Facade and window perimeter sealing in Gunnersbury, Greater London
Work needed on a facade joint in Gunnersbury? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Unsightly perimeter sealant on a visible elevation
- Hard, chalky sealant that no longer flexes
- New sealant peeling off old mastic
Facade sealing across Gunnersbury
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
On site: what to expect
Before we leave any area, the masking comes off, the area is cleaned and every joint is checked, ready for your sign-off. If an area should be left alone while the sealant cures, we say how long and put signs out. In Gunnersbury, most buildings stay in use during the work, so we agree zones and timings with the building or facilities manager. Areas are handed back as each section is finished.
- Access, site rules and timing are settled with the client up front.
- Weather and temperature are checked against the product’s limits.
- Each joint is cut out and the edges inspected.
- Faces are cleaned, primed where needed and backed.
- Sealant is gunned in and tooled hard onto both faces.
- Once signed off, the work carries our 12-month guarantee.
What we need from you
- Send asbestos survey details if the building is pre-2000
- Tell staff and tenants when we’ll be in
- Point out parking and an unloading spot
Get a fixed quote
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.
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Facade sealing for commercial buildings in Gunnersbury
Access is part of every facade job, and we plan it with you before quoting. Tell us about access: whether scaffold is already up, what the client is arranging, and any restrictions on the site. We work on cladding panel joints, window and door perimeters and coping and flashing joints, and the failures we are asked to look at most are draughts around frames and panels and staining on stone next to old sealant. Most enquiries from Gunnersbury start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.
The ULEZ covers the whole of Greater London, so contractors’ vehicles on a job in Gunnersbury must meet its standards or pay the daily charge. Add booked delivery slots and limited storage, and a London mastic package needs planning before the first bead.
Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and the quote explains what it covers.
- Where
- Gunnersbury (W4, W3, TW8)
- Wider area
- Greater London
- Cover
- 12 months on every job
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Also near Gunnersbury
Other services in Gunnersbury
Why act early in Gunnersbury
A few metres of new sealant compare well with replacing ceilings, linings or damaged stock. Water through a failed joint rarely stays where it starts. In a London building, a failed joint rarely affects only one party: water travels through shared structures, and a small leak becomes a dispute between occupiers. Dealing with it early is simpler for everyone.
Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
What you get with us
- Colour options checked against the specified product
- Workmanship guaranteed for 12 months
- Fixed quotes based on photographs, drawings or a visit
- Standard and matched colours in many product ranges
See how commercial sealant jobs are priced and how we’re accredited.
When it isn’t the sealant
A proper diagnosis includes knowing what sealant can’t do. We’ll tell you if the real problem is any of the following:
- Damp caused by condensation inside the building
- Damaged frames that need replacing
- Specialist high-level access methods
If in doubt, call 01277 525 020 or email drawings and photos and we will say what we think before you book.
Surfaces we seal
- Coping and flashing joints
- Window and door perimeters
- Shopfront frames
- Stone and brick facade joints
- Perimeter joints where frames meet the structure
- Cladding panel joints
Sites and facades in and around Gunnersbury
The ULEZ covers the whole of Greater London, Gunnersbury included, so site vehicles need to meet its standards or pay the daily charge. Delivery slots and scarce storage shape how and when the mastic goes in. Plenty of hotels sit less than 2 miles from Gunnersbury. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.
Further education sites such as Ealing and West London College (1.8 miles north-west of Gunnersbury) are extended and refurbished from time to time, with mastic often programmed into the summer break. Recladding or extending a unit at a site like Kew Retail Park (1 mile south of Gunnersbury) brings panel joints and frame perimeters into the programme.
Gunnersbury is about 1 mile south of Acton, in Greater London. Our applicators travel to Gunnersbury for work on facade joints, handled exactly as we handle every other area. Our Greater London coverage takes in 764 places, large and small. Our London page has more on work in that area.
We take on facade joints across the W4, W3 and TW8 postcode area, for business premises of every kind. Streets here include Kew Road, Kent Road and Power Road, and sites on any of them can send details for a fixed quote. Being close to the A3000, Gunnersbury is straightforward for us to reach. Just outside Gunnersbury, we also work in Strand-on-the-Green (1 mile south), Kew (1 mile south), Grove Park (1 mile south-east), Chiswick (1 mile east) and Turnham Green (1 mile south-east). Further afield, our area takes in London (8 miles east), City of Westminster (6 miles east), Marylebone (6 miles east), Kensington (3 miles east), St Pancras (7 miles east) and Shoreditch (9 miles east).
Landmarks near Gunnersbury
Locally, jobs take us to sites close to Clayton Hotel Chiswick, Kew College Prep and Ark Acton Academy. Also close by are Turnham Green (0.5 miles east) and Library for Iranian Studies (1 mile north). Gunnersbury has its own railway station: Gunnersbury station. Well-known places in the area include Barnes Hospital (2 miles south-east) and Livat Hammersmith (2.1 miles east). The countryside around Gunnersbury includes Kew Gardens Lake and Castlebar Hill.
Questions we are asked in Gunnersbury
Does your area include sites such as Kew Retail Park, near Gunnersbury?
Yes, sites like Kew Retail Park are within our area, along with the rest of Gunnersbury. To start, just phone 01277 525 020 or email us with the unit, the joints involved and your access times.
Can you cope with the access rules in a London building?
Yes, we plan every London job around the building’s own access rules. Send the building rules and access times with your enquiry.
Is Gunnersbury in your area?
Yes. We cover Gunnersbury and the rest of Greater London, within our coverage of Greater London, South East England and Scotland. For a quote, ring 01277 525 020 or use the quote form.
Will your applicators have CSCS cards?
Yes. Our applicators hold CSCS cards, as many construction sites ask for.
Are you CHAS accredited?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member.
Does the weather affect the work?
Outside, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and the quote will be based on it, flagging anything that needs clarifying.
Signs you need facade sealing in Gunnersbury
Sun, rain and temperature swings wear facade sealant down over the years. UV and weather harden the sealant until it can’t stretch with the building, and cracks or adhesion loss follow.
It’s worth sending us details if you spot any of the following:
- New sealant peeling off old mastic
- Cold air coming in at window perimeters
- Gaps between rainscreen or cladding panels
- Staining on stone next to old sealant
New wings at hospitals like Clayponds Hospital (to the west of Gunnersbury) bring long runs of window and panel joints to seal.
What to look for in a quote
- Their pre-qualification and accreditations
- Who will actually carry out the work
- Their public liability cover
- Their plan for phasing and protecting the area
What affects the price in Gunnersbury
Sealant work doesn’t have a standard rate, because every site is different. What we look at:
- Any access equipment needed
- Quantities, in metres or numbers
- Removal of failed or old sealant
- Whether the work must be split into stages
The price depends on how many linear metres there are, what has to come out first and how the joints are reached. Call for a fixed quote when you are ready.
Before you send an enquiry
We can often quote from photographs and a few details. It helps to include:
- Where the site is, with the postcode
- When you need the work done
- Drawings or a marked-up plan, if available
- Any specification or named product
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’ll fill any gaps with a visit.
Different surfaces, different methods
Precast concrete panels
Concrete edges can be dusty or weak. We clean back to sound material and flag edges that need repair first.
Brick and stone facades
Brick and stone facades have perimeter and movement joints that need a compatible sealant. We avoid acetoxy silicone, which can stain some natural stone, with primer where its maker specifies.