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

Hookwood facade sealing

We carry out facade joint and window perimeter sealing on commercial buildings in Hookwood and the surrounding area. Send details for a fixed quote.

  • Weathered facade joints that have lost their grip
  • Failed sealant on precast panel joints
  • 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
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
Constructionline member
£5m PL insurance

Facade sealing in Hookwood

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

When to call us in Hookwood

The wrong product causes its share of trouble: acetoxy-cure silicone may mark stone or corrode certain metals, and an interior product won’t last outdoors. Most external joints call for a neutral-cure, facade-grade sealant.

Look out for the following:

  • Water coming in around window frames
  • Cladding panel joints that have opened up
  • Discoloured or dirty facade joints
  • Cold air coming in at window perimeters

Projects at schools like Manorfield Primary and Nursery School work to term dates, so mastic is programmed tightly.

What to look for in a quote

  • The named product and why it was chosen
  • Whether their applicators hold CSCS cards
  • Their approach to joint depth and backing
  • How long is the guarantee, and what does it include?

Choosing a commercial sealant contractor

Facade sealing in Hookwood

External sealing depends on the weather more than most trades. The sealant needs a dry joint and temperatures inside the maker’s limits. We build that into the programme and tell you if the forecast changes the plan. We work on window and door perimeters, cladding panel joints and coping and flashing joints, and the usual reasons a site gets in touch are perimeter sealant that has split or peeled away and new sealant peeling off old mastic. A single leaking joint is often how a building in Hookwood first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.

For a site near Hookwood, the mastic visit is planned so the right sealants, primers and backing rod are on hand. Send drawings or photos and the programme and we will quote to suit.

Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.

Where
Hookwood (RH6)
Region
Surrey
Cover
12 months on our workmanship
Price
A fixed quote before we start
Call
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

How a job runs

Working in a building that stays open takes some planning. 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 Hookwood, we aim to finish in one visit, so we ask for photographs and rough sizes first. That way the right products come on the day.

  1. We start with photographs, drawings or a visit to see the joints and agree access.
  2. We confirm the joint type, movement and the specified product.
  3. Failed beads are removed in full and the joint faces cleaned.
  4. Primer goes on where the product data asks for it.
  5. Rod goes in to fix the depth, then the joint is sealed and tooled.
  6. The finished joints are checked with you.

Preparing the site

  • Tell us what induction or permit system the site runs
  • Make sure the joints can be reached
  • Tell us which areas need to stay in use

Request a quote

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. For a chat about it beforehand, call the office on 01277 525 020 or use the quote form.

Ask for a quote

Read more

When it isn’t the sealant

Our job is the joint, not everything around it. Sealant alone won’t deal with:

  • Arranging specialist high-level access, which is planned with the client
  • Joints too narrow for the movement they take, which need redesign
  • Water getting in through cracked render or porous masonry

If you are not sure, just phone 01277 525 020 or email us and we will give you a straight answer before you book.

Where we work in Hookwood

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

Questions we’re asked in Hookwood

Would you work within a site like Spire Gatwick Park Hospital (Private)?

Yes. We work in healthcare settings as well as offices and schools. Each area is agreed with the ward or department and the estates team in advance.

Will you take on work at estates like Gatwick Business Park, close to Hookwood?

Yes. Estates, retail parks and business parks around Hookwood, Gatwick Business Park among them, are all within reach. Photos and a short description are enough for a first look.

Do you cover Hookwood?

Yes. We cover Hookwood, within our coverage of Greater London, South East England and Scotland. To discuss a job, give us a call on 01277 525 020 or email a schedule or drawings.

Can you follow the specification on our project?

Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.

Should we check old sealant for asbestos?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. The dutyholder’s asbestos register should be checked first. We don’t remove asbestos-containing materials.

Do you take on small jobs?

Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.

Are you insured?

Yes. Mastic Doctor is fully insured, public liability included.

Commercial clients in Hookwood

As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.

Hotels, schools, healthcare sites, offices and retail units book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.

General trades versus a specialist

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, which is what makes a joint last.

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

How the job changes by surface

Precast concrete panels

Concrete edges can be dusty or weak. Faces are cleaned to sound concrete, and damaged edges are reported first.

Render and coated surfaces

Where the joint will be painted over, a paintable hybrid or PU sealant may suit. The choice depends on the specification and finish.

Building and refurbishing in Hookwood

The South East is one of the drier parts of the UK. Even so, frost and condensation on steel and glass are common on winter mornings, which is why external dates are agreed with the site manager. Hookwood lies roughly 23 miles out from central London. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, which keeps mastic packages in demand.

Hospital estates such as Spire Gatwick Park Hospital (Private) (to the east of Hookwood) 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. Hotels like Travelodge Gatwick Airport Central Hotel, 0.5 miles east of Hookwood, rarely close for long, so refurbishment mastic is phased floor by floor.

Hookwood is about 1 mile south-west of Horley, in Surrey. Across the RH6 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Hookwood is one of 379 places we cover in Surrey. Sites around London have their own page, about 23 miles away.

Business premises anywhere in RH6 are within our area for facade joints. For a building on Campbell Close, Mistley Gardens and Kennel Lane or nearby, we can quote for facade joints. We also cover Horley (1 mile north-east), Fernhill (2 miles east), Tinsley Green (2 miles south-east), Langley Green (3 miles south) and Shipley Bridge (3 miles south-east). Bigger towns within reach include Epsom (12 miles north), Redhill (5 miles north), Ewell (13 miles north), Reigate (5 miles north), Caterham (9 miles north-east) and Dorking (7 miles north-west).

Near you in Hookwood

Around Hookwood, our work takes us to commercial buildings near Black Horse pub and Oakwood School, among other places. The closest station to Hookwood is Horley station, about 1.2 miles east of the centre. Nearby you will also find Crawley Museum (3.5 miles south) and Langley Green Hospital (2.6 miles south).

Map of Hookwood © OpenStreetMap contributors
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