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

Mastic Sealing in Leatherhead

Need mastic sealing in Leatherhead? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • Old repairs sealed over failed mastic
  • Draught complaints from residents or tenants
  • Failed external movement joints
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
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS accredited
£5m public liability

Mastic sealing in Leatherhead

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

Mastic sealing for commercial buildings in Leatherhead

Managing agents and housing associations usually need paperwork before anyone starts. For documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We’re a Constructionline member and CHAS accredited, and we carry public liability insurance. Most enquiries involve brittle perimeter mastic across a building and worn sealant at communal door frames, across shopfronts below residential blocks, window and door perimeters on blocks and communal kitchens and washrooms. Searching for sealant specialists in Leatherhead? We’ve been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.

Housing associations in towns like Leatherhead often run planned maintenance by estate or by block. Work can move block by block, with you handling resident notices.

A 12-month guarantee applies to all our work. If an installation problem shows up, call 01277 525 020 or email us and we will arrange a return visit.

Where
Leatherhead (KT22)
Region
Surrey
Cover
12 months on our workmanship
Quote
Quoted before any work starts
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Leatherhead: questions and answers

Is Leatherhead Industrial Estate, near Leatherhead, within your area?

Yes. We cover Leatherhead and the area around it, including industrial estates, business parks and retail parks such as Leatherhead Industrial Estate. To start, just call the office on 01277 525 020 or send photos by email with the unit, the joints involved and your access times.

Will you price a mastic programme across our Leatherhead portfolio?

Yes. Planned programmes across a building, block or estate are a core part of this service. We can phase the programme to suit your budgets and notice periods.

How many days will you need on site?

The duration is planned around your programme and the access we are given. You’ll have an expected duration with the quote.

Can you take on resealing for a block portfolio?

Yes. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords, and we quote building by building or as a programme.

Which sealant will you use?

Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

Do you cover Leatherhead?

Yes. Sites across Leatherhead are covered, and the same phone number covers every area.

How do you reach windows on upper floors?

Every block is different. How upper joints are reached is agreed before work is booked so the fixed quote reflects it.

Looking after the joints

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. Our advice:

  • Have the asbestos survey to hand for older buildings
  • Look at the sunniest and most exposed elevations first
  • Make mastic part of routine maintenance checks
  • Track which buildings were done and when

If a joint we sealed fails within 12 months, tell us and we’ll look at it. After that, regular inspection keeps the programme on track.

The longer failed joints are left, the more likely the substrate edges break up. Once that happens, repairs come before resealing.

What the job involves on each surface

Commercial and mixed-use buildings

Tenants in commercial buildings need to keep trading, so we plan around them.

External movement joints

The joint width has to suit the movement and the sealant’s capability with the width-to-depth ratio set as the manufacturer advises.

Our process

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and the sealant is tooled off neatly. Most work in Leatherhead is one building at a time: a school, a unit, an office or a block. Your photos, drawings or a site visit come first, followed by a fixed quote.

  1. A building-by-building inspection lists the failed joints.
  2. The quote is fixed and split as suits you.
  3. We agree the programme and dates with you.
  4. Old mastic is removed and the joint faces prepared.
  5. New sealant goes in with backing rod and primer where needed.
  6. We check the finished work and confirm the guarantee.

Preparing the site

  • Flag any permit to work we will need
  • Send your site hours and access windows
  • Make sure the joints can be reached

Getting a fixed 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, ring 01277 525 020 or send photos by email.

Get a quick quote

Advice

Blocks and managed buildings in Leatherhead

The South East is one of the drier parts of the UK. Outside work still depends on dry joints, and the sunniest, most exposed sides of a building typically need attention first. Central London is about 17 miles from Leatherhead. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres; their frame mastic often ages block-wide.

Schools and community buildings such as Leatherhead Trinity School and Children's Centre need frame and external mastic kept sound like any building. Property owners at sites such as Leatherhead Industrial Estate (less than half a mile west of Leatherhead) can have mastic renewed between lettings. If you are responsible for a building such as Church of Our Lady and St Peter, frame and door mastic needs the same attention as any other property.

Leatherhead is about 4 miles south-west of Epsom, in Surrey. We cover commercial sites throughout Leatherhead, for single jobs and planned programmes alike. 379 places across Surrey fall within our area, Leatherhead among them. Our London page has more on work in that area.

We take on mastic joints across the KT22 postcode area, whatever the building. We cover commercial and managed buildings on High Street, Church Road and Station Road and the roads nearby. Leatherhead sits on or close to the A24 and A245, useful when we plan access and materials. We also cover Fetcham (1 mile west), Mickleham (2 miles south), Great Bookham (2 miles south-west), Westhumble (3 miles south) and Little Bookham (3 miles south-west) for mastic joints. A short drive away, we cover Guildford (11 miles west), Woking (11 miles west), Epsom (4 miles north-east), Horley (11 miles south-east), Redhill (8 miles south-east) and Ewell (5 miles north-east).

Around Leatherhead

Around Leatherhead, our work takes us to commercial buildings near St Andrew's Catholic School, St Andrew's Catholic School and Duke's Head Public House. There’s a railway station in Leatherhead itself: Leatherhead station. A little further out are Walton on the Hill (3.5 miles east) and Headley Court (2.2 miles east). Green spaces nearby include Claremont Lake and Jubilee Wood.

Map of Leatherhead © OpenStreetMap contributors

Why it’s worth doing now in Leatherhead

Leaving failed external joints lets water reach the structure behind. That can lead to damp, staining and damage to finishes and those cost far more to put right. Many buildings in towns like Leatherhead have been extended or altered, so joints between old and new are often the first to go. Resealing them early protects the building behind.

Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.

Why us?

  • 12-month guarantee on workmanship
  • Our applicators hold CSCS cards
  • Colour agreed before work starts
  • Colours chosen to suit frames, cladding or finishes where possible

Take a look at how commercial sealant jobs are priced and how we’re accredited.

Owners, agents and contractors

Building owners and managing agents use us on sealant work across single buildings or whole portfolios. Several sites can go on one quote, so there’s one set of paperwork to deal with.

For main contractors, we work as the sealant subcontractor. Programme, specification and site rules come first.

Honest limits

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

  • Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)
  • Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
  • Leaks from above rather than through a joint

If you are not sure, just call the office on 01277 525 020 or send details through our quote form and we will give you a straight answer.

Joints and surfaces we work on

  • Balcony and threshold joints
  • Communal kitchens and washrooms
  • Window and door perimeters on blocks
  • External wall and movement joints
  • Shopfronts below residential blocks
  • Communal entrances and stairwells
Accreditations

Trusted. Accredited. Insured.