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

Sealant specialists in Ewell

Sealant work for offices, shops, hotels and other commercial buildings throughout Ewell and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Mouldy silicone around WCs, urinals and vanity tops
  • Hardened, chalky sealant on south-facing or exposed elevations
  • Frame mastic that has hardened and come away from the wall
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
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Commercial sealant contractors near Ewell

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

How we handle commercial sealant contractors in Ewell

Most commercial buildings carry hundreds of metres of sealant that nobody thinks about until it fails. We’re commercial sealant applicators for FMs, managing agents, landlords and contractors looking after property in Ewell. We find out why the sealant joints failed, take them out and seal again using a sealant that suits the joint. If you’re dealing with layers of sealant, all of them failing and shrunken sealant along kitchen worktops and splashbacks, we can put it right. For commercial sealant work in Ewell, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

If you look after more than one building near Ewell, the work can be planned as one programme, so standards and paperwork match across every site.

Many businesses in towns like Ewell work from older buildings that have been altered more than once. Joints where brick or render meets a newer frame or panel move differently, so the sealant has to suit both sides.

Whoever the client is, the cover is the same: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

Location
Ewell (KT19, KT17, SM2)
Region
Surrey
Guarantee
A 12-month guarantee
Quote
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Honest limits

Honesty saves time and money. New sealant won’t cure:

  • Cracking that needs a structural engineer to look at it
  • Leaking roofs, gutters or flat-roof membranes (those need a roofer)
  • Water from a services leak rather than a joint

Not sure which it is? You can give us a call on 01277 525 020 or email us and we’ll tell you honestly before you book.

Surfaces we seal

  • Kitchen worktops and splashbacks
  • External facade joints
  • Window and door perimeters
  • Movement joints in walls and floors
  • Floor and threshold joints
  • Washrooms and tea points

Questions about Ewell

Do hotels near Ewell have to close for sealant work?

Rarely, if ever. We take a few rooms out at a time. Tell us your quiet periods and access windows and we’ll plan around them.

Can you match sealant colours for premises in Ewell?

Yes, sealants come in a wide range of standard colours, and matching to RAL references, cladding, stone or frames is a common request. Send colour references or photos and we will confirm what’s available for the product.

Do you check for asbestos before removing sealant?

In buildings from before 2000 in particular, some old mastics and sealants may contain asbestos. Before cutting anything out, we ask for the asbestos register or survey, and if something is suspected, work stops until it’s tested.

Do you seal on top of existing 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.

Do your applicators hold CSCS cards?

Yes. We use CSCS-carded applicators, which many sites require.

How do you choose the sealant?

A specification, where there is one, decides it. Without one, the joint decides: its movement, its surfaces and what it has to cope with.

Is the old sealant taken out first?

Removal of the failed sealant is always part of the job. New sealant can’t grip the old bead, so laying over it never lasts, and the faces are brought back to sound, dry material before resealing.

Owners, agents and contractors

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.

We work for building owners and managing agents on everything from one building to a spread of sites around Ewell. Several sites can go on one quote, so there’s one set of paperwork to deal with.

Site staff or a sealant specialist?

Redoing a failed joint usually costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong normally costs more in the end than doing them right.

From enquiry to sign-off

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. 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. Most work in Ewell is one building at a time: a school, a unit, an office or a block. We start with your photographs, drawings or a site visit, then send a fixed quote.

  1. Site photographs, drawings or a visit tell us what’s there and how it has failed.
  2. A fixed quote follows, with removal and preparation included.
  3. Sequence, access and working times are settled before the first joint is touched.
  4. The failed sealant comes out and the faces are prepared, with primer where required.
  5. Depth is set with backing, then the sealant is applied, tooled and the area tidied.
  6. We hand back each area with its cure time and our 12-month guarantee.

Preparing the site

  • Make sure the joints can be reached
  • Let building users know which areas are affected
  • Have the specification and drawings to hand

Getting a fixed quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to phone 01277 525 020 or email us with what you know.

Ask for a quote

Read more

Shops, offices and hotels in and around Ewell

Ewell has at least three named business or industrial parks inside a 3-mile radius. Tenant changes on such sites bring fit-outs, and fit-outs bring new joints, often in a colour the occupier specifies. Ewell is about 12 miles from central London. This part of the South East is dense with business parks and out-of-town offices. Multi-site occupiers here often want one sealant contractor across all their buildings.

Shops and cafés around stations like Ewell West station, less than half a mile south of Ewell, trade from early, so work is timed around them. If you run a unit on an estate such as Longmead Industrial Estate, 0.8 miles to the south-west of Ewell, the trade counter, offices and staff facilities have joints to look after as well as the warehouse. A hotel such as Spring Hotel (less than half a mile south-east of Ewell) shows how much sealant a hospitality building has on show, from bathroom joints to the bar.

Ewell is about 10 miles south of Kensington, in Surrey. Ewell sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 379 places across Surrey fall within our area, including Ewell. Our London page has more on work in that area, about 12 miles away.

Commercial sites across KT19, KT17 and SM2 are covered. For a building on London Road, High Street and Church Road or nearby, send details and we will quote for sealant joints. Ewell sits on or close to the A24 and A232, useful when we plan access and materials. Close to Ewell, our area also takes in Stoneleigh (1 mile north-east), Cuddington (1 mile east), Epsom (1 mile south-west), Worcester Park (1 mile north) and North Looe (1 mile south-east). A short drive away, we cover Woking (14 miles west), Horley (13 miles south), Redhill (9 miles south-east), Egham (14 miles north-west), Reigate (8 miles south) and Walton-on-Thames (7 miles west). Ewell is one of the busier places in Surrey, and we take on sealant joints for its commercial and public buildings.

What’s near Ewell

In Ewell, that means premises near Blenheim High School, King William IV Public House and Hogsmill LNR. There’s a railway station in Ewell itself: Ewell West station. Nearby you will also find Chessington Castle Hill (1.6 miles west) and St. Ebba's Hospital (0.9 miles west). For a walk, there’s Tolworth Court Farm Fields and The Lake.

Map of Ewell © OpenStreetMap contributors

Why deal with it now?

Some low prices are low because nothing gets cut out. New sealant laid on old silicone has nothing to bond to, so it peels. Every quote we give includes full removal and preparation, because that’s what makes the new bead last. In Ewell, as anywhere, the simplest time to fix a failed joint is before it leaks. Once water gets in, there’s drying out and making good as well.

Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote and we’ll put a fixed figure on it.

Why choose Mastic Doctor in Ewell

  • Colours confirmed for the specified product
  • Work carried out by CSCS-carded applicators
  • Clear, fixed quotes
  • Work to your specification and the manufacturer’s guidance

Read how commercial sealant jobs are priced or how we’re accredited.

Different surfaces, different methods

Shop fronts and retail fit-outs

In retail, sealant is on show. Joints around counters, displays and shopfront frames have to look tidy as well as seal. Colour options are confirmed with the quote.

Washrooms and toilets

Black sealant in a toilet block is normally beyond cleaning. Replacement is the fix: strip, clean, dry and reseal.

Accreditations

Trusted. Accredited. Insured.