Flexford? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Unsightly perimeter sealant on a visible elevation
  • Weathered joints at frame-to-structure perimeters
  • Cold air coming in at window perimeters
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Facade sealing for Flexford sites

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Facade sealing for commercial buildings in Flexford

A good facade joint depends on design as much as product. Joint width needs to match how far the joint moves and how far the sealant can stretch, and closed-cell rod sets the depth, keeping the bond to two faces, often at around 2:1 width to depth, as the manufacturer advises. Site teams most often ask us about hard, chalky sealant that no longer flexes and air leaks through failed facade joints, on window and door perimeters, shopfront frames and coping and flashing joints. For commercial sealant work in Flexford, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

Construction in and around smaller places such as Flexford is often barn conversions, small groups of houses or extensions to halls and schools. Each still needs a proper mastic package: window perimeters, facade joints and internal sealant to the specification.

Every job we finish is backed by a 12-month workmanship guarantee, in Flexford as everywhere else we work. If a joint we sealed fails because of how it was installed, we come back and put it right.

The Mastic Doctor team standing beside their branded vans outside an office building
Place
Flexford (GU3)
Wider area
Surrey
Cover
A 12-month guarantee
Price
A fixed quote before we start
Telephone
01277 525 020
Last updated
3 November 2026

From enquiry to sign-off

In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed before we move to the next. If others near Flexford need work, visits can be combined. You will have a fixed quote before work starts.

  1. We plan access and the order of elevations with the client.
  2. Weather and temperature are checked against the product’s limits.
  3. Each joint is cut out and the edges inspected.
  4. Faces are cleaned, primed where needed and backed.
  5. Sealant is gunned in and tooled hard onto both faces.
  6. Once signed off, the work carries our 12-month guarantee.

Before we start on site

  • Arrange parking or a loading space
  • Tell us your opening times and when work is allowed
  • Send any specification or drawings in advance

Quotes

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. For smaller jobs, photographs and a description will do.

Ask for a quote

Read more

Different surfaces, different methods

Cladding panel joints

On sealed panel systems, every joint keeps water out. We cut out failed joints along their full length and rebuild them with backing and a facade-grade sealant.

Brick and stone facades

On masonry, the sealant has to suit a porous, textured surface. Neutral-cure products are used because acetoxy types can mark some stone, with primer where its maker specifies.

Honest limits

Not every problem is a sealant problem, and we’d rather tell you before you spend money. It won’t fix:

  • Movement beyond what any sealant can handle
  • Replacing glass or failed glazing units
  • Specialist high-level access methods

If in doubt, phone 01277 525 020 or send details through our quote form and we’ll say what we think.

Where we work in Flexford

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

What we are called out for in Flexford

Adhesive failure, where the sealant peels away from one face, typically comes from poor preparation. Contamination, moisture or skipping the primer the maker specifies leave a weak bond, and the joint opens with the first real movement.

Any of the following is a good reason to get the joints checked over:

  • Failed sealant on precast panel joints
  • Weathered facade joints that have lost their grip
  • Discoloured or dirty facade joints
  • Draughts around frames and panels

Hospital estates such as Royal Surrey County Hospital (to the east of Flexford) tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan.

What your quote should include

  • How the existing material will be dealt with
  • Will RAMS and insurance details be available?
  • Their plan for phasing and protecting the area
  • Whether their applicators hold CSCS cards

Choosing a commercial sealant contractor

Cost factors for facade joints

Sealant work doesn’t have a standard rate, because every site is different. What we take into account:

  • Induction, permit and paperwork requirements
  • Phasing around occupants
  • Distance, for remote addresses
  • Whether old sealant has to be cut out first

There’s no price list, because the scope varies so much from one building to the next. Call for a quote.

Sending details for a quote

However big the job, these details speed things up:

  • How the joints are reached, and at what height
  • Photos of the joints, close up and from further back
  • Whether the building will be occupied during the work
  • The postcode of the building

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, ring 01277 525 020 or email drawings and photos.

Questions about Flexford

Is Flexford too small for you to travel to?

Not at all. Flexford is within our area. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.

Can you work on a hospital site such as Royal Surrey County Hospital?

Yes. We work in healthcare settings as well as offices and schools. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Do you seal facades in winter?

We can work through the year, but sealant needs a dry joint and temperatures within the product’s range. Cold, damp mornings can delay a start, and we build that into the programme.

How long do sealant joints last?

There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.

Will you just go over the old sealant?

No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.

How long does a typical visit take?

We plan the time on site around your programme and access. You will have an expected duration with the quote.

Do you use silicone for external joints?

It depends on the joint, the substrate and any specification. Specifications often refer to BS EN 15651-1 for facade sealants or BS EN 15651-2 for glazing.

Facade sealing around Flexford: points for this area

At about 31 miles from central London, Flexford is within reach of the capital. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, so mastic packages have to keep pace with busy programmes. Flexford sits in one of the drier corners of the country, the South East. Winter mornings still bring frost and condensation on frames and panels, so the external programme keeps a little slack.

New units and refits on sites such as Wanborough Business Centre (to the east of Flexford) need their panel and perimeter joints sealed to the specification. On a campus such as University of Surrey - Manor Park Campus (2.7 miles east of Flexford), new teaching buildings and residences are typically built and refurbished around the academic year.

Flexford is about 4 miles east of Aldershot, in Surrey. Any commercial site in Flexford is covered. Our Surrey coverage takes in 379 places, from busy centres to rural villages. Reading is covered too, around 19 miles from Flexford.

Business premises anywhere in GU3 are within our area for facade joints. Among the streets we cover are Christmaspie Avenue, Orchard Close and Cull's Road, and sites on any of them can send details for a fixed quote. Just outside Flexford, we also work in Christmas Pie (1 mile south), Wanborough (1 mile south-east), Normandy (1 mile north), Willey Green (1 mile north-east) and Wyke (1 mile north-west). Nearby towns on our patch include Guildford (4 miles east), Woking (7 miles north-east), Camberley (7 miles north), Farnham (6 miles south-west), Egham (14 miles north-east) and Walton-on-Thames (15 miles north-east).

What’s near Flexford

Locally, jobs take us to sites close to Ash Manor School, among other places. Flexford has its own railway station: Wanborough station. A little further out are Guildford Hospital (2.6 miles east) and Guildford Castle (4.3 miles east). The countryside around Flexford includes Ash Ranges and Hog's Back.

Map of Flexford © OpenStreetMap contributors

Site staff or a sealant specialist?

Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong normally costs more in the end than doing them right.

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.

Accreditations

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