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

Facade Sealing in Oval

Sealant work in Oval for main contractors, managing agents and facilities managers: facade joint and window perimeter sealing on commercial buildings, quoted at a fixed price.

  • Facade joints cracked through the middle
  • Weathered facade joints that have lost their grip
  • Gaps between rainscreen or cladding panels
1
Send details
Photos, drawings or a schedule, or we 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
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Need facade sealing in Oval?

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

Signs you need facade sealing in Oval

When the sealant tears down its centre, it has typically been asked to move more than it can. The joint may be too narrow, the bead too thin or the sealant the wrong movement class.

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

  • Staining on stone next to old sealant
  • Water coming in around window frames
  • Cladding panel joints that have opened up
  • Old perimeter mastic that has dried out

Recladding or extending a unit at a site like Handel Business Centre, under half a mile to the north-west of Oval, brings panel joints and frame perimeters into the programme.

What your quote should include

  • Their approach to joint depth and backing
  • Their plan for phasing and protecting the area
  • Are they CHAS accredited or on Constructionline?
  • Is the sealant right for the movement and the substrate?

How to choose a sealant contractor

How we handle facade sealing in Oval

Installing framed glazing systems isn’t part of our work. We handle the sealant joints that surround those elements: perimeter joints where frames meet the structure, panel joints and window perimeters. If you’re dealing with cold air coming in at window perimeters and staining on stone next to old sealant, we can put it right, whatever the surface. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Oval, that means joint design, primers and backing rod as standard.

Around Oval, as across London, much of the work is refurbishing existing buildings as well as building new ones. New frames, overcladding and fit-outs all end in perimeter and facade joints, frequently with occupants close by.

Our workmanship is guaranteed for 12 months. If a joint we sealed fails because of how it was installed, we come back and put it right.

Place
Oval (SW8, SW9, SW1P)
Region
Greater London
Guarantee
12 months on our workmanship
Price
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Why it’s worth doing now in Oval

Each spell of rain drives water past a failed facade joint. The damage builds out of sight: wet linings, rusting fixings, staining and spoiled finishes. Resealing early costs far less than repairing what the water reaches. Repeat call-outs disrupt occupied London buildings, so a proper job first time, with the old sealant fully removed, is worth it.

Pricing facade joints depends on quantities, condition and access, plus any specification you are working to. Call for a quote.

Why clients in Oval choose us

  • Colour options checked against the specified product
  • Work carried out by CSCS-carded applicators
  • Old sealant cut out, never sealed over
  • One phone line for London, the South East and Scotland

See our cost guide or our accreditations.

Facade sealing in Oval: the local picture

Site traffic in Oval falls within London’s ULEZ, like everywhere else in Greater London. Delivery slots and scarce storage shape how and when the mastic goes in. The area within 2 miles of Oval holds a good number of hotels. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.

Hotel extensions and refits, at places such as Belgrave Hotel London, which lies east of Oval, normally run between busy periods, so the sealing is squeezed into short windows. Further education sites such as Chelsea College of Art & Design, 0.7 miles north-west of Oval, are extended and refurbished from time to time, with mastic often programmed into the summer break.

Oval is about 1 mile north of Stockwell, in Greater London. Anywhere in SW8, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. We work across 764 places in Greater London, large and small.

We take on facade joints across the SW8, SW9 and SW1P postcode area, for business premises of every kind. Buildings on Lett Road, Rita Road and Wyvil Road are within our area. Oval sits on or close to the A203 and A3204. Close to Oval, our area also takes in Kennington (1 mile north), South Lambeth (1 mile south-west), Little Portugal (1 mile south), North Brixton (1 mile south-east) and Vauxhall (1 mile north). A short drive away, we cover City of Westminster (3 miles north-west), Marylebone (3 miles north-west), Kensington (4 miles west), St Pancras (3 miles north), Shoreditch (4 miles north-east) and Walthamstow (8 miles north-east).

Near you in Oval

Locally, jobs take us to sites close to Vauxhall Park, Lambeth Palace Library and St Peter's School, among other places. Other local landmarks include Archbishop Tenison's Church of England School (under half a mile north-east) and Crown and Thistle pub (under half a mile south-west). Oval has its own railway station: Vauxhall station. Well-known places in the area include Type Museum (0.5 miles south) and The Gordon Hospital (1 mile north-west). Not far away are Bellenden Road Nature Garden and Ludgate Hill.

Map of Oval © OpenStreetMap contributors

Questions we are asked in Oval

Will you take on work at estates like Handel Business Centre, close to Oval?

Yes. Our area takes in Oval and its surroundings, with estates and business parks such as Handel Business Centre included. Send details of the unit and the work through our quote form for a quick quote.

Do you take on jobs in Oval where loading and access are tightly controlled?

Yes. Inductions, permits and timed loading are routine for us in London. The building manager’s rules go straight into our method.

Can you send site paperwork?

Each site asks for different documents, so list what you need, whether RAMS, insurance or CSCS details, and we’ll confirm with the quote.

Is your workmanship covered by a guarantee?

Yes. The 12-month guarantee covers our preparation and application, but not damage, misuse or other trades’ work.

Do you need to see the site first?

Photos, drawings or a schedule are often enough to quote. Where they aren’t, we arrange a site visit.

Is Oval in your area?

Yes. We take on work across Oval, and the same phone number covers every area.

What’s the quickest route to a quote?

The quote form is the simplest route, though you can also call 01277 525 020 or use the quote form. Photos, drawings or a joint schedule help us quote quickly.

What the job involves on each surface

Window and door perimeters

Perimeter joints move as frames expand and contract in the sun. The rod limits depth, leaving the bead able to flex as the frame moves.

Precast concrete panels

Joints between precast panels carry real movement. We use a sealant with the right movement capability, set over backing rod.

How a job runs

Inspect, seal, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. In Oval, most buildings stay in use during the work, so zones and timings are agreed with whoever manages the building. Areas are handed back as each section is finished.

  1. We plan access and the order of elevations with the client.
  2. We only seal when joints are dry and within the product’s temperature range.
  3. Each joint is cut out and the edges inspected.
  4. Faces are cleaned, primed where needed and backed.
  5. Facade-grade sealant goes in and is tooled to a tidy concave profile.
  6. Once signed off, the work carries our 12-month guarantee.

Preparing the site

  • Tell us what induction or permit system the site runs
  • Tell us your opening times and when work is allowed
  • Have the specification and drawings to hand

Quotes

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.

Get a price

Advice

For managing agents and facilities managers

Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.

Doing it in-house

Redoing a failed joint typically 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.

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Accreditations

Trusted. Accredited. Insured.