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

Facade Sealing contractors in Brentham Garden Suburb

Facade joint and window perimeter sealing on commercial buildings in Brentham Garden Suburb. CHAS accredited and fully insured, with a 12-month guarantee.

  • Cladding panel joints that have opened up
  • Draughts around frames and panels
  • Perimeter joints where frames meet the structure
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
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Facade sealing in Brentham Garden Suburb

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

Questions about Brentham Garden Suburb

Do you take on work at healthcare sites like Cygnet Hospital Ealing?

Yes, healthcare and care buildings are part of our work. Each area is agreed with the ward or department and the estates team in advance.

Can work at a site such as University of West London fit around teaching?

Yes. We plan campus work around teaching, exams and residence turnarounds. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.

Will you quote for a small job?

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

Is it fine to apply new sealant on top of old?

No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.

When can you be on site?

We’re in the office from 8am until 5pm, Monday to Friday. Let us know your site hours and access windows, and the work will be planned around them.

Are you CHAS accredited and on Constructionline?

Yes. We’re CHAS accredited and a Constructionline member, which helps with supplier vetting.

How long before the joints can be used?

The product and site conditions decide that. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.

How we handle facade sealing in Brentham Garden Suburb

Most facade joint failures trace back to the joint, not just the sealant. Joint width needs to match how far the joint moves and how far the sealant can stretch, while rod fixes the depth and stops the bead sticking to the rear, often at around 2:1 width to depth, as the manufacturer advises. We work on coping and flashing joints, window and door perimeters and shopfront frames, and what we’re called in for most is perimeter sealant that has split or peeled away and water coming in around window frames. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Brentham Garden Suburb it comes down to the same thing: the right product in a properly prepared joint.

Every London site, Brentham Garden Suburb included, is inside the ULEZ, which applies to deliveries and contractors’ vans alike. Alongside that, sites usually need booked deliveries and a plan for where materials go.

Work we carry out comes with a 12-month guarantee. If an installation problem shows up, ring 01277 525 020 or email a schedule or drawings and we’ll arrange a return visit.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Brentham Garden Suburb (W5, W13, UB6)
Wider area
Greater London
Guarantee
12 months on every job
Price
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026

Do you need facade sealing in Brentham Garden Suburb?

New sealant run over old sealant rarely holds. Fresh silicone won’t stick to cured silicone.

What tends to prompt an enquiry:

  • Cladding panel joints that have opened up
  • Weathered facade joints that have lost their grip
  • Patch repairs that keep failing
  • Facade joints cracked through the middle

Hotels like The Drayton Court Hotel, 1 mile to the south-west of Brentham Garden Suburb, rarely close for long, so refurbishment mastic is phased floor by floor.

Questions to ask before you book

  • Which product they’ll use, and why it suits the joint
  • What the guarantee covers, and for how long
  • Will failed sealant be removed rather than covered?
  • How the joint faces will be prepared and primed

Our contractor checklist

Contractors’ notes for Brentham Garden Suburb

Every borough of Greater London is inside the ULEZ, and that applies to contractors’ vehicles on any job in Brentham Garden Suburb. Delivery slots and scarce storage shape how and when the mastic goes in. The area within 2 miles of Brentham Garden Suburb holds plenty of hotels. When hotels extend or refit, the work is typically squeezed between peak periods, mastic included.

For contractors on a campus like University of West London, 1 mile to the south of Brentham Garden Suburb, facade and perimeter sealing has to fit around students and term dates. Units on estates such as Manhattan Business Park (to the north-east of Brentham Garden Suburb) tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal.

Brentham Garden Suburb is about 1 mile north of Ealing, in Greater London. Commercial clients in Brentham Garden Suburb use us for work on facade joints. Brentham Garden Suburb is one of 764 places we cover in Greater London. Our London page has more on work in that area.

If you need facade sealing in W5, W13 and UB6, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Buildings on Kings Road, Selby Road and Marsh Road are within our area. Just outside Brentham Garden Suburb, we also work in Pitshanger (1 mile west), Perivale (1 mile north-west), Ealing (1 mile south), Hanwell (2 miles south-west) and South Ealing (2 miles south). A short drive away, we cover London (9 miles east), City of Westminster (7 miles east), Marylebone (7 miles east), Kensington (5 miles east), St Pancras (8 miles east) and Shoreditch (10 miles east).

Near you in Brentham Garden Suburb

Recent enquiries here include premises near Ealing Independent College, Library for Iranian Studies and St Benedict's School and the streets around them. Nearby too are Castle Bar Park (1 mile west) and Brentham Clubhouse pub (under half a mile north-west). The closest station to Brentham Garden Suburb is Ealing Broadway station, roughly 0.9 miles south. Nearby you’ll also find London Transport Museum Depot (1.9 miles south-east) and Central Middlesex Hospital (1.7 miles east). For a walk, there’s Castlebar Hill and Middle Lake.

Map of Brentham Garden Suburb © OpenStreetMap contributors

Keeping the joints sound

Once the work is signed off, these steps help:

  • Inspect facade joints on a regular cycle
  • Combine resealing with other works that need access
  • Don’t wait for a second leak before calling
  • Insist on a full cut-out when joints are renewed

Hold back any cleaning crew until the joints have had their stated cure time. Pressure washers and harsh cleaners can damage a fresh bead, so brief your window cleaners.

Deal with sections that fail early as soon as they show. Small repairs stop small leaks becoming large ones.

Our process

When we get to site, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before any cutting starts, with the work itself typically taking anything from a single day to several weeks, depending on joint lengths, access and the weather. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.

  1. We plan access and the order of elevations with the client.
  2. Weather and temperature are checked against the product’s limits.
  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

  • Move anything stored against the joints
  • Share your working hours and any access restrictions
  • Share the asbestos register for older buildings

Getting a fixed quote

Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. For smaller jobs, photos and a description will do.

Ask for a quote

Related advice

Honest limits

A few problems need another trade or a different fix, and we say so rather than covering them up:

  • Replacing glass or failed glazing units
  • Joints too narrow for the movement they take, which need redesign
  • Damp caused by condensation inside the building

If in doubt, give us a call on 01277 525 020 or email a schedule or drawings and we will say what we think.

Surfaces we seal

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

Quoting for work in Brentham Garden Suburb

To price the job, we consider:

  • Quantities, in metres or numbers
  • How much existing material needs removing
  • Travel to remote or island sites
  • Backing rod, priming and other preparation

Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.

Sending details for a quote

Diagnosis starts before we arrive. Let us know:

  • Anything awkward about access or site hours
  • What the building is and how it’s used
  • The asbestos register, for older buildings
  • Your programme or deadline

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.

When to bring in a specialist

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Accreditations

Trusted. Accredited. Insured.