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

Chessington mastic sealing

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

  • Complaints coming in block by block
  • Movement joints with sealant missing
  • Window mastic that has split and shrunk
1
Send details
Photos, drawings or a schedule, or we visit.
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
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
Constructionline member
£5m PL insurance

Mastic sealing for businesses in Chessington

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Commercial clients in Chessington

As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. We are fully insured, and our insurance certificate can go with the quote.

Hospitality, education, healthcare, office and retail clients book us directly too. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.

About our mastic sealing in Chessington

Managing agents and housing associations normally need paperwork before anyone starts. For documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We’re a Constructionline member and CHAS accredited, and we carry public liability insurance. If you have window mastic that has split and shrunk and complaints coming in block by block, we can put it right, whatever the surface. Searching for sealant specialists in Chessington? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.

In a London area such as Chessington, many buildings are blocks of flats or mixed-use buildings run by managing agents, landlords or housing associations. Window and door perimeters, balcony joints and communal areas all have mastic that ages together across a building.

We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Chessington (KT9, KT19, KT6)
Region
Greater London
Cover
A 12-month guarantee
Quotes
Quoted before any work starts
Telephone
01277 525 020
Last updated
3 November 2026

What happens if it’s left?

Mixed repairs by different contractors leave a patchwork of products and colours. A block-wide reseal gives one product, one colour and one guarantee and one 12-month guarantee. In a London building, a failed joint rarely affects only one party. Dealing with it early is simpler for everyone.

A quote for mastic joints depends on how many there are, their condition and the access, plus any specification you’re working to. Ask us for a fixed quote.

Why choose Mastic Doctor in Chessington

  • CHAS accredited contractor
  • One phone line for London, the South East and Scotland
  • RAL and finish matching where the product range allows
  • Over 20 years of commercial sealing

Take a look at our cost guide or our accreditations.

When to call us in Chessington

Previous repairs often sealed new mastic over old. New sealant won’t grip failed sealant, so these repairs rarely last.

Site and facilities staff are often the first to spot these:

  • Brittle perimeter mastic across a building
  • No planned programme for sealant
  • Open joints in brickwork or panels
  • The same joint failures repeated across a portfolio

Student blocks close to universities like Kingston University Penrhyn Road Campus, 2.7 miles north of Chessington, are easiest to work on between tenancies.

What your quote should include

  • How the existing material will be dealt with
  • Their approach to joint depth and backing
  • What the guarantee covers, and for how long
  • What site paperwork they can supply

How to choose a sealant contractor

What we can’t put right

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:

  • Broken glass or failed sealed units
  • Leaks from above rather than through a joint
  • Failed window or door frames, which need a window contractor

Not sure which it is? You can phone 01277 525 020 or send details through our quote form and we’ll tell you honestly.

Joints and surfaces we work on

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

General trades versus a specialist

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.

Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

Common questions from Chessington clients

Does your area include sites such as Barwell Business Park, near Chessington?

Yes. Our area takes in Chessington and its surroundings, with estates and business parks such as Barwell Business Park included. To start, just ring 01277 525 020 or email a schedule or drawings with the unit, the joints involved and your access times.

Can you work in a care home near Chessington with residents in?

Yes. We agree rooms and times with the manager and work a few areas at a time. Tell us about any infection-control or safeguarding requirements and we’ll work to them.

How long does a job like this take?

That varies with the scale of the job, but the work normally takes a few days for most blocks, with larger programmes scheduled building by building. For bigger or phased jobs, we will set out a timescale with the quote.

Is asbestos a concern with old mastic?

In older buildings, old mastic can contain asbestos. We check the asbestos register or survey before disturbing it and suspect material is tested first.

How do we ask for a quote?

You can use the quote form on this site; alternatively, phone 01277 525 020 or email a schedule or drawings. Include photographs or drawings if you have them.

Do you work with property factors and landlords?

Yes, that’s exactly who this service is for. We work through buildings in a planned order so you can plan around it.

What about access for upper-floor joints?

Every block is different. We agree access with you at quote stage so the fixed quote reflects it.

Our process

Where the site stays busy, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed, then handed back before we move to the next. All of Greater London is in the ULEZ, and kerbside space in Chessington can be scarce. Let us know about any on-site parking or loading arrangements when you send the job details.

  1. We inspect the joints, building by building, and record what has failed and why.
  2. A fixed quote follows, split by block or building if that suits you.
  3. Dates, areas and access are agreed so residents or tenants can be told in advance.
  4. We remove the old mastic completely and clean the joint faces back.
  5. Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
  6. Finished joints are looked over and the 12-month guarantee confirmed.

Preparing the site

  • Confirm the product named in the specification
  • Point out parking and an unloading spot
  • Clear stock, furniture or equipment away from the joints

Request a quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, call 01277 525 020 or send details through our quote form.

Get a quick quote

Advice

For owners and agents in Chessington

Blocks in London are normally run by managing agents, landlords or housing associations, with residents to notify and access to arrange. We fit the programme to your notice periods. Eight care or nursing homes sit less than 2 miles from Chessington. For owners and operators of care buildings, window perimeters and external joints are best renewed in planned phases around residents.

Trustees of buildings like Church of St Mary the Virgin can bring frame and external mastic into a planned maintenance list. For agents with blocks near Chessington North station (under half a mile north-west of Chessington), a block-wide mastic programme deals with frames, balconies and entrances in one go.

Chessington is about 2 miles north-west of Epsom, in Greater London. Businesses, contractors and managing agents in Chessington use us for work on mastic joints. 764 places across Greater London fall within our area, including Chessington. Our London page has more on work in that area.

We take on mastic joints across the KT9, KT19 and KT6 postcode area, for business premises of every kind. Streets here include Elm Road, Cox Lane and Moor Lane. Chessington sits on or close to the A243. If your building is just outside Chessington, we cover Horton (1 mile south), Old Malden (2 miles north-east), Tolworth (2 miles north-east), Surbiton (2 miles north) and Worcester Park (2 miles east). Nearby towns on our patch include London (13 miles north-east), City of Westminster (12 miles north-east), Marylebone (13 miles north-east), Kensington (10 miles north-east), St Pancras (14 miles north-east) and Shoreditch (15 miles north-east).

Local landmarks in Chessington

In Chessington, that means premises near Shrewsbury House School, Chessington Community College and Horton Country Park, among other places. Chessington has its own railway station: Chessington North station. Well-known places in the area include Tolworth Hospital (1.2 miles north-east) and Chessington Castle Hill (0.5 miles south-east). Not far away are Kingston Hill Road area and Bonesgate Open Space.

Map of Chessington © OpenStreetMap contributors
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